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

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

A Few Clouds

53°F

12°C

Humidity 77%
Wind Speed SW 12 mph
Barometer 30.06 in (1018.0 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Wind Chill49°F (9°C)
Last update 14 Nov 7:54 am CST
Extended Forecast for

2 Miles WSW Decatur IL

  • Today

    Today: Sunny, with a high near 74. Southwest wind around 10 mph, with gusts as high as 17 mph.

    High: 74 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 59. Southwest wind 9 to 14 mph, with gusts as high as 20 mph.

    Low: 59 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 72. Southwest wind 9 to 16 mph becoming west northwest in the afternoon. Winds could gust as high as 25 mph.

    High: 72 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 39. North northwest wind 8 to 13 mph, with gusts as high as 18 mph.

    Low: 39 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 55. North northwest wind 7 to 10 mph, with gusts as high as 15 mph.

    High: 55 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 34. West northwest wind around 6 mph becoming calm in the evening.

    Low: 34 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 54. Light northeast wind becoming east 5 to 9 mph in the morning.

    High: 54 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Rain likely. Mostly cloudy, with a low around 39. Chance of precipitation is 70%.

    Low: 39 °F

    Rain Likely

  • Tuesday

    Tuesday: A 30 percent chance of rain before noon. Partly sunny, with a high near 50.

    High: 50 °F

    Chance Rain
    then Partly
    Sunny

Detailed Forecast

Today
Sunny, with a high near 74. Southwest wind around 10 mph, with gusts as high as 17 mph.
Tonight
Increasing clouds, with a low around 59. Southwest wind 9 to 14 mph, with gusts as high as 20 mph.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 72. Southwest wind 9 to 16 mph becoming west northwest in the afternoon. Winds could gust as high as 25 mph.
Saturday Night
Mostly clear, with a low around 39. North northwest wind 8 to 13 mph, with gusts as high as 18 mph.
Sunday
Sunny, with a high near 55. North northwest wind 7 to 10 mph, with gusts as high as 15 mph.
Sunday Night
Partly cloudy, with a low around 34. West northwest wind around 6 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 54. Light northeast wind becoming east 5 to 9 mph in the morning.
Monday Night
Rain likely. Mostly cloudy, with a low around 39. Chance of precipitation is 70%.
Tuesday
A 30 percent chance of rain before noon. Partly sunny, with a high near 50.
Tuesday Night
Partly cloudy, with a low around 32.
Wednesday
Partly sunny, with a high near 51.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 38.
Thursday
Rain likely. Mostly cloudy, with a high near 52.
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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:
5:01 am CST Nov 14, 2025
Forecast Valid:
8am CST Nov 14, 2025-6pm CST Nov 20, 2025
 
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