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.

Partly Cloudy

24°F

-4°C

Humidity 48%
Wind Speed NW 20 G 32 mph
Barometer 30.41 in (1030.7 mb)
Dewpoint 7°F (-14°C)
Visibility 10.00 mi
Wind Chill9°F (-13°C)
Last update 22 Feb 4:54 pm CST
Extended Forecast for

Dalton City IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 15. Wind chill values between -1 and 9. Blustery, with a northwest wind 16 to 20 mph, with gusts as high as 30 mph.

    Low: 15 °F

    Mostly Cloudy
    and Blustery
    then Mostly
    Cloudy

  • Monday

    Monday: Partly sunny, then gradually becoming sunny, with a high near 30. Wind chill values between -1 and 9. North northwest wind 8 to 16 mph, with gusts as high as 24 mph.

    High: 30 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 18. Calm wind becoming south 5 to 9 mph after midnight. Winds could gust as high as 15 mph.

    Low: 18 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 45. Breezy, with a south wind 11 to 16 mph increasing to 18 to 23 mph in the morning. Winds could gust as high as 32 mph.

    High: 45 °F

    Mostly Cloudy
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 28. South southwest wind 9 to 14 mph becoming west northwest after midnight. Winds could gust as high as 23 mph.

    Low: 28 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Mostly sunny, with a high near 47. West northwest wind 7 to 10 mph becoming south in the afternoon. Winds could gust as high as 15 mph.

    High: 47 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Rain likely. Mostly cloudy, with a low around 30. East southeast wind 6 to 14 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 30 °F

    Rain Likely

  • Thursday

    Thursday: A 30 percent chance of rain before noon. Mostly sunny, with a high near 44.

    High: 44 °F

    Chance Rain
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 25.

    Low: 25 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 15. Wind chill values between -1 and 9. Blustery, with a northwest wind 16 to 20 mph, with gusts as high as 30 mph.
Monday
Partly sunny, then gradually becoming sunny, with a high near 30. Wind chill values between -1 and 9. North northwest wind 8 to 16 mph, with gusts as high as 24 mph.
Monday Night
Increasing clouds, with a low around 18. Calm wind becoming south 5 to 9 mph after midnight. Winds could gust as high as 15 mph.
Tuesday
Mostly cloudy, with a high near 45. Breezy, with a south wind 11 to 16 mph increasing to 18 to 23 mph in the morning. Winds could gust as high as 32 mph.
Tuesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 28. South southwest wind 9 to 14 mph becoming west northwest after midnight. Winds could gust as high as 23 mph.
Wednesday
Mostly sunny, with a high near 47. West northwest wind 7 to 10 mph becoming south in the afternoon. Winds could gust as high as 15 mph.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 30. East southeast wind 6 to 14 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
A 30 percent chance of rain before noon. Mostly sunny, with a high near 44.
Thursday Night
Mostly clear, with a low around 25.
Friday
Sunny, with a high near 55.
Friday Night
Mostly clear, with a low around 35.
Saturday
Mostly sunny, with a high near 57.
Saturday Night
Partly cloudy, with a low around 26.
Sunday
Partly sunny, with a high near 42.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Dalton City IL
 39.7°N 88.81°W (Elev. 682 ft)
Last Update:
3:36 pm CST Feb 22, 2026
Forecast Valid:
5pm CST Feb 22, 2026-6pm CST Mar 1, 2026
 
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Additional Resources

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