Garrison, ND Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Garrison, a city in Mclean County, North Dakota.
Tonight
55°F
Mostly Cloudy then Patchy Fog
Patchy fog after 1am. Mostly cloudy, with a low around 55. Southeast wind 1 to 13 mph.
7-day forecast for Garrison
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 55°F | Mostly Cloudy then Patchy Fog | 1 to 13 mph SE | 2% |
| Saturday | 67°F | Patchy Fog | 1 to 13 mph NE | 19% |
| Saturday Night | 48°F | Slight Chance Rain Showers | 13 mph NE | 19% |
| Sunday | 64°F | Slight Chance Rain Showers | 12 mph E | 22% |
| Sunday Night | 46°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 9 mph E | 22% |
| Monday | 69°F | Mostly Sunny | 5 to 12 mph SE | 6% |
| Monday Night | 46°F | Partly Cloudy | 10 mph SE | 3% |
| Tuesday | 70°F | Mostly Sunny | 10 to 20 mph SE | 3% |
| Tuesday Night | 50°F | Mostly Cloudy | 13 to 16 mph SE | 6% |
| Wednesday | 75°F | Partly Sunny | 12 to 16 mph S | 9% |
| Wednesday Night | 52°F | Partly Cloudy | 7 to 12 mph S | 13% |
| Thursday | 78°F | Sunny | 6 to 10 mph SE | 10% |
| Thursday Night | 53°F | Mostly Clear | 9 mph SE | 5% |
| Friday | 77°F | Mostly Sunny | 8 to 17 mph SE | 5% |
Forecast source: National Weather Service (api.weather.gov) for Garrison (47.653, -101.422). Updated through the day.
Growing snapshot for Garrison
Last spring frost
May 12
First fall frost
Oct 3
Growing season
143 days
Hardiness zone
4a
More local growing data for Garrison: nearby ZIP 58565 weather · frost dates · planting calendar · North Dakota frost dates
Nearby towns & communities
Benedict
Butte
Coleharbor
Max
Mercer
Pick City
Riverdale
Ruso
Ryder
Turtle Lake
Underwood
Washburn
White Shield
Climate data from the nearest NOAA station, Riverdale, Nd (0.4 mi from Garrison). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.