Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

A Few Clouds

54°F

12°C

Humidity 83%
Wind Speed E 6 mph
Barometer 30.30 in (1026.2 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Wind Chill52°F (11°C)
Last update 30 Oct 10:54 pm CDT
Extended Forecast for

Taylorville IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 55. East southeast wind 5 to 7 mph.

    Low: 55 °F

    Mostly Cloudy

  • Saturday

    Saturday: Cloudy, with a high near 71. East southeast wind around 7 mph.

    High: 71 °F

    Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 55. East southeast wind 3 to 5 mph.

    Low: 55 °F

    Mostly Cloudy

  • Sunday

    Sunday: Showers likely, mainly between 7am and 1pm.  Mostly cloudy, with a high near 66. East southeast wind 5 to 9 mph, with gusts as high as 15 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 66 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 51. Southeast wind around 7 mph.

    Low: 51 °F

    Mostly Cloudy

  • Monday

    Monday: A 40 percent chance of showers.  Cloudy, with a high near 68. South southeast wind 8 to 13 mph, with gusts as high as 20 mph.

    High: 68 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A 40 percent chance of showers after 1am.  Mostly cloudy, with a low around 58. South southeast wind 13 to 17 mph, with gusts as high as 21 mph.

    Low: 58 °F

    Cloudy then
    Chance
    Showers

  • Tuesday

    Tuesday: Showers likely.  Mostly cloudy, with a high near 71. Breezy.  Chance of precipitation is 70%.

    High: 71 °F

    Showers
    Likely and
    Breezy

  • Tuesday Night

    Tuesday Night: Showers likely, mainly before 1am.  Mostly cloudy, with a low around 54. Chance of precipitation is 60%.

    Low: 54 °F

    Showers
    Likely

Detailed Forecast

Tonight
Mostly cloudy, with a low around 55. East southeast wind 5 to 7 mph.
Saturday
Cloudy, with a high near 71. East southeast wind around 7 mph.
Saturday Night
Mostly cloudy, with a low around 55. East southeast wind 3 to 5 mph.
Sunday
Showers likely, mainly between 7am and 1pm. Mostly cloudy, with a high near 66. East southeast wind 5 to 9 mph, with gusts as high as 15 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
Mostly cloudy, with a low around 51. Southeast wind around 7 mph.
Monday
A 40 percent chance of showers. Cloudy, with a high near 68. South southeast wind 8 to 13 mph, with gusts as high as 20 mph.
Monday Night
A 40 percent chance of showers after 1am. Mostly cloudy, with a low around 58. South southeast wind 13 to 17 mph, with gusts as high as 21 mph.
Tuesday
Showers likely. Mostly cloudy, with a high near 71. Breezy. Chance of precipitation is 70%.
Tuesday Night
Showers likely, mainly before 1am. Mostly cloudy, with a low around 54. Chance of precipitation is 60%.
Wednesday
Showers likely, mainly before 1pm. Mostly cloudy, with a high near 68. Chance of precipitation is 60%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 49.
Thursday
A chance of showers. Mostly cloudy, with a high near 65.
Thursday Night
Mostly cloudy, with a low around 44.
Friday
Mostly sunny, with a high near 62.
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ABOUT THIS FORECAST

 
Point Forecast:
Taylorville IL
 39.5°N 89.25°W (Elev. 591 ft)
11:21 pm CDT Oct 30, 2026
11pm CDT Oct 30, 2026-6pm CST Nov 6, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database