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Hazardous Weather Conditions

Current conditions at

Peoria - General Downing-Peoria International Airport (KPIA)

Lat: 40.67°NLon: 89.68°WElev: 659ft.

Fair

95°F

35°C

Humidity 49%
Wind Speed SW 8 mph
Barometer 29.91 in (1012.1 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index105°F (41°C)
Last update 4 Sep 4:54 pm CDT
Extended Forecast for

Marquette Heights IL

Extreme Heat Warning September 4, 05:11pm until September 5, 07:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning September 4, 05:11pm until September 5, 07:00pm

    NOW until 7:00pm Sat

    Extreme Heat Warning

  • Tonight

    Low: 74 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 95. Heat index values as high as 105. Calm wind becoming north northwest 5 to 7 mph in the afternoon.

    High: 95 °F

    Hot

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 68. East northeast wind 6 to 9 mph, with gusts as high as 17 mph.

    Low: 68 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Sunny, with a high near 87. East wind 5 to 8 mph.

    High: 87 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 63. East wind 5 to 7 mph, with gusts as high as 15 mph.

    Low: 63 °F

    Mostly Clear

  • Labor Day

    Labor Day: Sunny, with a high near 87. East southeast wind 5 to 7 mph.

    High: 87 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 65. East wind 6 to 8 mph, with gusts as high as 15 mph.

    Low: 65 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 94.

    High: 94 °F

    Mostly Sunny

Detailed Forecast

Tonight
Mostly clear, with a low around 74. Light south wind.
Saturday
Sunny and hot, with a high near 95. Heat index values as high as 105. Calm wind becoming north northwest 5 to 7 mph in the afternoon.
Saturday Night
Increasing clouds, with a low around 68. East northeast wind 6 to 9 mph, with gusts as high as 17 mph.
Sunday
Sunny, with a high near 87. East wind 5 to 8 mph.
Sunday Night
Mostly clear, with a low around 63. East wind 5 to 7 mph, with gusts as high as 15 mph.
Labor Day
Sunny, with a high near 87. East southeast wind 5 to 7 mph.
Monday Night
Mostly clear, with a low around 65. East wind 6 to 8 mph, with gusts as high as 15 mph.
Tuesday
Mostly sunny, with a high near 94.
Tuesday Night
Mostly clear, with a low around 74.
Wednesday
Mostly sunny and hot, with a high near 95.
Wednesday Night
A chance of showers. Partly cloudy, with a low around 69.
Thursday
Mostly sunny, with a high near 87.
Thursday Night
Partly cloudy, with a low around 63.
Friday
Mostly sunny, with a high near 87.
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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:
4:36 pm CDT Sep 4, 2026
Forecast Valid:
5pm CDT Sep 4, 2026-6pm CDT Sep 11, 2026
 
Forecast Discussion
 
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Additional Resources

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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