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

41°F

5°C

Humidity 76%
Wind Speed W 15 G 28 mph
Barometer 29.69 in (1005.4 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 14 Jan 3:54 am CST
Extended Forecast for

4 Miles N Forsyth IL

  • Today

    Today: Scattered flurries with isolated snow showers before 10am, then scattered flurries between 10am and 1pm. Cloudy, then gradually becoming mostly sunny, with a temperature falling to around 24 by 5pm. Breezy, with a north northwest wind 16 to 25 mph, with gusts as high as 36 mph. Chance of precipitation is 20%.

    High: 36 °F⇓

    Breezy.
    Isolated Snow
    Showers then
    Scattered
    Flurries

  • Tonight

    Tonight: Mostly clear, with a low around 15. Wind chill values between 2 and 9. North northwest wind 13 to 17 mph, with gusts as high as 29 mph.

    Low: 15 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 28. Wind chill values between 2 and 12. Northwest wind 9 to 11 mph becoming south southwest in the afternoon. Winds could gust as high as 17 mph.

    High: 28 °F

    Sunny

  • Thursday Night

    Thursday Night: Snow likely. Mostly cloudy, with a temperature rising to around 30 by 5am. South southwest wind 10 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    Low: 24 °F⇑

    Snow Likely

  • Friday

    Friday: Mostly cloudy, with a high near 38. Breezy, with a west wind 15 to 22 mph, with gusts as high as 29 mph.

    High: 38 °F

    Mostly Cloudy
    and Breezy

  • Friday Night

    Friday Night: A 30 percent chance of snow showers before midnight. Mostly cloudy, with a low around 14. West northwest wind 14 to 18 mph, with gusts as high as 23 mph.

    Low: 14 °F

    Chance Snow
    Showers then
    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 20. West northwest wind 14 to 18 mph, with gusts as high as 24 mph.

    High: 20 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 5.

    Low: 5 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 19.

    High: 19 °F

    Partly Sunny

Detailed Forecast

Today
Scattered flurries with isolated snow showers before 10am, then scattered flurries between 10am and 1pm. Cloudy, then gradually becoming mostly sunny, with a temperature falling to around 24 by 5pm. Breezy, with a north northwest wind 16 to 25 mph, with gusts as high as 36 mph. Chance of precipitation is 20%.
Tonight
Mostly clear, with a low around 15. Wind chill values between 2 and 9. North northwest wind 13 to 17 mph, with gusts as high as 29 mph.
Thursday
Sunny, with a high near 28. Wind chill values between 2 and 12. Northwest wind 9 to 11 mph becoming south southwest in the afternoon. Winds could gust as high as 17 mph.
Thursday Night
Snow likely. Mostly cloudy, with a temperature rising to around 30 by 5am. South southwest wind 10 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Friday
Mostly cloudy, with a high near 38. Breezy, with a west wind 15 to 22 mph, with gusts as high as 29 mph.
Friday Night
A 30 percent chance of snow showers before midnight. Mostly cloudy, with a low around 14. West northwest wind 14 to 18 mph, with gusts as high as 23 mph.
Saturday
Partly sunny, with a high near 20. West northwest wind 14 to 18 mph, with gusts as high as 24 mph.
Saturday Night
Partly cloudy, with a low around 5.
Sunday
Partly sunny, with a high near 19.
Sunday Night
Mostly cloudy, with a low around 9.
M.L.King Day
Partly sunny, with a high near 22. Breezy.
Monday Night
Partly cloudy, with a low around 6.
Tuesday
Mostly sunny, with a high near 25.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Forsyth IL
 39.97°N 88.96°W (Elev. 679 ft)
Last Update:
4:41 am CST Jan 14, 2026
Forecast Valid:
4am CST Jan 14, 2026-6pm CST Jan 20, 2026
 
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Additional Resources

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