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

Peoria - General Downing-Peoria International Airport (KPIA)

Lat: 40.67°NLon: 89.68°WElev: 659ft.

Fair

68°F

20°C

Humidity 31%
Wind Speed E 12 G 23 mph
Barometer 30.12 in (1019.7 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 21 May 6:54 pm CDT
Extended Forecast for

Washington IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 52. East wind 9 to 11 mph, with gusts as high as 23 mph.

    Low: 52 °F

    Mostly Cloudy

  • Friday

    Friday: A 20 percent chance of showers after 3pm. Mostly cloudy, with a high near 70. East wind around 11 mph, with gusts as high as 22 mph.

    High: 70 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers, mainly between 8pm and 4am. Cloudy, with a low around 55. Northeast wind 6 to 9 mph, with gusts as high as 17 mph.

    Low: 55 °F

    Chance
    Showers

  • Saturday

    Saturday: Cloudy, then gradually becoming mostly sunny, with a high near 77. North northeast wind around 6 mph becoming northwest in the afternoon.

    High: 77 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 57. Light and variable wind.

    Low: 57 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 30 percent chance of showers. Partly sunny, with a high near 79. Calm wind becoming south southwest around 5 mph.

    High: 79 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 56. Calm wind.

    Low: 56 °F

    Partly Cloudy

  • Memorial Day

    Memorial Day: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 52. East wind 9 to 11 mph, with gusts as high as 23 mph.
Friday
A 20 percent chance of showers after 3pm. Mostly cloudy, with a high near 70. East wind around 11 mph, with gusts as high as 22 mph.
Friday Night
A 30 percent chance of showers, mainly between 8pm and 4am. Cloudy, with a low around 55. Northeast wind 6 to 9 mph, with gusts as high as 17 mph.
Saturday
Cloudy, then gradually becoming mostly sunny, with a high near 77. North northeast wind around 6 mph becoming northwest in the afternoon.
Saturday Night
Mostly cloudy, with a low around 57. Light and variable wind.
Sunday
A 30 percent chance of showers. Partly sunny, with a high near 79. Calm wind becoming south southwest around 5 mph.
Sunday Night
Partly cloudy, with a low around 56. Calm wind.
Memorial Day
Mostly sunny, with a high near 83.
Monday Night
Partly cloudy, with a low around 59.
Tuesday
A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 83.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 83.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 63.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 85.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Washington IL
 40.72°N 89.44°W (Elev. 778 ft)
Last Update:
7:36 pm CDT May 21, 2026
Forecast Valid:
7pm CDT May 21, 2026-6pm CDT May 28, 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