Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Partly Cloudy

62°F

17°C

Humidity 93%
Wind Speed S 16 mph
Barometer 29.65 in (1004.0 mb)
Dewpoint 60°F (16°C)
Visibility 8.00 mi
Last update 28 Dec 6:54 am CST
Extended Forecast for

3 Miles WSW Forsyth IL

Wind Advisory December 28, 03:00pm until December 29, 12:00pm
Click here for hazard details and duration
Wind Advisory
  • Today

    Today: Showers and thunderstorms before 4pm, then showers likely and possibly a thunderstorm between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm.  High near 67. Breezy, with a south southwest wind 14 to 19 mph becoming west 20 to 25 mph in the afternoon. Winds could gust as high as 39 mph.  Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 67 °F

    Showers
    Likely then
    Showers and
    Breezy

  • Tonight

    Tonight: A 30 percent chance of showers, mainly before 7pm.  Mostly cloudy, with a low around 16. Wind chill values between -3 and 7. Windy, with a west wind 28 to 34 mph, with gusts as high as 48 mph.

    Low: 16 °F

    Windy. Chance
    Showers then
    Mostly Cloudy

  • Monday

    Monday: A chance of flurries before noon.  Partly sunny, with a high near 24. Wind chill values between -5 and 5. Windy, with a west northwest wind 28 to 33 mph decreasing to 21 to 26 mph in the afternoon. Winds could gust as high as 48 mph.

    High: 24 °F

    Chance
    Flurries and
    Windy

  • Monday Night

    Monday Night: Mostly clear, with a low around 13. Wind chill values between -2 and 5. Blustery, with a west northwest wind 14 to 21 mph, with gusts as high as 28 mph.

    Low: 13 °F

    Partly Cloudy
    and Blustery
    then Mostly
    Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 29. West northwest wind 11 to 14 mph, with gusts as high as 20 mph.

    High: 29 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 24. West southwest wind 10 to 13 mph, with gusts as high as 20 mph.

    Low: 24 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 37. West northwest wind 10 to 14 mph, with gusts as high as 21 mph.

    High: 37 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 21.

    Low: 21 °F

    Mostly Cloudy

  • New Year's Day

    New Year's Day: Mostly sunny, with a high near 31.

    High: 31 °F

    Mostly Sunny

Detailed Forecast

Today
Showers and thunderstorms before 4pm, then showers likely and possibly a thunderstorm between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. High near 67. Breezy, with a south southwest wind 14 to 19 mph becoming west 20 to 25 mph in the afternoon. Winds could gust as high as 39 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
A 30 percent chance of showers, mainly before 7pm. Mostly cloudy, with a low around 16. Wind chill values between -3 and 7. Windy, with a west wind 28 to 34 mph, with gusts as high as 48 mph.
Monday
A chance of flurries before noon. Partly sunny, with a high near 24. Wind chill values between -5 and 5. Windy, with a west northwest wind 28 to 33 mph decreasing to 21 to 26 mph in the afternoon. Winds could gust as high as 48 mph.
Monday Night
Mostly clear, with a low around 13. Wind chill values between -2 and 5. Blustery, with a west northwest wind 14 to 21 mph, with gusts as high as 28 mph.
Tuesday
Mostly sunny, with a high near 29. West northwest wind 11 to 14 mph, with gusts as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 24. West southwest wind 10 to 13 mph, with gusts as high as 20 mph.
Wednesday
Partly sunny, with a high near 37. West northwest wind 10 to 14 mph, with gusts as high as 21 mph.
Wednesday Night
Mostly cloudy, with a low around 21.
New Year's Day
Mostly sunny, with a high near 31.
Thursday Night
Mostly clear, with a low around 15.
Friday
Mostly sunny, with a high near 36.
Friday Night
Partly cloudy, with a low around 26.
Saturday
Partly sunny, with a high near 42.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Forsyth IL
 39.89°N 89.02°W (Elev. 656 ft)
7:51 am CST Dec 28, 2025
7am CST Dec 28, 2025-6pm CST Jan 3, 2026
 
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Additional Resources

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