Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair and Breezy

53°F

12°C

Humidity 41%
Wind Speed E 21 mph
Barometer 29.96 in (1014.9 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill47°F (8°C)
Last update 14 Mar 4:54 pm CDT
Extended Forecast for

4 Miles N Forsyth IL

Wind Advisory March 15, 10:00am until March 16, 07:00am
Click here for hazard details and duration
Wind Advisory
  • Tonight

    Tonight: Mostly cloudy, with a low around 45. East southeast wind 14 to 18 mph, with gusts as high as 28 mph.

    Low: 45 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 3pm, then showers likely and possibly a thunderstorm after 3pm.  Mostly cloudy, with a high near 64. Windy, with a south wind 22 to 27 mph increasing to 29 to 34 mph in the afternoon. Winds could gust as high as 49 mph.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 64 °F

    Showers
    Likely and
    Windy

  • Sunday Night

    Sunday Night: Rain showers before 11pm, then snow showers, possibly mixed with rain between 11pm and 1am, then snow likely after 1am. Some thunder is also possible.  Patchy blowing snow after midnight. Low around 19. Wind chill values between 5 and 15. Windy, with a west southwest wind 26 to 31 mph, with gusts as high as 46 mph.  Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    Low: 19 °F

    Rain/Snow and
    Patchy
    Blowing Snow

  • Monday

    Monday: A 40 percent chance of snow before 1pm.  Areas of blowing snow. Mostly cloudy, with a high near 25. Wind chill values between 1 and 6. Windy, with a west northwest wind around 31 mph, with gusts as high as 45 mph.

    High: 25 °F

    Chance Snow
    and Areas
    Blowing Snow

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 10. Blustery, with a west northwest wind 16 to 23 mph, with gusts as high as 31 mph.

    Low: 10 °F

    Mostly Cloudy
    and Blustery

  • Tuesday

    Tuesday: Mostly sunny, with a high near 30. West northwest wind 10 to 13 mph becoming southwest in the afternoon. Winds could gust as high as 18 mph.

    High: 30 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Snow likely, mainly after 1am.  Mostly cloudy, with a low around 25. South southeast wind 8 to 18 mph, with gusts as high as 28 mph.  Chance of precipitation is 60%.

    Low: 25 °F

    Snow Likely

  • Wednesday

    Wednesday: Mostly sunny, with a high near 55.

    High: 55 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 35.

    Low: 35 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 45. East southeast wind 14 to 18 mph, with gusts as high as 28 mph.
Sunday
A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 3pm, then showers likely and possibly a thunderstorm after 3pm. Mostly cloudy, with a high near 64. Windy, with a south wind 22 to 27 mph increasing to 29 to 34 mph in the afternoon. Winds could gust as high as 49 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Rain showers before 11pm, then snow showers, possibly mixed with rain between 11pm and 1am, then snow likely after 1am. Some thunder is also possible. Patchy blowing snow after midnight. Low around 19. Wind chill values between 5 and 15. Windy, with a west southwest wind 26 to 31 mph, with gusts as high as 46 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Monday
A 40 percent chance of snow before 1pm. Areas of blowing snow. Mostly cloudy, with a high near 25. Wind chill values between 1 and 6. Windy, with a west northwest wind around 31 mph, with gusts as high as 45 mph.
Monday Night
Mostly cloudy, with a low around 10. Blustery, with a west northwest wind 16 to 23 mph, with gusts as high as 31 mph.
Tuesday
Mostly sunny, with a high near 30. West northwest wind 10 to 13 mph becoming southwest in the afternoon. Winds could gust as high as 18 mph.
Tuesday Night
Snow likely, mainly after 1am. Mostly cloudy, with a low around 25. South southeast wind 8 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 60%.
Wednesday
Mostly sunny, with a high near 55.
Wednesday Night
Partly cloudy, with a low around 35.
Thursday
Mostly sunny, with a high near 65.
Thursday Night
Mostly cloudy, with a low around 42.
Friday
Mostly sunny, with a high near 67.
Friday Night
Partly cloudy, with a low around 44.
Saturday
Mostly sunny, with a high near 71.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Forsyth IL
 39.97°N 88.96°W (Elev. 679 ft)
4:36 pm CDT Mar 14, 2026
5pm CDT Mar 14, 2026-6pm CDT Mar 21, 2026
 
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Additional Resources

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