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

Hazardous Weather Conditions

Current conditions at

Taylorville, Taylorville Municipal Airport (KTAZ)

Lat: 39.53°NLon: 89.33°WElev: 623ft.

Mostly Cloudy

70°F

21°C

Humidity 57%
Wind Speed S 13 mph
Barometer 29.59 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 4 May 8:19 pm CDT
Extended Forecast for

Assumption IL

  • Tonight

    Tonight: Showers and thunderstorms likely before 10pm, then showers likely and possibly a thunderstorm between 10pm and 3am, then a chance of showers and thunderstorms after 3am. Mostly cloudy, with a low around 54. South southwest wind 8 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 54 °F

    T-storms
    Likely then
    Showers
    Likely

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm before 10am, then showers likely between 10am and 4pm, then showers likely and possibly a thunderstorm after 4pm. Cloudy, with a high near 57. North northeast wind 8 to 13 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 57 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 43. North northeast wind 9 to 11 mph, with gusts as high as 17 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 43 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Partly sunny, with a high near 56. North wind 8 to 10 mph, with gusts as high as 15 mph.

    High: 56 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 39. North wind around 7 mph.

    Low: 39 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 61. West wind 5 to 10 mph, with gusts as high as 17 mph.

    High: 61 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 44. South southwest wind 6 to 8 mph.

    Low: 44 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of showers before 1am. Partly cloudy, with a low around 46.

    Low: 46 °F

    Chance
    Showers

Detailed Forecast

Tonight
Showers and thunderstorms likely before 10pm, then showers likely and possibly a thunderstorm between 10pm and 3am, then a chance of showers and thunderstorms after 3am. Mostly cloudy, with a low around 54. South southwest wind 8 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday
Showers likely and possibly a thunderstorm before 10am, then showers likely between 10am and 4pm, then showers likely and possibly a thunderstorm after 4pm. Cloudy, with a high near 57. North northeast wind 8 to 13 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 43. North northeast wind 9 to 11 mph, with gusts as high as 17 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
Partly sunny, with a high near 56. North wind 8 to 10 mph, with gusts as high as 15 mph.
Wednesday Night
Partly cloudy, with a low around 39. North wind around 7 mph.
Thursday
Mostly sunny, with a high near 61. West wind 5 to 10 mph, with gusts as high as 17 mph.
Thursday Night
Mostly clear, with a low around 44. South southwest wind 6 to 8 mph.
Friday
Mostly sunny, with a high near 68.
Friday Night
A 30 percent chance of showers before 1am. Partly cloudy, with a low around 46.
Saturday
Sunny, with a high near 73.
Saturday Night
Partly cloudy, with a low around 52.
Sunday
A chance of showers. Partly sunny, with a high near 70.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 49.
Monday
Mostly sunny, with a high near 68.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Assumption IL
 39.51°N 89.05°W (Elev. 636 ft)
Last Update:
7:36 pm CDT May 4, 2026
Forecast Valid:
8pm CDT May 4, 2026-6pm CDT May 11, 2026
 
Forecast Discussion
 
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Additional Resources

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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