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

78°F

26°C

Humidity 76%
Wind Speed Calm
Barometer 30.04 in (1016.7 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 14 Jul 8:54 pm CDT
Extended Forecast for

Marquette Heights IL

  • Tonight

    Tonight: Mostly clear, with a low around 70. Calm wind.

    Low: 70 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly between 4pm and 5pm. Mostly sunny, with a high near 89. Calm wind becoming south southeast around 6 mph in the morning.

    High: 89 °F

    Sunny then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 10 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 72. South wind around 5 mph becoming calm in the evening.

    Low: 72 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 91. Heat index values as high as 101. Southwest wind 3 to 7 mph.

    High: 91 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Southwest wind around 6 mph. Chance of precipitation is 50%.

    Low: 72 °F

    Chance
    T-storms

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 86. West wind 6 to 8 mph.

    High: 86 °F

    Partly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 66. Northeast wind around 6 mph.

    Low: 66 °F

    Chance
    T-storms

  • Friday

    Friday: Partly sunny, with a high near 84.

    High: 84 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 69.

    Low: 69 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 70. Calm wind.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly between 4pm and 5pm. Mostly sunny, with a high near 89. Calm wind becoming south southeast around 6 mph in the morning.
Tuesday Night
A 10 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 72. South wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 91. Heat index values as high as 101. Southwest wind 3 to 7 mph.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Southwest wind around 6 mph. Chance of precipitation is 50%.
Thursday
A 50 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 86. West wind 6 to 8 mph.
Thursday Night
A 30 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 66. Northeast wind around 6 mph.
Friday
Partly sunny, with a high near 84.
Friday Night
Mostly cloudy, with a low around 69.
Saturday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 89.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 71.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 89.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 89.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Marquette Heights IL
 40.61°N 89.59°W (Elev. 614 ft)
Last Update:
7:40 pm CDT Jul 14, 2025
Forecast Valid:
9pm CDT Jul 14, 2025-6pm CDT Jul 21, 2025
 
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