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.

Overcast

35°F

2°C

Humidity 40%
Wind Speed N 15 G 22 mph
Barometer 29.89 in (1012.7 mb)
Dewpoint 13°F (-11°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 26 Feb 12:54 am CST
Extended Forecast for

3 Miles WSW Forsyth IL

  • Overnight

    Overnight: A chance of rain and snow before 3am, then a slight chance of rain between 3am and 4am. Cloudy, with a low around 30. North northeast wind 6 to 8 mph. Chance of precipitation is 50%.

    Low: 30 °F

    Chance
    Rain/Snow

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 50. East northeast wind 6 to 8 mph becoming west southwest in the afternoon.

    High: 50 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 32. South southwest wind 5 to 8 mph, with gusts as high as 16 mph.

    Low: 32 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 66. Breezy, with a south southwest wind 9 to 14 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 33 mph.

    High: 66 °F

    Sunny and
    Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 33. South southwest wind 8 to 13 mph becoming north northeast after midnight. Winds could gust as high as 22 mph.

    Low: 33 °F

    Mostly Clear

  • Saturday

    Saturday: Partly sunny, with a high near 53. East northeast wind 9 to 15 mph, with gusts as high as 20 mph.

    High: 53 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 24. North northeast wind 15 to 17 mph, with gusts as high as 23 mph.

    Low: 24 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 40 percent chance of snow after noon. Mostly cloudy, with a high near 36.

    High: 36 °F

    Mostly Cloudy
    then Chance
    Snow

  • Sunday Night

    Sunday Night: Rain and snow likely before midnight, then a chance of snow. Cloudy, with a low around 22. Chance of precipitation is 60%.

    Low: 22 °F

    Rain/Snow
    Likely then
    Chance Snow

Detailed Forecast

Overnight
A chance of rain and snow before 3am, then a slight chance of rain between 3am and 4am. Cloudy, with a low around 30. North northeast wind 6 to 8 mph. Chance of precipitation is 50%.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 50. East northeast wind 6 to 8 mph becoming west southwest in the afternoon.
Thursday Night
Mostly clear, with a low around 32. South southwest wind 5 to 8 mph, with gusts as high as 16 mph.
Friday
Sunny, with a high near 66. Breezy, with a south southwest wind 9 to 14 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. South southwest wind 8 to 13 mph becoming north northeast after midnight. Winds could gust as high as 22 mph.
Saturday
Partly sunny, with a high near 53. East northeast wind 9 to 15 mph, with gusts as high as 20 mph.
Saturday Night
Mostly cloudy, with a low around 24. North northeast wind 15 to 17 mph, with gusts as high as 23 mph.
Sunday
A 40 percent chance of snow after noon. Mostly cloudy, with a high near 36.
Sunday Night
Rain and snow likely before midnight, then a chance of snow. Cloudy, with a low around 22. Chance of precipitation is 60%.
Monday
Mostly cloudy, with a high near 34.
Monday Night
A chance of rain. Mostly cloudy, with a low around 22.
Tuesday
A chance of rain. Cloudy, with a high near 39.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 27.
Wednesday
A chance of rain. Mostly cloudy, with a high near 45.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Forsyth IL
 39.89°N 89.02°W (Elev. 656 ft)
Last Update:
12:28 am CST Feb 26, 2026
Forecast Valid:
1am CST Feb 26, 2026-6pm CST Mar 4, 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