Forest Lake, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Forest Lake, a city in Anoka County, Minnesota.
Today
76°F
Mostly Sunny
Mostly sunny, with a high near 76. West northwest wind around 10 mph.
7-day forecast for Forest Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 76°F | Mostly Sunny | 10 mph WNW | 1% |
| Tonight | 55°F | Partly Cloudy | 0 to 10 mph W | 2% |
| Wednesday | 79°F | Sunny | 0 to 10 mph WSW | 0% |
| Wednesday Night | 59°F | Mostly Clear | 5 to 10 mph SW | 0% |
| Thursday | 84°F | Sunny | 5 to 15 mph SSW | 2% |
| Thursday Night | 64°F | Mostly Clear | 10 to 15 mph SSW | 3% |
| Friday | 87°F | Sunny | 5 to 10 mph SSW | 9% |
| Friday Night | 63°F | Chance Showers And Thunderstorms | 5 to 10 mph SSW | 34% |
| Saturday | 85°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 0 to 5 mph SSW | 15% |
| Saturday Night | 64°F | Chance Showers And Thunderstorms | 5 mph N | 52% |
| Sunday | 84°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 52% |
| Sunday Night | 63°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 0 to 5 mph NNE | 17% |
| Monday | 82°F | Slight Chance Showers And Thunderstorms | 5 mph NE | 21% |
| Monday Night | 62°F | Slight Chance Showers And Thunderstorms | 5 mph NNE | 22% |
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
4b
More local growing data for Forest Lake: nearby ZIP 55025 weather · frost dates · planting calendar · Minnesota frost dates
Nearby towns & communities
Andover
Bethel
Blaine
Centerville
Circle Pines
Columbia Heights
Columbus
Coon Rapids
East Bethel
Fridley
Ham Lake
Hilltop
Lexington
Lino Lakes
Martin Lake
Nowthen
Oak Grove
Ramsey
Spring Lake Park
St. Francis
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 Aug 4, 2026.