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.

Mostly Cloudy

74°F

23°C

Humidity 94%
Wind Speed SE 5 mph
Barometer 29.95 in (1013.6 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Last update 26 Jul 1:52 am CDT
Extended Forecast for

Clear Lake IL

Extreme Heat Warning July 26, 12:00pm until July 27, 09:00pm
Click here for hazard details and duration
Extreme Heat Warning

  • Overnight

    Overnight: Mostly cloudy, with a low around 73. Light south southeast wind.

    Low: 73 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms, mainly before 11am. Partly sunny, with a high near 91. Heat index values as high as 108. Light and variable wind becoming south southwest 5 to 7 mph in the morning.

    High: 91 °F

    Chance
    T-storms then
    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 76. South southwest wind 5 to 7 mph.

    Low: 76 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 94. Heat index values as high as 110. South southwest wind 6 to 11 mph, with gusts as high as 18 mph.

    High: 94 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 76. Southwest wind 7 to 10 mph becoming northwest after midnight. Winds could gust as high as 18 mph.

    Low: 76 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 89. North wind 7 to 10 mph, with gusts as high as 16 mph.

    High: 89 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 66. North northeast wind 5 to 7 mph becoming calm after midnight.

    Low: 66 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 63.

    Low: 63 °F

    Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 73. Light south southeast wind.
Sunday
A 40 percent chance of showers and thunderstorms, mainly before 11am. Partly sunny, with a high near 91. Heat index values as high as 108. Light and variable wind becoming south southwest 5 to 7 mph in the morning.
Sunday Night
Partly cloudy, with a low around 76. South southwest wind 5 to 7 mph.
Monday
Sunny, with a high near 94. Heat index values as high as 110. South southwest wind 6 to 11 mph, with gusts as high as 18 mph.
Monday Night
Partly cloudy, with a low around 76. Southwest wind 7 to 10 mph becoming northwest after midnight. Winds could gust as high as 18 mph.
Tuesday
Mostly sunny, with a high near 89. North wind 7 to 10 mph, with gusts as high as 16 mph.
Tuesday Night
Mostly clear, with a low around 66. North northeast wind 5 to 7 mph becoming calm after midnight.
Wednesday
Sunny, with a high near 86.
Wednesday Night
Clear, with a low around 63.
Thursday
Sunny, with a high near 87.
Thursday Night
Partly cloudy, with a low around 66.
Friday
A chance of showers. Partly sunny, with a high near 85.
Friday Night
Partly cloudy, with a low around 67.
Saturday
Sunny, with a high near 86.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Clear Lake IL
 39.82°N 89.57°W (Elev. 554 ft)
Last Update:
1:26 am CDT Jul 26, 2026
Forecast Valid:
2am CDT Jul 26, 2026-6pm CDT Aug 1, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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