National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

41°F

5°C

Humidity 57%
Wind Speed SE 10 mph
Barometer 30.26 in (1025.2 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 8 Apr 4:54 am CDT
Extended Forecast for

4 Miles N Forsyth IL

  • Today

    Today: Partly sunny, with a high near 70. Breezy, with a south wind 13 to 23 mph, with gusts as high as 32 mph.

    High: 70 °F

    Partly Sunny
    and Breezy

  • Tonight

    Tonight: A 10 percent chance of showers after 5am. Mostly clear, with a low around 54. South wind around 18 mph, with gusts as high as 28 mph.

    Low: 54 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers before 7am, then a slight chance of showers after 1pm. Mostly sunny, with a high near 75. West southwest wind 13 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

    High: 75 °F

    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 56. South wind 8 to 14 mph, with gusts as high as 22 mph.

    Low: 56 °F

    Chance
    Showers

  • Friday

    Friday: Showers likely, mainly before 1pm. Mostly cloudy, with a high near 65. Southwest wind 10 to 13 mph becoming north in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    High: 65 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 44. Northeast wind 8 to 10 mph, with gusts as high as 15 mph.

    Low: 44 °F

    Chance
    Showers

  • Saturday

    Saturday: Partly sunny, with a high near 66. East wind around 11 mph, with gusts as high as 16 mph.

    High: 66 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 56.

    Low: 56 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 79. Breezy.

    High: 79 °F

    Partly Sunny
    and Breezy

Detailed Forecast

Today
Partly sunny, with a high near 70. Breezy, with a south wind 13 to 23 mph, with gusts as high as 32 mph.
Tonight
A 10 percent chance of showers after 5am. Mostly clear, with a low around 54. South wind around 18 mph, with gusts as high as 28 mph.
Thursday
A slight chance of showers before 7am, then a slight chance of showers after 1pm. Mostly sunny, with a high near 75. West southwest wind 13 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Thursday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 56. South wind 8 to 14 mph, with gusts as high as 22 mph.
Friday
Showers likely, mainly before 1pm. Mostly cloudy, with a high near 65. Southwest wind 10 to 13 mph becoming north in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 44. Northeast wind 8 to 10 mph, with gusts as high as 15 mph.
Saturday
Partly sunny, with a high near 66. East wind around 11 mph, with gusts as high as 16 mph.
Saturday Night
Mostly cloudy, with a low around 56.
Sunday
Partly sunny, with a high near 79. Breezy.
Sunday Night
A 50 percent chance of showers after 1am. Mostly cloudy, with a low around 63. Breezy.
Monday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 79. Breezy.
Monday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 63. Breezy.
Tuesday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 76. Breezy.
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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:
2:46 am CDT Apr 8, 2026
Forecast Valid:
5am CDT Apr 8, 2026-6pm CDT Apr 14, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation