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.

Fog/Mist

43°F

6°C

Humidity 89%
Wind Speed W 15 G 22 mph
Barometer 29.68 in (1005.2 mb)
Dewpoint 40°F (4°C)
Visibility 5.00 mi
Wind Chill36°F (2°C)
Last update 6 Jan 1:54 pm CST
Extended Forecast for

South Pekin IL

  • This Afternoon

    This Afternoon: Cloudy, with a high near 48. West wind 9 to 11 mph, with gusts as high as 21 mph.

    High: 48 °F

    Cloudy

  • Tonight

    Tonight: Patchy fog after 5am. Otherwise, cloudy, with a low around 33. West wind 3 to 8 mph. Winds could gust as high as 16 mph.

    Low: 33 °F

    Cloudy then
    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 10am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 53. Light west southwest wind becoming south southwest 5 to 9 mph in the morning. Winds could gust as high as 17 mph.

    High: 53 °F

    Patchy Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 40. South wind around 9 mph, with gusts as high as 18 mph.

    Low: 40 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Showers, mainly after noon. High near 58. South southeast wind 10 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 58 °F

    Chance
    Showers then
    Showers

  • Thursday Night

    Thursday Night: Showers likely, mainly before midnight. Mostly cloudy, with a low around 44. South wind 9 to 18 mph becoming west after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 44 °F

    Showers
    Likely then
    Chance
    Showers

  • Friday

    Friday: Mostly cloudy, with a high near 48. West wind 6 to 8 mph becoming northeast in the afternoon. Winds could gust as high as 18 mph.

    High: 48 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 35.

    Low: 35 °F

    Chance Rain

  • Saturday

    Saturday: A chance of rain before noon, then a chance of rain and snow. Partly sunny, with a high near 41. Chance of precipitation is 40%.

    High: 41 °F

    Chance Rain
    then Chance
    Rain/Snow

Detailed Forecast

This Afternoon
Cloudy, with a high near 48. West wind 9 to 11 mph, with gusts as high as 21 mph.
Tonight
Patchy fog after 5am. Otherwise, cloudy, with a low around 33. West wind 3 to 8 mph. Winds could gust as high as 16 mph.
Wednesday
Patchy fog before 10am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 53. Light west southwest wind becoming south southwest 5 to 9 mph in the morning. Winds could gust as high as 17 mph.
Wednesday Night
Increasing clouds, with a low around 40. South wind around 9 mph, with gusts as high as 18 mph.
Thursday
Showers, mainly after noon. High near 58. South southeast wind 10 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Showers likely, mainly before midnight. Mostly cloudy, with a low around 44. South wind 9 to 18 mph becoming west after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Mostly cloudy, with a high near 48. West wind 6 to 8 mph becoming northeast in the afternoon. Winds could gust as high as 18 mph.
Friday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 35.
Saturday
A chance of rain before noon, then a chance of rain and snow. Partly sunny, with a high near 41. Chance of precipitation is 40%.
Saturday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 23.
Sunday
Mostly sunny, with a high near 33.
Sunday Night
Mostly clear, with a low around 24.
Monday
Sunny, with a high near 43.
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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:
1:22 pm CST Jan 6, 2026
Forecast Valid:
2pm CST Jan 6, 2026-6pm CST Jan 12, 2026
 
Forecast Discussion
 
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Additional Resources

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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