Forest Lake, MN Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Forest Lake, a city in Anoka County, Minnesota.

Overnight

52°F

Light Rain

Rain and patchy fog. Cloudy, with a low around 52. North wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.

7-day forecast for Forest Lake

When	Temp	Forecast	Wind	Precip
Overnight	52°F	Light Rain	5 mph N	91%
Wednesday	55°F	Light Rain	5 to 10 mph NNE	89%
Wednesday Night	43°F	Light Rain then Drizzle Likely	10 to 15 mph NNW	94%
Thursday	48°F	Slight Chance Drizzle then Mostly Cloudy	10 to 15 mph N	16%
Thursday Night	32°F	Mostly Cloudy	5 to 10 mph N	0%
Friday	45°F	Mostly Sunny	0 to 5 mph NNE	0%
Friday Night	28°F	Mostly Clear	0 mph	0%
Saturday	48°F	Mostly Sunny	0 to 5 mph SSW	2%
Saturday Night	35°F	Partly Cloudy	5 mph WSW	4%
Sunday	53°F	Sunny	5 mph W	3%
Sunday Night	36°F	Mostly Clear	0 to 5 mph SW	0%
Monday	57°F	Mostly Sunny	5 to 10 mph WSW	1%
Monday Night	37°F	Mostly Clear	0 to 5 mph WNW	1%
Tuesday	54°F	Sunny	0 to 5 mph WNW	1%

Forecast source: National Weather Service (api.weather.gov) for Forest Lake (45.251, -92.967). Updated through the day.

Growing snapshot for Forest Lake

Last spring frost

May 3

First fall frost

Oct 5

Growing season

154 days

Hardiness zone

More local growing data for Forest Lake: nearby ZIP 55025 weather · frost dates · planting calendar · Minnesota frost dates

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Climate data from the nearest NOAA station, Forest Lake 5Ne, Mn (7.6 mi from Forest Lake). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.