Brookston, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Brookston, a city in St. Louis County, Minnesota.
Today
72°F
Mostly Sunny
Mostly sunny. High near 72, with temperatures falling to around 70 in the afternoon. West wind around 10 mph, with gusts as high as 20 mph.
7-day forecast for Brookston
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 72°F | Mostly Sunny | 10 mph W | 0% |
| Tonight | 48°F | Mostly Clear | 0 to 10 mph SW | 0% |
| Wednesday | 77°F | Sunny | 0 to 10 mph SW | 0% |
| Wednesday Night | 55°F | Mostly Clear | 5 to 10 mph SW | 0% |
| Thursday | 83°F | Sunny | 5 to 15 mph SW | 3% |
| Thursday Night | 62°F | Mostly Clear | 10 mph SW | 12% |
| Friday | 83°F | Patchy Fog then Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 20% |
| Friday Night | 57°F | Chance Showers And Thunderstorms | 0 to 10 mph W | 30% |
| Saturday | 78°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph NW | 22% |
| Saturday Night | 57°F | Chance Rain Showers then Slight Chance Showers And Thunderstorms | 0 to 5 mph NW | 30% |
| Sunday | 76°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph W | 21% |
| Sunday Night | 56°F | Slight Chance Rain Showers then Partly Cloudy | 0 to 5 mph N | 15% |
| Monday | 77°F | Slight Chance Rain Showers | 0 to 5 mph N | 20% |
| Monday Night | 56°F | Slight Chance Rain Showers | 0 to 5 mph N | 20% |
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 Aug 4, 2026.