Weather for Chatham, Illinois
Current Weather
Five Day Weather Forecast
Sat
H: 88°F
L: 63°F
Sun
H: 69°F
L: 59°F
Mon
H: 72°F
L: 58°F
Tue
H: 77°F
L: 61°F
Wed
H: 86°F
L: 63°F
Air Quality
Nitrogen Dioxide: 20.1 μg/m3
Sulphur Dioxide: 0.7 μg/m3
Ozone: 31 μg/m3
Astronomical
Sun Transit: 12:58 AM
Sunset: 8:28 PM
Daylight: 14 hrs 58 mins
Moon Transit: 11:26 AM
Moonset: 7:23 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.1%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM10:56 AM - 1:26 PM
Minor Periods
6:53 PM - 8:23 PM3:09 AM - 4:39 AM
Action Rating: 3 out of 5
Flood Warning issued June 12 at 10:26AM CDT by NWS Lincoln IL
Effective: Fri June 12, 2026, 10:26 AM
Expires: Sat June 13, 2026, 2:30 AM
...The Flood Warning is extended for the following river in Illinois... Illinois River near Havana affecting Fulton, Mason and Cass Counties. Illinois River at Beardstown affecting Brown, Cass, Schuyler and Morgan Counties. .The following forecasts are based on observed precipitation, soil moisture conditions, and forecast precipitation. * WHAT...Minor flooding is forecast. * WHERE...Illinois River at Beardstown. * WHEN...From late tonight until further notice. * IMPACTS...At 18.0 feet, Seepage problems begin in the Lost Creek Drainage and Levee District. * ADDITIONAL DETAILS... - At 9:45 AM CDT Friday the stage was 13.2 feet. - Forecast...The river is expected to rise above flood stage late tonight and continue rising to 17.9 feet Friday, June 19. Additional rises are possible thereafter. - 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 June 12 at 9:38PM CDT by NWS Lincoln IL
Effective: Fri June 12, 2026, 9:38 PM
Expires: Sat June 13, 2026, 1:45 PM
...The Flood Warning is extended for the following rivers in Illinois... Illinois River at Beardstown affecting Brown, Morgan, Cass and Schuyler Counties. Illinois River at Peoria affecting Woodford, Tazewell and Peoria Counties. ...The Flood Warning continues for the following rivers in Illinois... Illinois River near Havana affecting Cass, Mason and Fulton Counties. .The following forecasts are based on observed precipitation, soil moisture conditions, and forecast precipitation. * WHAT...Minor flooding is forecast. * WHERE...Illinois River at Beardstown. * WHEN...From late tonight 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 Friday the stage was 13.8 feet. - Forecast...The river is expected to rise above flood stage late tonight and continue rising to a crest of 17.4 feet Friday, June 19. - 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 June 12 at 10:26AM CDT by NWS Lincoln IL
Effective: Fri June 12, 2026, 10:26 AM
Expires: Sat June 13, 2026, 2:30 AM
...The Flood Warning is extended for the following river in Illinois... Illinois River near Havana affecting Fulton, Mason and Cass Counties. Illinois River at Beardstown affecting Brown, Cass, Schuyler and Morgan Counties. .The following forecasts are based on observed precipitation, soil moisture conditions, and forecast precipitation. * WHAT...Moderate flooding is forecast. * WHERE...Illinois River near Havana. * WHEN...From this afternoon until further notice. * IMPACTS...At 19.5 feet, Access road to Anderson Lake north campground closed. * ADDITIONAL DETAILS... - At 9:45 AM CDT Friday the stage was 13.8 feet. - Forecast...The river is expected to rise above flood stage late this afternoon and continue rising to 18.3 feet Friday, June 19. Additional rises are possible thereafter. - 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 June 12 at 9:38PM CDT by NWS Lincoln IL
Effective: Fri June 12, 2026, 9:38 PM
Expires: Sat June 13, 2026, 1:45 PM
...The Flood Warning is extended for the following rivers in Illinois... Illinois River at Beardstown affecting Brown, Morgan, Cass and Schuyler Counties. Illinois River at Peoria affecting Woodford, Tazewell and Peoria Counties. ...The Flood Warning continues for the following rivers in Illinois... Illinois River near Havana affecting Cass, Mason and Fulton Counties. .The following forecasts are based on observed precipitation, soil moisture conditions, and forecast precipitation. * WHAT...Minor flooding is occurring and moderate flooding is forecast. * WHERE...Illinois River near Havana. * WHEN...Until further notice. * IMPACTS...At 19.5 feet, Access road to Anderson Lake north campground closed. * ADDITIONAL DETAILS... - At 8:45 PM CDT Friday the stage was 14.4 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:45 PM CDT Friday was 14.4 feet. - Forecast...The river is expected to rise to a crest of 18.2 feet Thursday evening. - 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: 8.15 μg/m3
Sulphur Dioxide: 1.33 μg/m3
Ozone: 72.25 μg/m3
Astronomical
Sun Transit: 12:58 AM
Sunset: 8:28 PM
Daylight: 14 hrs 58 mins
Moon Transit: 11:26 AM
Moonset: 7:23 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.1%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM10:56 AM - 1:26 PM
Minor Periods
6:53 PM - 8:23 PM3:09 AM - 4:39 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 3.85 μg/m3
Sulphur Dioxide: 0.6 μg/m3
Ozone: 63.33 μg/m3
Astronomical
Sun Transit: 1:00 PM
Sunset: 8:28 PM
Daylight: 14 hrs 58 mins
Moon Transit: 12:32 AM
Moonset: 8:38 PM
Moon Phase: New
Moon Illumination: 0.7%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM12:02 AM - 2:32 PM
Minor Periods
8:08 PM - 9:38 PM4:01 AM - 5:31 AM
Action Rating: 5 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 8.01 μg/m3
Sulphur Dioxide: 0.4 μg/m3
Ozone: 57.29 μg/m3
Astronomical
Sun Transit: 1:00 PM
Sunset: 8:28 PM
Daylight: 14 hrs 58 mins
Moon Transit: 1:40 PM
Moonset: 9:42 PM
Moon Phase: New
Moon Illumination: 3.8%
Best Times for Fishing or Hunting
Major Periods
12:39 AM - 3:09 AM1:10 PM - 3:40 PM
Minor Periods
9:12 PM - 10:42 PM5:05 AM - 6:35 AM
Action Rating: 4 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 8.27 μg/m3
Sulphur Dioxide: 0.75 μg/m3
Ozone: 65.83 μg/m3
Astronomical
Sun Transit: 1:00 PM
Sunset: 8:29 PM
Daylight: 14 hrs 59 mins
Moon Transit: 2:46 PM
Moonset: 10:33 PM
Moon Phase: New
Moon Illumination: 1.0%
Best Times for Fishing or Hunting
Major Periods
1:46 AM - 4:16 AM2:16 PM - 4:46 PM
Minor Periods
10:03 PM - 11:33 PM6:20 AM - 7:50 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 6 μg/m3
Sulphur Dioxide: 0.59 μg/m3
Ozone: 53.75 μg/m3
Astronomical
Sun Transit: 1:00 PM
Sunset: 8:29 PM
Daylight: 14 hrs 59 mins
Moon Transit: 3:46 PM
Moonset: 11:12 PM
Moon Phase: Waxing Crescent
Moon Illumination: 4.6%
Best Times for Fishing or Hunting
Major Periods
2:50 AM - 5:20 AM3:16 PM - 5:46 PM
Minor Periods
12:00 AM - 12:00 AM7:39 AM - 9:09 AM
Action Rating: 3 out of 5