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Hazardous Weather Conditions

Current conditions at

Springfield - Abraham Lincoln Capital Airport (KSPI)

Lat: 39.85°NLon: 89.68°WElev: 587ft.

Thunderstorm

73°F

23°C

Humidity 94%
Wind Speed N 13 G 20 mph
Barometer 30.12 in (1019.6 mb)
Dewpoint 71°F (22°C)
Visibility 9.00 mi
Last update 14 Aug 9:52 am CDT
Extended Forecast for

Chatham IL

Heat Advisory August 14, 10:47am until August 16, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 14, 10:47am until August 16, 08:00pm

    NOW until 8:00pm Sun

    Heat Advisory

  • Today

    High: 90 °F

    Showers then
    Chance
    Showers

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly after 5am. Partly cloudy, with a low around 74. East southeast wind 5 to 8 mph.

    Low: 74 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers and thunderstorms before 11am, then a chance of showers between 11am and noon. Partly sunny, with a high near 93. Heat index values as high as 109. Southwest wind 6 to 9 mph, with gusts as high as 16 mph. Chance of precipitation is 30%.

    High: 93 °F

    Chance
    Showers then
    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 75. West southwest wind 3 to 6 mph.

    Low: 75 °F

    Partly Cloudy

  • Sunday

    Sunday: A 40 percent chance of showers after 1pm. Partly sunny, with a high near 91. West wind 5 to 8 mph.

    High: 91 °F

    Partly Sunny
    then Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 70. North northwest wind 5 to 8 mph.

    Low: 70 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 84. North wind 5 to 7 mph.

    High: 84 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

Detailed Forecast

Today
Showers and thunderstorms before 1pm, then a slight chance of showers between 1pm and 2pm. High near 90. Heat index values as high as 103. Southeast wind around 7 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A 30 percent chance of showers and thunderstorms, mainly after 5am. Partly cloudy, with a low around 74. East southeast wind 5 to 8 mph.
Saturday
A chance of showers and thunderstorms before 11am, then a chance of showers between 11am and noon. Partly sunny, with a high near 93. Heat index values as high as 109. Southwest wind 6 to 9 mph, with gusts as high as 16 mph. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 75. West southwest wind 3 to 6 mph.
Sunday
A 40 percent chance of showers after 1pm. Partly sunny, with a high near 91. West wind 5 to 8 mph.
Sunday Night
Mostly cloudy, with a low around 70. North northwest wind 5 to 8 mph.
Monday
Mostly sunny, with a high near 84. North wind 5 to 7 mph.
Monday Night
Partly cloudy, with a low around 64.
Tuesday
Sunny, with a high near 84.
Tuesday Night
Mostly clear, with a low around 68.
Wednesday
Mostly sunny, with a high near 90.
Wednesday Night
Partly cloudy, with a low around 69.
Thursday
Mostly sunny, with a high near 83.
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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:
10:41 am CDT Aug 14, 2026
Forecast Valid:
10am CDT Aug 14, 2026-6pm CDT Aug 20, 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