Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

43°F

6°C

Humidity 74%
Wind Speed S 7 mph
Barometer 29.89 in (1012.4 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 26 Feb 7:54 pm CST
Extended Forecast for

4 Miles N Forsyth IL

  • Tonight

    Tonight: Mostly clear, with a low around 30. South wind around 6 mph.

    Low: 30 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 66. Breezy, with a southwest wind 7 to 12 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 33 mph.

    High: 66 °F

    Sunny then
    Sunny and
    Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 33. Southwest wind 9 to 15 mph becoming north northeast after midnight. Winds could gust as high as 24 mph.

    Low: 33 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 51. East northeast wind 9 to 14 mph, with gusts as high as 20 mph.

    High: 51 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 24. North northeast wind 14 to 16 mph, with gusts as high as 23 mph.

    Low: 24 °F

    Partly Cloudy

  • Sunday

    Sunday: A 30 percent chance of snow after noon.  Mostly cloudy, with a high near 38. Northeast wind around 15 mph, with gusts as high as 22 mph.

    High: 38 °F

    Mostly Cloudy
    then Chance
    Snow

  • Sunday Night

    Sunday Night: Snow likely, mainly before midnight.  Mostly cloudy, with a low around 23. East northeast wind around 14 mph, with gusts as high as 20 mph.  Chance of precipitation is 60%.

    Low: 23 °F

    Snow Likely

  • Monday

    Monday: Partly sunny, with a high near 38.

    High: 38 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 30 percent chance of snow after midnight.  Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy
    then Chance
    Snow

Detailed Forecast

Tonight
Mostly clear, with a low around 30. South wind around 6 mph.
Friday
Sunny, with a high near 66. Breezy, with a southwest wind 7 to 12 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 33 mph.
Friday Night
Mostly clear, with a low around 33. Southwest wind 9 to 15 mph becoming north northeast after midnight. Winds could gust as high as 24 mph.
Saturday
Mostly sunny, with a high near 51. East northeast wind 9 to 14 mph, with gusts as high as 20 mph.
Saturday Night
Partly cloudy, with a low around 24. North northeast wind 14 to 16 mph, with gusts as high as 23 mph.
Sunday
A 30 percent chance of snow after noon. Mostly cloudy, with a high near 38. Northeast wind around 15 mph, with gusts as high as 22 mph.
Sunday Night
Snow likely, mainly before midnight. Mostly cloudy, with a low around 23. East northeast wind around 14 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Monday
Partly sunny, with a high near 38.
Monday Night
A 30 percent chance of snow after midnight. Mostly cloudy, with a low around 26.
Tuesday
A 50 percent chance of rain. Cloudy, with a high near 41.
Tuesday Night
Rain likely. Mostly cloudy, with a low around 31.
Wednesday
Rain likely. Cloudy, with a high near 51.
Wednesday Night
Rain likely. Cloudy, with a low around 43.
Thursday
Rain likely. Mostly cloudy, with a high near 61.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Forsyth IL
 39.97°N 88.96°W (Elev. 679 ft)
7:32 pm CST Feb 26, 2026
8pm CST Feb 26, 2026-6pm CST Mar 5, 2026
 
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