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

93°F

34°C

Humidity 56%
Wind Speed SW 7 mph
Barometer 30.01 in (1015.5 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index105°F (41°C)
Last update 16 Aug 5:54 pm CDT
Extended Forecast for

Eureka IL

Heat Advisory until August 17, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory until August 17, 08:00pm

    NOW until 8:00pm Sun

    Heat Advisory

  • Tonight

    Low: 73 °F

    Chance
    T-storms

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91. Heat index values as high as 103. Light and variable wind.

    High: 91 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 72. Calm wind becoming southeast around 5 mph after midnight.

    Low: 72 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 93. Heat index values as high as 105. Southeast wind 5 to 8 mph becoming southwest in the afternoon.

    High: 93 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 73. South southwest wind around 5 mph.

    Low: 73 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 92. West northwest wind 5 to 8 mph.

    High: 92 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 67. North northeast wind around 6 mph.

    Low: 67 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 81.

    High: 81 °F

    Partly Sunny

Detailed Forecast

Tonight
A 30 percent chance of showers and thunderstorms, mainly before 2am. Partly cloudy, with a low around 73. South southwest wind around 6 mph.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91. Heat index values as high as 103. Light and variable wind.
Sunday Night
Partly cloudy, with a low around 72. Calm wind becoming southeast around 5 mph after midnight.
Monday
Sunny, with a high near 93. Heat index values as high as 105. Southeast wind 5 to 8 mph becoming southwest in the afternoon.
Monday Night
Mostly clear, with a low around 73. South southwest wind around 5 mph.
Tuesday
Mostly sunny, with a high near 92. West northwest wind 5 to 8 mph.
Tuesday Night
Partly cloudy, with a low around 67. North northeast wind around 6 mph.
Wednesday
Partly sunny, with a high near 81.
Wednesday Night
Partly cloudy, with a low around 61.
Thursday
Sunny, with a high near 82.
Thursday Night
Clear, with a low around 61.
Friday
Sunny, with a high near 84.
Friday Night
Mostly clear, with a low around 63.
Saturday
Sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Eureka IL
 40.71°N 89.27°W (Elev. 774 ft)
Last Update:
6:40 pm CDT Aug 16, 2025
Forecast Valid:
6pm CDT Aug 16, 2025-6pm CDT Aug 23, 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