Grant, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Grant, a city in Washington County, Minnesota.
Tonight
54°F
Rain Showers
Rain showers and patchy fog. Cloudy, with a low around 54. East southeast wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Grant
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 54°F | Rain Showers | 10 to 15 mph ESE | 77% |
| Saturday | 63°F | Chance Rain Showers then Cloudy | 10 mph ENE | 30% |
| Saturday Night | 52°F | Mostly Cloudy | 5 to 10 mph NNE | 11% |
| Sunday | 68°F | Partly Sunny | 10 to 15 mph NE | 1% |
| Sunday Night | 47°F | Mostly Cloudy | 5 to 10 mph ENE | 1% |
| Monday | 64°F | Mostly Cloudy | 5 to 10 mph ENE | 6% |
| Monday Night | 43°F | Mostly Cloudy | 5 mph E | 4% |
| Tuesday | 64°F | Mostly Sunny | 5 mph E | 3% |
| Tuesday Night | 43°F | Partly Cloudy | 0 to 5 mph ESE | 0% |
| Wednesday | 66°F | Sunny | 0 to 5 mph SE | 0% |
| Wednesday Night | 48°F | Partly Cloudy | 0 to 5 mph SE | 8% |
| Thursday | 69°F | Mostly Sunny | 0 to 5 mph SSE | 13% |
| Thursday Night | 50°F | Partly Cloudy | 0 mph | 10% |
| Friday | 71°F | Mostly Sunny | 0 to 5 mph SE | 6% |
Forecast source: National Weather Service (api.weather.gov) for Grant (45.082, -92.911). Updated through the day.
Growing snapshot for Grant
Last spring frost
Apr 30
First fall frost
Oct 11
Growing season
163 days
Hardiness zone
5a
More local growing data for Grant: nearby ZIP 55115 weather · frost dates · planting calendar · Minnesota frost dates
Nearby towns & communities
Afton
Bayport
Birchwood Village
Cottage Grove
Dellwood
Hugo
Lake Elmo
Lake St. Croix Beach
Lakeland
Lakeland Shores
Mahtomedi
Marine on St. Croix
Newport
Oak Park Heights
Oakdale
Pine Springs
Scandia
St. Marys Point
St. Paul Park
Stillwater
Willernie
Woodbury
Climate data from the nearest NOAA station, Stillwater 2Sw, Mn (5 mi from Grant). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.