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

Areas of Dangerous Heat and Heavy Rain with Possible Flooding into this Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend with heat advisories in effect. Heavy to excessive rainfall occurring at times through Sunday could bring areas of flooding to parts of the upper Midwest, central Great Lakes, southern New England and Virginia/North Carolina tidewater region. Read More >

Hazardous Weather Conditions

Current conditions at

Peoria - General Downing-Peoria International Airport (KPIA)

Lat: 40.67°NLon: 89.68°WElev: 659ft.

Fair

82°F

28°C

Humidity 79%
Wind Speed NW 3 mph
Barometer 30.15 in (1020.3 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 17 Sep 7:54 pm CDT
Extended Forecast for

East Peoria IL

  • Tonight

    Tonight: Increasing clouds, with a low around 68. Northeast wind 6 to 8 mph, with gusts as high as 16 mph.

    Low: 68 °F

    Increasing
    Clouds

  • Friday

    Friday: A 40 percent chance of showers, mainly before 1pm. Partly sunny, with a high near 81. East wind around 7 mph.

    High: 81 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms, mainly after 5am. Partly cloudy, with a low around 69. East southeast wind around 9 mph, with gusts as high as 17 mph.

    Low: 69 °F

    Chance
    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm. Increasing clouds, with a high near 87. South southwest wind around 8 mph, with gusts as high as 15 mph. Chance of precipitation is 40%.

    High: 87 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 69. South wind around 5 mph becoming light and variable in the evening. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 69 °F

    Showers
    Likely

  • Sunday

    Sunday: Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 78. Light north northeast wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 17 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 78 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 62. Northeast wind 10 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 62 °F

    Chance
    T-storms then
    Showers
    Likely

  • Monday

    Monday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers. Mostly cloudy, with a high near 69. Chance of precipitation is 60%.

    High: 69 °F

    Showers
    Likely

  • Monday Night

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

    Low: 57 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

Tonight
Increasing clouds, with a low around 68. Northeast wind 6 to 8 mph, with gusts as high as 16 mph.
Friday
A 40 percent chance of showers, mainly before 1pm. Partly sunny, with a high near 81. East wind around 7 mph.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly after 5am. Partly cloudy, with a low around 69. East southeast wind around 9 mph, with gusts as high as 17 mph.
Saturday
A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm. Increasing clouds, with a high near 87. South southwest wind around 8 mph, with gusts as high as 15 mph. Chance of precipitation is 40%.
Saturday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 69. South wind around 5 mph becoming light and variable in the evening. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 78. Light north northeast wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 17 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 62. Northeast wind 10 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Monday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers. Mostly cloudy, with a high near 69. Chance of precipitation is 60%.
Monday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 57.
Tuesday
Partly sunny, with a high near 67.
Tuesday Night
Partly cloudy, with a low around 54.
Wednesday
Mostly sunny, with a high near 71.
Wednesday Night
Partly cloudy, with a low around 56.
Thursday
Mostly sunny, with a high near 73.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
East Peoria IL
 40.67°N 89.53°W (Elev. 499 ft)
Last Update:
7:56 pm CDT Sep 17, 2026
Forecast Valid:
8pm CDT Sep 17, 2026-6pm CDT Sep 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

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Chance of Precipitation