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

72°F

22°C

Humidity 84%
Wind Speed Calm
Barometer 30.10 in (1019.0 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 28 Aug 7:52 pm CDT
Extended Forecast for

Williamsville IL

  • Tonight

    Tonight: Mostly clear, with a low around 61. Calm wind becoming south southeast around 5 mph after midnight.

    Low: 61 °F

    Mostly Clear

  • Saturday

    Saturday: Increasing clouds, with a high near 86. South wind 5 to 9 mph, with gusts as high as 15 mph.

    High: 86 °F

    Increasing
    Clouds

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 70. South southeast wind 7 to 10 mph, with gusts as high as 17 mph.

    Low: 70 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 92. South wind 9 to 13 mph, with gusts as high as 20 mph.

    High: 92 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 74. South wind around 9 mph, with gusts as high as 17 mph.

    Low: 74 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 96. South southwest wind around 10 mph, with gusts as high as 17 mph.

    High: 96 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 76. South wind 6 to 10 mph, with gusts as high as 16 mph.

    Low: 76 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 98.

    High: 98 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 77.

    Low: 77 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 61. Calm wind becoming south southeast around 5 mph after midnight.
Saturday
Increasing clouds, with a high near 86. South wind 5 to 9 mph, with gusts as high as 15 mph.
Saturday Night
Partly cloudy, with a low around 70. South southeast wind 7 to 10 mph, with gusts as high as 17 mph.
Sunday
Mostly sunny, with a high near 92. South wind 9 to 13 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 74. South wind around 9 mph, with gusts as high as 17 mph.
Monday
Sunny and hot, with a high near 96. South southwest wind around 10 mph, with gusts as high as 17 mph.
Monday Night
Mostly clear, with a low around 76. South wind 6 to 10 mph, with gusts as high as 16 mph.
Tuesday
Sunny and hot, with a high near 98.
Tuesday Night
Mostly clear, with a low around 77.
Wednesday
Sunny and hot, with a high near 98.
Wednesday Night
Mostly clear, with a low around 76.
Thursday
Mostly sunny and hot, with a high near 97.
Thursday Night
Partly cloudy, with a low around 75.
Friday
Mostly sunny and hot, with a high near 95.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Williamsville IL
 39.95°N 89.57°W (Elev. 564 ft)
Last Update:
7:36 pm CDT Aug 28, 2026
Forecast Valid:
8pm CDT Aug 28, 2026-6pm CDT Sep 4, 2026
 
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Additional Resources

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National Digital Forecast Database

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Chance of Precipitation