Grasston, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Grasston, a city in Pine County, Minnesota.
This Afternoon
58°F
Light Rain
Rain and patchy fog. Cloudy. High near 58, with temperatures falling to around 53 in the afternoon. North wind around 10 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Grasston
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 58°F | Light Rain | 10 mph N | 100% |
| Tonight | 48°F | Rain | 10 mph NNE | 99% |
| Wednesday | 54°F | Rain | 10 mph NNE | 97% |
| Wednesday Night | 41°F | Light Rain | 10 to 15 mph N | 90% |
| Thursday | 47°F | Slight Chance Light Rain then Mostly Cloudy | 10 to 15 mph N | 19% |
| Thursday Night | 29°F | Mostly Cloudy | 0 to 10 mph NNE | 0% |
| Friday | 44°F | Mostly Sunny | 0 to 5 mph NE | 0% |
| Friday Night | 25°F | Partly Cloudy | 0 mph | 0% |
| Saturday | 50°F | Mostly Sunny | 0 to 5 mph SW | 2% |
| Saturday Night | 32°F | Partly Cloudy | 0 to 5 mph WSW | 10% |
| Sunday | 54°F | Mostly Sunny | 5 to 10 mph W | 8% |
| Sunday Night | 32°F | Partly Cloudy | 0 to 5 mph SW | 0% |
| Monday | 55°F | Mostly Sunny | 5 to 10 mph SW | 1% |
| Monday Night | 34°F | Mostly Clear | 5 mph WNW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Grasston (45.797, -93.155). Updated through the day.
Growing snapshot for Grasston
Last spring frost
May 9
First fall frost
Sep 30
Growing season
142 days
Hardiness zone
4a
More local growing data for Grasston: nearby ZIP 55030 weather · frost dates · planting calendar · Minnesota frost dates
Nearby towns & communities
Askov
Bruno
Denham
Finlayson
Henriette
Hinckley
Kerrick
Pine City
Quamba
Rock Creek
Rutledge
Sandstone
Willow River
Climate data from the nearest NOAA station, Mora, Mn (9.6 mi from Grasston). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.