Current conditions at

Pontiac, Oakland County International Airport (KPTK)

Lat: 42.66°NLon: 83.41°WElev: 981ft.

Mostly Cloudy

40°F

4°C

Humidity 30%
Wind Speed W 9 mph
Barometer 30.44 in (1032.1 mb)
Dewpoint 11°F (-12°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 28 Mar 5:53 pm EDT
Extended Forecast for

South Lyon MI

  • Tonight

    Tonight: Mostly cloudy, with a low around 32. South southwest wind 7 to 9 mph.

    Low: 32 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 56. Southwest wind 9 to 13 mph, with gusts as high as 20 mph.

    High: 56 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 44. South southwest wind around 10 mph, with gusts as high as 18 mph.

    Low: 44 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 66. Southwest wind 8 to 11 mph, with gusts as high as 20 mph.

    High: 66 °F

    Partly Sunny

  • Monday Night

    Monday Night: A chance of rain, with thunderstorms also possible after 2am.  Mostly cloudy, with a low around 58. South southwest wind 8 to 13 mph, with gusts as high as 22 mph.  Chance of precipitation is 50%.

    Low: 58 °F

    Chance Rain
    then Chance
    T-storms

  • Tuesday

    Tuesday: A chance of rain and thunderstorms before 8am, then a chance of rain between 8am and 2pm, then rain and possibly a thunderstorm after 2pm.  High near 72. Breezy.  Chance of precipitation is 80%.

    High: 72 °F

    Breezy.
    Chance
    T-storms then
    Rain

  • Tuesday Night

    Tuesday Night: Rain and possibly a thunderstorm before 8pm, then rain likely.  Low around 36. Chance of precipitation is 80%.

    Low: 36 °F

    Rain

  • Wednesday

    Wednesday: A chance of rain before 8am.  Mostly cloudy, with a high near 45.

    High: 45 °F

    Chance Rain
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 32. South southwest wind 7 to 9 mph.
Sunday
Mostly cloudy, with a high near 56. Southwest wind 9 to 13 mph, with gusts as high as 20 mph.
Sunday Night
Partly cloudy, with a low around 44. South southwest wind around 10 mph, with gusts as high as 18 mph.
Monday
Partly sunny, with a high near 66. Southwest wind 8 to 11 mph, with gusts as high as 20 mph.
Monday Night
A chance of rain, with thunderstorms also possible after 2am. Mostly cloudy, with a low around 58. South southwest wind 8 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.
Tuesday
A chance of rain and thunderstorms before 8am, then a chance of rain between 8am and 2pm, then rain and possibly a thunderstorm after 2pm. High near 72. Breezy. Chance of precipitation is 80%.
Tuesday Night
Rain and possibly a thunderstorm before 8pm, then rain likely. Low around 36. Chance of precipitation is 80%.
Wednesday
A chance of rain before 8am. Mostly cloudy, with a high near 45.
Wednesday Night
Mostly cloudy, with a low around 27.
Thursday
A chance of rain and snow. Mostly cloudy, with a high near 44.
Thursday Night
A chance of rain and snow. Mostly cloudy, with a low around 32.
Friday
A chance of rain. Mostly cloudy, with a high near 53.
Friday Night
A chance of rain. Mostly cloudy, with a low around 40.
Saturday
A chance of rain. Mostly cloudy, with a high near 62.
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ABOUT THIS FORECAST

 
Point Forecast:
South Lyon MI
 42.48°N 83.64°W (Elev. 938 ft)
4:24 pm EDT Mar 28, 2026
6pm EDT Mar 28, 2026-6pm EDT Apr 4, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database