Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

43°F

6°C

Humidity 60%
Wind Speed S 3 mph
Barometer 30.06 in (1018.5 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 14 Feb 10:54 am CST
Extended Forecast for

3 Miles WSW Forsyth IL

  • Today

    Today: A 50 percent chance of rain, mainly after 1pm.  Cloudy, with a high near 48. South southeast wind 5 to 8 mph, with gusts as high as 16 mph.

    High: 48 °F

    Chance Rain

  • Tonight

    Tonight: Rain, mainly before 5am.  Patchy fog after 4am. Low around 41. South southeast wind 7 to 9 mph becoming northeast after midnight. Winds could gust as high as 20 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 41 °F

    Rain and
    Patchy Fog

  • Sunday

    Sunday: Patchy fog before 11am.  Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 59. Northeast wind 7 to 9 mph becoming west northwest in the afternoon.

    High: 59 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 37. Light and variable wind becoming south southwest around 6 mph after midnight.

    Low: 37 °F

    Mostly Clear

  • Washington's Birthday

    Washington's Birthday: Partly sunny, with a high near 60. South wind 6 to 14 mph, with gusts as high as 21 mph.

    High: 60 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 43. South wind around 10 mph, with gusts as high as 17 mph.

    Low: 43 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 61. Breezy, with a south wind 10 to 20 mph, with gusts as high as 28 mph.

    High: 61 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 52. Breezy.

    Low: 52 °F

    Mostly Cloudy
    and Breezy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 66. Breezy.

    High: 66 °F

    Mostly Sunny
    and Breezy

Detailed Forecast

Today
A 50 percent chance of rain, mainly after 1pm. Cloudy, with a high near 48. South southeast wind 5 to 8 mph, with gusts as high as 16 mph.
Tonight
Rain, mainly before 5am. Patchy fog after 4am. Low around 41. South southeast wind 7 to 9 mph becoming northeast after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
Patchy fog before 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 59. Northeast wind 7 to 9 mph becoming west northwest in the afternoon.
Sunday Night
Mostly clear, with a low around 37. Light and variable wind becoming south southwest around 6 mph after midnight.
Washington's Birthday
Partly sunny, with a high near 60. South wind 6 to 14 mph, with gusts as high as 21 mph.
Monday Night
Mostly cloudy, with a low around 43. South wind around 10 mph, with gusts as high as 17 mph.
Tuesday
Mostly cloudy, with a high near 61. Breezy, with a south wind 10 to 20 mph, with gusts as high as 28 mph.
Tuesday Night
Mostly cloudy, with a low around 52. Breezy.
Wednesday
Mostly sunny, with a high near 66. Breezy.
Wednesday Night
Partly cloudy, with a low around 38.
Thursday
A chance of rain. Partly sunny, with a high near 60.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 36.
Friday
Partly sunny, with a high near 50.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Forsyth IL
 39.89°N 89.02°W (Elev. 656 ft)
11:37 am CST Feb 14, 2026
11am CST Feb 14, 2026-6pm CST Feb 20, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database