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.

Overcast

66°F

19°C

Humidity 78%
Wind Speed SW 5 mph
Barometer 29.97 in (1014.4 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 20 Jun 1:54 am CDT
Extended Forecast for

Eureka IL

  • Overnight

    Overnight: A 30 percent chance of showers, mainly before 4am. Mostly cloudy, with a low around 62. West wind 3 to 5 mph.

    Low: 62 °F

    Chance
    Showers

  • Saturday

    Saturday: Sunny, with a high near 79. West northwest wind 5 to 9 mph, with gusts as high as 17 mph.

    High: 79 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 57. Northwest wind around 5 mph becoming calm in the evening.

    Low: 57 °F

    Partly Cloudy

  • Sunday

    Sunday: Showers, with thunderstorms also possible after 1pm. Some of the storms could produce heavy rainfall. High near 71. East wind 6 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    High: 71 °F

    Showers
    Likely then
    Heavy Rain

  • Sunday Night

    Sunday Night: Showers likely, mainly before 1am. The rain could be heavy at times. Mostly cloudy, with a low around 56. Northeast wind 14 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 70%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 56 °F

    Heavy Rain

  • Monday

    Monday: Partly sunny, with a high near 75. North northeast wind 11 to 14 mph, with gusts as high as 21 mph.

    High: 75 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 52. Northeast wind 3 to 8 mph. Winds could gust as high as 15 mph.

    Low: 52 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

Detailed Forecast

Overnight
A 30 percent chance of showers, mainly before 4am. Mostly cloudy, with a low around 62. West wind 3 to 5 mph.
Saturday
Sunny, with a high near 79. West northwest wind 5 to 9 mph, with gusts as high as 17 mph.
Saturday Night
Partly cloudy, with a low around 57. Northwest wind around 5 mph becoming calm in the evening.
Sunday
Showers, with thunderstorms also possible after 1pm. Some of the storms could produce heavy rainfall. High near 71. East wind 6 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Sunday Night
Showers likely, mainly before 1am. The rain could be heavy at times. Mostly cloudy, with a low around 56. Northeast wind 14 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 70%. New precipitation amounts between a half and three quarters of an inch possible.
Monday
Partly sunny, with a high near 75. North northeast wind 11 to 14 mph, with gusts as high as 21 mph.
Monday Night
Mostly clear, with a low around 52. Northeast wind 3 to 8 mph. Winds could gust as high as 15 mph.
Tuesday
Mostly sunny, with a high near 77.
Tuesday Night
Mostly clear, with a low around 57.
Wednesday
Sunny, with a high near 78.
Wednesday Night
Partly cloudy, with a low around 57.
Thursday
Mostly sunny, with a high near 77.
Thursday Night
Partly cloudy, with a low around 56.
Friday
Mostly sunny, with a high near 78.
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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:
1:51 am CDT Jun 20, 2026
Forecast Valid:
1am CDT Jun 20, 2026-6pm CDT Jun 26, 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