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

Hazardous Weather Conditions

Current conditions at

Springfield - Abraham Lincoln Capital Airport (KSPI)

Lat: 39.85°NLon: 89.68°WElev: 587ft.

Fog/Mist

52°F

11°C

Humidity 93%
Wind Speed Calm
Barometer 29.99 in (1015.7 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 5 Mar 4:52 pm CST
Extended Forecast for

Clear Lake IL

  • Tonight

    Tonight: A chance of showers, with thunderstorms also possible after 3am. Patchy fog. Otherwise, mostly cloudy, with a low around 51. Calm wind becoming south southeast 5 to 9 mph in the evening. Winds could gust as high as 16 mph. Chance of precipitation is 50%.

    Low: 51 °F

    Patchy Fog
    then Chance
    Showers and
    Areas Fog

  • Friday

    Friday: A chance of showers and thunderstorms before 1pm, then a slight chance of showers between 1pm and 5pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 77. South wind 10 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 50%.

    High: 77 °F

    Chance
    T-storms and
    Patchy Fog
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: A slight chance of showers before 9pm, then a slight chance of showers and thunderstorms between 9pm and midnight, then showers and possibly a thunderstorm after midnight. Low around 57. South wind 14 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 57 °F

    Slight Chance
    T-storms then
    Showers

  • Saturday

    Saturday: A 50 percent chance of showers before noon. Cloudy, then gradually becoming mostly sunny, with a high near 66. South southwest wind 11 to 17 mph becoming west northwest in the afternoon. Winds could gust as high as 26 mph.

    High: 66 °F

    Chance
    Showers then
    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 37. West northwest wind 5 to 9 mph, with gusts as high as 17 mph.

    Low: 37 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 64. Southwest wind 6 to 13 mph, with gusts as high as 20 mph.

    High: 64 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 47. South southwest wind around 10 mph, with gusts as high as 20 mph.

    Low: 47 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Monday Night

    Monday Night: A 30 percent chance of showers after midnight. Partly cloudy, with a low around 57.

    Low: 57 °F

    Mostly Clear
    then Chance
    Showers

Detailed Forecast

Tonight
A chance of showers, with thunderstorms also possible after 3am. Patchy fog. Otherwise, mostly cloudy, with a low around 51. Calm wind becoming south southeast 5 to 9 mph in the evening. Winds could gust as high as 16 mph. Chance of precipitation is 50%.
Friday
A chance of showers and thunderstorms before 1pm, then a slight chance of showers between 1pm and 5pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 77. South wind 10 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 50%.
Friday Night
A slight chance of showers before 9pm, then a slight chance of showers and thunderstorms between 9pm and midnight, then showers and possibly a thunderstorm after midnight. Low around 57. South wind 14 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
A 50 percent chance of showers before noon. Cloudy, then gradually becoming mostly sunny, with a high near 66. South southwest wind 11 to 17 mph becoming west northwest in the afternoon. Winds could gust as high as 26 mph.
Saturday Night
Partly cloudy, with a low around 37. West northwest wind 5 to 9 mph, with gusts as high as 17 mph.
Sunday
Sunny, with a high near 64. Southwest wind 6 to 13 mph, with gusts as high as 20 mph.
Sunday Night
Clear, with a low around 47. South southwest wind around 10 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 75.
Monday Night
A 30 percent chance of showers after midnight. Partly cloudy, with a low around 57.
Tuesday
A chance of showers, then showers and possibly a thunderstorm after noon. High near 77. Chance of precipitation is 80%.
Tuesday Night
Showers. Mostly cloudy, with a low around 51.
Wednesday
Showers likely. Mostly cloudy, with a high near 62.
Wednesday Night
Partly cloudy, with a low around 31.
Thursday
Sunny, with a high near 52.
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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:
5:35 pm CST Mar 5, 2026
Forecast Valid:
5pm CST Mar 5, 2026-6pm CDT Mar 12, 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