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.

Thunderstorm in Vicinity Light Rain

73°F

23°C

Humidity 96%
Wind Speed SE 6 mph
Barometer 30.06 in (1017.6 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Last update 15 Aug 1:54 am CDT
Extended Forecast for

Eureka IL

Flood Watch until August 15, 10:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch until August 15, 10:00am

    NOW until 10:00am Sat

    Flood Watch

  • Overnight

    Low: 72 °F

    Heavy Rain

  • Saturday

    Saturday: Showers and thunderstorms, mainly before 11am. High near 84. South wind around 8 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 84 °F

    Showers then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 3am. Mostly cloudy, with a low around 73. West southwest wind 5 to 8 mph, with gusts as high as 15 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 73 °F

    Chance
    T-storms then
    Showers
    Likely

  • Sunday

    Sunday: A 40 percent chance of showers before 8am. Partly sunny, with a high near 86. West northwest wind 7 to 10 mph, with gusts as high as 15 mph.

    High: 86 °F

    Chance
    Showers then
    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 66. North northwest wind 5 to 9 mph, with gusts as high as 16 mph.

    Low: 66 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 82. North wind 3 to 6 mph.

    High: 82 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 63. Calm wind.

    Low: 63 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

Detailed Forecast

Overnight
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 72. East southeast wind around 7 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Saturday
Showers and thunderstorms, mainly before 11am. High near 84. South wind around 8 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 3am. Mostly cloudy, with a low around 73. West southwest wind 5 to 8 mph, with gusts as high as 15 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
A 40 percent chance of showers before 8am. Partly sunny, with a high near 86. West northwest wind 7 to 10 mph, with gusts as high as 15 mph.
Sunday Night
Partly cloudy, with a low around 66. North northwest wind 5 to 9 mph, with gusts as high as 16 mph.
Monday
Sunny, with a high near 82. North wind 3 to 6 mph.
Monday Night
Mostly clear, with a low around 63. Calm wind.
Tuesday
Mostly sunny, with a high near 83.
Tuesday Night
Showers likely after 1am. Mostly cloudy, with a low around 69. Chance of precipitation is 60%.
Wednesday
A 40 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 82.
Wednesday Night
Partly cloudy, with a low around 61.
Thursday
Mostly sunny, with a high near 75.
Thursday Night
Partly cloudy, with a low around 58.
Friday
Mostly sunny, with a high near 76.
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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:
1:46 am CDT Aug 15, 2026
Forecast Valid:
2am CDT Aug 15, 2026-6pm CDT Aug 21, 2026
 
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