McGregor, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for McGregor, a city in Aitkin County, Minnesota.
Overnight
55°F
Mostly Cloudy
Mostly cloudy, with a low around 55. Northwest wind around 10 mph. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for McGregor
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 55°F | Mostly Cloudy | 10 mph NW | 9% |
| Tuesday | 71°F | Mostly Sunny | 5 to 10 mph NW | 3% |
| Tuesday Night | 49°F | Mostly Clear | 0 to 10 mph W | 0% |
| Wednesday | 76°F | Sunny | 0 to 10 mph SW | 0% |
| Wednesday Night | 57°F | Partly Cloudy | 5 to 10 mph SW | 4% |
| Thursday | 82°F | Sunny | 10 to 15 mph SW | 4% |
| Thursday Night | 61°F | Mostly Clear | 5 to 10 mph SW | 8% |
| Friday | 83°F | Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 22% |
| Friday Night | 56°F | Chance Showers And Thunderstorms | 0 to 10 mph W | 25% |
| Saturday | 81°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph SW | 18% |
| Saturday Night | 57°F | Chance Showers And Thunderstorms | 0 to 5 mph N | 33% |
| Sunday | 76°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph W | 22% |
| Sunday Night | 57°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 0 to 5 mph N | 17% |
| Monday | 76°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph N | 20% |
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 Aug 4, 2026.