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Hazardous Weather Conditions

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Mostly Cloudy

52°F

11°C

Humidity 66%
Wind Speed NW 14 G 25 mph
Barometer 30.16 in (1021.3 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill47°F (8°C)
Last update 16 Oct 11:54 am CDT
Extended Forecast for

Decatur IL

  • This Afternoon

    This Afternoon: Scattered showers after 3pm. Cloudy, with a high near 54. Breezy, with a northwest wind 17 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 40%.

    High: 54 °F

    Scattered
    Showers and
    Breezy

  • Tonight

    Tonight: Isolated showers before 7pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 36. North wind 10 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 10%.

    Low: 36 °F

    Isolated
    Showers then
    Mostly Clear

  • Saturday

    Saturday: Patchy frost before 8am. Otherwise, sunny, with a high near 59. North wind around 6 mph becoming calm in the afternoon.

    High: 59 °F

    Patchy Frost
    then Sunny

  • Saturday Night

    Saturday Night: Areas of frost after 4am. Otherwise, clear, with a low around 34. Light southeast wind.

    Low: 34 °F

    Clear then
    Areas Frost

  • Sunday

    Sunday: Areas of frost before 8am. Otherwise, sunny, with a high near 66. South wind 5 to 8 mph.

    High: 66 °F

    Areas Frost
    then Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 38. South southeast wind around 5 mph becoming calm after midnight.

    Low: 38 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 72. Calm wind becoming south around 5 mph in the afternoon.

    High: 72 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

Detailed Forecast

This Afternoon
Scattered showers after 3pm. Cloudy, with a high near 54. Breezy, with a northwest wind 17 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 40%.
Tonight
Isolated showers before 7pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 36. North wind 10 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 10%.
Saturday
Patchy frost before 8am. Otherwise, sunny, with a high near 59. North wind around 6 mph becoming calm in the afternoon.
Saturday Night
Areas of frost after 4am. Otherwise, clear, with a low around 34. Light southeast wind.
Sunday
Areas of frost before 8am. Otherwise, sunny, with a high near 66. South wind 5 to 8 mph.
Sunday Night
Clear, with a low around 38. South southeast wind around 5 mph becoming calm after midnight.
Monday
Sunny, with a high near 72. Calm wind becoming south around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 42.
Tuesday
Sunny, with a high near 76.
Tuesday Night
Mostly clear, with a low around 45.
Wednesday
Sunny, with a high near 78.
Wednesday Night
Mostly clear, with a low around 48.
Thursday
Sunny, with a high near 79.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Decatur IL
 39.84°N 88.94°W (Elev. 692 ft)
Last Update:
12:26 pm CDT Oct 16, 2026
Forecast Valid:
12pm CDT Oct 16, 2026-6pm CDT Oct 22, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation