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.

Overcast

68°F

20°C

Humidity 90%
Wind Speed NE 16 G 28 mph
Barometer 29.74 in (1006.5 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 2 Aug 12:54 am CDT
Extended Forecast for

2 Miles WSW Decatur IL

  • Overnight

    Overnight: Showers, mainly before 4am. Low around 66. North wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 66 °F

    Showers

  • Sunday

    Sunday: Mostly sunny, with a high near 80. North wind around 15 mph, with gusts as high as 25 mph.

    High: 80 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 63. North wind 5 to 10 mph, with gusts as high as 17 mph.

    Low: 63 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 83. Northeast wind 3 to 7 mph.

    High: 83 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 63. East northeast wind around 6 mph becoming calm after midnight.

    Low: 63 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 84. Light east southeast wind.

    High: 84 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 64. Calm wind.

    Low: 64 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 67. Chance of precipitation is 50%.

    Low: 67 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Showers, mainly before 4am. Low around 66. North wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Mostly sunny, with a high near 80. North wind around 15 mph, with gusts as high as 25 mph.
Sunday Night
Mostly clear, with a low around 63. North wind 5 to 10 mph, with gusts as high as 17 mph.
Monday
Mostly sunny, with a high near 83. Northeast wind 3 to 7 mph.
Monday Night
Mostly clear, with a low around 63. East northeast wind around 6 mph becoming calm after midnight.
Tuesday
Sunny, with a high near 84. Light east southeast wind.
Tuesday Night
Mostly clear, with a low around 64. Calm wind.
Wednesday
Sunny, with a high near 86.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 67. Chance of precipitation is 50%.
Thursday
Showers likely before 1pm. Mostly cloudy, with a high near 82. Chance of precipitation is 60%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 67.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 84.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 67.
Saturday
Partly sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Decatur IL
 39.84°N 88.97°W (Elev. 676 ft)
Last Update:
1:26 am CDT Aug 2, 2026
Forecast Valid:
1am CDT Aug 2, 2026-6pm CDT Aug 8, 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