Brookston, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Brookston, a city in St. Louis County, Minnesota.
Overnight
49°F
Light Rain
Rain before 1am, then rain and patchy fog. Cloudy, with a low around 49. North wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Brookston
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 49°F | Light Rain | 5 to 10 mph N | 87% |
| Wednesday | 52°F | Rain | 10 mph N | 93% |
| Wednesday Night | 37°F | Light Rain | 10 to 15 mph N | 92% |
| Thursday | 41°F | Mostly Cloudy | 10 to 15 mph N | 11% |
| Thursday Night | 23°F | Mostly Cloudy | 0 to 5 mph NE | 1% |
| Friday | 41°F | Sunny | 0 mph | 0% |
| Friday Night | 22°F | Mostly Clear | 0 mph | 0% |
| Saturday | 46°F | Mostly Sunny | 0 to 10 mph SW | 4% |
| Saturday Night | 30°F | Partly Cloudy | 5 mph W | 8% |
| Sunday | 49°F | Mostly Sunny | 5 to 10 mph W | 5% |
| Sunday Night | 30°F | Mostly Cloudy | 0 to 5 mph SW | 0% |
| Monday | 53°F | Mostly Sunny | 5 to 10 mph SW | 1% |
| Monday Night | 32°F | Partly Cloudy | 5 mph W | 1% |
| Tuesday | 49°F | Mostly Sunny | 5 to 10 mph NW | 3% |
Forecast source: National Weather Service (api.weather.gov) for Brookston (46.865, -92.602). Updated through the day.
Growing snapshot for Brookston
Last spring frost
May 29
First fall frost
Sep 18
Growing season
111 days
Hardiness zone
4a
More local growing data for Brookston: nearby ZIP 55702 weather · frost dates · planting calendar · Minnesota frost dates
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Climate data from the nearest NOAA station, Floodwood 3 Ne, Mn (11 mi from Brookston). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.