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Current conditions at

Peoria - General Downing-Peoria International Airport (KPIA)

Lat: 40.67°NLon: 89.68°WElev: 659ft.

Fair

74°F

23°C

Humidity 43%
Wind Speed SE 6 mph
Barometer 30.00 in (1015.7 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 9 Oct 6:54 pm CDT
Extended Forecast for

Delavan IL

  • Tonight

    Tonight: Mostly clear, with a low around 60. South southeast wind 7 to 10 mph, with gusts as high as 18 mph.

    Low: 60 °F

    Mostly Clear

  • Saturday

    Saturday: Increasing clouds, with a high near 82. South southeast wind 7 to 9 mph, with gusts as high as 16 mph.

    High: 82 °F

    Increasing
    Clouds

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 58. Southeast wind 3 to 7 mph.

    Low: 58 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, then gradually becoming sunny, with a high near 80. Light and variable wind.

    High: 80 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 61. Calm wind becoming south around 6 mph after midnight.

    Low: 61 °F

    Mostly Clear

  • Columbus Day

    Columbus Day: Sunny, with a high near 88. Southwest wind 7 to 13 mph, with gusts as high as 21 mph.

    High: 88 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 66. South southwest wind 8 to 10 mph, with gusts as high as 20 mph.

    Low: 66 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers after 1am. Partly cloudy, with a low around 57.

    Low: 57 °F

    Mostly Clear
    then Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 60. South southeast wind 7 to 10 mph, with gusts as high as 18 mph.
Saturday
Increasing clouds, with a high near 82. South southeast wind 7 to 9 mph, with gusts as high as 16 mph.
Saturday Night
Mostly cloudy, with a low around 58. Southeast wind 3 to 7 mph.
Sunday
Partly sunny, then gradually becoming sunny, with a high near 80. Light and variable wind.
Sunday Night
Mostly clear, with a low around 61. Calm wind becoming south around 6 mph after midnight.
Columbus Day
Sunny, with a high near 88. Southwest wind 7 to 13 mph, with gusts as high as 21 mph.
Monday Night
Mostly clear, with a low around 66. South southwest wind 8 to 10 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 81.
Tuesday Night
A 30 percent chance of showers after 1am. Partly cloudy, with a low around 57.
Wednesday
A 50 percent chance of showers. Partly sunny, with a high near 74.
Wednesday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 56.
Thursday
Showers and thunderstorms likely. Mostly cloudy, with a high near 74.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 53.
Friday
Mostly sunny, with a high near 67.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Delavan IL
 40.37°N 89.55°W (Elev. 600 ft)
Last Update:
7:36 pm CDT Oct 9, 2026
Forecast Valid:
7pm CDT Oct 9, 2026-6pm CDT Oct 16, 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