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Current conditions at

Peoria - General Downing-Peoria International Airport (KPIA)

Lat: 40.67°NLon: 89.68°WElev: 659ft.

Fair

72°F

22°C

Humidity 44%
Wind Speed SE 3 mph
Barometer 30.01 in (1016.0 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 10 Oct 6:54 pm CDT
Extended Forecast for

Mackinaw IL

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 54. Southeast wind 5 to 8 mph becoming calm after midnight. Winds could gust as high as 15 mph.

    Low: 54 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Sunny, with a high near 82. Calm wind.

    High: 82 °F

    Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 62. Calm wind becoming south around 6 mph in the evening.

    Low: 62 °F

    Increasing
    Clouds

  • Columbus Day

    Columbus Day: Partly sunny through mid morning, then becoming sunny, with a high near 89. Southwest wind 6 to 15 mph, with gusts as high as 22 mph.

    High: 89 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 69. South southwest wind around 11 mph, with gusts as high as 21 mph.

    Low: 69 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 86. Southwest wind 9 to 13 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 86 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers after 1am. Mostly clear, with a low around 61. North northwest wind around 6 mph becoming east northeast after midnight.

    Low: 61 °F

    Mostly Clear
    then Chance
    Showers

  • Wednesday

    Wednesday: Showers likely. Partly sunny, with a high near 76. Chance of precipitation is 70%.

    High: 76 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 58.

    Low: 58 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 54. Southeast wind 5 to 8 mph becoming calm after midnight. Winds could gust as high as 15 mph.
Sunday
Sunny, with a high near 82. Calm wind.
Sunday Night
Increasing clouds, with a low around 62. Calm wind becoming south around 6 mph in the evening.
Columbus Day
Partly sunny through mid morning, then becoming sunny, with a high near 89. Southwest wind 6 to 15 mph, with gusts as high as 22 mph.
Monday Night
Mostly clear, with a low around 69. South southwest wind around 11 mph, with gusts as high as 21 mph.
Tuesday
Sunny, with a high near 86. Southwest wind 9 to 13 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
A 50 percent chance of showers after 1am. Mostly clear, with a low around 61. North northwest wind around 6 mph becoming east northeast after midnight.
Wednesday
Showers likely. Partly sunny, with a high near 76. Chance of precipitation is 70%.
Wednesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 58.
Thursday
Showers likely, mainly before 1pm. Mostly cloudy, with a high near 72. Chance of precipitation is 60%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 51.
Friday
Partly sunny, with a high near 66. Breezy.
Friday Night
Partly cloudy, with a low around 42.
Saturday
Mostly sunny, with a high near 60.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mackinaw IL
 40.54°N 89.36°W (Elev. 650 ft)
Last Update:
6:36 pm CDT Oct 10, 2026
Forecast Valid:
7pm CDT Oct 10, 2026-6pm CDT Oct 17, 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