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

51°F

11°C

Humidity 92%
Wind Speed Calm
Barometer 30.03 in (1016.7 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 29 Sep 5:54 am CDT
Extended Forecast for

Spring Bay IL

  • Today

    Today: Mostly sunny, with a high near 78. Calm wind becoming south 5 to 7 mph in the morning.

    High: 78 °F

    Mostly Sunny

  • Tonight

    Tonight: A 30 percent chance of showers, mainly after 3am. Increasing clouds, with a low around 63. South wind 6 to 9 mph, with gusts as high as 18 mph.

    Low: 63 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A 50 percent chance of showers. Cloudy, with a high near 74. South wind around 8 mph, with gusts as high as 17 mph.

    High: 74 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 68. South southeast wind 6 to 9 mph, with gusts as high as 16 mph.

    Low: 68 °F

    Cloudy then
    Chance
    Showers

  • Thursday

    Thursday: Showers likely, mainly after 1pm. Cloudy, with a high near 76. Southwest wind around 6 mph. Chance of precipitation is 70%. New precipitation amounts between three quarters and one inch possible.

    High: 76 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers. Low around 61. North northeast wind 5 to 9 mph, with gusts as high as 15 mph. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.

    Low: 61 °F

    Showers

  • Friday

    Friday: A 50 percent chance of showers. Mostly cloudy, with a high near 66. North northeast wind around 11 mph, with gusts as high as 20 mph.

    High: 66 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 78. Calm wind becoming south 5 to 7 mph in the morning.
Tonight
A 30 percent chance of showers, mainly after 3am. Increasing clouds, with a low around 63. South wind 6 to 9 mph, with gusts as high as 18 mph.
Wednesday
A 50 percent chance of showers. Cloudy, with a high near 74. South wind around 8 mph, with gusts as high as 17 mph.
Wednesday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 68. South southeast wind 6 to 9 mph, with gusts as high as 16 mph.
Thursday
Showers likely, mainly after 1pm. Cloudy, with a high near 76. Southwest wind around 6 mph. Chance of precipitation is 70%. New precipitation amounts between three quarters and one inch possible.
Thursday Night
Showers. Low around 61. North northeast wind 5 to 9 mph, with gusts as high as 15 mph. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.
Friday
A 50 percent chance of showers. Mostly cloudy, with a high near 66. North northeast wind around 11 mph, with gusts as high as 20 mph.
Friday Night
Partly cloudy, with a low around 52.
Saturday
Mostly sunny, with a high near 66.
Saturday Night
Mostly cloudy, with a low around 54.
Sunday
Mostly sunny, with a high near 66.
Sunday Night
Mostly clear, with a low around 49.
Monday
Sunny, with a high near 64.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Spring Bay IL
 40.83°N 89.52°W (Elev. 443 ft)
Last Update:
5:47 am CDT Sep 29, 2026
Forecast Valid:
6am CDT Sep 29, 2026-6pm CDT Oct 5, 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