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

66°F

19°C

Humidity 88%
Wind Speed Calm
Barometer 30.08 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 28 Aug 12:54 am CDT
Extended Forecast for

Washington ILSimilar City Names

  • Overnight

    Overnight: Patchy fog after 2am. Otherwise, mostly clear, with a low around 60. Calm wind.

    Low: 60 °F

    Patchy Fog

  • Friday

    Friday: Patchy fog before 8am. Otherwise, sunny, with a high near 83. Calm wind.

    High: 83 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 61. Calm wind becoming south southeast around 5 mph after midnight.

    Low: 61 °F

    Mostly Clear

  • Saturday

    Saturday: Increasing clouds, with a high near 83. South wind 5 to 9 mph, with gusts as high as 15 mph.

    High: 83 °F

    Increasing
    Clouds

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 69. South southeast wind 7 to 13 mph, with gusts as high as 22 mph.

    Low: 69 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 90. South wind around 14 mph, with gusts as high as 23 mph.

    High: 90 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 73. South wind 10 to 14 mph, with gusts as high as 24 mph.

    Low: 73 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 93.

    High: 93 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 75.

    Low: 75 °F

    Partly Cloudy

Detailed Forecast

Overnight
Patchy fog after 2am. Otherwise, mostly clear, with a low around 60. Calm wind.
Friday
Patchy fog before 8am. Otherwise, sunny, with a high near 83. Calm wind.
Friday Night
Mostly clear, with a low around 61. Calm wind becoming south southeast around 5 mph after midnight.
Saturday
Increasing clouds, with a high near 83. South wind 5 to 9 mph, with gusts as high as 15 mph.
Saturday Night
Partly cloudy, with a low around 69. South southeast wind 7 to 13 mph, with gusts as high as 22 mph.
Sunday
Mostly sunny, with a high near 90. South wind around 14 mph, with gusts as high as 23 mph.
Sunday Night
Partly cloudy, with a low around 73. South wind 10 to 14 mph, with gusts as high as 24 mph.
Monday
Mostly sunny, with a high near 93.
Monday Night
Partly cloudy, with a low around 75.
Tuesday
Sunny, with a high near 93.
Tuesday Night
Mostly clear, with a low around 74.
Wednesday
Sunny, with a high near 92.
Wednesday Night
Partly cloudy, with a low around 73.
Thursday
Mostly sunny, with a high near 91.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Washington ILSimilar City Names
 40.69°N 89.44°W (Elev. 728 ft)
Last Update:
12:51 am CDT Aug 28, 2026
Forecast Valid:
1am CDT Aug 28, 2026-6pm CDT Sep 3, 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