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

69°F

21°C

Humidity 51%
Wind Speed S 8 mph
Barometer 29.91 in (1012.3 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 30 Sep 2:52 am CDT
Extended Forecast for

Chatham IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 65. South wind around 8 mph.

    Low: 65 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers before 10am. Mostly cloudy, with a high near 85. South wind 7 to 9 mph, with gusts as high as 17 mph.

    High: 85 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 70. Southeast wind 6 to 11 mph, with gusts as high as 18 mph.

    Low: 70 °F

    Mostly Cloudy

  • Thursday

    Thursday: Showers likely after 10am. Mostly cloudy, with a high near 81. Southwest wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 81 °F

    Chance
    Showers then
    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers. Low around 62. West wind 5 to 8 mph becoming north after midnight. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 62 °F

    Showers

  • Friday

    Friday: A 30 percent chance of showers before 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 70. North northeast wind around 11 mph, with gusts as high as 18 mph.

    High: 70 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 52. Northeast wind 5 to 8 mph.

    Low: 52 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 65. South wind around 8 mph.
Wednesday
A 20 percent chance of showers before 10am. Mostly cloudy, with a high near 85. South wind 7 to 9 mph, with gusts as high as 17 mph.
Wednesday Night
Mostly cloudy, with a low around 70. Southeast wind 6 to 11 mph, with gusts as high as 18 mph.
Thursday
Showers likely after 10am. Mostly cloudy, with a high near 81. Southwest wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Showers. Low around 62. West wind 5 to 8 mph becoming north after midnight. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Friday
A 30 percent chance of showers before 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 70. North northeast wind around 11 mph, with gusts as high as 18 mph.
Friday Night
Mostly clear, with a low around 52. Northeast wind 5 to 8 mph.
Saturday
Sunny, with a high near 71.
Saturday Night
Partly cloudy, with a low around 51.
Sunday
Sunny, with a high near 72.
Sunday Night
Mostly clear, with a low around 47.
Monday
Sunny, with a high near 67.
Monday Night
Mostly clear, with a low around 44.
Tuesday
Sunny, with a high near 69.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chatham IL
 39.67°N 89.7°W (Elev. 600 ft)
Last Update:
1:26 am CDT Sep 30, 2026
Forecast Valid:
3am CDT Sep 30, 2026-6pm CDT Oct 6, 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