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

81°F

27°C

Humidity 49%
Wind Speed E 8 mph
Barometer 29.99 in (1015.2 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 26 May 2:54 pm CDT
Extended Forecast for

3 Miles WSW Forsyth IL

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 82. East wind around 7 mph.

    High: 82 °F

    Mostly Cloudy

  • Tonight

    Tonight: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 62. East southeast wind around 6 mph becoming light and variable.

    Low: 62 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: A 20 percent chance of showers between 1pm and 3pm. Mostly sunny, with a high near 82. North northeast wind 5 to 10 mph.

    High: 82 °F

    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 59. Northeast wind 3 to 6 mph.

    Low: 59 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 83. Northeast wind 9 to 13 mph, with gusts as high as 17 mph.

    High: 83 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 57. East northeast wind around 10 mph, with gusts as high as 16 mph.

    Low: 57 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 79. East wind around 9 mph.

    High: 79 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 82. East wind around 7 mph.
Tonight
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 62. East southeast wind around 6 mph becoming light and variable.
Wednesday
A 20 percent chance of showers between 1pm and 3pm. Mostly sunny, with a high near 82. North northeast wind 5 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 59. Northeast wind 3 to 6 mph.
Thursday
Mostly sunny, with a high near 83. Northeast wind 9 to 13 mph, with gusts as high as 17 mph.
Thursday Night
Partly cloudy, with a low around 57. East northeast wind around 10 mph, with gusts as high as 16 mph.
Friday
Mostly sunny, with a high near 79. East wind around 9 mph.
Friday Night
Partly cloudy, with a low around 58.
Saturday
Mostly sunny, with a high near 81.
Saturday Night
Mostly clear, with a low around 57.
Sunday
Mostly sunny, with a high near 79.
Sunday Night
Partly cloudy, with a low around 56.
Monday
Mostly sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Forsyth IL
 39.89°N 89.02°W (Elev. 656 ft)
Last Update:
1:26 pm CDT May 26, 2026
Forecast Valid:
3pm CDT May 26, 2026-6pm CDT Jun 1, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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