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.

Fair

69°F

21°C

Humidity 61%
Wind Speed SW 16 G 26 mph
Barometer 29.89 in (1011.5 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 31 Mar 12:54 am CDT
Extended Forecast for

Dalton City IL

  • Overnight

    Overnight: Partly cloudy, with a low around 62. South southwest wind around 18 mph, with gusts as high as 28 mph.

    Low: 62 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 80. Breezy, with a south southwest wind 17 to 24 mph, with gusts as high as 34 mph.

    High: 80 °F

    Chance
    T-storms and
    Breezy

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 11pm. Low around 50. South southwest wind 10 to 13 mph becoming north northeast after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 50 °F

    T-storms

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm before 1pm, then rain and possibly a thunderstorm after 1pm. High near 64. East northeast wind around 14 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 64 °F

    Showers

  • Wednesday Night

    Wednesday Night: Rain likely. Mostly cloudy, with a low around 57. East southeast wind 14 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 57 °F

    Rain Likely

  • Thursday

    Thursday: A chance of rain, then rain and possibly a thunderstorm after 1pm. High near 75. Windy, with a south wind 18 to 23 mph increasing to 25 to 30 mph in the afternoon. Winds could gust as high as 41 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Chance Rain
    and Breezy
    then Rain and
    Windy

  • Thursday Night

    Thursday Night: Rain and possibly a thunderstorm before 1am, then a chance of rain. Low around 57. Breezy, with a south southwest wind 13 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 57 °F

    Rain and
    Breezy

  • Friday

    Friday: A 50 percent chance of rain after 1pm. Partly sunny, with a high near 76.

    High: 76 °F

    Mostly Cloudy
    then Chance
    Rain

  • Friday Night

    Friday Night: A chance of rain and thunderstorms, then rain likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 58. Chance of precipitation is 70%.

    Low: 58 °F

    Chance
    T-storms then
    Rain Likely

Detailed Forecast

Overnight
Partly cloudy, with a low around 62. South southwest wind around 18 mph, with gusts as high as 28 mph.
Tuesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 80. Breezy, with a south southwest wind 17 to 24 mph, with gusts as high as 34 mph.
Tuesday Night
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 11pm. Low around 50. South southwest wind 10 to 13 mph becoming north northeast after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Showers and possibly a thunderstorm before 1pm, then rain and possibly a thunderstorm after 1pm. High near 64. East northeast wind around 14 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 57. East southeast wind 14 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
A chance of rain, then rain and possibly a thunderstorm after 1pm. High near 75. Windy, with a south wind 18 to 23 mph increasing to 25 to 30 mph in the afternoon. Winds could gust as high as 41 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Rain and possibly a thunderstorm before 1am, then a chance of rain. Low around 57. Breezy, with a south southwest wind 13 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
A 50 percent chance of rain after 1pm. Partly sunny, with a high near 76.
Friday Night
A chance of rain and thunderstorms, then rain likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 58. Chance of precipitation is 70%.
Saturday
Rain and possibly a thunderstorm before 1pm, then rain likely. High near 68. Breezy. Chance of precipitation is 80%.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 38.
Sunday
Partly sunny, with a high near 52. Breezy.
Sunday Night
Mostly clear, with a low around 32.
Monday
Sunny, with a high near 57.
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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:
1:27 am CDT Mar 31, 2026
Forecast Valid:
1am CDT Mar 31, 2026-6pm CDT Apr 6, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation