National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Taylorville, Taylorville Municipal Airport (KTAZ)

Lat: 39.53°NLon: 89.33°WElev: 623ft.

Fog/Mist

35°F

2°C

Humidity 97%
Wind Speed S 3 mph
Barometer 30.00 in
Dewpoint 34°F (1°C)
Visibility 1.50 mi
Last update 7 Dec 8:15 am CST
Extended Forecast for

Assumption IL

  • Today

    Today: Areas of fog before 4pm. Otherwise, cloudy, with a high near 34. South wind 5 to 14 mph becoming north in the afternoon. Winds could gust as high as 24 mph.

    High: 34 °F

    Areas Fog

  • Tonight

    Tonight: Mostly cloudy, with a low around 17. North wind 7 to 11 mph, with gusts as high as 20 mph.

    Low: 17 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 29. North northeast wind around 6 mph becoming calm in the morning.

    High: 29 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Partly cloudy, with a low around 19. Light south southeast wind becoming south southwest 9 to 14 mph in the evening. Winds could gust as high as 22 mph.

    Low: 19 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 44. South southwest wind 11 to 14 mph, with gusts as high as 22 mph.

    High: 44 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 37. Southwest wind 13 to 18 mph, with gusts as high as 29 mph.

    Low: 37 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 42. West northwest wind 10 to 18 mph, with gusts as high as 26 mph.

    High: 42 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 24.

    Low: 24 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 30 percent chance of snow. Mostly cloudy, with a high near 31.

    High: 31 °F

    Chance Snow

Detailed Forecast

Today
Areas of fog before 4pm. Otherwise, cloudy, with a high near 34. South wind 5 to 14 mph becoming north in the afternoon. Winds could gust as high as 24 mph.
Tonight
Mostly cloudy, with a low around 17. North wind 7 to 11 mph, with gusts as high as 20 mph.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 29. North northeast wind around 6 mph becoming calm in the morning.
Monday Night
Partly cloudy, with a low around 19. Light south southeast wind becoming south southwest 9 to 14 mph in the evening. Winds could gust as high as 22 mph.
Tuesday
Partly sunny, with a high near 44. South southwest wind 11 to 14 mph, with gusts as high as 22 mph.
Tuesday Night
Mostly cloudy, with a low around 37. Southwest wind 13 to 18 mph, with gusts as high as 29 mph.
Wednesday
Mostly cloudy, with a high near 42. West northwest wind 10 to 18 mph, with gusts as high as 26 mph.
Wednesday Night
Mostly cloudy, with a low around 24.
Thursday
A 30 percent chance of snow. Mostly cloudy, with a high near 31.
Thursday Night
Mostly cloudy, with a low around 12.
Friday
Mostly sunny, with a high near 21.
Friday Night
Mostly cloudy, with a low around 2.
Saturday
Partly sunny, with a high near 15.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Assumption IL
 39.51°N 89.05°W (Elev. 636 ft)
Last Update:
4:57 am CST Dec 7, 2025
Forecast Valid:
8am CST Dec 7, 2025-6pm CST Dec 13, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation