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

76°F

24°C

Humidity 47%
Wind Speed S 13 mph
Barometer 29.94 in (1013.5 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 17 Oct 11:52 am CDT
Extended Forecast for

Thayer IL

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 81. South wind around 15 mph, with gusts as high as 21 mph.

    High: 81 °F

    Partly Sunny

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 63. South southeast wind around 11 mph, with gusts as high as 20 mph.

    Low: 63 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Saturday

    Saturday: A slight chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7am. High near 76. South southwest wind 10 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 76 °F

    Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm before 1am, then showers likely. Low around 46. South southwest wind 8 to 17 mph becoming west northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.

    Low: 46 °F

    Showers

  • Sunday

    Sunday: Partly sunny, then gradually becoming sunny, with a high near 61. Breezy, with a west northwest wind 16 to 20 mph, with gusts as high as 28 mph.

    High: 61 °F

    Becoming
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Clear, with a low around 41. West wind 5 to 7 mph becoming south southwest after midnight.

    Low: 41 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 70. South wind 9 to 18 mph, with gusts as high as 25 mph.

    High: 70 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 81. South wind around 15 mph, with gusts as high as 21 mph.
Tonight
A 20 percent chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 63. South southeast wind around 11 mph, with gusts as high as 20 mph.
Saturday
A slight chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7am. High near 76. South southwest wind 10 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday Night
Showers and possibly a thunderstorm before 1am, then showers likely. Low around 46. South southwest wind 8 to 17 mph becoming west northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.
Sunday
Partly sunny, then gradually becoming sunny, with a high near 61. Breezy, with a west northwest wind 16 to 20 mph, with gusts as high as 28 mph.
Sunday Night
Clear, with a low around 41. West wind 5 to 7 mph becoming south southwest after midnight.
Monday
Sunny, with a high near 70. South wind 9 to 18 mph, with gusts as high as 25 mph.
Monday Night
Mostly clear, with a low around 46.
Tuesday
Sunny, with a high near 62.
Tuesday Night
Clear, with a low around 38.
Wednesday
Sunny, with a high near 64.
Wednesday Night
A chance of showers. Partly cloudy, with a low around 44.
Thursday
Mostly sunny, with a high near 64.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Thayer IL
 39.51°N 89.76°W (Elev. 659 ft)
Last Update:
10:36 am CDT Oct 17, 2025
Forecast Valid:
12pm CDT Oct 17, 2025-6pm CDT Oct 23, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation