Weather for Chatham, Illinois
Current Weather
Five Day Weather Forecast
Sat
H: 69°F
L: 42°F
Sun
H: 74°F
L: 58°F
Mon
H: 77°F
L: 65°F
Tue
H: 83°F
L: 66°F
Wed
H: 76°F
L: 67°F
Air Quality
Nitrogen Dioxide: 3.65 μg/m3
Sulphur Dioxide: 3.05 μg/m3
Ozone: 92 μg/m3
Astronomical
Sun Transit: 1:00 PM
Sunset: 7:33 PM
Daylight: 13 hrs 5 mins
Moon Transit: 8:19 AM
Moonset: 1:17 PM
Moon Phase: Last Quarter
Moon Illumination: 21.1%
Best Times for Fishing or Hunting
Major Periods
7:49 AM - 10:19 AM8:16 PM - 10:46 PM
Minor Periods
12:47 AM - 2:17 PM2:59 AM - 4:29 AM
Action Rating: 2 out of 5
Flood Warning issued April 10 at 12:15PM CDT by NWS Lincoln IL
Effective: Fri April 10, 2026, 12:15 PM
Expires: Sat April 11, 2026, 4:15 AM
...The Flood Warning continues for the following rivers in Illinois... Illinois River near Havana affecting Mason, Cass and Fulton Counties. Illinois River at Beardstown affecting Schuyler, Morgan, Cass and Brown 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 14.4 feet, Seepage problems begin in the Coal Creek Drainage and Levee District. * ADDITIONAL DETAILS... - At 11:45 AM CDT Friday the stage was 15.1 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 11:45 AM CDT Friday was 15.1 feet. - Forecast...The river is expected to rise to a crest of 15.2 feet tomorrow morning. - 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. Caution is urged when walking near riverbanks. Additional information is available at www.weather.gov.
Flood Warning issued April 10 at 9:09PM CDT by NWS Lincoln IL
Effective: Fri April 10, 2026, 9:09 PM
Expires: Sat April 11, 2026, 1:15 PM
...The Flood Warning continues for the following rivers in Illinois... Illinois River near Havana affecting Cass, Mason and Fulton Counties. Illinois River at Beardstown affecting Cass, Morgan, Schuyler and Brown 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 14.4 feet, Seepage problems begin in the Coal Creek Drainage and Levee District. * ADDITIONAL DETAILS... - At 8:45 PM CDT Friday the stage was 15.2 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:45 PM CDT Friday was 15.2 feet. - Forecast...The river is expected to rise to a crest of 15.2 feet just after midnight tonight. - Flood stage is 14.0 feet.
Caution is urged when walking near riverbanks. 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 April 10 at 12:15PM CDT by NWS Lincoln IL
Effective: Fri April 10, 2026, 12:15 PM
Expires: Sat April 11, 2026, 4:15 AM
...The Flood Warning continues for the following rivers in Illinois... Illinois River near Havana affecting Mason, Cass and Fulton Counties. Illinois River at Beardstown affecting Schuyler, Morgan, Cass and Brown 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 near Havana. * WHEN...Until further notice. * ADDITIONAL DETAILS... - At 11:45 AM CDT Friday the stage was 15.8 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 11:45 AM CDT Friday was 15.9 feet. - Forecast...The river will fall to 15.8 feet tomorrow evening. It will then rise to 16.0 feet Sunday morning. It will fall to 15.9 feet Tuesday morning. It will then rise to 16.0 feet Wednesday evening. It will fall again but remain above flood stage. - 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. Caution is urged when walking near riverbanks. Additional information is available at www.weather.gov.
Flood Warning issued April 10 at 9:09PM CDT by NWS Lincoln IL
Effective: Fri April 10, 2026, 9:09 PM
Expires: Sat April 11, 2026, 1:15 PM
...The Flood Warning continues for the following rivers in Illinois... Illinois River near Havana affecting Cass, Mason and Fulton Counties. Illinois River at Beardstown affecting Cass, Morgan, Schuyler and Brown 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 near Havana. * WHEN...Until further notice. * IMPACTS...At 14.0 feet, Minor flooding begins to agricultural areas not protected by levees. * ADDITIONAL DETAILS... - At 8:45 PM CDT Friday the stage was 15.8 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:45 PM CDT Friday was 15.9 feet. - Forecast...The river is expected to fall to 14.5 feet Friday, April 17. - Flood stage is 14.0 feet.
Caution is urged when walking near riverbanks. 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: 6.06 μg/m3
Sulphur Dioxide: 2.86 μg/m3
Ozone: 77.08 μg/m3
Astronomical
Sun Transit: 1:00 PM
Sunset: 7:33 PM
Daylight: 13 hrs 5 mins
Moon Transit: 8:19 AM
Moonset: 1:17 PM
Moon Phase: Last Quarter
Moon Illumination: 21.1%
Best Times for Fishing or Hunting
Major Periods
7:49 AM - 10:19 AM8:16 PM - 10:46 PM
Minor Periods
12:47 AM - 2:17 PM2:59 AM - 4:29 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 4.18 μg/m3
Sulphur Dioxide: 5.75 μg/m3
Ozone: 97.2 μg/m3
Astronomical
Sun Transit: 1:00 PM
Sunset: 7:34 PM
Daylight: 13 hrs 8 mins
Moon Transit: 9:06 AM
Moonset: 2:24 PM
Moon Phase: Waning Crescent
Moon Illumination: 12.6%
Best Times for Fishing or Hunting
Major Periods
8:36 AM - 11:06 AM9:02 PM - 11:32 PM
Minor Periods
1:54 PM - 3:24 PM3:28 AM - 4:58 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 3.69 μg/m3
Sulphur Dioxide: 1.88 μg/m3
Ozone: 88.4 μg/m3
Astronomical
Sun Transit: 1:00 PM
Sunset: 7:35 PM
Daylight: 13 hrs 10 mins
Moon Transit: 9:52 AM
Moonset: 3:31 PM
Moon Phase: Waning Crescent
Moon Illumination: 6.1%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM9:22 AM - 11:52 AM
Minor Periods
3:01 PM - 4:31 PM3:54 AM - 5:24 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 3.69 μg/m3
Sulphur Dioxide: 1.76 μg/m3
Ozone: 82.96 μg/m3
Astronomical
Sun Transit: 12:58 AM
Sunset: 7:36 PM
Daylight: 13 hrs 13 mins
Moon Transit: 10:38 AM
Moonset: 4:40 PM
Moon Phase: Waning Crescent
Moon Illumination: 1.9%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM10:08 AM - 12:38 AM
Minor Periods
4:10 PM - 5:40 PM4:18 AM - 5:48 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 4.8 μg/m3
Sulphur Dioxide: 2.03 μg/m3
Ozone: 76.62 μg/m3
Astronomical
Sun Transit: 12:58 AM
Sunset: 7:37 PM
Daylight: 13 hrs 15 mins
Moon Transit: 10:33 AM
Moonset: 5:51 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.1%
Best Times for Fishing or Hunting
Major Periods
10:03 AM - 12:33 AM10:03 AM - 12:33 AM
Minor Periods
5:21 PM - 6:51 PM4:41 AM - 6:11 AM
Action Rating: 3 out of 5