Harman US

Otter Lake, MI Weather & Growing Conditions

Tonight
60°F
Mostly Cloudy
Mostly cloudy. Low around 60, with temperatures rising to around 62 overnight. South wind around 9 mph, with gusts as high as 21 mph.

7-day forecast

WhenTempForecastWindPrecip
Tonight 60°F Mostly Cloudy 9 mph S 3%
Wednesday 69°F Light Rain 10 to 15 mph S 87%
Wednesday Night 50°F Light Rain then Mostly Cloudy 7 to 13 mph SSW 85%
Thursday 60°F Mostly Cloudy then Slight Chance Light Rain 9 to 13 mph SW 22%
Thursday Night 43°F Chance Light Rain 2 to 7 mph W 47%
Friday 53°F Light Rain Likely 3 to 9 mph NW 55%
Friday Night 35°F Chance Light Rain 8 mph NNW 46%
Saturday 50°F Chance Light Rain then Partly Sunny 8 mph NW 29%
Saturday Night 30°F Partly Cloudy 3 mph W 5%
Sunday 55°F Mostly Sunny then Slight Chance Light Rain 5 to 10 mph WSW 15%
Sunday Night 31°F Slight Chance Light Rain then Partly Cloudy 5 to 8 mph WNW 15%
Monday 56°F Mostly Sunny 5 to 10 mph W 11%
Monday Night 36°F Partly Cloudy 9 mph WSW 9%
Tuesday 58°F Mostly Sunny 8 to 13 mph W 3%

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

Growing snapshot for Otter Lake, MI

Last spring frost
May 4
First fall frost
Oct 13
Growing season
161 days
Hardiness zone
6a

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

Climate data from the nearest NOAA station, Lapeer 2W, Mi (11 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.