National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Springfield - Abraham Lincoln Capital Airport (KSPI)

Lat: 39.85°NLon: 89.68°WElev: 587ft.

Fair

67°F

19°C

Humidity 47%
Wind Speed E 12 mph
Barometer 30.11 in (1019.4 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 21 May 5:52 pm CDT
Extended Forecast for

Chatham IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 53. East wind 8 to 13 mph, with gusts as high as 20 mph.

    Low: 53 °F

    Mostly Cloudy

  • Friday

    Friday: A 40 percent chance of showers, mainly after 2pm. Cloudy, with a high near 69. East northeast wind around 11 mph, with gusts as high as 18 mph.

    High: 69 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A 40 percent chance of showers. Cloudy, with a low around 55. East northeast wind 3 to 8 mph.

    Low: 55 °F

    Chance
    Showers

  • Saturday

    Saturday: Partly sunny, with a high near 78. West northwest wind 5 to 7 mph.

    High: 78 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 58. Light and variable wind.

    Low: 58 °F

    Partly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 80. Calm wind becoming east around 6 mph in the afternoon. Chance of precipitation is 50%.

    High: 80 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 58. Calm wind.

    Low: 58 °F

    Mostly Cloudy

  • Memorial Day

    Memorial Day: Partly sunny, with a high near 81.

    High: 81 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 61.

    Low: 61 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 53. East wind 8 to 13 mph, with gusts as high as 20 mph.
Friday
A 40 percent chance of showers, mainly after 2pm. Cloudy, with a high near 69. East northeast wind around 11 mph, with gusts as high as 18 mph.
Friday Night
A 40 percent chance of showers. Cloudy, with a low around 55. East northeast wind 3 to 8 mph.
Saturday
Partly sunny, with a high near 78. West northwest wind 5 to 7 mph.
Saturday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 58. Light and variable wind.
Sunday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 80. Calm wind becoming east around 6 mph in the afternoon. Chance of precipitation is 50%.
Sunday Night
Mostly cloudy, with a low around 58. Calm wind.
Memorial Day
Partly sunny, with a high near 81.
Monday Night
Mostly cloudy, with a low around 61.
Tuesday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 82. Chance of precipitation is 40%.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 83.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 64.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 84.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Chatham IL
 39.67°N 89.7°W (Elev. 600 ft)
Last Update:
2:21 pm CDT May 21, 2026
Forecast Valid:
6pm CDT May 21, 2026-6pm CDT May 28, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation