TUALATIN RIVER NEAR DILLEY, OR
USGS 14203500 · Oregon · reports discharge (live), gauge height, water temperature, dissolved oxygen, pH, turbidity, specific conductance
Reading TUALATIN RIVER NEAR DILLEY, OR…
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USGS 14203500 · Oregon · reports discharge (live), gauge height, water temperature, dissolved oxygen, pH, turbidity, specific conductance
What the agencies suggest
Use a thermometer to check water temperatures frequentlyOregon Department of Fish and Wildlife
General guidance from the readings and the published lines named above, not a fishing forecast. Local rules and closures come first.
Reading Nov 5, 8:00 PM PST · provisional USGS data
Normal for Nov 5 Steady · 24 h Below NWS action stage
Discharge, last 7 days: 169 readings from Oct 29, 9:00 PM PDT to Nov 5, 8:00 PM PST; ranging 83.5 to 123 ft³/s; latest 108 ft³/s; shaded band: typical range (25th–75th percentile) for each date.
USGS provisional data may be revised. Source: USGS instantaneous values.
| Time | Discharge (ft³/s) | Gauge height (ft) | Normal, 25th–75th (ft³/s) |
|---|---|---|---|
| Nov 5, 8:00 PM PST | 108 | 10.5 | 83–223 |
| Nov 5, 7:00 PM PST | 107 | 10.5 | 83–223 |
| Nov 5, 6:00 PM PST | 107 | 10.5 | 83–223 |
| Nov 5, 5:00 PM PST | 107 | 10.5 | 83–223 |
| Nov 5, 4:00 PM PST | 107 | 10.5 | 83–223 |
| Nov 5, 3:00 PM PST | 107 | 10.5 | 83–223 |
| Nov 5, 2:00 PM PST | 106 | 10.4 | 83–223 |
| Nov 5, 1:00 PM PST | 106 | 10.4 | 83–223 |
| Nov 5, 12:00 PM PST | 106 | 10.4 | 83–223 |
| Nov 5, 11:00 AM PST | 106 | 10.4 | 83–223 |
| Nov 5, 10:00 AM PST | 106 | 10.4 | 83–223 |
| Nov 5, 9:00 AM PST | 106 | 10.4 | 83–223 |
| Nov 5, 8:00 AM PST | 106 | 10.4 | 83–223 |
| Nov 5, 7:00 AM PST | 106 | 10.4 | 83–223 |
| Nov 5, 6:00 AM PST | 106 | 10.4 | 83–223 |
| Nov 5, 5:00 AM PST | 106 | 10.4 | 83–223 |
| Nov 5, 4:00 AM PST | 106 | 10.4 | 83–223 |
| Nov 5, 3:00 AM PST | 106 | 10.4 | 83–223 |
| Nov 5, 2:00 AM PST | 106 | 10.4 | 83–223 |
| Nov 5, 1:00 AM PST | 106 | 10.4 | 83–223 |
| Nov 5, 12:00 AM PST | 107 | 10.5 | 83–223 |
| Nov 4, 11:00 PM PST | 107 | 10.5 | 87–207 |
| Nov 4, 10:00 PM PST | 107 | 10.5 | 87–207 |
| Nov 4, 9:00 PM PST | 108 | 10.5 | 87–207 |
| Nov 4, 8:00 PM PST | 109 | 10.5 | 87–207 |
| Nov 4, 7:00 PM PST | 110 | 10.5 | 87–207 |
| Nov 4, 6:00 PM PST | 111 | 10.5 | 87–207 |
| Nov 4, 5:00 PM PST | 113 | 10.5 | 87–207 |
| Nov 4, 4:00 PM PST | 114 | 10.6 | 87–207 |
| Nov 4, 3:00 PM PST | 117 | 10.6 | 87–207 |
| Nov 4, 2:00 PM PST | 119 | 10.6 | 87–207 |
| Nov 4, 1:00 PM PST | 121 | 10.7 | 87–207 |
| Nov 4, 12:00 PM PST | 121 | 10.7 | 87–207 |
| Nov 4, 11:00 AM PST | 121 | 10.7 | 87–207 |
| Nov 4, 10:00 AM PST | 121 | 10.7 | 87–207 |
| Nov 4, 9:00 AM PST | 121 | 10.7 | 87–207 |
| Nov 4, 8:00 AM PST | 121 | 10.7 | 87–207 |
| Nov 4, 7:00 AM PST | 121 | 10.7 | 87–207 |
| Nov 4, 6:00 AM PST | 121 | 10.7 | 87–207 |
| Nov 4, 5:00 AM PST | 121 | 10.7 | 87–207 |
| Nov 4, 4:00 AM PST | 121 | 10.7 | 87–207 |
| Nov 4, 3:00 AM PST | 121 | 10.7 | 87–207 |
| Nov 4, 2:00 AM PST | 121 | 10.7 | 87–207 |
| Nov 4, 1:00 AM PST | 121 | 10.7 | 87–207 |
| Nov 4, 12:00 AM PST | 122 | 10.7 | 87–207 |
| Nov 3, 11:00 PM PST | 122 | 10.7 | 62–187 |
| Nov 3, 10:00 PM PST | 121 | 10.7 | 62–187 |
| Nov 3, 9:00 PM PST | 121 | 10.7 | 62–187 |
| Nov 3, 8:00 PM PST | 121 | 10.7 | 62–187 |
| Nov 3, 7:00 PM PST | 121 | 10.7 | 62–187 |
| Nov 3, 6:00 PM PST | 120 | 10.7 | 62–187 |
| Nov 3, 5:00 PM PST | 120 | 10.7 | 62–187 |
| Nov 3, 4:00 PM PST | 121 | 10.7 | 62–187 |
| Nov 3, 3:00 PM PST | 121 | 10.7 | 62–187 |
| Nov 3, 2:00 PM PST | 121 | 10.7 | 62–187 |
| Nov 3, 1:00 PM PST | 122 | 10.7 | 62–187 |
| Nov 3, 12:00 PM PST | 122 | 10.7 | 62–187 |
| Nov 3, 11:00 AM PST | 122 | 10.7 | 62–187 |
| Nov 3, 10:00 AM PST | 122 | 10.7 | 62–187 |
| Nov 3, 9:00 AM PST | 121 | 10.7 | 62–187 |
| Nov 3, 8:00 AM PST | 122 | 10.7 | 62–187 |
| Nov 3, 7:00 AM PST | 122 | 10.7 | 62–187 |
| Nov 3, 6:00 AM PST | 123 | 10.7 | 62–187 |
| Nov 3, 5:00 AM PST | 123 | 10.7 | 62–187 |
| Nov 3, 4:00 AM PST | 123 | 10.7 | 62–187 |
| Nov 3, 3:00 AM PST | 123 | 10.7 | 62–187 |
| Nov 3, 2:00 AM PST | 123 | 10.7 | 62–187 |
| Nov 3, 1:00 AM PST | 123 | 10.7 | 62–187 |
| Nov 3, 12:00 AM PST | 122 | 10.7 | 62–187 |
| Nov 2, 11:00 PM PST | 121 | 10.7 | 60–186 |
| Nov 2, 10:00 PM PST | 121 | 10.7 | 60–186 |
| Nov 2, 9:00 PM PST | 121 | 10.7 | 60–186 |
| Nov 2, 8:00 PM PST | 120 | 10.7 | 60–186 |
| Nov 2, 7:00 PM PST | 119 | 10.6 | 60–186 |
| Nov 2, 6:00 PM PST | 117 | 10.6 | 60–186 |
| Nov 2, 5:00 PM PST | 114 | 10.6 | 60–186 |
| Nov 2, 4:00 PM PST | 107 | 10.5 | 60–186 |
| Nov 2, 3:00 PM PST | 97.4 | 10.3 | 60–186 |
| Nov 2, 2:00 PM PST | 88.2 | 10.2 | 60–186 |
| Nov 2, 1:00 PM PST | 84.1 | 10.1 | 60–186 |
| Nov 2, 12:00 PM PST | 83.5 | 10.1 | 60–186 |
| Nov 2, 11:00 AM PST | 83.5 | 10.1 | 60–186 |
| Nov 2, 10:00 AM PST | 83.5 | 10.1 | 60–186 |
| Nov 2, 9:00 AM PST | 83.5 | 10.1 | 60–186 |
| Nov 2, 8:00 AM PST | 84.1 | 10.1 | 60–186 |
| Nov 2, 7:00 AM PST | 84.1 | 10.1 | 60–186 |
| Nov 2, 6:00 AM PST | 84.1 | 10.1 | 60–186 |
| Nov 2, 5:00 AM PST | 84.1 | 10.1 | 60–186 |
| Nov 2, 4:00 AM PST | 84.1 | 10.1 | 60–186 |
| Nov 2, 3:00 AM PST | 84.1 | 10.1 | 60–186 |
| Nov 2, 2:00 AM PST | 83.5 | 10.1 | 60–186 |
| Nov 2, 1:00 AM PST | 83.5 | 10.1 | 60–186 |
| Nov 2, 12:00 AM PST | 83.5 | 10.1 | 60–186 |
| Nov 1, 11:00 PM PST | 83.5 | 10.1 | 65–225 |
| Nov 1, 10:00 PM PST | 83.5 | 10.1 | 65–225 |
| Nov 1, 9:00 PM PST | 83.5 | 10.1 | 65–225 |
| Nov 1, 8:00 PM PST | 83.5 | 10.1 | 65–225 |
| Nov 1, 7:00 PM PST | 84.1 | 10.1 | 65–225 |
| Nov 1, 6:00 PM PST | 84.7 | 10.1 | 65–225 |
| Nov 1, 5:00 PM PST | 84.7 | 10.1 | 65–225 |
| Nov 1, 4:00 PM PST | 85.2 | 10.1 | 65–225 |
| Nov 1, 3:00 PM PST | 85.2 | 10.1 | 65–225 |
| Nov 1, 2:00 PM PST | 85.2 | 10.1 | 65–225 |
| Nov 1, 1:00 PM PST | 85.2 | 10.1 | 65–225 |
| Nov 1, 12:00 PM PST | 85.2 | 10.1 | 65–225 |
| Nov 1, 11:00 AM PST | 85.8 | 10.1 | 65–225 |
| Nov 1, 10:00 AM PST | 85.8 | 10.1 | 65–225 |
| Nov 1, 9:00 AM PST | 85.8 | 10.1 | 65–225 |
| Nov 1, 8:00 AM PST | 85.8 | 10.1 | 65–225 |
| Nov 1, 7:00 AM PST | 86.4 | 10.1 | 65–225 |
| Nov 1, 6:00 AM PST | 86.4 | 10.1 | 65–225 |
| Nov 1, 5:00 AM PST | 86.4 | 10.1 | 65–225 |
| Nov 1, 4:00 AM PST | 86.4 | 10.1 | 65–225 |
| Nov 1, 3:00 AM PST | 86.4 | 10.1 | 65–225 |
| Nov 1, 2:00 AM PST | 87 | 10.1 | 65–225 |
| Nov 1, 1:00 AM PST | 87 | 10.1 | 65–225 |
| Nov 1, 1:00 AM PDT | 87 | 10.1 | 65–225 |
| Nov 1, 12:00 AM PDT | 87 | 10.1 | 65–225 |
| Oct 31, 11:00 PM PDT | 86.4 | 10.1 | 65–172 |
| Oct 31, 10:00 PM PDT | 86.4 | 10.1 | 65–172 |
| Oct 31, 9:00 PM PDT | 85.8 | 10.1 | 65–172 |
| Oct 31, 8:00 PM PDT | 86.4 | 10.1 | 65–172 |
| Oct 31, 7:00 PM PDT | 85.8 | 10.1 | 65–172 |
| Oct 31, 6:00 PM PDT | 86.4 | 10.1 | 65–172 |
| Oct 31, 5:00 PM PDT | 86.4 | 10.1 | 65–172 |
| Oct 31, 4:00 PM PDT | 87 | 10.1 | 65–172 |
| Oct 31, 3:00 PM PDT | 87 | 10.1 | 65–172 |
| Oct 31, 2:00 PM PDT | 87.6 | 10.2 | 65–172 |
| Oct 31, 1:00 PM PDT | 87.6 | 10.2 | 65–172 |
| Oct 31, 12:00 PM PDT | 88.2 | 10.2 | 65–172 |
| Oct 31, 11:00 AM PDT | 88.8 | 10.2 | 65–172 |
| Oct 31, 10:00 AM PDT | 89.4 | 10.2 | 65–172 |
| Oct 31, 9:00 AM PDT | 89.4 | 10.2 | 65–172 |
| Oct 31, 8:00 AM PDT | 89.4 | 10.2 | 65–172 |
| Oct 31, 7:00 AM PDT | 89.4 | 10.2 | 65–172 |
| Oct 31, 6:00 AM PDT | 90 | 10.2 | 65–172 |
| Oct 31, 5:00 AM PDT | 90 | 10.2 | 65–172 |
| Oct 31, 4:00 AM PDT | 90.6 | 10.2 | 65–172 |
| Oct 31, 3:00 AM PDT | 90.6 | 10.2 | 65–172 |
| Oct 31, 2:00 AM PDT | 90.6 | 10.2 | 65–172 |
| Oct 31, 1:00 AM PDT | 91.2 | 10.2 | 65–172 |
| Oct 31, 12:00 AM PDT | 91.8 | 10.2 | 65–172 |
| Oct 30, 11:00 PM PDT | 91.8 | 10.2 | 62–165 |
| Oct 30, 10:00 PM PDT | 92.4 | 10.2 | 62–165 |
| Oct 30, 9:00 PM PDT | 92.4 | 10.2 | 62–165 |
| Oct 30, 8:00 PM PDT | 92.4 | 10.2 | 62–165 |
| Oct 30, 7:00 PM PDT | 92.4 | 10.2 | 62–165 |
| Oct 30, 6:00 PM PDT | 92.4 | 10.2 | 62–165 |
| Oct 30, 5:00 PM PDT | 93 | 10.2 | 62–165 |
| Oct 30, 4:00 PM PDT | 93 | 10.2 | 62–165 |
| Oct 30, 3:00 PM PDT | 93 | 10.2 | 62–165 |
| Oct 30, 2:00 PM PDT | 93 | 10.2 | 62–165 |
| Oct 30, 1:00 PM PDT | 93 | 10.2 | 62–165 |
| Oct 30, 12:00 PM PDT | 93.6 | 10.3 | 62–165 |
| Oct 30, 11:00 AM PDT | 94.3 | 10.3 | 62–165 |
| Oct 30, 10:00 AM PDT | 94.3 | 10.3 | 62–165 |
| Oct 30, 9:00 AM PDT | 95.5 | 10.3 | 62–165 |
| Oct 30, 8:00 AM PDT | 96.1 | 10.3 | 62–165 |
| Oct 30, 7:00 AM PDT | 96.8 | 10.3 | 62–165 |
| Oct 30, 6:00 AM PDT | 98 | 10.3 | 62–165 |
| Oct 30, 5:00 AM PDT | 99.3 | 10.3 | 62–165 |
| Oct 30, 4:00 AM PDT | 101 | 10.4 | 62–165 |
| Oct 30, 3:00 AM PDT | 104 | 10.4 | 62–165 |
| Oct 30, 2:00 AM PDT | 107 | 10.5 | 62–165 |
| Oct 30, 1:00 AM PDT | 110 | 10.5 | 62–165 |
| Oct 30, 12:00 AM PDT | 112 | 10.5 | 62–165 |
| Oct 29, 11:00 PM PDT | 113 | 10.6 | 66–167 |
| Oct 29, 10:00 PM PDT | 115 | 10.6 | 66–167 |
| Oct 29, 9:00 PM PDT | 117 | 10.6 | 66–167 |
Water temperature, last 7 days: 169 readings from Oct 29, 8:30 PM PDT to Nov 5, 7:30 PM PST; ranging 50.2 to 54.3 °F; latest 54 °F.
USGS provisional data may be revised. Source: USGS instantaneous values.
| Time | Water temperature (°F) |
|---|---|
| Nov 5, 7:30 PM PST | 54 |
| Nov 5, 6:30 PM PST | 54 |
| Nov 5, 5:30 PM PST | 54.1 |
| Nov 5, 4:30 PM PST | 54.1 |
| Nov 5, 3:30 PM PST | 54.1 |
| Nov 5, 2:30 PM PST | 54 |
| Nov 5, 1:30 PM PST | 54 |
| Nov 5, 12:30 PM PST | 53.8 |
| Nov 5, 11:30 AM PST | 53.6 |
| Nov 5, 10:30 AM PST | 53.6 |
| Nov 5, 9:30 AM PST | 53.4 |
| Nov 5, 8:30 AM PST | 53.4 |
| Nov 5, 7:30 AM PST | 53.4 |
| Nov 5, 6:30 AM PST | 53.4 |
| Nov 5, 5:30 AM PST | 53.4 |
| Nov 5, 4:30 AM PST | 53.6 |
| Nov 5, 3:30 AM PST | 53.6 |
| Nov 5, 2:30 AM PST | 53.8 |
| Nov 5, 1:30 AM PST | 53.8 |
| Nov 5, 12:30 AM PST | 53.8 |
| Nov 4, 11:30 PM PST | 53.8 |
| Nov 4, 10:30 PM PST | 53.8 |
| Nov 4, 9:30 PM PST | 53.8 |
| Nov 4, 8:30 PM PST | 53.6 |
| Nov 4, 7:30 PM PST | 53.6 |
| Nov 4, 6:30 PM PST | 53.8 |
| Nov 4, 5:30 PM PST | 53.8 |
| Nov 4, 4:30 PM PST | 53.8 |
| Nov 4, 3:30 PM PST | 54 |
| Nov 4, 2:30 PM PST | 53.8 |
| Nov 4, 1:30 PM PST | 53.6 |
| Nov 4, 12:30 PM PST | 53.4 |
| Nov 4, 11:30 AM PST | 53.2 |
| Nov 4, 10:30 AM PST | 53.1 |
| Nov 4, 9:30 AM PST | 53.1 |
| Nov 4, 8:30 AM PST | 53.1 |
| Nov 4, 7:30 AM PST | 53.2 |
| Nov 4, 6:30 AM PST | 53.2 |
| Nov 4, 5:30 AM PST | 53.2 |
| Nov 4, 4:30 AM PST | 53.4 |
| Nov 4, 3:30 AM PST | 53.4 |
| Nov 4, 2:30 AM PST | 53.8 |
| Nov 4, 1:30 AM PST | 54 |
| Nov 4, 12:30 AM PST | 54.1 |
| Nov 3, 11:30 PM PST | 54.3 |
| Nov 3, 10:30 PM PST | 54.3 |
| Nov 3, 9:30 PM PST | 54.3 |
| Nov 3, 8:30 PM PST | 54.1 |
| Nov 3, 7:30 PM PST | 54.1 |
| Nov 3, 6:30 PM PST | 54.1 |
| Nov 3, 5:30 PM PST | 54.1 |
| Nov 3, 4:30 PM PST | 54.3 |
| Nov 3, 3:30 PM PST | 54.3 |
| Nov 3, 2:30 PM PST | 54.1 |
| Nov 3, 1:30 PM PST | 54 |
| Nov 3, 12:30 PM PST | 53.8 |
| Nov 3, 11:30 AM PST | 53.4 |
| Nov 3, 10:30 AM PST | 53.2 |
| Nov 3, 9:30 AM PST | 53.1 |
| Nov 3, 8:30 AM PST | 52.9 |
| Nov 3, 7:30 AM PST | 52.9 |
| Nov 3, 6:30 AM PST | 52.9 |
| Nov 3, 5:30 AM PST | 52.7 |
| Nov 3, 4:30 AM PST | 52.7 |
| Nov 3, 3:30 AM PST | 52.9 |
| Nov 3, 2:30 AM PST | 52.9 |
| Nov 3, 1:30 AM PST | 53.1 |
| Nov 3, 12:30 AM PST | 53.2 |
| Nov 2, 11:30 PM PST | 53.2 |
| Nov 2, 10:30 PM PST | 53.2 |
| Nov 2, 9:30 PM PST | 53.2 |
| Nov 2, 8:30 PM PST | 53.1 |
| Nov 2, 7:30 PM PST | 52.9 |
| Nov 2, 6:30 PM PST | 52.7 |
| Nov 2, 5:30 PM PST | 52.7 |
| Nov 2, 4:30 PM PST | 52.5 |
| Nov 2, 3:30 PM PST | 52.2 |
| Nov 2, 2:30 PM PST | 51.8 |
| Nov 2, 1:30 PM PST | 51.4 |
| Nov 2, 12:30 PM PST | 51.3 |
| Nov 2, 11:30 AM PST | 50.9 |
| Nov 2, 10:30 AM PST | 50.7 |
| Nov 2, 9:30 AM PST | 50.5 |
| Nov 2, 8:30 AM PST | 50.5 |
| Nov 2, 7:30 AM PST | 50.5 |
| Nov 2, 6:30 AM PST | 50.7 |
| Nov 2, 5:30 AM PST | 50.7 |
| Nov 2, 4:30 AM PST | 50.7 |
| Nov 2, 3:30 AM PST | 50.7 |
| Nov 2, 2:30 AM PST | 50.7 |
| Nov 2, 1:30 AM PST | 50.7 |
| Nov 2, 12:30 AM PST | 50.7 |
| Nov 1, 11:30 PM PST | 50.7 |
| Nov 1, 10:30 PM PST | 50.5 |
| Nov 1, 9:30 PM PST | 50.5 |
| Nov 1, 8:30 PM PST | 50.5 |
| Nov 1, 7:30 PM PST | 50.5 |
| Nov 1, 6:30 PM PST | 50.7 |
| Nov 1, 5:30 PM PST | 50.7 |
| Nov 1, 4:30 PM PST | 50.7 |
| Nov 1, 3:30 PM PST | 50.5 |
| Nov 1, 2:30 PM PST | 50.5 |
| Nov 1, 1:30 PM PST | 50.5 |
| Nov 1, 12:30 PM PST | 50.4 |
| Nov 1, 11:30 AM PST | 50.4 |
| Nov 1, 10:30 AM PST | 50.2 |
| Nov 1, 9:30 AM PST | 50.2 |
| Nov 1, 8:30 AM PST | 50.2 |
| Nov 1, 7:30 AM PST | 50.2 |
| Nov 1, 6:30 AM PST | 50.4 |
| Nov 1, 5:30 AM PST | 50.5 |
| Nov 1, 4:30 AM PST | 50.7 |
| Nov 1, 3:30 AM PST | 50.9 |
| Nov 1, 2:30 AM PST | 50.9 |
| Nov 1, 1:30 AM PST | 50.9 |
| Nov 1, 1:30 AM PDT | 51.1 |
| Nov 1, 12:30 AM PDT | 51.1 |
| Oct 31, 11:30 PM PDT | 51.1 |
| Oct 31, 10:30 PM PDT | 51.3 |
| Oct 31, 9:30 PM PDT | 51.4 |
| Oct 31, 8:30 PM PDT | 51.6 |
| Oct 31, 7:30 PM PDT | 51.8 |
| Oct 31, 6:30 PM PDT | 52 |
| Oct 31, 5:30 PM PDT | 52 |
| Oct 31, 4:30 PM PDT | 52.2 |
| Oct 31, 3:30 PM PDT | 51.8 |
| Oct 31, 2:30 PM PDT | 51.6 |
| Oct 31, 1:30 PM PDT | 51.4 |
| Oct 31, 12:30 PM PDT | 51.1 |
| Oct 31, 11:30 AM PDT | 51.1 |
| Oct 31, 10:30 AM PDT | 50.9 |
| Oct 31, 9:30 AM PDT | 50.9 |
| Oct 31, 8:30 AM PDT | 51.1 |
| Oct 31, 7:30 AM PDT | 51.3 |
| Oct 31, 6:30 AM PDT | 51.6 |
| Oct 31, 5:30 AM PDT | 51.8 |
| Oct 31, 4:30 AM PDT | 52 |
| Oct 31, 3:30 AM PDT | 52.2 |
| Oct 31, 2:30 AM PDT | 52.3 |
| Oct 31, 1:30 AM PDT | 52.3 |
| Oct 31, 12:30 AM PDT | 52.5 |
| Oct 30, 11:30 PM PDT | 52.7 |
| Oct 30, 10:30 PM PDT | 52.9 |
| Oct 30, 9:30 PM PDT | 53.1 |
| Oct 30, 8:30 PM PDT | 53.2 |
| Oct 30, 7:30 PM PDT | 53.6 |
| Oct 30, 6:30 PM PDT | 53.6 |
| Oct 30, 5:30 PM PDT | 53.8 |
| Oct 30, 4:30 PM PDT | 53.6 |
| Oct 30, 3:30 PM PDT | 53.6 |
| Oct 30, 2:30 PM PDT | 53.4 |
| Oct 30, 1:30 PM PDT | 53.2 |
| Oct 30, 12:30 PM PDT | 53.1 |
| Oct 30, 11:30 AM PDT | 52.9 |
| Oct 30, 10:30 AM PDT | 52.7 |
| Oct 30, 9:30 AM PDT | 52.7 |
| Oct 30, 8:30 AM PDT | 52.7 |
| Oct 30, 7:30 AM PDT | 52.9 |
| Oct 30, 6:30 AM PDT | 52.9 |
| Oct 30, 5:30 AM PDT | 53.1 |
| Oct 30, 4:30 AM PDT | 53.1 |
| Oct 30, 3:30 AM PDT | 53.2 |
| Oct 30, 2:30 AM PDT | 53.2 |
| Oct 30, 1:30 AM PDT | 53.2 |
| Oct 30, 12:30 AM PDT | 53.2 |
| Oct 29, 11:30 PM PDT | 53.2 |
| Oct 29, 10:30 PM PDT | 53.4 |
| Oct 29, 9:30 PM PDT | 53.4 |
| Oct 29, 8:30 PM PDT | 53.6 |
Map of USGS gauge 14203500 and the river around it
Where TUALATIN RIVER NEAR DILLEY, OR sits, with 4 other gauges on the same river and our water's map point.
Normal for Nov 5: 83–223 ft³/s (middle half of 86 years of record). Now: 108 ft³/s, normal.
Normal for this date. 108 ft³/s is between the 25th and 75th percentiles of daily mean flow for Nov 5 at this gauge over 86 years of record (1940–2025): 10th 35, 25th 83, median 129, 75th 223, 90th 393 ft³/s.
Daily means on record for Nov 5: lowest 5.7 ft³/s, highest 945 ft³/s.
Classes as USGS labels them (hyswap: flow categories (WDFN_stats schema) (U.S. Geological Survey) ); percentiles from the USGS daily statistics (U.S. Geological Survey) (approved daily means; the reading is provisional and instantaneous).
Steady over 24 hours (−0.9% discharge). Rising or falling means a change of more than 10% in discharge (or 0.2 ft of gauge height) over 24 hours; our rule of thumb, not a USGS class.
Under ODFW's 68°F line. Water 54°F now; the highest in the last 24 hours was 54.1°F. That is under the 68°F at which ODFW says trout, steelhead and salmon “start to feel stressed”. “Fish early in the morning when water temperatures are cooler and fish are more active.”
5 tips for fishing in hot water (Oregon Department of Fish and Wildlife)Species the agency lists for Tualatin River: Chinook Salmon, Coho Salmon.
Source: Salmon and steelhead sport catch waterbodies (2025 expanded catch by month and waterbody code) (Oregon Department of Fish and Wildlife).
Below NWS action stage. The National Weather Service reports this gauge below its action stage. That is not a statement that wading is safe.
Flood categories: action stage, minor, moderate and major flooding (National Weather Service)Cold water. Water 54°F. NWS: “Cold shock can be just as severe and dangerous from water temperatures of 50-60°F (10-15°C) as it is from water at 35°F (2°C).” “Always wear a life jacket in and around the water.”
Cold Water Hazards and Safety (National Weather Service)Turn Around Don't Drown. “A mere 6 inches of fast-moving flood water can knock over an adult.” No flow number makes a crossing safe; if in doubt, stay out.
Turn Around Don't Drown (National Weather Service)Dissolved oxygen 10.1 mg/L at Nov 5, 7:30 PM PST; 7-day range 9.9–10.5 mg/L
Enough oxygen for coldwater fish: 10.1 mg/L meets the 6.5 mg/L EPA sets for coldwater fish (other life stages; eggs and fry need a 8 mg/L minimum).
Quality Criteria for Water 1986 (“Gold Book”): dissolved oxygen, Table 1; pH (U.S. Environmental Protection Agency)pH 7.5 at Nov 5, 7:30 PM PST; 7-day range 7.4–7.5
Within EPA's freshwater range: pH 7.5 is within the 6.5–9 range EPA gives for freshwater aquatic life.
Quality Criteria for Water 1986 (“Gold Book”): dissolved oxygen, Table 1; pH (U.S. Environmental Protection Agency)Turbidity 2.5 FNU at Nov 5, 7:30 PM PST; 7-day range 2.1–5.5 FNU
Water clarity: Turbidity measures the relative clarity of water: higher means murkier. No agency publishes a fishing threshold for it; compare with this gauge's own recent readings.
Turbidity and Water (U.S. Geological Survey)Specific conductance 79 µS/cm at Nov 5, 7:30 PM PST; 7-day range 75–79 µS/cm
Dissolved ions: Specific conductance rises with the ions dissolved in the water. No fishing threshold is published for it; compare with this gauge's own recent readings.
Conductivity (Electrical Conductance) and Water (U.S. Geological Survey)Guidance from the readings above and the published thresholds named with each line; not a fishing forecast, a safety guarantee or a statement about access. Local rules and closures come first.
Below NWS action stage. The National Weather Service reports this gauge below its action stage. That is not a statement that wading is safe.
NWS observed 10.5 ft stage, 107 ft³/s at Nov 5, 7:30 PM PST (NWS gauge DLLO3; its stage datum can differ from the USGS gauge height).
NWS river forecast forecast issued Nov 5, 3:12 PM PST. Highest point: 11.7 ft, 202 ft³/s on Nov 14, 10:00 PM PST (Below NWS action stage).
| Day | Stage | Flow |
|---|---|---|
| Thu, Nov 5 | 10.4 ft | 105 ft³/s |
| Fri, Nov 6 | 10.4 ft | 105 ft³/s |
| Sat, Nov 7 | 10.5 ft | 107 ft³/s |
| Sun, Nov 8 | 10.6 ft | 115 ft³/s |
| Mon, Nov 9 | 10.6 ft | 117 ft³/s |
| Tue, Nov 10 | 11.2 ft | 158 ft³/s |
| Wed, Nov 11 | 11.4 ft | 174 ft³/s |
| Thu, Nov 12 | 11.4 ft | 174 ft³/s |
| Fri, Nov 13 | 11.6 ft | 190 ft³/s |
| Sat, Nov 14 | 11.7 ft | 202 ft³/s |
Open the NWS gauge page · What the categories mean (National Weather Service)
Checked Nov 5, 8:10 PM PST; readings refresh at most every 15 minutes and statistics daily. Provisional USGS data can be revised. Conditions change: re-check before you go. This is general guidance, not a fishing forecast, a safety guarantee or a statement about access.