Roy Lake, MN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Roy Lake, a community in Mahnomen County, Minnesota.
Today
70°F
Sunny
Sunny, with a high near 70. West northwest wind around 10 mph.
7-day forecast for Roy Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 70°F | Sunny | 10 mph WNW | 0% |
| Tonight | 50°F | Mostly Clear | 2 to 9 mph WSW | 0% |
| Wednesday | 76°F | Sunny | 5 to 9 mph WSW | 0% |
| Wednesday Night | 60°F | Partly Cloudy | 10 mph SW | 11% |
| Thursday | 81°F | Sunny | 12 mph SW | 11% |
| Thursday Night | 61°F | Mostly Clear | 6 to 9 mph SSW | 4% |
| Friday | 81°F | Sunny | 7 to 10 mph W | 9% |
| Friday Night | 56°F | Mostly Clear | 3 to 10 mph NNE | 9% |
| Saturday | 77°F | Mostly Sunny | 3 to 8 mph SSW | 11% |
| Saturday Night | 57°F | Slight Chance Showers And Thunderstorms | 3 to 8 mph NE | 21% |
| Sunday | 76°F | Slight Chance Rain Showers then Mostly Sunny | 7 mph N | 19% |
| Sunday Night | 57°F | Partly Cloudy then Slight Chance Rain Showers | 5 to 8 mph NE | 21% |
| Monday | 76°F | Slight Chance Rain Showers | 7 mph NE | 21% |
| Monday Night | 57°F | Slight Chance Rain Showers | 5 to 8 mph NE | 18% |
Forecast source: National Weather Service (api.weather.gov) for Roy Lake (47.317, -95.539). Updated through the day.
Growing snapshot for Roy Lake
Last spring frost
May 7
First fall frost
Sep 28
Growing season
143 days
Hardiness zone
3b
More local growing data for Roy Lake: nearby ZIP 56566 weather · frost dates · planting calendar · Minnesota frost dates
Nearby towns & communities
Beaulieu
Bejou
Ebro
Elbow Lake
Lengby
Mahnomen
Midway
Naytahwaush
Pine Bend
Riverland
The Ranch
Twin Lakes
West Roy Lake
Climate data from the nearest NOAA station, Mahnomen, Mn (17.8 mi from Roy Lake). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.