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

Hazardous Weather Conditions

Current conditions at

Pontiac, Oakland County International Airport (KPTK)

Lat: 42.66°NLon: 83.41°WElev: 981ft.

Mostly Cloudy

63°F

17°C

Humidity 87%
Wind Speed S 5 mph
Barometer 30.01 in (1015.8 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 26 Aug 7:53 am EDT
Extended Forecast for

Union Lake MI

  • Today

    Today: A chance of showers and thunderstorms, mainly after 5pm. Partly sunny, with a high near 81. South southwest wind 5 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.

    High: 81 °F

    Partly Sunny
    then Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely before 1am, then a slight chance of showers between 1am and 2am. Partly cloudy, with a low around 63. South southwest wind 6 to 9 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 63 °F

    Showers
    Likely then
    Chance
    Showers

  • Thursday

    Thursday: Partly sunny, with a high near 80. West northwest wind 7 to 9 mph.

    High: 80 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 59. North northeast wind around 6 mph.

    Low: 59 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 78. North wind 5 to 7 mph.

    High: 78 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 85.

    High: 85 °F

    Partly Sunny

Detailed Forecast

Today
A chance of showers and thunderstorms, mainly after 5pm. Partly sunny, with a high near 81. South southwest wind 5 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.
Tonight
Showers and thunderstorms likely before 1am, then a slight chance of showers between 1am and 2am. Partly cloudy, with a low around 63. South southwest wind 6 to 9 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Partly sunny, with a high near 80. West northwest wind 7 to 9 mph.
Thursday Night
Partly cloudy, with a low around 59. North northeast wind around 6 mph.
Friday
Sunny, with a high near 78. North wind 5 to 7 mph.
Friday Night
Mostly clear, with a low around 58.
Saturday
Mostly sunny, with a high near 82.
Saturday Night
Partly cloudy, with a low around 64.
Sunday
Partly sunny, with a high near 85.
Sunday Night
Mostly cloudy, with a low around 69.
Monday
Partly sunny, with a high near 88.
Monday Night
A chance of showers. Mostly cloudy, with a low around 69.
Tuesday
A chance of showers. Mostly sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Union Lake MI
 42.6°N 83.45°W (Elev. 945 ft)
Last Update:
4:24 am EDT Aug 26, 2026
Forecast Valid:
8am EDT Aug 26, 2026-6pm EDT Sep 1, 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