McGrath, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for McGrath, a city in Aitkin County, Minnesota.
This Afternoon
57°F
Rain
A chance of rain between 1pm and 3pm, then rain and patchy fog. Cloudy. High near 57, with temperatures falling to around 54 in the afternoon. North wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for McGrath
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 57°F | Rain | 10 mph N | 79% |
| Tonight | 48°F | Light Rain | 10 mph N | 86% |
| Wednesday | 52°F | Rain | 10 mph N | 84% |
| Wednesday Night | 39°F | Light Rain | 10 to 15 mph N | 88% |
| Thursday | 44°F | Slight Chance Light Rain then Mostly Cloudy | 5 to 15 mph N | 15% |
| Thursday Night | 28°F | Mostly Cloudy | 0 to 5 mph NE | 0% |
| Friday | 43°F | Mostly Sunny | 0 mph | 0% |
| Friday Night | 26°F | Partly Cloudy | 0 mph | 1% |
| Saturday | 47°F | Partly Sunny | 0 to 5 mph SW | 6% |
| Saturday Night | 32°F | Slight Chance Light Rain | 0 mph | 22% |
| Sunday | 49°F | Mostly Sunny | 0 to 10 mph NW | 9% |
| Sunday Night | 31°F | Partly Cloudy | 0 to 5 mph W | 1% |
| Monday | 52°F | Mostly Sunny | 0 to 5 mph SW | 1% |
| Monday Night | 33°F | Mostly Clear | 0 to 5 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov) for McGrath (46.242, -93.275). Updated through the day.
Growing snapshot for McGrath
Last spring frost
May 10
First fall frost
Oct 3
Growing season
144 days
Hardiness zone
4a
More local growing data for McGrath: nearby ZIP 56350 weather · frost dates · planting calendar · Minnesota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Isle 12N, Mn (13 mi from McGrath). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.