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

Hazardous Weather Conditions

Current conditions at

Peoria - General Downing-Peoria International Airport (KPIA)

Lat: 40.67°NLon: 89.68°WElev: 659ft.

Fair

83°F

28°C

Humidity 63%
Wind Speed Calm
Barometer 29.91 in (1012.4 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 19 Aug 2:54 pm CDT
Extended Forecast for

Peoria Heights IL

Flood Watch August 19, 03:16pm until August 20, 01:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch August 19, 03:16pm until August 20, 01:00am

    NOW until 1:00am Thu

    Flood Watch

  • This Afternoon

    High: 82 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 9pm. Patchy fog after 4am. Otherwise, mostly cloudy, then gradually becoming mostly clear, with a low around 65. Light and variable wind.

    Low: 65 °F

    Chance
    T-storms then
    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 8am. Otherwise, sunny, with a high near 81. Northeast wind 3 to 5 mph.

    High: 81 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 62. Calm wind.

    Low: 62 °F

    Mostly Clear

  • Friday

    Friday: A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 83. Calm wind becoming southwest 5 to 7 mph in the morning. Chance of precipitation is 30%.

    High: 83 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Mostly clear, with a low around 65. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 65 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: Sunny, with a high near 81. Northwest wind 3 to 8 mph. Winds could gust as high as 15 mph.

    High: 81 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

Detailed Forecast

This Afternoon
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 82. Calm wind.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 9pm. Patchy fog after 4am. Otherwise, mostly cloudy, then gradually becoming mostly clear, with a low around 65. Light and variable wind.
Thursday
Patchy fog before 8am. Otherwise, sunny, with a high near 81. Northeast wind 3 to 5 mph.
Thursday Night
Mostly clear, with a low around 62. Calm wind.
Friday
A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 83. Calm wind becoming southwest 5 to 7 mph in the morning. Chance of precipitation is 30%.
Friday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Mostly clear, with a low around 65. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Saturday
Sunny, with a high near 81. Northwest wind 3 to 8 mph. Winds could gust as high as 15 mph.
Saturday Night
Mostly clear, with a low around 63.
Sunday
Mostly sunny, with a high near 79.
Sunday Night
Mostly cloudy, with a low around 62.
Monday
Mostly sunny, with a high near 79.
Monday Night
Partly cloudy, with a low around 64.
Tuesday
Mostly sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Peoria Heights IL
 40.76°N 89.55°W (Elev. 440 ft)
Last Update:
2:16 pm CDT Aug 19, 2026
Forecast Valid:
3pm CDT Aug 19, 2026-6pm CDT Aug 25, 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