Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

43°F

6°C

Humidity 68%
Wind Speed E 14 mph
Barometer 29.76 in (1007.9 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 15 Mar 12:54 am CDT
Extended Forecast for

Forsyth IL

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

    Overnight: Mostly cloudy, with a low around 43. South southeast wind around 17 mph, with gusts as high as 25 mph.

    Low: 43 °F

    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of rain before 10am, then a chance of rain and thunderstorms between 10am and 4pm, then rain likely and possibly a thunderstorm after 4pm.  Mostly cloudy, with a high near 65. Windy, with a south wind 21 to 26 mph increasing to 27 to 32 mph in the afternoon. Winds could gust as high as 48 mph.  Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 65 °F

    Windy. Chance
    T-storms then
    Rain Likely

  • Sunday Night

    Sunday Night: Rain before 11pm, then a chance of rain and snow between 11pm and midnight, then a chance of snow after midnight.  Patchy blowing snow after midnight. Low around 21. Windy, with a west northwest wind 25 to 31 mph, with gusts as high as 45 mph.  Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    Low: 21 °F

    Rain/Snow and
    Patchy
    Blowing Snow

  • Monday

    Monday: A 40 percent chance of snow before 1pm.  Patchy blowing snow. Mostly cloudy, with a high near 25. Wind chill values between 2 and 8. Windy, with a west northwest wind 29 to 31 mph, with gusts as high as 44 mph.

    High: 25 °F

    Chance Snow
    and Patchy
    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 32 mph.

    Low: 10 °F

    Mostly Cloudy
    and Blustery

  • Tuesday

    Tuesday: Mostly sunny, with a high near 29. West northwest wind 9 to 14 mph, with gusts as high as 20 mph.

    High: 29 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 50 percent chance of snow.  Mostly cloudy, with a low around 24. South wind 6 to 11 mph increasing to 13 to 18 mph after midnight. Winds could gust as high as 26 mph.

    Low: 24 °F

    Chance Snow

  • Wednesday

    Wednesday: Mostly sunny, with a high near 53.

    High: 53 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 43. South southeast wind around 17 mph, with gusts as high as 25 mph.
Sunday
A slight chance of rain before 10am, then a chance of rain and thunderstorms between 10am and 4pm, then rain likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 65. Windy, with a south wind 21 to 26 mph increasing to 27 to 32 mph in the afternoon. Winds could gust as high as 48 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Rain before 11pm, then a chance of rain and snow between 11pm and midnight, then a chance of snow after midnight. Patchy blowing snow after midnight. Low around 21. Windy, with a west northwest wind 25 to 31 mph, with gusts as high as 45 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Monday
A 40 percent chance of snow before 1pm. Patchy blowing snow. Mostly cloudy, with a high near 25. Wind chill values between 2 and 8. Windy, with a west northwest wind 29 to 31 mph, with gusts as high as 44 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 32 mph.
Tuesday
Mostly sunny, with a high near 29. West northwest wind 9 to 14 mph, with gusts as high as 20 mph.
Tuesday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 24. South wind 6 to 11 mph increasing to 13 to 18 mph after midnight. Winds could gust as high as 26 mph.
Wednesday
Mostly sunny, with a high near 53.
Wednesday Night
Partly cloudy, with a low around 36.
Thursday
Mostly sunny, with a high near 64.
Thursday Night
Partly cloudy, with a low around 39.
Friday
Partly sunny, with a high near 69.
Friday Night
Mostly cloudy, with a low around 43.
Saturday
Partly sunny, with a high near 61.
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ABOUT THIS FORECAST

 
Point Forecast:
Forsyth IL
 39.93°N 88.96°W (Elev. 650 ft)
1:26 am CDT Mar 15, 2026
1am CDT Mar 15, 2026-6pm CDT Mar 21, 2026
 
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Additional Resources

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