Thompson, ND Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Thompson, a city in Grand Forks County, North Dakota.
This Afternoon
71°F
Scattered Rain Showers
Scattered rain showers. Mostly cloudy. High near 71, with temperatures falling to around 67 in the afternoon. North wind around 13 mph. Chance of precipitation is 30%.
7-day forecast for Thompson
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 71°F | Scattered Rain Showers | 13 mph N | 27% |
| Tonight | 49°F | Mostly Cloudy | 8 to 14 mph NNE | 0% |
| Sunday | 68°F | Partly Sunny | 8 to 12 mph NE | 0% |
| Sunday Night | 44°F | Mostly Cloudy | 3 to 9 mph ENE | 0% |
| Monday | 68°F | Mostly Sunny | 3 to 7 mph ESE | 0% |
| Monday Night | 42°F | Mostly Clear | 7 mph SE | 0% |
| Tuesday | 68°F | Sunny | 7 to 15 mph SSE | 0% |
| Tuesday Night | 45°F | Mostly Clear | 14 mph SSE | 0% |
| Wednesday | 69°F | Mostly Sunny | 13 to 22 mph SSE | 4% |
| Wednesday Night | 51°F | Mostly Cloudy then Chance Rain Showers | 14 to 18 mph SSE | 31% |
| Thursday | 71°F | Chance Rain Showers | 14 to 17 mph SSE | 37% |
| Thursday Night | 53°F | Slight Chance Rain Showers then Mostly Cloudy | 8 to 12 mph SSE | 16% |
| Friday | 75°F | Partly Sunny | 8 to 17 mph S | 5% |
| Friday Night | 57°F | Partly Cloudy then Slight Chance Rain Showers | 16 mph SSE | 15% |
Forecast source: National Weather Service (api.weather.gov) for Thompson (47.775, -97.104). Updated through the day.
Growing snapshot for Thompson
Last spring frost
May 10
First fall frost
Oct 1
Growing season
144 days
Hardiness zone
4a
More local growing data for Thompson: nearby ZIP 58278 weather · frost dates · planting calendar · North Dakota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Grand Forks Univ (Nws), Nd (9.8 mi from Thompson). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.