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.

Fair

48°F

9°C

Humidity 75%
Wind Speed S 13 mph
Barometer 29.97 in
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 17 Feb 1:35 am CST
Extended Forecast for

Assumption IL

  • Overnight

    Overnight: Patchy fog after 4am. Otherwise, partly cloudy, with a low around 40. South wind around 8 mph, with gusts as high as 17 mph.

    Low: 40 °F

    Patchy Fog

  • Tuesday

    Tuesday: A 20 percent chance of showers after 5pm. Patchy fog before 10am. Otherwise, cloudy, with a high near 58. South wind 8 to 16 mph, with gusts as high as 33 mph.

    High: 58 °F

    Patchy Fog
    then Slight
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers, mainly between 9pm and 3am. Cloudy, then gradually becoming partly cloudy, with a low around 53. Breezy, with a south wind 17 to 22 mph, with gusts as high as 40 mph.

    Low: 53 °F

    Chance
    Showers and
    Breezy

  • Wednesday

    Wednesday: Sunny, with a high near 68. West southwest wind 8 to 18 mph, with gusts as high as 26 mph.

    High: 68 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain after midnight. Partly cloudy, with a low around 46. South wind 5 to 8 mph.

    Low: 46 °F

    Partly Cloudy
    then Chance
    Rain

  • Thursday

    Thursday: A chance of rain before noon, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 67. South southeast wind 8 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 50%.

    High: 67 °F

    Chance Rain
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers before 9pm, then a chance of showers and thunderstorms between 9pm and midnight. Mostly clear, with a low around 34. West wind 11 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 40%.

    Low: 34 °F

    Chance
    T-storms then
    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 46. Breezy.

    High: 46 °F

    Sunny and
    Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

Detailed Forecast

Overnight
Patchy fog after 4am. Otherwise, partly cloudy, with a low around 40. South wind around 8 mph, with gusts as high as 17 mph.
Tuesday
A 20 percent chance of showers after 5pm. Patchy fog before 10am. Otherwise, cloudy, with a high near 58. South wind 8 to 16 mph, with gusts as high as 33 mph.
Tuesday Night
A 30 percent chance of showers, mainly between 9pm and 3am. Cloudy, then gradually becoming partly cloudy, with a low around 53. Breezy, with a south wind 17 to 22 mph, with gusts as high as 40 mph.
Wednesday
Sunny, with a high near 68. West southwest wind 8 to 18 mph, with gusts as high as 26 mph.
Wednesday Night
A 30 percent chance of rain after midnight. Partly cloudy, with a low around 46. South wind 5 to 8 mph.
Thursday
A chance of rain before noon, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 67. South southeast wind 8 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 50%.
Thursday Night
A chance of showers before 9pm, then a chance of showers and thunderstorms between 9pm and midnight. Mostly clear, with a low around 34. West wind 11 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 40%.
Friday
Sunny, with a high near 46. Breezy.
Friday Night
Partly cloudy, with a low around 27.
Saturday
Mostly sunny, with a high near 42.
Saturday Night
Partly cloudy, with a low around 24.
Sunday
Mostly sunny, with a high near 35.
Sunday Night
Mostly clear, with a low around 17.
Monday
Sunny, with a high near 36.
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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:
1:31 am CST Feb 17, 2026
Forecast Valid:
1am CST Feb 17, 2026-6pm CST Feb 23, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation