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.

Fair

59°F

15°C

Humidity 75%
Wind Speed SE 3 mph
Barometer 30.18 in (1021.7 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 11 Oct 12:53 am EDT
Extended Forecast for

Union Lake MI

  • Overnight

    Overnight: Mostly cloudy, with a low around 57. South southeast wind around 7 mph.

    Low: 57 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of rain between 7am and 2pm. Cloudy, with a high near 66. East southeast wind 6 to 8 mph. Chance of precipitation is 50%.

    High: 66 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 53. Calm wind.

    Low: 53 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Columbus Day

    Columbus Day: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 77. Light southwest wind becoming south southwest 5 to 10 mph in the morning. Winds could gust as high as 18 mph.

    High: 77 °F

    Patchy Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Rain likely after 2am. Mostly cloudy, with a low around 62. Southwest wind around 9 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 62 °F

    Mostly Cloudy
    then Rain
    Likely

  • Tuesday

    Tuesday: Rain likely, mainly before 8am. Partly sunny, with a high near 77. Chance of precipitation is 60%.

    High: 77 °F

    Rain Likely
    then Chance
    Rain

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 52.

    Low: 52 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 66.

    High: 66 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 57. South southeast wind around 7 mph.
Sunday
A chance of rain between 7am and 2pm. Cloudy, with a high near 66. East southeast wind 6 to 8 mph. Chance of precipitation is 50%.
Sunday Night
Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 53. Calm wind.
Columbus Day
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 77. Light southwest wind becoming south southwest 5 to 10 mph in the morning. Winds could gust as high as 18 mph.
Monday Night
Rain likely after 2am. Mostly cloudy, with a low around 62. Southwest wind around 9 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Rain likely, mainly before 8am. Partly sunny, with a high near 77. Chance of precipitation is 60%.
Tuesday Night
Mostly cloudy, with a low around 52.
Wednesday
Partly sunny, with a high near 66.
Wednesday Night
Partly cloudy, with a low around 48.
Thursday
A chance of rain after 2pm. Partly sunny, with a high near 64.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 46.
Friday
A chance of rain. Mostly cloudy, with a high near 61.
Friday Night
A chance of rain. Mostly cloudy, with a low around 40. Breezy.
Saturday
Partly sunny, with a high near 53.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Union Lake MI
 42.62°N 83.45°W (Elev. 951 ft)
Last Update:
4:24 pm EDT Oct 10, 2026
Forecast Valid:
1am EDT Oct 11, 2026-6pm EDT 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