National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Rantoul National Aviation Center Airport (KTIP)

Lat: 40.29°NLon: 88.15°WElev: 732ft.

Fair

49°F

9°C

Humidity 66%
Wind Speed S 10 mph
Barometer 29.89 in
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill45°F (7°C)
Last update 8 Mar 8:55 pm CDT
Extended Forecast for

Dewey IL

  • Tonight

    Tonight: Clear, with a low around 43. South southwest wind around 15 mph, with gusts as high as 23 mph.

    Low: 43 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 72. Breezy, with a south southwest wind 14 to 20 mph, with gusts as high as 24 mph.

    High: 72 °F

    Sunny then
    Sunny and
    Breezy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 57. South southwest wind 11 to 14 mph, with gusts as high as 21 mph.

    Low: 57 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 79. Breezy, with a south southwest wind 10 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.

    High: 79 °F

    Mostly Sunny
    then Chance
    T-storms and
    Breezy

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Low around 47. South southwest wind 16 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    Low: 47 °F

    T-storms

  • Wednesday

    Wednesday: Showers before 1pm, then a chance of rain after 1pm. High near 61. Breezy, with a southwest wind 18 to 25 mph becoming northwest in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 61 °F

    Showers and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 30. Blustery, with a northwest wind 17 to 23 mph, with gusts as high as 29 mph.

    Low: 30 °F

    Mostly Cloudy
    and Blustery

  • Thursday

    Thursday: Sunny, with a high near 47.

    High: 47 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 38. Breezy.

    Low: 38 °F

    Mostly Cloudy
    and Breezy

Detailed Forecast

Tonight
Clear, with a low around 43. South southwest wind around 15 mph, with gusts as high as 23 mph.
Monday
Sunny, with a high near 72. Breezy, with a south southwest wind 14 to 20 mph, with gusts as high as 24 mph.
Monday Night
Partly cloudy, with a low around 57. South southwest wind 11 to 14 mph, with gusts as high as 21 mph.
Tuesday
A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 79. Breezy, with a south southwest wind 10 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Tuesday Night
Showers and possibly a thunderstorm. Low around 47. South southwest wind 16 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Wednesday
Showers before 1pm, then a chance of rain after 1pm. High near 61. Breezy, with a southwest wind 18 to 25 mph becoming northwest in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Wednesday Night
Mostly cloudy, with a low around 30. Blustery, with a northwest wind 17 to 23 mph, with gusts as high as 29 mph.
Thursday
Sunny, with a high near 47.
Thursday Night
Mostly cloudy, with a low around 38. Breezy.
Friday
Partly sunny, with a high near 55. Breezy.
Friday Night
Mostly cloudy, with a low around 30.
Saturday
Mostly cloudy, with a high near 49.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 35.
Sunday
Rain and snow likely. Cloudy, with a high near 55. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Dewey IL
 40.32°N 88.28°W (Elev. 725 ft)
Last Update:
7:36 pm CDT Mar 8, 2026
Forecast Valid:
9pm CDT Mar 8, 2026-6pm CDT Mar 15, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation