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Hazardous Weather Conditions

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Fair

79°F

26°C

Humidity 65%
Wind Speed S 20 G 30 mph
Barometer 29.87 in (1010.9 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 17 Apr 12:54 pm CDT
Extended Forecast for

3 Miles NNE Dalton City IL

Flood Watch April 17, 06:00pm until April 18, 04:00am
Click here for hazard details and duration
Flood Watch

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 82. Breezy, with a south wind around 22 mph, with gusts as high as 32 mph.

    High: 82 °F

    Slight Chance
    T-storms and
    Breezy

  • Tonight

    Tonight: Showers and thunderstorms likely before 11pm, then showers and possibly a thunderstorm between 11pm and 4am, then showers after 4am. Some of the storms could produce heavy rainfall. Low around 47. South wind around 18 mph becoming west after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    Low: 47 °F

    Heavy Rain

  • Saturday

    Saturday: A 40 percent chance of showers, mainly before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 56. Breezy, with a northwest wind 18 to 22 mph, with gusts as high as 30 mph.

    High: 56 °F

    Breezy.
    Chance
    Showers then
    Sunny

  • Saturday Night

    Saturday Night: Patchy frost after 5am. Otherwise, mostly clear, with a low around 36. Northwest wind 8 to 16 mph becoming west southwest after midnight. Winds could gust as high as 23 mph.

    Low: 36 °F

    Mostly Clear
    then Patchy
    Frost

  • Sunday

    Sunday: Patchy frost before 8am. Otherwise, sunny, with a high near 60. Breezy, with a west wind 8 to 13 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 29 mph.

    High: 60 °F

    Patchy Frost
    then Sunny
    and Breezy

  • Sunday Night

    Sunday Night: Patchy frost after 5am. Otherwise, mostly clear, with a low around 35. North northwest wind 6 to 13 mph becoming northeast after midnight. Winds could gust as high as 18 mph.

    Low: 35 °F

    Mostly Clear
    then Patchy
    Frost

  • Monday

    Monday: Patchy frost before 8am. Otherwise, sunny, with a high near 61. East northeast wind 6 to 9 mph becoming south in the afternoon.

    High: 61 °F

    Patchy Frost
    then Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 76. Breezy.

    High: 76 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 82. Breezy, with a south wind around 22 mph, with gusts as high as 32 mph.
Tonight
Showers and thunderstorms likely before 11pm, then showers and possibly a thunderstorm between 11pm and 4am, then showers after 4am. Some of the storms could produce heavy rainfall. Low around 47. South wind around 18 mph becoming west after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Saturday
A 40 percent chance of showers, mainly before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 56. Breezy, with a northwest wind 18 to 22 mph, with gusts as high as 30 mph.
Saturday Night
Patchy frost after 5am. Otherwise, mostly clear, with a low around 36. Northwest wind 8 to 16 mph becoming west southwest after midnight. Winds could gust as high as 23 mph.
Sunday
Patchy frost before 8am. Otherwise, sunny, with a high near 60. Breezy, with a west wind 8 to 13 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 29 mph.
Sunday Night
Patchy frost after 5am. Otherwise, mostly clear, with a low around 35. North northwest wind 6 to 13 mph becoming northeast after midnight. Winds could gust as high as 18 mph.
Monday
Patchy frost before 8am. Otherwise, sunny, with a high near 61. East northeast wind 6 to 9 mph becoming south in the afternoon.
Monday Night
Mostly clear, with a low around 48.
Tuesday
Mostly sunny, with a high near 76. Breezy.
Tuesday Night
Partly cloudy, with a low around 54.
Wednesday
Sunny, with a high near 79.
Wednesday Night
Mostly clear, with a low around 57.
Thursday
Mostly sunny, with a high near 81.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Dalton City IL
 39.75°N 88.77°W (Elev. 712 ft)
Last Update:
1:26 pm CDT Apr 17, 2026
Forecast Valid:
1pm CDT Apr 17, 2026-6pm CDT Apr 23, 2026
 
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