McGrath, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for McGrath, a city in Aitkin County, Minnesota.
Today
73°F
Mostly Sunny
Mostly sunny, with a high near 73. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
7-day forecast for McGrath
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 73°F | Mostly Sunny | 5 to 10 mph NW | 0% |
| Tonight | 50°F | Mostly Clear | 0 to 5 mph NW | 0% |
| Wednesday | 77°F | Sunny | 0 to 10 mph SW | 0% |
| Wednesday Night | 56°F | Mostly Clear | 0 to 5 mph SW | 2% |
| Thursday | 82°F | Sunny | 5 to 10 mph SW | 3% |
| Thursday Night | 61°F | Mostly Clear | 5 to 10 mph SW | 7% |
| Friday | 84°F | Sunny | 5 to 10 mph SW | 11% |
| Friday Night | 58°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph W | 24% |
| Saturday | 82°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph SW | 17% |
| Saturday Night | 58°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 0 to 5 mph N | 42% |
| Sunday | 80°F | Chance Showers And Thunderstorms | 0 to 5 mph N | 28% |
| Sunday Night | 57°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 0 to 5 mph N | 16% |
| Monday | 79°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph N | 20% |
| Monday Night | 56°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 0 to 5 mph N | 18% |
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 Aug 4, 2026.