CHICAGO SANITARY AND SHIP CANAL AT ROMEOVILLE, IL
USGS 05536995 · Illinois · reports gauge height, water temperature, specific conductance
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USGS 05536995 · Illinois · reports gauge height, water temperature, specific conductance
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, 6:00 PM CST · provisional USGS data
No flow here now. USGS stopped publishing discharge at this gauge on Sep 30, 2005; it still reports what is shown. Flow on the same river: CHICAGO SANITARY AND SHIP CANAL NR LEMONT, IL (USGS 05536890, 6.1 miles away).
Water temperature, last 7 days: 184 readings from Oct 29, 7:40 PM CDT to Nov 5, 6:00 PM CST; ranging 64 to 65.1 °F; latest 64.2 °F.
USGS provisional data may be revised. Source: USGS instantaneous values.
| Time | Water temperature (°F) |
|---|---|
| Nov 5, 6:00 PM CST | 64.2 |
| Nov 5, 5:05 PM CST | 64.4 |
| Nov 5, 4:10 PM CST | 64.4 |
| Nov 5, 3:15 PM CST | 64.2 |
| Nov 5, 2:20 PM CST | 64.2 |
| Nov 5, 1:25 PM CST | 64.2 |
| Nov 5, 12:30 PM CST | 64.2 |
| Nov 5, 11:35 AM CST | 64.2 |
| Nov 5, 10:40 AM CST | 64 |
| Nov 5, 9:45 AM CST | 64.2 |
| Nov 5, 8:50 AM CST | 64.6 |
| Nov 5, 7:55 AM CST | 64.2 |
| Nov 5, 7:00 AM CST | 64.4 |
| Nov 5, 6:05 AM CST | 64.2 |
| Nov 5, 5:10 AM CST | 64.2 |
| Nov 5, 4:15 AM CST | 64.2 |
| Nov 5, 3:20 AM CST | 64.2 |
| Nov 5, 2:25 AM CST | 64.2 |
| Nov 5, 1:30 AM CST | 64.2 |
| Nov 5, 12:35 AM CST | 64.2 |
| Nov 4, 11:40 PM CST | 64.2 |
| Nov 4, 10:45 PM CST | 64.4 |
| Nov 4, 9:50 PM CST | 64.2 |
| Nov 4, 8:55 PM CST | 64.4 |
| Nov 4, 8:00 PM CST | 64.6 |
| Nov 4, 7:05 PM CST | 64.4 |
| Nov 4, 6:10 PM CST | 64.6 |
| Nov 4, 5:15 PM CST | 64.8 |
| Nov 4, 4:20 PM CST | 64.8 |
| Nov 4, 3:25 PM CST | 64.6 |
| Nov 4, 2:30 PM CST | 64.8 |
| Nov 4, 1:35 PM CST | 64.9 |
| Nov 4, 12:40 PM CST | 64.8 |
| Nov 4, 11:45 AM CST | 64.9 |
| Nov 4, 10:50 AM CST | 64.6 |
| Nov 4, 9:55 AM CST | 64.6 |
| Nov 4, 9:00 AM CST | 64.6 |
| Nov 4, 8:05 AM CST | 64.6 |
| Nov 4, 7:10 AM CST | 64.4 |
| Nov 4, 6:15 AM CST | 64.4 |
| Nov 4, 5:20 AM CST | 64.6 |
| Nov 4, 4:25 AM CST | 64.4 |
| Nov 4, 3:30 AM CST | 64.4 |
| Nov 4, 2:35 AM CST | 64.4 |
| Nov 4, 1:40 AM CST | 64.4 |
| Nov 4, 12:45 AM CST | 64.6 |
| Nov 3, 11:50 PM CST | 64.6 |
| Nov 3, 10:55 PM CST | 64.6 |
| Nov 3, 10:00 PM CST | 64.8 |
| Nov 3, 9:05 PM CST | 64.8 |
| Nov 3, 8:10 PM CST | 64.9 |
| Nov 3, 7:15 PM CST | 64.8 |
| Nov 3, 6:20 PM CST | 64.9 |
| Nov 3, 5:25 PM CST | 64.9 |
| Nov 3, 4:30 PM CST | 64.9 |
| Nov 3, 3:35 PM CST | 64.8 |
| Nov 3, 2:40 PM CST | 64.9 |
| Nov 3, 1:45 PM CST | 64.9 |
| Nov 3, 12:50 PM CST | 64.8 |
| Nov 3, 11:55 AM CST | 64.8 |
| Nov 3, 11:00 AM CST | 64.8 |
| Nov 3, 10:05 AM CST | 64.8 |
| Nov 3, 9:10 AM CST | 64.8 |
| Nov 3, 8:15 AM CST | 64.8 |
| Nov 3, 7:20 AM CST | 64.6 |
| Nov 3, 6:25 AM CST | 64.6 |
| Nov 3, 5:30 AM CST | 64.6 |
| Nov 3, 4:35 AM CST | 64.6 |
| Nov 3, 3:40 AM CST | 64.6 |
| Nov 3, 2:45 AM CST | 64.6 |
| Nov 3, 1:50 AM CST | 64.6 |
| Nov 3, 12:55 AM CST | 64.6 |
| Nov 3, 12:00 AM CST | 64.6 |
| Nov 2, 11:05 PM CST | 64.6 |
| Nov 2, 10:10 PM CST | 64.6 |
| Nov 2, 9:15 PM CST | 64.6 |
| Nov 2, 8:20 PM CST | 64.6 |
| Nov 2, 7:25 PM CST | 64.8 |
| Nov 2, 6:30 PM CST | 64.6 |
| Nov 2, 5:35 PM CST | 64.6 |
| Nov 2, 4:40 PM CST | 64.6 |
| Nov 2, 3:45 PM CST | 64.6 |
| Nov 2, 2:50 PM CST | 64.6 |
| Nov 2, 1:55 PM CST | 64.6 |
| Nov 2, 1:00 PM CST | 64.6 |
| Nov 2, 12:05 PM CST | 64.6 |
| Nov 2, 11:10 AM CST | 64.6 |
| Nov 2, 10:15 AM CST | 64.6 |
| Nov 2, 9:20 AM CST | 64.6 |
| Nov 2, 8:25 AM CST | 64.6 |
| Nov 2, 7:30 AM CST | 64.6 |
| Nov 2, 6:35 AM CST | 64.6 |
| Nov 2, 5:40 AM CST | 64.6 |
| Nov 2, 4:45 AM CST | 64.6 |
| Nov 2, 3:50 AM CST | 64.6 |
| Nov 2, 2:55 AM CST | 64.6 |
| Nov 2, 2:00 AM CST | 64.6 |
| Nov 2, 1:05 AM CST | 64.4 |
| Nov 2, 12:10 AM CST | 64.4 |
| Nov 1, 11:15 PM CST | 64.4 |
| Nov 1, 10:20 PM CST | 64.4 |
| Nov 1, 9:25 PM CST | 64.6 |
| Nov 1, 8:30 PM CST | 64.4 |
| Nov 1, 7:35 PM CST | 64.4 |
| Nov 1, 6:40 PM CST | 64.6 |
| Nov 1, 5:45 PM CST | 64.4 |
| Nov 1, 4:50 PM CST | 64.6 |
| Nov 1, 3:55 PM CST | 64.6 |
| Nov 1, 3:00 PM CST | 64.6 |
| Nov 1, 2:05 PM CST | 64.6 |
| Nov 1, 1:10 PM CST | 64.6 |
| Nov 1, 12:15 PM CST | 64.6 |
| Nov 1, 11:20 AM CST | 64.6 |
| Nov 1, 10:25 AM CST | 64.8 |
| Nov 1, 9:30 AM CST | 64.6 |
| Nov 1, 8:35 AM CST | 64.8 |
| Nov 1, 7:40 AM CST | 64.8 |
| Nov 1, 6:45 AM CST | 64.6 |
| Nov 1, 5:50 AM CST | 64.8 |
| Nov 1, 4:55 AM CST | 64.6 |
| Nov 1, 4:00 AM CST | 64.6 |
| Nov 1, 3:05 AM CST | 64.8 |
| Nov 1, 2:10 AM CST | 64.6 |
| Nov 1, 1:15 AM CST | 64.6 |
| Nov 1, 1:20 AM CDT | 64.6 |
| Nov 1, 12:25 AM CDT | 64.6 |
| Oct 31, 11:30 PM CDT | 64.8 |
| Oct 31, 10:35 PM CDT | 64.8 |
| Oct 31, 9:40 PM CDT | 64.8 |
| Oct 31, 8:45 PM CDT | 64.6 |
| Oct 31, 7:50 PM CDT | 64.6 |
| Oct 31, 6:55 PM CDT | 64.6 |
| Oct 31, 6:00 PM CDT | 64.6 |
| Oct 31, 5:05 PM CDT | 64.6 |
| Oct 31, 4:10 PM CDT | 64.6 |
| Oct 31, 3:15 PM CDT | 64.6 |
| Oct 31, 2:20 PM CDT | 64.6 |
| Oct 31, 1:25 PM CDT | 64.6 |
| Oct 31, 12:30 PM CDT | 64.4 |
| Oct 31, 11:35 AM CDT | 64.4 |
| Oct 31, 10:40 AM CDT | 64.4 |
| Oct 31, 9:45 AM CDT | 64.4 |
| Oct 31, 8:50 AM CDT | 64.6 |
| Oct 31, 7:55 AM CDT | 64.6 |
| Oct 31, 7:00 AM CDT | 64.6 |
| Oct 31, 6:05 AM CDT | 64.6 |
| Oct 31, 5:10 AM CDT | 64.6 |
| Oct 31, 4:15 AM CDT | 64.6 |
| Oct 31, 3:20 AM CDT | 64.6 |
| Oct 31, 2:25 AM CDT | 64.6 |
| Oct 31, 1:30 AM CDT | 64.6 |
| Oct 31, 12:35 AM CDT | 64.6 |
| Oct 30, 11:40 PM CDT | 64.8 |
| Oct 30, 10:45 PM CDT | 64.8 |
| Oct 30, 9:50 PM CDT | 64.9 |
| Oct 30, 8:55 PM CDT | 65.1 |
| Oct 30, 8:00 PM CDT | 64.9 |
| Oct 30, 7:05 PM CDT | 64.9 |
| Oct 30, 6:10 PM CDT | 64.9 |
| Oct 30, 5:15 PM CDT | 64.9 |
| Oct 30, 4:20 PM CDT | 64.9 |
| Oct 30, 3:25 PM CDT | 64.9 |
| Oct 30, 2:30 PM CDT | 64.9 |
| Oct 30, 1:35 PM CDT | 64.9 |
| Oct 30, 12:40 PM CDT | 64.9 |
| Oct 30, 11:45 AM CDT | 64.9 |
| Oct 30, 10:50 AM CDT | 64.9 |
| Oct 30, 9:55 AM CDT | 64.9 |
| Oct 30, 9:00 AM CDT | 64.9 |
| Oct 30, 8:05 AM CDT | 64.9 |
| Oct 30, 7:10 AM CDT | 64.9 |
| Oct 30, 6:15 AM CDT | 64.9 |
| Oct 30, 5:20 AM CDT | 65.1 |
| Oct 30, 4:25 AM CDT | 64.9 |
| Oct 30, 3:30 AM CDT | 65.1 |
| Oct 30, 2:35 AM CDT | 65.1 |
| Oct 30, 1:40 AM CDT | 64.9 |
| Oct 30, 12:45 AM CDT | 64.9 |
| Oct 29, 11:50 PM CDT | 64.9 |
| Oct 29, 10:55 PM CDT | 64.9 |
| Oct 29, 10:00 PM CDT | 64.9 |
| Oct 29, 9:05 PM CDT | 65.1 |
| Oct 29, 8:10 PM CDT | 65.1 |
| Oct 29, 7:40 PM CDT | 65.1 |
Map of USGS gauge 05536995 and the river around it
Where CHICAGO SANITARY AND SHIP CANAL AT ROMEOVILLE, IL sits, with 3 other gauges on the same river.
Federal guidance. 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:
Under the federal 68°F line. Water 64.2°F now; the highest in the last 24 hours was 64.6°F. That is under the 68°F at which the National Park Service, at Grand Teton National Park, recommends anglers stop fishing in the afternoon (“cease fishing at 2 p.m. when water temperatures are likely to exceed 68°F”). Water warms through the afternoon, so check again later in the day: “Carry a pocket thermometer to monitor water temperature.”
High water temperatures prompt fishing advisory in Grand Teton National Park (29 July 2022) (National Park Service)Species list not on file for this gauge. Check the Illinois Department of Natural Resources: Illinois fish stocking · Illinois Fishing Information 2026 (regulations).
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)Specific conductance 1,010 µS/cm at Nov 5, 6:00 PM CST; 7-day range 886–1,070 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.
NWS observation not current. NWS has no current observation at this gauge, so no flood category is shown.
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.