Grand Rapids, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Grand Rapids, a city in Itasca County, Minnesota.
Overnight
46°F
Light Rain
Rain before 2am, then rain and patchy fog. Cloudy, with a low around 46. North wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Grand Rapids
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 46°F | Light Rain | 15 mph N | 86% |
| Wednesday | 49°F | Light Rain | 15 mph N | 94% |
| Wednesday Night | 34°F | Light Rain Likely | 15 mph N | 73% |
| Thursday | 40°F | Mostly Cloudy | 10 to 15 mph N | 1% |
| Thursday Night | 21°F | Partly Cloudy | 0 to 5 mph N | 1% |
| Friday | 40°F | Sunny | 0 mph | 0% |
| Friday Night | 21°F | Partly Cloudy | 0 to 5 mph S | 0% |
| Saturday | 47°F | Mostly Sunny | 5 to 10 mph SW | 5% |
| Saturday Night | 30°F | Partly Cloudy | 5 mph W | 9% |
| Sunday | 49°F | Mostly Sunny | 5 to 10 mph W | 4% |
| Sunday Night | 30°F | Mostly Cloudy | 0 to 5 mph SW | 0% |
| Monday | 54°F | Mostly Sunny | 5 to 10 mph SW | 1% |
| Monday Night | 31°F | Partly Cloudy | 5 mph W | 1% |
| Tuesday | 49°F | Mostly Sunny | 5 mph W | 3% |
Forecast source: National Weather Service (api.weather.gov) for Grand Rapids (47.239, -93.533). Updated through the day.
Growing snapshot for Grand Rapids
Last spring frost
May 17
First fall frost
Sep 24
Growing season
130 days
Hardiness zone
4a
More local growing data for Grand Rapids: nearby ZIP 55744 weather · frost dates · planting calendar · Minnesota frost dates
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Keewatin
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Nashwauk
Squaw Lake
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Climate data from the nearest NOAA station, Grand Rpds Forest Lab, Mn (1 mi from Grand Rapids). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.