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.

Overcast

71°F

22°C

Humidity 94%
Wind Speed S 5 mph
Barometer 30.03 in (1016.6 mb)
Dewpoint 69°F (21°C)
Visibility 8.00 mi
Last update 25 Jul 10:52 am CDT
Extended Forecast for

Thayer IL

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

  • Today

    Today: A 30 percent chance of showers, mainly before noon. Cloudy, then gradually becoming mostly sunny, with a high near 84. West southwest wind 5 to 7 mph.

    High: 84 °F

    Chance
    Showers

  • Tonight

    Tonight: Partly cloudy, with a low around 71. Light south wind.

    Low: 71 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 92. Heat index values as high as 107. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 92 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy during the early evening, then becoming mostly clear, with a low around 74. Calm wind becoming south southwest around 6 mph after midnight.

    Low: 74 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 96. Southwest wind 7 to 11 mph, with gusts as high as 20 mph.

    High: 96 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 75. Southwest wind 6 to 9 mph becoming west northwest after midnight. Winds could gust as high as 16 mph.

    Low: 75 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 91. North wind 6 to 9 mph, with gusts as high as 15 mph.

    High: 91 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

Detailed Forecast

Today
A 30 percent chance of showers, mainly before noon. Cloudy, then gradually becoming mostly sunny, with a high near 84. West southwest wind 5 to 7 mph.
Tonight
Partly cloudy, with a low around 71. Light south wind.
Sunday
Mostly sunny, with a high near 92. Heat index values as high as 107. Calm wind becoming southwest around 5 mph in the afternoon.
Sunday Night
Mostly cloudy during the early evening, then becoming mostly clear, with a low around 74. Calm wind becoming south southwest around 6 mph after midnight.
Monday
Sunny and hot, with a high near 96. Southwest wind 7 to 11 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 75. Southwest wind 6 to 9 mph becoming west northwest after midnight. Winds could gust as high as 16 mph.
Tuesday
Mostly sunny, with a high near 91. North wind 6 to 9 mph, with gusts as high as 15 mph.
Tuesday Night
Partly cloudy, with a low around 67.
Wednesday
Sunny, with a high near 89.
Wednesday Night
Mostly clear, with a low around 67.
Thursday
Sunny, with a high near 89.
Thursday Night
Partly cloudy, with a low around 68.
Friday
Mostly sunny, with a high near 88.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Thayer IL
 39.54°N 89.76°W (Elev. 643 ft)
Last Update:
10:36 am CDT Jul 25, 2026
Forecast Valid:
11am CDT Jul 25, 2026-6pm CDT Jul 31, 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