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.

Overcast

57°F

14°C

Humidity 42%
Wind Speed N 3 mph
Barometer 30.01 in (1016.2 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 1 May 5:54 pm CDT
Extended Forecast for

3 Miles SW Dewitt IL

  • Tonight

    Tonight: A 20 percent chance of showers before 9pm. Mostly cloudy, with a low around 39. Northwest wind 5 to 7 mph becoming light and variable.

    Low: 39 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 57. Northeast wind 5 to 10 mph becoming north northwest in the afternoon. Winds could gust as high as 15 mph.

    High: 57 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 39. Northwest wind 5 to 9 mph becoming south southwest after midnight.

    Low: 39 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 69. Breezy, with a south southwest wind 11 to 16 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 69 °F

    Partly Sunny
    then Partly
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: A chance of showers before 7pm, then a chance of showers and thunderstorms between 7pm and 1am, then a chance of showers after 1am. Partly cloudy, with a low around 50. Southwest wind 9 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.

    Low: 50 °F

    Chance
    T-storms

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 76. Breezy, with a southwest wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 76 °F

    Mostly Sunny
    then Chance
    T-storms and
    Breezy

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Partly cloudy, with a low around 53. Southwest wind 13 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 53 °F

    Showers
    Likely

  • Tuesday

    Tuesday: Showers likely, mainly after 1pm. Mostly cloudy, with a high near 64. Chance of precipitation is 70%.

    High: 64 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 43.

    Low: 43 °F

    Chance
    Showers

Detailed Forecast

Tonight
A 20 percent chance of showers before 9pm. Mostly cloudy, with a low around 39. Northwest wind 5 to 7 mph becoming light and variable.
Saturday
Partly sunny, with a high near 57. Northeast wind 5 to 10 mph becoming north northwest in the afternoon. Winds could gust as high as 15 mph.
Saturday Night
Mostly clear, with a low around 39. Northwest wind 5 to 9 mph becoming south southwest after midnight.
Sunday
Partly sunny, with a high near 69. Breezy, with a south southwest wind 11 to 16 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 30 mph.
Sunday Night
A chance of showers before 7pm, then a chance of showers and thunderstorms between 7pm and 1am, then a chance of showers after 1am. Partly cloudy, with a low around 50. Southwest wind 9 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Monday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 76. Breezy, with a southwest wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 30 mph.
Monday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Partly cloudy, with a low around 53. Southwest wind 13 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
Showers likely, mainly after 1pm. Mostly cloudy, with a high near 64. Chance of precipitation is 70%.
Tuesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 43.
Wednesday
A 30 percent chance of showers after 1pm. Partly sunny, with a high near 59.
Wednesday Night
Mostly cloudy, with a low around 41.
Thursday
Mostly sunny, with a high near 61.
Thursday Night
Mostly clear, with a low around 41.
Friday
Mostly sunny, with a high near 67.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Dewitt IL
 40.17°N 88.78°W (Elev. 699 ft)
Last Update:
5:51 pm CDT May 1, 2026
Forecast Valid:
6pm CDT May 1, 2026-6pm CDT May 8, 2026
 
Forecast Discussion
 
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Additional Resources

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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