Thompson, ND Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Thompson, a city in Grand Forks County, North Dakota.
Overnight
52°F
Patchy Fog
Patchy fog. Mostly cloudy. Low around 52, with temperatures rising to around 56 overnight. East northeast wind around 3 mph.
7-day forecast for Thompson
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 52°F | Patchy Fog | 3 mph ENE | 1% |
| Saturday | 71°F | Patchy Fog then Slight Chance Rain Showers | 3 to 15 mph NNE | 16% |
| Saturday Night | 47°F | Mostly Cloudy | 9 to 16 mph NNE | 7% |
| Sunday | 67°F | Mostly Cloudy | 8 to 12 mph NE | 0% |
| Sunday Night | 42°F | Mostly Cloudy | 3 to 9 mph E | 0% |
| Monday | 69°F | Sunny | 3 to 8 mph SE | 0% |
| Monday Night | 41°F | Mostly Clear | 5 to 8 mph SE | 1% |
| Tuesday | 69°F | Sunny | 8 to 17 mph SSE | 1% |
| Tuesday Night | 46°F | Mostly Clear | 15 mph SSE | 0% |
| Wednesday | 70°F | Mostly Sunny | 14 to 21 mph SSE | 5% |
| Wednesday Night | 50°F | Partly Cloudy | 10 to 16 mph SSE | 14% |
| Thursday | 73°F | Partly Sunny | 10 to 16 mph SSE | 14% |
| Thursday Night | 53°F | Partly Cloudy | 12 mph SSE | 11% |
| Friday | 75°F | Mostly Sunny | 10 to 20 mph SSE | 9% |
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 19, 2026.