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.

Overcast

38°F

3°C

Humidity 93%
Wind Speed W 9 mph
Barometer 29.91 in (1013.5 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 7 Jan 3:53 pm EST
Extended Forecast for

Union Lake MI

  • This Afternoon

    This Afternoon: Cloudy, with a high near 39. West southwest wind around 8 mph.

    High: 39 °F

    Cloudy

  • Tonight

    Tonight: Areas of fog after 7pm. Otherwise, mostly cloudy, with a low around 30. Calm wind becoming south around 5 mph after midnight.

    Low: 30 °F

    Areas Fog

  • Thursday

    Thursday: Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 48. South wind 6 to 8 mph.

    High: 48 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Thursday Night

    Thursday Night: Showers. Low around 45. South southeast wind 8 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 45 °F

    Showers

  • Friday

    Friday: Showers likely, mainly before 1pm. Mostly cloudy, with a high near 57. South southwest wind 10 to 13 mph becoming west northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 57 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

  • Saturday

    Saturday: Rain. High near 40. Chance of precipitation is 80%.

    High: 40 °F

    Rain

  • Saturday Night

    Saturday Night: A chance of snow. Mostly cloudy, with a low around 24.

    Low: 24 °F

    Chance Snow

  • Sunday

    Sunday: A chance of snow before 1pm. Mostly cloudy, with a high near 30.

    High: 30 °F

    Chance Snow

Detailed Forecast

This Afternoon
Cloudy, with a high near 39. West southwest wind around 8 mph.
Tonight
Areas of fog after 7pm. Otherwise, mostly cloudy, with a low around 30. Calm wind becoming south around 5 mph after midnight.
Thursday
Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 48. South wind 6 to 8 mph.
Thursday Night
Showers. Low around 45. South southeast wind 8 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Showers likely, mainly before 1pm. Mostly cloudy, with a high near 57. South southwest wind 10 to 13 mph becoming west northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Mostly cloudy, with a low around 32.
Saturday
Rain. High near 40. Chance of precipitation is 80%.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 24.
Sunday
A chance of snow before 1pm. Mostly cloudy, with a high near 30.
Sunday Night
Mostly cloudy, with a low around 21.
Monday
Partly sunny, with a high near 34.
Monday Night
Mostly cloudy, with a low around 27.
Tuesday
Mostly cloudy, with a high near 37.
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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:
3:25 pm EST Jan 7, 2026
Forecast Valid:
4pm EST Jan 7, 2026-6pm EST Jan 13, 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