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 and Breezy

55°F

13°C

Humidity 83%
Wind Speed S 24 G 33 mph
Barometer 29.55 in (1000.6 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 18 Feb 3:54 am CST
Extended Forecast for

3 Miles WSW Forsyth IL

  • Overnight

    Overnight: A chance of sprinkles before 5am. Mostly cloudy, with a low around 52. South southwest wind around 18 mph, with gusts as high as 32 mph.

    Low: 52 °F

    Chance
    Sprinkles

  • Wednesday

    Wednesday: Sunny, with a high near 67. West wind 11 to 18 mph, with gusts as high as 30 mph.

    High: 67 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 46. Southwest wind 7 to 9 mph becoming south southeast after midnight.

    Low: 46 °F

    Increasing
    Clouds

  • Thursday

    Thursday: A chance of showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 67. South southeast wind 8 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 67 °F

    Chance
    Showers then
    Showers
    Likely

  • Thursday Night

    Thursday Night: A 30 percent chance of showers before midnight. Partly cloudy, with a low around 33. Breezy, with a south southwest wind 14 to 23 mph becoming west after midnight. Winds could gust as high as 31 mph.

    Low: 33 °F

    Chance
    Showers then
    Partly Cloudy
    and Breezy

  • Friday

    Friday: Mostly sunny, with a high near 44. Breezy, with a west wind 14 to 23 mph, with gusts as high as 32 mph.

    High: 44 °F

    Mostly Sunny
    and Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 25. Northwest wind 7 to 11 mph, with gusts as high as 16 mph.

    Low: 25 °F

    Mostly Clear

  • Saturday

    Saturday: A 30 percent chance of snow after noon. Mostly sunny, with a high near 38.

    High: 38 °F

    Partly Sunny
    then Chance
    Snow

  • Saturday Night

    Saturday Night: A 30 percent chance of snow before midnight. Partly cloudy, with a low around 21.

    Low: 21 °F

    Chance Snow
    then Partly
    Cloudy

Detailed Forecast

Overnight
A chance of sprinkles before 5am. Mostly cloudy, with a low around 52. South southwest wind around 18 mph, with gusts as high as 32 mph.
Wednesday
Sunny, with a high near 67. West wind 11 to 18 mph, with gusts as high as 30 mph.
Wednesday Night
Increasing clouds, with a low around 46. Southwest wind 7 to 9 mph becoming south southeast after midnight.
Thursday
A chance of showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 67. South southeast wind 8 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A 30 percent chance of showers before midnight. Partly cloudy, with a low around 33. Breezy, with a south southwest wind 14 to 23 mph becoming west after midnight. Winds could gust as high as 31 mph.
Friday
Mostly sunny, with a high near 44. Breezy, with a west wind 14 to 23 mph, with gusts as high as 32 mph.
Friday Night
Mostly clear, with a low around 25. Northwest wind 7 to 11 mph, with gusts as high as 16 mph.
Saturday
A 30 percent chance of snow after noon. Mostly sunny, with a high near 38.
Saturday Night
A 30 percent chance of snow before midnight. Partly cloudy, with a low around 21.
Sunday
Mostly sunny, with a high near 33. Breezy.
Sunday Night
Mostly clear, with a low around 16.
Monday
Sunny, with a high near 33.
Monday Night
Mostly clear, with a low around 17.
Tuesday
Mostly sunny, with a high near 41.
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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:
3:36 am CST Feb 18, 2026
Forecast Valid:
4am CST Feb 18, 2026-6pm CST Feb 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation