Harman US

Alpena, MI Weather & Growing Conditions

Overnight
44°F
Partly Cloudy
Partly cloudy. Low around 44, with temperatures rising to around 48 overnight. East wind around 0 mph.

7-day forecast

WhenTempForecastWindPrecip
Overnight 44°F Partly Cloudy 0 mph 1%
Saturday 65°F Slight Chance Rain Showers 0 to 10 mph SE 20%
Saturday Night 50°F Chance Rain Showers 0 to 10 mph E 30%
Sunday 65°F Slight Chance Rain Showers then Partly Sunny 5 to 10 mph NE 20%
Sunday Night 46°F Partly Cloudy 5 to 10 mph NE 1%
Monday 57°F Mostly Cloudy 10 mph NE 0%
Monday Night 46°F Mostly Cloudy 5 to 10 mph NE 0%
Tuesday 60°F Mostly Sunny 10 to 15 mph E 1%
Tuesday Night 47°F Partly Cloudy 10 mph E 3%
Wednesday 62°F Mostly Sunny 10 to 15 mph E 11%
Wednesday Night 48°F Mostly Cloudy 5 to 10 mph E 12%
Thursday 64°F Partly Sunny 5 to 10 mph E 11%
Thursday Night 48°F Mostly Cloudy 0 to 5 mph NE 11%
Friday 67°F Mostly Sunny 0 to 5 mph NE 5%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Alpena, MI

Last spring frost
May 5
First fall frost
Oct 17
Growing season
163 days
Hardiness zone
5b

Explore more for Alpena, MI: full frost dates · planting calendar · Michigan frost dates

Climate data from the nearest NOAA station, Alpena Wwtp, Mi (3.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.