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.

Thunderstorm Heavy Rain Fog/Mist

59°F

15°C

Humidity 93%
Wind Speed S 7 mph
Barometer 29.71 in (1005.6 mb)
Dewpoint 57°F (14°C)
Visibility 1.75 mi
Last update 11 Mar 1:52 am CDT
Extended Forecast for

Clear Lake IL

  • Overnight

    Overnight: Showers and thunderstorms before 4am, then showers and possibly a thunderstorm after 4am. Low around 49. West southwest wind 14 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 49 °F

    T-storms

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm before 3pm, then a slight chance of showers between 3pm and 4pm. Temperature falling to around 42 by 5pm. Breezy, with a northwest wind 13 to 21 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 59 °F⇓

    T-storms then
    Showers
    Likely and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly cloudy during the early evening, then gradual clearing, with a low around 29. Blustery, with a north northwest wind 15 to 20 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 30 mph.

    Low: 29 °F

    Decreasing
    Clouds and
    Blustery then
    Clear

  • Thursday

    Thursday: Increasing clouds, with a high near 52. West southwest wind 6 to 14 mph, with gusts as high as 22 mph.

    High: 52 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 42. Breezy, with a south wind 14 to 23 mph, with gusts as high as 36 mph.

    Low: 42 °F

    Mostly Cloudy
    and Breezy

  • Friday

    Friday: Partly sunny, with a high near 55. Breezy, with a west northwest wind 16 to 20 mph, with gusts as high as 31 mph.

    High: 55 °F

    Partly Sunny
    and Breezy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 34. Northwest wind 5 to 8 mph becoming east northeast after midnight. Winds could gust as high as 15 mph.

    Low: 34 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 57.

    High: 57 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 46.

    Low: 46 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

Overnight
Showers and thunderstorms before 4am, then showers and possibly a thunderstorm after 4am. Low around 49. West southwest wind 14 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers and possibly a thunderstorm before 3pm, then a slight chance of showers between 3pm and 4pm. Temperature falling to around 42 by 5pm. Breezy, with a northwest wind 13 to 21 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
Mostly cloudy during the early evening, then gradual clearing, with a low around 29. Blustery, with a north northwest wind 15 to 20 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 30 mph.
Thursday
Increasing clouds, with a high near 52. West southwest wind 6 to 14 mph, with gusts as high as 22 mph.
Thursday Night
Mostly cloudy, with a low around 42. Breezy, with a south wind 14 to 23 mph, with gusts as high as 36 mph.
Friday
Partly sunny, with a high near 55. Breezy, with a west northwest wind 16 to 20 mph, with gusts as high as 31 mph.
Friday Night
Mostly cloudy, with a low around 34. Northwest wind 5 to 8 mph becoming east northeast after midnight. Winds could gust as high as 15 mph.
Saturday
Mostly cloudy, with a high near 57.
Saturday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 46.
Sunday
Showers. High near 60. Breezy. Chance of precipitation is 90%.
Sunday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 21. Blustery.
Monday
Mostly sunny, with a high near 33. Breezy.
Monday Night
Partly cloudy, with a low around 17.
Tuesday
Partly sunny, with a high near 38.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Clear Lake IL
 39.84°N 89.54°W (Elev. 548 ft)
Last Update:
2:05 am CDT Mar 11, 2026
Forecast Valid:
2am CDT Mar 11, 2026-6pm CDT Mar 17, 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