Brookston, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Brookston, a city in St. Louis County, Minnesota.
This Afternoon
60°F
Slight Chance Rain Showers
A slight chance of rain showers. Cloudy. High near 60, with temperatures falling to around 58 in the afternoon. East wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
7-day forecast for Brookston
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 60°F | Slight Chance Rain Showers | 10 mph E | 20% |
| Tonight | 50°F | Chance Rain Showers then Chance Drizzle | 5 to 10 mph E | 34% |
| Saturday | 65°F | Patchy Fog then Mostly Cloudy | 5 mph E | 13% |
| Saturday Night | 47°F | Patchy Fog then Mostly Cloudy | 0 to 5 mph NE | 2% |
| Sunday | 61°F | Mostly Cloudy | 5 to 10 mph NE | 0% |
| Sunday Night | 41°F | Mostly Cloudy | 5 to 10 mph E | 0% |
| Monday | 59°F | Mostly Sunny | 5 to 10 mph E | 0% |
| Monday Night | 38°F | Mostly Clear | 5 to 10 mph E | 0% |
| Tuesday | 62°F | Sunny | 0 to 10 mph E | 0% |
| Tuesday Night | 39°F | Mostly Clear | 0 to 5 mph E | 0% |
| Wednesday | 65°F | Sunny | 0 to 5 mph SE | 0% |
| Wednesday Night | 43°F | Partly Cloudy | 0 to 5 mph SE | 9% |
| Thursday | 67°F | Partly Sunny | 0 to 5 mph S | 9% |
| Thursday Night | 45°F | Partly Cloudy | 0 to 5 mph S | 5% |
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 Sep 19, 2026.