Weather for Chatham, Illinois
Current Weather
Five Day Weather Forecast
Thu
H: 95°F
L: 72°F
Fri
H: 85°F
L: 69°F
Sat
H: 82°F
L: 67°F
Sun
H: 82°F
L: 66°F
Mon
H: 80°F
L: 64°F
Air Quality
Nitrogen Dioxide: 13 μg/m3
Sulphur Dioxide: 1.9 μg/m3
Ozone: 70 μg/m3
Astronomical
Sun Transit: 1:03 PM
Sunset: 8:29 PM
Daylight: 14 hrs 49 mins
Moon Transit: 8:11 AM
Moonset: 3:41 PM
Moon Phase: Last Quarter
Moon Illumination: 17.4%
Best Times for Fishing or Hunting
Major Periods
7:41 AM - 10:11 AM8:12 PM - 10:42 PM
Minor Periods
3:11 PM - 4:41 PM12:25 AM - 1:55 AM
Action Rating: 3 out of 5
Flood Warning issued July 8 at 10:04AM CDT by NWS Lincoln IL
Effective: Wed July 8, 2026, 10:04 AM
Expires: Thu July 9, 2026, 2:15 AM
...The Flood Warning continues for the following rivers in Illinois... Illinois River at Peoria affecting Peoria, Tazewell and Woodford Counties. Illinois River at Beardstown affecting Schuyler, Brown, Morgan and Cass Counties. Illinois River at Havana affecting Mason, Cass and Fulton Counties. .The Illinois River will level off for a time later this week, but the overall trend is for falling levels by the weekend. The following forecasts are based on observed precipitation, soil moisture conditions, and forecast precipitation. * WHAT...Moderate flooding is occurring and moderate flooding is forecast. * WHERE...Illinois River at Havana. * WHEN...Until further notice. * ADDITIONAL DETAILS... - At 9:45 AM CDT Wednesday the stage was 17.4 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 9:45 AM CDT Wednesday was 17.4 feet. - Forecast...The river will be nearly steady through Friday morning, then begin a slow fall. - Flood stage is 14.0 feet.
Persons with interests along this river need to remain aware of the latest forecasts and associated flood risk for their area. Stay tuned for further updates on this flooding situation. Additional information is available at www.weather.gov.
Flood Warning issued July 8 at 10:04AM CDT by NWS Lincoln IL
Effective: Wed July 8, 2026, 10:04 AM
Expires: Thu July 9, 2026, 2:15 AM
...The Flood Warning continues for the following rivers in Illinois... Illinois River at Peoria affecting Peoria, Tazewell and Woodford Counties. Illinois River at Beardstown affecting Schuyler, Brown, Morgan and Cass Counties. Illinois River at Havana affecting Mason, Cass and Fulton Counties. .The Illinois River will level off for a time later this week, but the overall trend is for falling levels by the weekend. The following forecasts are based on observed precipitation, soil moisture conditions, and forecast precipitation. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Illinois River at Beardstown. * WHEN...Until further notice. * ADDITIONAL DETAILS... - At 9:45 AM CDT Wednesday the stage was 17.4 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 9:45 AM CDT Wednesday was 17.7 feet. - Forecast...The river will fall to 17.3 feet early Friday afternoon, then remain nearly steady through Sunday. It will fall again on Monday, but remain above flood stage. - Flood stage is 14.0 feet.
Persons with interests along this river need to remain aware of the latest forecasts and associated flood risk for their area. Stay tuned for further updates on this flooding situation. Additional information is available at www.weather.gov.
Flood Warning issued July 8 at 9:47PM CDT by NWS Lincoln IL
Effective: Wed July 8, 2026, 9:47 PM
Expires: Thu July 9, 2026, 2:00 PM
...The Flood Warning continues for the following rivers in Illinois... Illinois River at Peoria affecting Woodford, Tazewell and Peoria Counties. Illinois River at Beardstown affecting Brown, Cass, Schuyler and Morgan Counties. Illinois River near Havana affecting Mason, Cass and Fulton Counties. .The following forecasts are based on observed precipitation, soil moisture conditions, and forecast precipitation. * WHAT...Moderate flooding is occurring and moderate flooding is forecast. * WHERE...Illinois River near Havana. * WHEN...Until further notice. * ADDITIONAL DETAILS... - At 8:45 PM CDT Wednesday the stage was 17.4 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:45 PM CDT Wednesday was 17.4 feet. - Forecast...The river is expected to fall to 15.1 feet Wednesday, July 15. - Flood stage is 14.0 feet. - http://www.weather.gov/safety/flood
Persons with interests along this river need to remain aware of the latest forecasts and associated flood risk for their area. Stay tuned for further updates on this flooding situation. Additional information is available at www.weather.gov.
Flood Warning issued July 8 at 9:47PM CDT by NWS Lincoln IL
Effective: Wed July 8, 2026, 9:47 PM
Expires: Thu July 9, 2026, 2:00 PM
...The Flood Warning continues for the following rivers in Illinois... Illinois River at Peoria affecting Woodford, Tazewell and Peoria Counties. Illinois River at Beardstown affecting Brown, Cass, Schuyler and Morgan Counties. Illinois River near Havana affecting Mason, Cass and Fulton Counties. .The following forecasts are based on observed precipitation, soil moisture conditions, and forecast precipitation. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Illinois River at Beardstown. * WHEN...Until further notice. * IMPACTS...At 18.0 feet, Seepage problems begin in the Lost Creek Drainage and Levee District. * ADDITIONAL DETAILS... - At 8:45 PM CDT Wednesday the stage was 17.4 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:45 PM CDT Wednesday was 17.5 feet. - Forecast...The river is expected to fall to 16.0 feet Wednesday, July 15. - Flood stage is 14.0 feet. - http://www.weather.gov/safety/flood
Persons with interests along this river need to remain aware of the latest forecasts and associated flood risk for their area. Stay tuned for further updates on this flooding situation. Additional information is available at www.weather.gov.
Weather Forecast
Air Quality
Nitrogen Dioxide: 7.04 μg/m3
Sulphur Dioxide: 1.59 μg/m3
Ozone: 82.08 μg/m3
Astronomical
Sun Transit: 1:03 PM
Sunset: 8:29 PM
Daylight: 14 hrs 49 mins
Moon Transit: 8:11 AM
Moonset: 3:41 PM
Moon Phase: Last Quarter
Moon Illumination: 17.4%
Best Times for Fishing or Hunting
Major Periods
7:41 AM - 10:11 AM8:12 PM - 10:42 PM
Minor Periods
3:11 PM - 4:41 PM12:25 AM - 1:55 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 6.58 μg/m3
Sulphur Dioxide: 1.15 μg/m3
Ozone: 75.04 μg/m3
Astronomical
Sun Transit: 1:04 PM
Sunset: 8:28 PM
Daylight: 14 hrs 48 mins
Moon Transit: 9:08 AM
Moonset: 4:58 PM
Moon Phase: Waning Crescent
Moon Illumination: 9.7%
Best Times for Fishing or Hunting
Major Periods
8:38 AM - 11:08 AM9:12 PM - 11:42 PM
Minor Periods
4:28 PM - 5:58 PM1:00 AM - 2:30 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 5.97 μg/m3
Sulphur Dioxide: 1.6 μg/m3
Ozone: 67.13 μg/m3
Astronomical
Sun Transit: 1:04 PM
Sunset: 8:28 PM
Daylight: 14 hrs 47 mins
Moon Transit: 10:11 AM
Moonset: 6:14 PM
Moon Phase: Waning Crescent
Moon Illumination: 4.1%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM9:41 AM - 12:11 AM
Minor Periods
5:44 PM - 7:14 PM1:46 AM - 3:16 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 6.19 μg/m3
Sulphur Dioxide: 1.19 μg/m3
Ozone: 70.29 μg/m3
Astronomical
Sun Transit: 1:04 PM
Sunset: 8:27 PM
Daylight: 14 hrs 46 mins
Moon Transit: 11:17 AM
Moonset: 7:22 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.8%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM10:47 AM - 1:17 PM
Minor Periods
6:52 PM - 8:22 PM2:43 AM - 4:13 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 13.79 μg/m3
Sulphur Dioxide: 1.34 μg/m3
Ozone: 42.63 μg/m3
Astronomical
Sun Transit: 1:04 PM
Sunset: 8:27 PM
Daylight: 14 hrs 45 mins
Moon Transit: 12:24 AM
Moonset: 8:20 PM
Moon Phase: New
Moon Illumination: 0.1%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM11:54 AM - 2:24 PM
Minor Periods
7:50 PM - 9:20 PM3:53 AM - 5:23 AM
Action Rating: 4 out of 5