BOONE CREEK NEAR MC HENRY, IL
USGS 05549000 · Illinois · reports discharge (live), gauge height
Reading BOONE CREEK NEAR MC HENRY, IL…
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USGS 05549000 · Illinois · reports discharge (live), gauge height
What the agencies suggest
Carry a pocket thermometer to monitor water temperatureNational Park Service
General guidance from the readings and the published lines named above, not a fishing forecast. Local rules and closures come first.
Reading Nov 5, 5:45 PM CST · provisional USGS data
Normal for Nov 5 Steady · 24 h Below NWS action stage
Discharge, last 7 days: 168 readings from Oct 29, 7:45 PM CDT to Nov 5, 5:45 PM CST; ranging 8.1 to 15.3 ft³/s; latest 13.8 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, 5:45 PM CST | 13.8 | 1.17 | 7.5–16 |
| Nov 5, 4:45 PM CST | 13.8 | 1.17 | 7.5–16 |
| Nov 5, 3:45 PM CST | 14.2 | 1.18 | 7.5–16 |
| Nov 5, 2:45 PM CST | 13.8 | 1.17 | 7.5–16 |
| Nov 5, 1:45 PM CST | 13.8 | 1.17 | 7.5–16 |
| Nov 5, 12:45 PM CST | 13.8 | 1.17 | 7.5–16 |
| Nov 5, 11:45 AM CST | 14.2 | 1.18 | 7.5–16 |
| Nov 5, 10:45 AM CST | 14.2 | 1.18 | 7.5–16 |
| Nov 5, 9:45 AM CST | 14.2 | 1.18 | 7.5–16 |
| Nov 5, 8:45 AM CST | 13.8 | 1.17 | 7.5–16 |
| Nov 5, 7:45 AM CST | 13.8 | 1.17 | 7.5–16 |
| Nov 5, 6:45 AM CST | 13 | 1.15 | 7.5–16 |
| Nov 5, 5:45 AM CST | 13.4 | 1.16 | 7.5–16 |
| Nov 5, 4:45 AM CST | 13.8 | 1.17 | 7.5–16 |
| Nov 5, 3:45 AM CST | 13.4 | 1.16 | 7.5–16 |
| Nov 5, 2:45 AM CST | 13.8 | 1.17 | 7.5–16 |
| Nov 5, 1:45 AM CST | 14.2 | 1.18 | 7.5–16 |
| Nov 5, 12:45 AM CST | 14.2 | 1.18 | 7.5–16 |
| Nov 4, 11:45 PM CST | 14.2 | 1.18 | 7.3–16 |
| Nov 4, 10:45 PM CST | 14.9 | 1.2 | 7.3–16 |
| Nov 4, 9:45 PM CST | 14.9 | 1.2 | 7.3–16 |
| Nov 4, 8:45 PM CST | 14.9 | 1.2 | 7.3–16 |
| Nov 4, 7:45 PM CST | 14.9 | 1.2 | 7.3–16 |
| Nov 4, 6:45 PM CST | 15.3 | 1.21 | 7.3–16 |
| Nov 4, 5:45 PM CST | 14.9 | 1.2 | 7.3–16 |
| Nov 4, 4:45 PM CST | 14.9 | 1.2 | 7.3–16 |
| Nov 4, 3:45 PM CST | 14.9 | 1.2 | 7.3–16 |
| Nov 4, 2:45 PM CST | 14.5 | 1.19 | 7.3–16 |
| Nov 4, 1:45 PM CST | 14.5 | 1.19 | 7.3–16 |
| Nov 4, 12:45 PM CST | 14.5 | 1.19 | 7.3–16 |
| Nov 4, 11:45 AM CST | 14.5 | 1.19 | 7.3–16 |
| Nov 4, 10:45 AM CST | 14.9 | 1.2 | 7.3–16 |
| Nov 4, 9:45 AM CST | 14.9 | 1.2 | 7.3–16 |
| Nov 4, 8:45 AM CST | 14.9 | 1.2 | 7.3–16 |
| Nov 4, 7:45 AM CST | 14.9 | 1.2 | 7.3–16 |
| Nov 4, 6:45 AM CST | 13.8 | 1.17 | 7.3–16 |
| Nov 4, 5:45 AM CST | 13.4 | 1.16 | 7.3–16 |
| Nov 4, 4:45 AM CST | 13.8 | 1.17 | 7.3–16 |
| Nov 4, 3:45 AM CST | 14.2 | 1.18 | 7.3–16 |
| Nov 4, 2:45 AM CST | 14.2 | 1.18 | 7.3–16 |
| Nov 4, 1:45 AM CST | 13.4 | 1.16 | 7.3–16 |
| Nov 4, 12:45 AM CST | 13 | 1.15 | 7.3–16 |
| Nov 3, 11:45 PM CST | 13.8 | 1.17 | 7.4–17 |
| Nov 3, 10:45 PM CST | 13.8 | 1.17 | 7.4–17 |
| Nov 3, 9:45 PM CST | 13.4 | 1.16 | 7.4–17 |
| Nov 3, 8:45 PM CST | 13 | 1.15 | 7.4–17 |
| Nov 3, 7:45 PM CST | 12.7 | 1.14 | 7.4–17 |
| Nov 3, 6:45 PM CST | 12.3 | 1.13 | 7.4–17 |
| Nov 3, 5:45 PM CST | 12 | 1.12 | 7.4–17 |
| Nov 3, 4:45 PM CST | 12 | 1.12 | 7.4–17 |
| Nov 3, 3:45 PM CST | 11.6 | 1.11 | 7.4–17 |
| Nov 3, 2:45 PM CST | 11.3 | 1.1 | 7.4–17 |
| Nov 3, 1:45 PM CST | 10.9 | 1.09 | 7.4–17 |
| Nov 3, 12:45 PM CST | 10.5 | 1.08 | 7.4–17 |
| Nov 3, 11:45 AM CST | 10.5 | 1.08 | 7.4–17 |
| Nov 3, 10:45 AM CST | 10.1 | 1.07 | 7.4–17 |
| Nov 3, 9:45 AM CST | 10.5 | 1.08 | 7.4–17 |
| Nov 3, 8:45 AM CST | 10.5 | 1.08 | 7.4–17 |
| Nov 3, 7:45 AM CST | 10.1 | 1.07 | 7.4–17 |
| Nov 3, 6:45 AM CST | 9.43 | 1.05 | 7.4–17 |
| Nov 3, 5:45 AM CST | 9.78 | 1.06 | 7.4–17 |
| Nov 3, 4:45 AM CST | 9.43 | 1.05 | 7.4–17 |
| Nov 3, 3:45 AM CST | 9.43 | 1.05 | 7.4–17 |
| Nov 3, 2:45 AM CST | 9.43 | 1.05 | 7.4–17 |
| Nov 3, 1:45 AM CST | 9.78 | 1.06 | 7.4–17 |
| Nov 3, 12:45 AM CST | 9.78 | 1.06 | 7.4–17 |
| Nov 2, 11:45 PM CST | 9.78 | 1.06 | 7.5–13 |
| Nov 2, 10:45 PM CST | 10.1 | 1.07 | 7.5–13 |
| Nov 2, 9:45 PM CST | 9.78 | 1.06 | 7.5–13 |
| Nov 2, 8:45 PM CST | 9.78 | 1.06 | 7.5–13 |
| Nov 2, 7:45 PM CST | 10.1 | 1.07 | 7.5–13 |
| Nov 2, 6:45 PM CST | 9.78 | 1.06 | 7.5–13 |
| Nov 2, 5:45 PM CST | 9.78 | 1.06 | 7.5–13 |
| Nov 2, 4:45 PM CST | 9.78 | 1.06 | 7.5–13 |
| Nov 2, 3:45 PM CST | 9.78 | 1.06 | 7.5–13 |
| Nov 2, 2:45 PM CST | 9.78 | 1.06 | 7.5–13 |
| Nov 2, 1:45 PM CST | 9.78 | 1.06 | 7.5–13 |
| Nov 2, 12:45 PM CST | 9.78 | 1.06 | 7.5–13 |
| Nov 2, 11:45 AM CST | 9.78 | 1.06 | 7.5–13 |
| Nov 2, 10:45 AM CST | 9.78 | 1.06 | 7.5–13 |
| Nov 2, 9:45 AM CST | 9.43 | 1.05 | 7.5–13 |
| Nov 2, 8:45 AM CST | 9.43 | 1.05 | 7.5–13 |
| Nov 2, 7:45 AM CST | 9.43 | 1.05 | 7.5–13 |
| Nov 2, 6:45 AM CST | 8.42 | 1.02 | 7.5–13 |
| Nov 2, 5:45 AM CST | 8.1 | 1.01 | 7.5–13 |
| Nov 2, 4:45 AM CST | 8.42 | 1.02 | 7.5–13 |
| Nov 2, 3:45 AM CST | 8.42 | 1.02 | 7.5–13 |
| Nov 2, 2:45 AM CST | 8.75 | 1.03 | 7.5–13 |
| Nov 2, 1:45 AM CST | 9.09 | 1.04 | 7.5–13 |
| Nov 2, 12:45 AM CST | 9.09 | 1.04 | 7.5–13 |
| Nov 1, 11:45 PM CST | 9.43 | 1.05 | 7.3–14 |
| Nov 1, 10:45 PM CST | 9.78 | 1.06 | 7.3–14 |
| Nov 1, 9:45 PM CST | 9.43 | 1.05 | 7.3–14 |
| Nov 1, 8:45 PM CST | 9.78 | 1.06 | 7.3–14 |
| Nov 1, 7:45 PM CST | 9.78 | 1.06 | 7.3–14 |
| Nov 1, 6:45 PM CST | 10.1 | 1.07 | 7.3–14 |
| Nov 1, 5:45 PM CST | 9.78 | 1.06 | 7.3–14 |
| Nov 1, 4:45 PM CST | 9.78 | 1.06 | 7.3–14 |
| Nov 1, 3:45 PM CST | 9.78 | 1.06 | 7.3–14 |
| Nov 1, 2:45 PM CST | 9.43 | 1.05 | 7.3–14 |
| Nov 1, 1:45 PM CST | 9.43 | 1.05 | 7.3–14 |
| Nov 1, 12:45 PM CST | 9.43 | 1.05 | 7.3–14 |
| Nov 1, 11:45 AM CST | 9.09 | 1.04 | 7.3–14 |
| Nov 1, 10:45 AM CST | 9.43 | 1.05 | 7.3–14 |
| Nov 1, 9:45 AM CST | 9.09 | 1.04 | 7.3–14 |
| Nov 1, 8:45 AM CST | 9.09 | 1.04 | 7.3–14 |
| Nov 1, 7:45 AM CST | 9.09 | 1.04 | 7.3–14 |
| Nov 1, 6:45 AM CST | 9.09 | 1.04 | 7.3–14 |
| Nov 1, 5:45 AM CST | 8.75 | 1.03 | 7.3–14 |
| Nov 1, 4:45 AM CST | 8.42 | 1.02 | 7.3–14 |
| Nov 1, 3:45 AM CST | 8.1 | 1.01 | 7.3–14 |
| Nov 1, 2:45 AM CST | 9.09 | 1.04 | 7.3–14 |
| Nov 1, 1:45 AM CST | 9.43 | 1.05 | 7.3–14 |
| Nov 1, 1:45 AM CDT | 9.09 | 1.04 | 7.3–14 |
| Nov 1, 12:45 AM CDT | 8.75 | 1.03 | 7–14 |
| Oct 31, 11:45 PM CDT | 9.09 | 1.04 | 7–14 |
| Oct 31, 10:45 PM CDT | 9.09 | 1.04 | 7–14 |
| Oct 31, 9:45 PM CDT | 8.1 | 1.01 | 7–14 |
| Oct 31, 8:45 PM CDT | 9.43 | 1.05 | 7–14 |
| Oct 31, 7:45 PM CDT | 9.43 | 1.05 | 7–14 |
| Oct 31, 6:45 PM CDT | 9.43 | 1.05 | 7–14 |
| Oct 31, 5:45 PM CDT | 9.43 | 1.05 | 7–14 |
| Oct 31, 4:45 PM CDT | 9.43 | 1.05 | 7–14 |
| Oct 31, 3:45 PM CDT | 9.09 | 1.04 | 7–14 |
| Oct 31, 2:45 PM CDT | 9.09 | 1.04 | 7–14 |
| Oct 31, 1:45 PM CDT | 9.09 | 1.04 | 7–14 |
| Oct 31, 12:45 PM CDT | 9.09 | 1.04 | 7–14 |
| Oct 31, 11:45 AM CDT | 9.09 | 1.04 | 7–14 |
| Oct 31, 10:45 AM CDT | 9.09 | 1.04 | 7–14 |
| Oct 31, 9:45 AM CDT | 12.7 | 1.14 | 7–14 |
| Oct 31, 8:45 AM CDT | 8.75 | 1.03 | 7–14 |
| Oct 31, 7:45 AM CDT | 8.1 | 1.01 | 7–14 |
| Oct 31, 6:45 AM CDT | 8.1 | 1.01 | 7–14 |
| Oct 31, 5:45 AM CDT | 9.09 | 1.04 | 7–14 |
| Oct 31, 4:45 AM CDT | 8.75 | 1.03 | 7–14 |
| Oct 31, 3:45 AM CDT | 8.75 | 1.03 | 7–14 |
| Oct 31, 2:45 AM CDT | 8.42 | 1.02 | 7–14 |
| Oct 31, 1:45 AM CDT | 8.42 | 1.02 | 7–14 |
| Oct 31, 12:45 AM CDT | 8.42 | 1.02 | 7–12 |
| Oct 30, 11:45 PM CDT | 8.1 | 1.01 | 7–12 |
| Oct 30, 10:45 PM CDT | 8.42 | 1.02 | 7–12 |
| Oct 30, 9:45 PM CDT | 8.42 | 1.02 | 7–12 |
| Oct 30, 8:45 PM CDT | 9.43 | 1.05 | 7–12 |
| Oct 30, 7:45 PM CDT | 9.78 | 1.06 | 7–12 |
| Oct 30, 6:45 PM CDT | 9.78 | 1.06 | 7–12 |
| Oct 30, 5:45 PM CDT | 9.78 | 1.06 | 7–12 |
| Oct 30, 4:45 PM CDT | 10.1 | 1.07 | 7–12 |
| Oct 30, 3:45 PM CDT | 10.1 | 1.07 | 7–12 |
| Oct 30, 2:45 PM CDT | 10.1 | 1.07 | 7–12 |
| Oct 30, 1:45 PM CDT | 10.1 | 1.07 | 7–12 |
| Oct 30, 12:45 PM CDT | 9.78 | 1.06 | 7–12 |
| Oct 30, 11:45 AM CDT | 9.78 | 1.06 | 7–12 |
| Oct 30, 10:45 AM CDT | 9.78 | 1.06 | 7–12 |
| Oct 30, 9:45 AM CDT | 9.43 | 1.05 | 7–12 |
| Oct 30, 8:45 AM CDT | 9.43 | 1.05 | 7–12 |
| Oct 30, 7:45 AM CDT | 9.43 | 1.05 | 7–12 |
| Oct 30, 6:45 AM CDT | 9.09 | 1.04 | 7–12 |
| Oct 30, 5:45 AM CDT | 9.43 | 1.05 | 7–12 |
| Oct 30, 4:45 AM CDT | 9.09 | 1.04 | 7–12 |
| Oct 30, 3:45 AM CDT | 8.42 | 1.02 | 7–12 |
| Oct 30, 2:45 AM CDT | 9.09 | 1.04 | 7–12 |
| Oct 30, 1:45 AM CDT | 9.78 | 1.06 | 7–12 |
| Oct 30, 12:45 AM CDT | 9.78 | 1.06 | 6.9–12 |
| Oct 29, 11:45 PM CDT | 9.43 | 1.05 | 6.9–12 |
| Oct 29, 10:45 PM CDT | 9.78 | 1.06 | 6.9–12 |
| Oct 29, 9:45 PM CDT | 9.43 | 1.05 | 6.9–12 |
| Oct 29, 8:45 PM CDT | 9.43 | 1.05 | 6.9–12 |
| Oct 29, 7:45 PM CDT | 9.78 | 1.06 | 6.9–12 |
Map of USGS gauge 05549000 and the river around it
Where BOONE CREEK NEAR MC HENRY, IL sits.
No current water-temperature reading at this gauge, so no temperature guidance is given. Take a stream thermometer. Illinois DNR publishes no water-temperature line for trout anglers that we found. The lines below are the National Park Service's, federal guidance, not a Illinois rule: 68°F.
Species list not on file for this gauge. Check the Illinois Department of Natural Resources: Illinois fish stocking · Illinois Fishing Information 2026 (regulations).
Normal for Nov 5: 7.5–16 ft³/s (middle half of 47 years of record). Now: 13.8 ft³/s, normal.
Normal for this date. 13.8 ft³/s is between the 25th and 75th percentiles of daily mean flow for Nov 5 at this gauge over 47 years of record (1949–2026): 10th 5.8, 25th 7.5, median 10, 75th 16, 90th 23 ft³/s.
Daily means on record for Nov 5: lowest 3.9 ft³/s, highest 39.2 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 (−7.4% 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.
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)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)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 1.17 ft stage, 14 ft³/s at Nov 5, 5:45 PM CST (NWS gauge MBNI2; its stage datum can differ from the USGS gauge height).
Forecasts are not available. Only observed stages are available for this point.
Open the NWS gauge page · What the categories mean (National Weather Service)
Checked Nov 5, 6:38 PM CST; 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.