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.

Fair

46°F

8°C

Humidity 42%
Wind Speed W 6 mph
Barometer 30.03 in (1017.1 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 13 Mar 7:54 pm CDT
Extended Forecast for

Dalton City IL

  • Tonight

    Tonight: A chance of flurries after 4am. Mostly cloudy, with a low around 32. West northwest wind 6 to 11 mph becoming north northeast after midnight. Winds could gust as high as 18 mph.

    Low: 32 °F

    Chance
    Flurries

  • Saturday

    Saturday: A 10 percent chance of snow before 7am. Partly sunny, with a high near 53. Southeast wind 7 to 15 mph, with gusts as high as 22 mph.

    High: 53 °F

    Slight Chance
    Snow then
    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 46. East southeast wind 14 to 18 mph, with gusts as high as 26 mph.

    Low: 46 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of rain before 10am, then showers, mainly after 1pm. High near 67. Windy, with a south wind 22 to 27 mph increasing to 28 to 33 mph in the afternoon. Winds could gust as high as 46 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 67 °F

    Windy. Chance
    Rain then
    Showers

  • Sunday Night

    Sunday Night: Rain showers before 1am, then snow likely. Low around 21. Blustery, with a south southwest wind 23 to 29 mph becoming west northwest after midnight. Winds could gust as high as 38 mph. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.

    Low: 21 °F

    Showers and
    Breezy then
    Rain/Snow and
    Blustery

  • Monday

    Monday: A 50 percent chance of snow before 1pm. Cloudy, with a high near 25. Windy, with a west northwest wind 28 to 30 mph, with gusts as high as 41 mph.

    High: 25 °F

    Chance Snow
    and Windy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 9. Blustery, with a west northwest wind 18 to 24 mph, with gusts as high as 33 mph.

    Low: 9 °F

    Mostly Cloudy
    and Blustery

  • Tuesday

    Tuesday: Mostly sunny, with a high near 29.

    High: 29 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of rain and snow after 1am. Mostly cloudy, with a low around 21. Chance of precipitation is 40%.

    Low: 21 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

Detailed Forecast

Tonight
A chance of flurries after 4am. Mostly cloudy, with a low around 32. West northwest wind 6 to 11 mph becoming north northeast after midnight. Winds could gust as high as 18 mph.
Saturday
A 10 percent chance of snow before 7am. Partly sunny, with a high near 53. Southeast wind 7 to 15 mph, with gusts as high as 22 mph.
Saturday Night
Mostly cloudy, with a low around 46. East southeast wind 14 to 18 mph, with gusts as high as 26 mph.
Sunday
A chance of rain before 10am, then showers, mainly after 1pm. High near 67. Windy, with a south wind 22 to 27 mph increasing to 28 to 33 mph in the afternoon. Winds could gust as high as 46 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
Rain showers before 1am, then snow likely. Low around 21. Blustery, with a south southwest wind 23 to 29 mph becoming west northwest after midnight. Winds could gust as high as 38 mph. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.
Monday
A 50 percent chance of snow before 1pm. Cloudy, with a high near 25. Windy, with a west northwest wind 28 to 30 mph, with gusts as high as 41 mph.
Monday Night
Mostly cloudy, with a low around 9. Blustery, with a west northwest wind 18 to 24 mph, with gusts as high as 33 mph.
Tuesday
Mostly sunny, with a high near 29.
Tuesday Night
A chance of rain and snow after 1am. Mostly cloudy, with a low around 21. Chance of precipitation is 40%.
Wednesday
Partly sunny, with a high near 52.
Wednesday Night
Mostly clear, with a low around 34.
Thursday
Mostly sunny, with a high near 61.
Thursday Night
Partly cloudy, with a low around 40.
Friday
Mostly sunny, with a high near 60.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Dalton City IL
 39.73°N 88.8°W (Elev. 689 ft)
Last Update:
7:46 pm CDT Mar 13, 2026
Forecast Valid:
8pm CDT Mar 13, 2026-6pm CDT Mar 20, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation