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

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

69°F

21°C

Humidity 51%
Wind Speed S 15 mph
Barometer 29.74 in (1006.5 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 21 Mar 11:54 pm CDT
Extended Forecast for

4 Miles N Forsyth IL

  • Overnight

    Overnight: Mostly clear, with a low around 61. South southwest wind around 14 mph, with gusts as high as 23 mph.

    Low: 61 °F

    Mostly Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 77. Breezy, with a southwest wind 13 to 18 mph becoming north northeast 19 to 24 mph in the afternoon. Winds could gust as high as 32 mph.

    High: 77 °F

    Partly Sunny
    then Mostly
    Cloudy and
    Breezy

  • Sunday Night

    Sunday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 32. Breezy, with a north wind 14 to 23 mph, with gusts as high as 34 mph.

    Low: 32 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Clear

  • Monday

    Monday: Mostly sunny, with a high near 52. North northeast wind around 11 mph, with gusts as high as 16 mph.

    High: 52 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 33. East wind around 8 mph.

    Low: 33 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 60. South wind 8 to 10 mph, with gusts as high as 15 mph.

    High: 60 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 42. South southeast wind 7 to 9 mph.

    Low: 42 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 66.

    High: 66 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 51.

    Low: 51 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 61. South southwest wind around 14 mph, with gusts as high as 23 mph.
Sunday
Increasing clouds, with a high near 77. Breezy, with a southwest wind 13 to 18 mph becoming north northeast 19 to 24 mph in the afternoon. Winds could gust as high as 32 mph.
Sunday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 32. Breezy, with a north wind 14 to 23 mph, with gusts as high as 34 mph.
Monday
Mostly sunny, with a high near 52. North northeast wind around 11 mph, with gusts as high as 16 mph.
Monday Night
Mostly cloudy, with a low around 33. East wind around 8 mph.
Tuesday
Mostly sunny, with a high near 60. South wind 8 to 10 mph, with gusts as high as 15 mph.
Tuesday Night
Mostly cloudy, with a low around 42. South southeast wind 7 to 9 mph.
Wednesday
Partly sunny, with a high near 66.
Wednesday Night
Mostly cloudy, with a low around 51.
Thursday
Mostly sunny, with a high near 76.
Thursday Night
A chance of rain. Partly cloudy, with a low around 38.
Friday
A chance of rain. Partly sunny, with a high near 51.
Friday Night
Partly cloudy, with a low around 32.
Saturday
Mostly sunny, with a high near 54.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Forsyth IL
 39.97°N 88.96°W (Elev. 679 ft)
Last Update:
12:01 am CDT Mar 22, 2026
Forecast Valid:
12am CDT Mar 22, 2026-6pm CDT Mar 28, 2026
 
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Additional Resources

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