Grenora, ND Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Grenora, a city in Williams County, North Dakota.
This Afternoon
48°F
Sunny
Sunny. High near 48, with temperatures falling to around 42 in the afternoon. West wind around 5 mph.
7-day forecast for Grenora
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 48°F | Sunny | 5 mph W | 0% |
| Tonight | 27°F | Mostly Clear | 3 mph SW | 0% |
| Wednesday | 51°F | Mostly Sunny | 2 to 7 mph W | 0% |
| Wednesday Night | 25°F | Partly Cloudy | 2 to 6 mph NE | 0% |
| Thursday | 47°F | Mostly Sunny | 3 to 12 mph SE | 0% |
| Thursday Night | 30°F | Partly Cloudy | 9 mph S | 0% |
| Friday | 51°F | Mostly Sunny | 8 to 15 mph SW | 0% |
| Friday Night | 34°F | Partly Cloudy | 9 to 15 mph SW | 3% |
| Saturday | 54°F | Mostly Sunny | 14 to 22 mph W | 7% |
| Saturday Night | 30°F | Mostly Clear | 7 to 10 mph SW | 0% |
| Sunday | 58°F | Mostly Sunny | 8 to 16 mph S | 0% |
| Sunday Night | 38°F | Partly Cloudy | 12 to 17 mph SW | 1% |
| Monday | 53°F | Mostly Sunny | 9 to 17 mph W | 0% |
| Monday Night | 32°F | Partly Cloudy | 7 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov) for Grenora (48.620, -103.937). Updated through the day.
Growing snapshot for Grenora
Last spring frost
May 18
First fall frost
Sep 21
Growing season
125 days
Hardiness zone
3b
More local growing data for Grenora: nearby ZIP 58845 weather · frost dates · planting calendar · North Dakota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Westby, Mt (17.2 mi from Grenora). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.