Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fog/Mist

51°F

11°C

Humidity 100%
Wind Speed SE 14 mph
Barometer 29.82 in (1009.9 mb)
Dewpoint 51°F (11°C)
Visibility 1.00 mi
Wind Chill46°F (8°C)
Last update 27 Dec 5:54 pm CST
Extended Forecast for

3 Miles WSW Forsyth IL

Wind Advisory December 28, 03:00pm until December 29, 06:00pm
Click here for hazard details and duration
Wind Advisory
  • Tonight

    Tonight: A 30 percent chance of rain after 1am.  Patchy fog before 3am.  Otherwise, cloudy, with a temperature rising to around 61 by 4am. South southwest wind 11 to 14 mph, with gusts as high as 22 mph.

    Low: 53 °F

    Chance Rain
    and Patchy
    Fog

  • Sunday

    Sunday: Rain and thunderstorms likely, then rain and possibly a thunderstorm after 1pm.  Temperature rising to near 64 by 11am, then falling to around 48 during the remainder of the day. Breezy, with a south southwest wind 10 to 15 mph becoming west 24 to 29 mph in the afternoon. Winds could gust as high as 39 mph.  Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 64 °F

    Rain Likely
    then Rain and
    Breezy

  • Sunday Night

    Sunday Night: A chance of rain before 8pm, then a slight chance of sleet between 8pm and 9pm.  Mostly cloudy, with a low around 14. Wind chill values between -4 and 6. Windy, with a west wind 28 to 31 mph, with gusts as high as 46 mph.  Chance of precipitation is 40%.

    Low: 14 °F

    Windy. Chance
    Rain/Sleet
    then Mostly
    Cloudy

  • Monday

    Monday: Partly sunny, with a high near 23. Wind chill values between -6 and 4. Windy, with a west northwest wind 24 to 31 mph, with gusts as high as 46 mph.

    High: 23 °F

    Partly Sunny
    and Windy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 12. Blustery, with a northwest wind 16 to 22 mph, with gusts as high as 30 mph.

    Low: 12 °F

    Partly Cloudy
    and Blustery
    then Mostly
    Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 28. West northwest wind 11 to 15 mph, with gusts as high as 22 mph.

    High: 28 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 23. West southwest wind 10 to 13 mph, with gusts as high as 20 mph.

    Low: 23 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 36.

    High: 36 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 20.

    Low: 20 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A 30 percent chance of rain after 1am. Patchy fog before 3am. Otherwise, cloudy, with a temperature rising to around 61 by 4am. South southwest wind 11 to 14 mph, with gusts as high as 22 mph.
Sunday
Rain and thunderstorms likely, then rain and possibly a thunderstorm after 1pm. Temperature rising to near 64 by 11am, then falling to around 48 during the remainder of the day. Breezy, with a south southwest wind 10 to 15 mph becoming west 24 to 29 mph in the afternoon. Winds could gust as high as 39 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
A chance of rain before 8pm, then a slight chance of sleet between 8pm and 9pm. Mostly cloudy, with a low around 14. Wind chill values between -4 and 6. Windy, with a west wind 28 to 31 mph, with gusts as high as 46 mph. Chance of precipitation is 40%.
Monday
Partly sunny, with a high near 23. Wind chill values between -6 and 4. Windy, with a west northwest wind 24 to 31 mph, with gusts as high as 46 mph.
Monday Night
Partly cloudy, with a low around 12. Blustery, with a northwest wind 16 to 22 mph, with gusts as high as 30 mph.
Tuesday
Mostly sunny, with a high near 28. West northwest wind 11 to 15 mph, with gusts as high as 22 mph.
Tuesday Night
Partly cloudy, with a low around 23. West southwest wind 10 to 13 mph, with gusts as high as 20 mph.
Wednesday
Partly sunny, with a high near 36.
Wednesday Night
Mostly cloudy, with a low around 20.
New Year's Day
Mostly sunny, with a high near 31.
Thursday Night
Mostly clear, with a low around 13.
Friday
Mostly sunny, with a high near 32.
Friday Night
Partly cloudy, with a low around 24.
Saturday
Partly sunny, with a high near 40.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Forsyth IL
 39.89°N 89.02°W (Elev. 656 ft)
4:53 pm CST Dec 27, 2025
6pm CST Dec 27, 2025-6pm CST Jan 3, 2026
 
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