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

Hazardous Weather Conditions

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

A Few Clouds

79°F

26°C

Humidity 77%
Wind Speed S 9 mph
Barometer 30.08 in (1018.0 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 7 Aug 9:54 am CDT
Extended Forecast for

Taylorville IL

  • Today

    Today: Mostly sunny, with a high near 85. Southwest wind around 7 mph.

    High: 85 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 69. South southwest wind 5 to 9 mph becoming west after midnight. Winds could gust as high as 15 mph.

    Low: 69 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 86. West wind 5 to 7 mph.

    High: 86 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 67. Light and variable wind.

    Low: 67 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 89. South wind 5 to 10 mph, with gusts as high as 17 mph.

    High: 89 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 73. South wind around 9 mph, with gusts as high as 15 mph.

    Low: 73 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 91. South southwest wind 8 to 11 mph, with gusts as high as 20 mph.

    High: 91 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 74.

    Low: 74 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 89.

    High: 89 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 85. Southwest wind around 7 mph.
Tonight
Mostly clear, with a low around 69. South southwest wind 5 to 9 mph becoming west after midnight. Winds could gust as high as 15 mph.
Saturday
Mostly sunny, with a high near 86. West wind 5 to 7 mph.
Saturday Night
Mostly clear, with a low around 67. Light and variable wind.
Sunday
Mostly sunny, with a high near 89. South wind 5 to 10 mph, with gusts as high as 17 mph.
Sunday Night
Mostly clear, with a low around 73. South wind around 9 mph, with gusts as high as 15 mph.
Monday
Sunny, with a high near 91. South southwest wind 8 to 11 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 74.
Tuesday
Mostly sunny, with a high near 89.
Tuesday Night
Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 70. Chance of precipitation is 60%.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 85.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67.
Thursday
A chance of showers. Partly sunny, with a high near 81.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Taylorville IL
 39.52°N 89.27°W (Elev. 614 ft)
Last Update:
8:51 am CDT Aug 7, 2026
Forecast Valid:
10am CDT Aug 7, 2026-6pm CDT Aug 13, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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