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
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| 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.