McGregor, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for McGregor, a city in Aitkin County, Minnesota.
Tonight
49°F
Mostly Cloudy
Mostly cloudy, with a low around 49. North wind 0 to 5 mph.
7-day forecast for McGregor
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 49°F | Mostly Cloudy | 0 to 5 mph N | 11% |
| Sunday | 63°F | Mostly Cloudy | 5 to 10 mph NE | 1% |
| Sunday Night | 39°F | Mostly Cloudy | 5 to 10 mph E | 0% |
| Monday | 61°F | Partly Sunny | 5 to 10 mph E | 0% |
| Monday Night | 36°F | Partly Cloudy then Patchy Frost | 0 to 5 mph E | 0% |
| Tuesday | 63°F | Patchy Frost then Sunny | 0 to 10 mph E | 0% |
| Tuesday Night | 37°F | Mostly Clear | 0 to 5 mph E | 0% |
| Wednesday | 65°F | Sunny | 0 to 10 mph SE | 0% |
| Wednesday Night | 41°F | Mostly Clear | 0 to 5 mph SE | 5% |
| Thursday | 65°F | Slight Chance Rain Showers | 5 to 10 mph SE | 20% |
| Thursday Night | 47°F | Slight Chance Rain Showers then Mostly Cloudy | 0 to 5 mph SE | 20% |
| Friday | 70°F | Partly Sunny | 0 to 5 mph SE | 3% |
| Friday Night | 49°F | Partly Cloudy | 0 to 5 mph SE | 6% |
| Saturday | 69°F | Slight Chance Rain Showers | 5 to 10 mph S | 18% |
Forecast source: National Weather Service (api.weather.gov) for McGregor (46.610, -93.300). Updated through the day.
Growing snapshot for McGregor
Last spring frost
May 7
First fall frost
Oct 3
Growing season
148 days
Hardiness zone
4a
More local growing data for McGregor: nearby ZIP 55760 weather · frost dates · planting calendar · Minnesota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Sandy Lake Dam Libby, Mn (11 mi from McGregor). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.