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

35°F

2°C

Humidity 76%
Wind Speed S 8 mph
Barometer 30.05 in (1018.2 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill28°F (-2°C)
Last update 12 Jan 10:52 pm CST
Extended Forecast for

Clear Lake IL

  • Tonight

    Tonight: Partly cloudy, with a low around 34. South southwest wind 7 to 10 mph, with gusts as high as 21 mph.

    Low: 34 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 54. West wind 11 to 16 mph, with gusts as high as 26 mph.

    High: 54 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 35. West wind 8 to 14 mph, with gusts as high as 24 mph.

    Low: 35 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a temperature falling to around 28 by 5pm. Breezy, with a north northwest wind 15 to 23 mph, with gusts as high as 34 mph.

    High: 36 °F⇓

    Mostly Cloudy
    and Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 15. North northwest wind 10 to 17 mph, with gusts as high as 29 mph.

    Low: 15 °F

    Mostly Clear

  • Thursday

    Thursday: Increasing clouds, with a high near 29. Northwest wind 7 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 16 mph.

    High: 29 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 22. South southwest wind 6 to 13 mph, with gusts as high as 22 mph.

    Low: 22 °F

    Chance Snow

  • Friday

    Friday: A 30 percent chance of snow after noon. Mostly cloudy, with a high near 38.

    High: 38 °F

    Mostly Cloudy
    then Chance
    Snow

  • Friday Night

    Friday Night: A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 15.

    Low: 15 °F

    Chance Snow
    then Mostly
    Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 34. South southwest wind 7 to 10 mph, with gusts as high as 21 mph.
Tuesday
Partly sunny, with a high near 54. West wind 11 to 16 mph, with gusts as high as 26 mph.
Tuesday Night
Mostly cloudy, with a low around 35. West wind 8 to 14 mph, with gusts as high as 24 mph.
Wednesday
Mostly cloudy, with a temperature falling to around 28 by 5pm. Breezy, with a north northwest wind 15 to 23 mph, with gusts as high as 34 mph.
Wednesday Night
Mostly clear, with a low around 15. North northwest wind 10 to 17 mph, with gusts as high as 29 mph.
Thursday
Increasing clouds, with a high near 29. Northwest wind 7 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 16 mph.
Thursday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 22. South southwest wind 6 to 13 mph, with gusts as high as 22 mph.
Friday
A 30 percent chance of snow after noon. Mostly cloudy, with a high near 38.
Friday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 15.
Saturday
Mostly cloudy, with a high near 23.
Saturday Night
Mostly cloudy, with a low around 6.
Sunday
Mostly sunny, with a high near 21.
Sunday Night
Partly cloudy, with a low around 9.
M.L.King Day
Mostly sunny, with a high near 29.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Clear Lake IL
 39.82°N 89.57°W (Elev. 554 ft)
Last Update:
9:36 pm CST Jan 12, 2026
Forecast Valid:
11pm CST Jan 12, 2026-6pm CST Jan 19, 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