Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Overcast

20°F

-7°C

Humidity 92%
Wind Speed NW 9 mph
Barometer 30.03 in (1017.9 mb)
Dewpoint 18°F (-8°C)
Visibility 8.00 mi
Wind Chill10°F (-12°C)
Last update 2 Dec 3:54 am CST
Extended Forecast for

3 Miles WSW Forsyth IL

  • Today

    Today: Mostly cloudy, with a high near 23. Northwest wind 6 to 8 mph becoming south southwest in the afternoon.

    High: 23 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 16. Wind chill values between 4 and 10. South wind 6 to 11 mph, with gusts as high as 22 mph.

    Low: 16 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of snow before 1pm, then a chance of rain between 1pm and 3pm, then a chance of snow after 3pm.  Mostly cloudy, with a high near 34. South southwest wind 10 to 13 mph becoming west northwest in the afternoon. Winds could gust as high as 17 mph.  Chance of precipitation is 30%.

    High: 34 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

  • Wednesday Night

    Wednesday Night: Cloudy, then gradually becoming partly cloudy, with a low around 3. Wind chill values between -10 and zero. North northwest wind 10 to 13 mph, with gusts as high as 18 mph.

    Low: 3 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Sunny, with a high near 14. North northwest wind 5 to 10 mph becoming light northeast  in the afternoon. Winds could gust as high as 15 mph.

    High: 14 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 0. Calm wind becoming south 5 to 7 mph after midnight.

    Low: 0 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 28. South wind 7 to 10 mph.

    High: 28 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 16.

    Low: 16 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 29.

    High: 29 °F

    Mostly Cloudy

Detailed Forecast

Today
Mostly cloudy, with a high near 23. Northwest wind 6 to 8 mph becoming south southwest in the afternoon.
Tonight
Mostly cloudy, with a low around 16. Wind chill values between 4 and 10. South wind 6 to 11 mph, with gusts as high as 22 mph.
Wednesday
A chance of snow before 1pm, then a chance of rain between 1pm and 3pm, then a chance of snow after 3pm. Mostly cloudy, with a high near 34. South southwest wind 10 to 13 mph becoming west northwest in the afternoon. Winds could gust as high as 17 mph. Chance of precipitation is 30%.
Wednesday Night
Cloudy, then gradually becoming partly cloudy, with a low around 3. Wind chill values between -10 and zero. North northwest wind 10 to 13 mph, with gusts as high as 18 mph.
Thursday
Sunny, with a high near 14. North northwest wind 5 to 10 mph becoming light northeast in the afternoon. Winds could gust as high as 15 mph.
Thursday Night
Mostly clear, with a low around 0. Calm wind becoming south 5 to 7 mph after midnight.
Friday
Mostly sunny, with a high near 28. South wind 7 to 10 mph.
Friday Night
Mostly cloudy, with a low around 16.
Saturday
Mostly cloudy, with a high near 29.
Saturday Night
Mostly cloudy, with a low around 18.
Sunday
Mostly cloudy, with a high near 27.
Sunday Night
Mostly cloudy, with a low around 9.
Monday
Partly sunny, with a high near 29.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Forsyth IL
 39.89°N 89.02°W (Elev. 656 ft)
3:44 am CST Dec 2, 2025
4am CST Dec 2, 2025-6pm CST Dec 8, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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