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

61°F

16°C

Humidity 52%
Wind Speed E 15 G 24 mph
Barometer 30.19 in (1022.4 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 20 May 8:54 pm CDT
Extended Forecast for

Washington IL

  • Tonight

    Tonight: Increasing clouds, with a low around 45. Northeast wind 8 to 13 mph, with gusts as high as 23 mph.

    Low: 45 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Mostly sunny, with a high near 70. East wind 9 to 13 mph, with gusts as high as 21 mph.

    High: 70 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 49. East northeast wind 10 to 13 mph, with gusts as high as 22 mph.

    Low: 49 °F

    Increasing
    Clouds

  • Friday

    Friday: Showers likely after 1pm. Mostly cloudy, with a high near 68. East wind around 13 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 68 °F

    Mostly Cloudy
    then Showers
    Likely

  • Friday Night

    Friday Night: Showers likely before 1am. Mostly cloudy, with a low around 54. East northeast wind 6 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 54 °F

    Showers
    Likely

  • Saturday

    Saturday: Partly sunny, with a high near 76. East wind 5 to 8 mph becoming west southwest in the afternoon. Winds could gust as high as 15 mph.

    High: 76 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 56. West southwest wind around 5 mph becoming calm in the evening.

    Low: 56 °F

    Chance
    Showers

  • Sunday

    Sunday: Partly sunny, with a high near 78.

    High: 78 °F

    Partly Sunny

  • Sunday Night

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

    Low: 56 °F

    Partly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 45. Northeast wind 8 to 13 mph, with gusts as high as 23 mph.
Thursday
Mostly sunny, with a high near 70. East wind 9 to 13 mph, with gusts as high as 21 mph.
Thursday Night
Increasing clouds, with a low around 49. East northeast wind 10 to 13 mph, with gusts as high as 22 mph.
Friday
Showers likely after 1pm. Mostly cloudy, with a high near 68. East wind around 13 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Showers likely before 1am. Mostly cloudy, with a low around 54. East northeast wind 6 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Partly sunny, with a high near 76. East wind 5 to 8 mph becoming west southwest in the afternoon. Winds could gust as high as 15 mph.
Saturday Night
A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 56. West southwest wind around 5 mph becoming calm in the evening.
Sunday
Partly sunny, with a high near 78.
Sunday Night
Partly cloudy, with a low around 56.
Memorial Day
Partly sunny, with a high near 82.
Monday Night
Mostly cloudy, with a low around 59.
Tuesday
A chance of showers. Partly sunny, with a high near 82.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 62.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Washington IL
 40.71°N 89.41°W (Elev. 751 ft)
Last Update:
7:36 pm CDT May 20, 2026
Forecast Valid:
9pm CDT May 20, 2026-6pm CDT May 27, 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