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

80°F

27°C

Humidity 29%
Wind Speed SW 15 mph
Barometer 29.71 in (1005.9 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 21 Mar 5:54 pm CDT
Extended Forecast for

Mackinaw ILSimilar City Names

  • Tonight

    Tonight: Mostly clear, with a low around 58. South southwest wind around 10 mph, with gusts as high as 21 mph.

    Low: 58 °F

    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of showers after 1pm. Partly sunny, with a high near 69. Breezy, with a west southwest wind 7 to 12 mph becoming north northeast 16 to 21 mph in the afternoon. Winds could gust as high as 31 mph.

    High: 69 °F

    Partly Sunny
    then Slight
    Chance
    Showers and
    Breezy

  • Sunday Night

    Sunday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 30. Blustery, with a north northeast wind 15 to 20 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 31 mph.

    Low: 30 °F

    Decreasing
    Clouds and
    Blustery then
    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 51. North northeast wind 6 to 8 mph.

    High: 51 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 33. East southeast wind 3 to 6 mph.

    Low: 33 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 60. South wind 6 to 10 mph, with gusts as high as 16 mph.

    High: 60 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 42. South southeast wind around 7 mph, with gusts as high as 15 mph.

    Low: 42 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 65.

    High: 65 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 49.

    Low: 49 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 58. South southwest wind around 10 mph, with gusts as high as 21 mph.
Sunday
A 20 percent chance of showers after 1pm. Partly sunny, with a high near 69. Breezy, with a west southwest wind 7 to 12 mph becoming north northeast 16 to 21 mph in the afternoon. Winds could gust as high as 31 mph.
Sunday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 30. Blustery, with a north northeast wind 15 to 20 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 31 mph.
Monday
Mostly sunny, with a high near 51. North northeast wind 6 to 8 mph.
Monday Night
Mostly cloudy, with a low around 33. East southeast wind 3 to 6 mph.
Tuesday
Partly sunny, with a high near 60. South wind 6 to 10 mph, with gusts as high as 16 mph.
Tuesday Night
Mostly cloudy, with a low around 42. South southeast wind around 7 mph, with gusts as high as 15 mph.
Wednesday
Partly sunny, with a high near 65.
Wednesday Night
Mostly cloudy, with a low around 49.
Thursday
Mostly sunny, with a high near 73.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 36.
Friday
Partly sunny, with a high near 51.
Friday Night
Partly cloudy, with a low around 31.
Saturday
Mostly sunny, with a high near 54.
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ABOUT THIS FORECAST

 
Point Forecast:
Mackinaw ILSimilar City Names
 40.54°N 89.36°W (Elev. 650 ft)
Last Update:
5:46 pm CDT Mar 21, 2026
Forecast Valid:
6pm CDT Mar 21, 2026-6pm CDT Mar 28, 2026
 
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Additional Resources

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Chance of Precipitation