National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
News Headlines

Hazardous Weather Conditions

Current conditions at

Rantoul National Aviation Center Airport (KTIP)

Lat: 40.29°NLon: 88.15°WElev: 732ft.

Overcast

62°F

17°C

Humidity 83%
Wind Speed NE 14 mph
Barometer 30.12 in
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 15 Oct 12:50 am CDT
Extended Forecast for

Dewey IL

  • Overnight

    Overnight: A 20 percent chance of showers before 4am. Mostly cloudy, with a low around 59. East northeast wind 6 to 8 mph, with gusts as high as 15 mph.

    Low: 59 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: Showers, with thunderstorms also possible after 4pm. High near 74. East wind 7 to 10 mph becoming south in the afternoon. Winds could gust as high as 16 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 74 °F

    Chance
    Showers then
    Showers

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 4am, then a slight chance of showers between 4am and 5am. Mostly cloudy, with a low around 49. South southwest wind 13 to 17 mph becoming northwest after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 49 °F

    Showers
    Likely then
    Chance
    Showers

  • Friday

    Friday: A 40 percent chance of showers after 1pm. Partly sunny, with a high near 58. Breezy, with a northwest wind 20 to 22 mph, with gusts as high as 30 mph.

    High: 58 °F

    Breezy.
    Partly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 38. North wind 10 to 16 mph, with gusts as high as 23 mph.

    Low: 38 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 59. North wind around 6 mph becoming calm in the morning.

    High: 59 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 36. Calm wind becoming south around 5 mph after midnight.

    Low: 36 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

Detailed Forecast

Overnight
A 20 percent chance of showers before 4am. Mostly cloudy, with a low around 59. East northeast wind 6 to 8 mph, with gusts as high as 15 mph.
Thursday
Showers, with thunderstorms also possible after 4pm. High near 74. East wind 7 to 10 mph becoming south in the afternoon. Winds could gust as high as 16 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
Showers likely and possibly a thunderstorm before 4am, then a slight chance of showers between 4am and 5am. Mostly cloudy, with a low around 49. South southwest wind 13 to 17 mph becoming northwest after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
A 40 percent chance of showers after 1pm. Partly sunny, with a high near 58. Breezy, with a northwest wind 20 to 22 mph, with gusts as high as 30 mph.
Friday Night
Partly cloudy, with a low around 38. North wind 10 to 16 mph, with gusts as high as 23 mph.
Saturday
Sunny, with a high near 59. North wind around 6 mph becoming calm in the morning.
Saturday Night
Clear, with a low around 36. Calm wind becoming south around 5 mph after midnight.
Sunday
Sunny, with a high near 66.
Sunday Night
Mostly clear, with a low around 40.
Monday
Mostly sunny, with a high near 73.
Monday Night
Partly cloudy, with a low around 44.
Tuesday
Sunny, with a high near 73.
Tuesday Night
Mostly clear, with a low around 47.
Wednesday
Sunny, with a high near 77.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Dewey IL
 40.3°N 88.28°W (Elev. 715 ft)
Last Update:
11:51 pm CDT Oct 14, 2026
Forecast Valid:
1am CDT Oct 15, 2026-6pm CDT Oct 21, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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