National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Pontiac, Oakland County International Airport (KPTK)

Lat: 42.66°NLon: 83.41°WElev: 981ft.

A Few Clouds

54°F

12°C

Humidity 45%
Wind Speed W 15 G 25 mph
Barometer 30.23 in (1024.1 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 4 Nov 10:53 am EST
Extended Forecast for

South Lyon MI

  • Today

    Today: Mostly sunny, with a high near 58. West wind 8 to 11 mph, with gusts as high as 22 mph.

    High: 58 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 42. South wind 5 to 9 mph, with gusts as high as 20 mph.

    Low: 42 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of rain. Cloudy, then gradually becoming mostly sunny, with a high near 60. Breezy, with a southwest wind 10 to 15 mph becoming west northwest 16 to 21 mph in the afternoon. Winds could gust as high as 37 mph. Chance of precipitation is 40%.

    High: 60 °F

    Chance Rain
    and Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 30. West northwest wind 6 to 13 mph, with gusts as high as 24 mph.

    Low: 30 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 52. Light and variable wind becoming west around 6 mph in the afternoon.

    High: 52 °F

    Sunny

  • Thursday Night

    Thursday Night: A chance of rain after 1am. Mostly cloudy, with a low around 38. Chance of precipitation is 40%.

    Low: 38 °F

    Mostly Cloudy
    then Chance
    Rain

  • Friday

    Friday: Rain. High near 57. Chance of precipitation is 90%.

    High: 57 °F

    Rain

  • Friday Night

    Friday Night: A chance of rain. Mostly cloudy, with a low around 36.

    Low: 36 °F

    Chance Rain

  • Saturday

    Saturday: Mostly cloudy, with a high near 46.

    High: 46 °F

    Mostly Cloudy

Detailed Forecast

Today
Mostly sunny, with a high near 58. West wind 8 to 11 mph, with gusts as high as 22 mph.
Tonight
Mostly cloudy, with a low around 42. South wind 5 to 9 mph, with gusts as high as 20 mph.
Wednesday
A chance of rain. Cloudy, then gradually becoming mostly sunny, with a high near 60. Breezy, with a southwest wind 10 to 15 mph becoming west northwest 16 to 21 mph in the afternoon. Winds could gust as high as 37 mph. Chance of precipitation is 40%.
Wednesday Night
Mostly clear, with a low around 30. West northwest wind 6 to 13 mph, with gusts as high as 24 mph.
Thursday
Sunny, with a high near 52. Light and variable wind becoming west around 6 mph in the afternoon.
Thursday Night
A chance of rain after 1am. Mostly cloudy, with a low around 38. Chance of precipitation is 40%.
Friday
Rain. High near 57. Chance of precipitation is 90%.
Friday Night
A chance of rain. Mostly cloudy, with a low around 36.
Saturday
Mostly cloudy, with a high near 46.
Saturday Night
Rain likely, mainly after 1am. Mostly cloudy, with a low around 32.
Sunday
A chance of rain and snow. Mostly cloudy, with a high near 42.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 25.
Monday
Partly sunny, with a high near 37.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
South Lyon MI
 42.48°N 83.64°W (Elev. 938 ft)
Last Update:
10:14 am EST Nov 4, 2025
Forecast Valid:
11am EST Nov 4, 2025-6pm EST Nov 10, 2025
 
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