Voltaire, ND Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Voltaire, a city in Mchenry County, North Dakota.
Tonight
56°F
Mostly Cloudy then Patchy Fog
Patchy fog after 4am. Mostly cloudy, with a low around 56. South wind 2 to 9 mph, with gusts as high as 18 mph.
7-day forecast for Voltaire
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 56°F | Mostly Cloudy then Patchy Fog | 2 to 9 mph S | 5% |
| Saturday | 67°F | Patchy Fog | 1 to 12 mph E | 19% |
| Saturday Night | 49°F | Mostly Cloudy | 8 to 12 mph NE | 13% |
| Sunday | 65°F | Mostly Cloudy | 9 mph E | 14% |
| Sunday Night | 46°F | Mostly Cloudy | 3 to 8 mph E | 14% |
| Monday | 69°F | Mostly Sunny | 3 to 12 mph SE | 3% |
| Monday Night | 48°F | Partly Cloudy | 10 mph SE | 2% |
| Tuesday | 71°F | Mostly Sunny | 10 to 21 mph S | 2% |
| Tuesday Night | 52°F | Partly Cloudy | 16 mph S | 7% |
| Wednesday | 74°F | Partly Sunny | 14 to 17 mph S | 8% |
| Wednesday Night | 54°F | Partly Cloudy | 12 mph S | 13% |
| Thursday | 77°F | Sunny | 10 mph S | 13% |
| Thursday Night | 54°F | Mostly Clear | 7 to 10 mph SE | 5% |
| Friday | 76°F | Mostly Sunny | 9 to 17 mph S | 6% |
Forecast source: National Weather Service (api.weather.gov) for Voltaire (48.019, -100.844). Updated through the day.
Growing snapshot for Voltaire
Last spring frost
May 22
First fall frost
Sep 22
Growing season
123 days
Hardiness zone
4a
More local growing data for Voltaire: nearby ZIP 58790 weather · frost dates · planting calendar · North Dakota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Velva, Nd (2.1 mi from Voltaire). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.