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.

Overcast

51°F

11°C

Humidity 86%
Wind Speed NW 3 mph
Barometer 29.98 in (1015.6 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 5 Mar 1:54 pm CST
Extended Forecast for

South Pekin IL

  • This Afternoon

    This Afternoon: Patchy fog before 3pm. Otherwise, mostly cloudy, with a high near 59. Light and variable wind.

    High: 59 °F

    Patchy Fog

  • Tonight

    Tonight: A slight chance of showers between 2am and 3am, then a chance of showers and thunderstorms after 3am. Widespread fog, mainly between 9pm and 3am. Otherwise, mostly cloudy, with a low around 49. Calm wind becoming southeast 5 to 7 mph after midnight. Winds could gust as high as 17 mph. Chance of precipitation is 50%.

    Low: 49 °F

    Fog then
    Chance
    Showers and
    Fog

  • Friday

    Friday: Showers and thunderstorms likely, mainly before 11am. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 76. South wind 9 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 76 °F

    Showers
    Likely and
    Patchy Fog
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms between 9pm and midnight, then showers and possibly a thunderstorm after midnight. Low around 54. South wind 10 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 54 °F

    Chance
    T-storms then
    Showers

  • Saturday

    Saturday: A 30 percent chance of showers before 9am. Mostly cloudy, with a temperature falling to around 52 by 5pm. South southwest wind 9 to 14 mph becoming west northwest in the afternoon. Winds could gust as high as 26 mph.

    High: 63 °F⇓

    Chance
    Showers then
    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 35. West northwest wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 17 mph.

    Low: 35 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 64. Light southwest wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 22 mph.

    High: 64 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 46.

    Low: 46 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

Detailed Forecast

This Afternoon
Patchy fog before 3pm. Otherwise, mostly cloudy, with a high near 59. Light and variable wind.
Tonight
A slight chance of showers between 2am and 3am, then a chance of showers and thunderstorms after 3am. Widespread fog, mainly between 9pm and 3am. Otherwise, mostly cloudy, with a low around 49. Calm wind becoming southeast 5 to 7 mph after midnight. Winds could gust as high as 17 mph. Chance of precipitation is 50%.
Friday
Showers and thunderstorms likely, mainly before 11am. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 76. South wind 9 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
A chance of showers and thunderstorms between 9pm and midnight, then showers and possibly a thunderstorm after midnight. Low around 54. South wind 10 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
A 30 percent chance of showers before 9am. Mostly cloudy, with a temperature falling to around 52 by 5pm. South southwest wind 9 to 14 mph becoming west northwest in the afternoon. Winds could gust as high as 26 mph.
Saturday Night
Partly cloudy, with a low around 35. West northwest wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 17 mph.
Sunday
Sunny, with a high near 64. Light southwest wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 22 mph.
Sunday Night
Clear, with a low around 46.
Monday
Sunny, with a high near 75.
Monday Night
A 30 percent chance of showers after midnight. Partly cloudy, with a low around 55.
Tuesday
Showers likely. Partly sunny, with a high near 76.
Tuesday Night
Showers. Mostly cloudy, with a low around 48.
Wednesday
Showers likely. Mostly cloudy, with a high near 60.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
South Pekin IL
 40.5°N 89.65°W (Elev. 509 ft)
Last Update:
1:16 pm CST Mar 5, 2026
Forecast Valid:
1pm CST Mar 5, 2026-6pm CDT Mar 11, 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