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

72°F

22°C

Humidity 68%
Wind Speed NE 9 mph
Barometer 30.04 in (1016.9 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 20 Aug 8:54 am CDT
Extended Forecast for

Forest City IL

  • Today

    Today: Sunny, with a high near 81. Northeast wind 3 to 5 mph.

    High: 81 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 61. Calm wind.

    Low: 61 °F

    Mostly Clear

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 4pm. Sunny, with a high near 83. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 83 °F

    Sunny then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Mostly clear, with a low around 65. Calm wind. Chance of precipitation is 30%.

    Low: 65 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: Sunny, with a high near 81. Calm wind becoming north northwest 5 to 7 mph in the morning. Winds could gust as high as 16 mph.

    High: 81 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 61. Light north northwest wind.

    Low: 61 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 79. Calm wind becoming north around 5 mph in the afternoon.

    High: 79 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 81. Northeast wind 3 to 5 mph.
Tonight
Mostly clear, with a low around 61. Calm wind.
Friday
A 20 percent chance of showers and thunderstorms after 4pm. Sunny, with a high near 83. Calm wind becoming southwest around 6 mph in the afternoon.
Friday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Mostly clear, with a low around 65. Calm wind. Chance of precipitation is 30%.
Saturday
Sunny, with a high near 81. Calm wind becoming north northwest 5 to 7 mph in the morning. Winds could gust as high as 16 mph.
Saturday Night
Mostly clear, with a low around 61. Light north northwest wind.
Sunday
Mostly sunny, with a high near 79. Calm wind becoming north around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 58.
Monday
Mostly sunny, with a high near 78.
Monday Night
Partly cloudy, with a low around 60.
Tuesday
Mostly sunny, with a high near 82.
Tuesday Night
Partly cloudy, with a low around 64.
Wednesday
Mostly sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Forest City IL
 40.38°N 89.83°W (Elev. 518 ft)
Last Update:
9:36 am CDT Aug 20, 2026
Forecast Valid:
9am CDT Aug 20, 2026-6pm CDT Aug 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