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

Alpena, Alpena County Regional Airport (KAPN)

Lat: 45.07°NLon: 83.56°WElev: 689ft.

Mostly Cloudy

49°F

9°C

Humidity 90%
Wind Speed Vrbl 5 mph
Barometer 29.94 in (1013.9 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Wind Chill47°F (8°C)
Last update 14 Oct 3:54 am EDT
Extended Forecast for

6 Miles NNW Thunder Bay National Marine Sanctuary MI

  • Today

    Today: Mostly cloudy, with a high near 56. Northwest wind 10 to 15 mph.

    High: 56 °F

    Mostly Cloudy

  • Tonight

    Tonight: Increasing clouds, with a low around 41. Northwest wind 5 to 10 mph becoming northeast after midnight.

    Low: 41 °F

    Increasing
    Clouds

  • Thursday

    Thursday: A 30 percent chance of showers, mainly after 2pm. Mostly cloudy, with a high near 55. Southeast wind 5 to 10 mph.

    High: 55 °F

    Mostly Cloudy
    then Chance
    Showers

  • Thursday Night

    Thursday Night: Showers, mainly after 8pm. Low around 41. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 100%.

    Low: 41 °F

    Showers

  • Friday

    Friday: Showers before 2pm, then a chance of drizzle after 2pm. High near 52. Breezy, with a north wind 10 to 15 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 90%.

    High: 52 °F

    Showers and
    Breezy

  • Friday Night

    Friday Night: A chance of drizzle before 8pm. Partly cloudy, with a low around 34. Breezy.

    Low: 34 °F

    Chance
    Drizzle and
    Breezy then
    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 54.

    High: 54 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 56. Northwest wind 10 to 15 mph.
Tonight
Increasing clouds, with a low around 41. Northwest wind 5 to 10 mph becoming northeast after midnight.
Thursday
A 30 percent chance of showers, mainly after 2pm. Mostly cloudy, with a high near 55. Southeast wind 5 to 10 mph.
Thursday Night
Showers, mainly after 8pm. Low around 41. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 100%.
Friday
Showers before 2pm, then a chance of drizzle after 2pm. High near 52. Breezy, with a north wind 10 to 15 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 90%.
Friday Night
A chance of drizzle before 8pm. Partly cloudy, with a low around 34. Breezy.
Saturday
Sunny, with a high near 54.
Saturday Night
Mostly clear, with a low around 41.
Sunday
Sunny, with a high near 61.
Sunday Night
Partly cloudy, with a low around 47.
Monday
Mostly sunny, with a high near 60.
Monday Night
Partly cloudy, with a low around 45.
Tuesday
Sunny, with a high near 59.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles NNW Thunder Bay National Marine Sanctuary MI
 45.12°N 83.33°W (Elev. 623 ft)
Last Update:
4:11 am EDT Oct 14, 2026
Forecast Valid:
4am EDT Oct 14, 2026-6pm EDT Oct 20, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation