Harman US

Forest Lake, MN Weather & Growing Conditions

This Afternoon
63°F
Slight Chance Drizzle
A slight chance of drizzle before 4pm. Cloudy, with a high near 63. Northeast wind around 10 mph. Chance of precipitation is 20%.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 63°F Slight Chance Drizzle 10 mph NE 15%
Tonight 50°F Mostly Cloudy 5 mph NNE 5%
Sunday 68°F Partly Sunny 5 to 15 mph NE 0%
Sunday Night 47°F Mostly Cloudy 5 to 10 mph NE 0%
Monday 64°F Mostly Cloudy 5 mph ENE 2%
Monday Night 43°F Mostly Cloudy 0 to 5 mph ENE 1%
Tuesday 64°F Sunny 0 to 5 mph E 1%
Tuesday Night 42°F Mostly Clear 0 to 5 mph ESE 0%
Wednesday 67°F Sunny 0 to 5 mph SE 0%
Wednesday Night 48°F Partly Cloudy 0 to 5 mph SE 6%
Thursday 68°F Slight Chance Rain Showers 5 mph SE 21%
Thursday Night 52°F Slight Chance Rain Showers then Mostly Cloudy 0 to 5 mph SE 16%
Friday 73°F Partly Sunny 0 to 5 mph SE 9%
Friday Night 54°F Partly Cloudy 0 to 5 mph SE 7%

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

Growing snapshot for Forest Lake, MN

Last spring frost
May 3
First fall frost
Oct 5
Growing season
154 days
Hardiness zone
4b

Explore more for Forest Lake, MN: full frost dates · planting calendar · Minnesota frost dates

Climate data from the nearest NOAA station, Forest Lake 5Ne, Mn (7.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.