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

66°F

19°C

Humidity 81%
Wind Speed S 6 mph
Barometer 30.13 in (1019.8 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 4 Oct 2:54 am CDT
Extended Forecast for

Eureka IL

  • Overnight

    Overnight: Mostly clear, with a steady temperature around 68. South southwest wind around 6 mph.

    Low: 68 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 87. South southwest wind 6 to 15 mph, with gusts as high as 18 mph.

    High: 87 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 60. South wind around 8 mph, with gusts as high as 17 mph.

    Low: 60 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 86. South wind 8 to 17 mph, with gusts as high as 25 mph.

    High: 86 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 62. South wind 8 to 10 mph, with gusts as high as 20 mph.

    Low: 62 °F

    Clear

  • Monday

    Monday: A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Sunny, with a high near 87. Southwest wind 6 to 9 mph. Chance of precipitation is 30%.

    High: 87 °F

    Sunny then
    Chance
    T-storms

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 58. Southwest wind around 6 mph becoming north after midnight. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 58 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 71.

    High: 71 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a steady temperature around 68. South southwest wind around 6 mph.
Saturday
Sunny, with a high near 87. South southwest wind 6 to 15 mph, with gusts as high as 18 mph.
Saturday Night
Clear, with a low around 60. South wind around 8 mph, with gusts as high as 17 mph.
Sunday
Sunny, with a high near 86. South wind 8 to 17 mph, with gusts as high as 25 mph.
Sunday Night
Clear, with a low around 62. South wind 8 to 10 mph, with gusts as high as 20 mph.
Monday
A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Sunny, with a high near 87. Southwest wind 6 to 9 mph. Chance of precipitation is 30%.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 58. Southwest wind around 6 mph becoming north after midnight. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
A 40 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 71.
Tuesday Night
Partly cloudy, with a low around 46.
Wednesday
Sunny, with a high near 70.
Wednesday Night
Mostly clear, with a low around 43.
Thursday
Sunny, with a high near 71.
Thursday Night
Mostly clear, with a low around 46.
Friday
Sunny, with a high near 74.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Eureka IL
 40.71°N 89.27°W (Elev. 774 ft)
Last Update:
3:36 am CDT Oct 4, 2025
Forecast Valid:
3am CDT Oct 4, 2025-6pm CDT Oct 10, 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