Thompson, ND Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Thompson, a city in Grand Forks County, North Dakota.
Today
74°F
Sunny
Sunny. High near 74, with temperatures falling to around 72 in the afternoon. West northwest wind around 16 mph.
7-day forecast for Thompson
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 74°F | Sunny | 16 mph WNW | 0% |
| Tonight | 49°F | Mostly Clear | 3 to 13 mph SW | 0% |
| Wednesday | 82°F | Sunny | 6 to 17 mph SW | 0% |
| Wednesday Night | 57°F | Slight Chance Rain Showers | 8 to 14 mph SW | 20% |
| Thursday | 85°F | Slight Chance Rain Showers then Sunny | 8 to 15 mph WSW | 18% |
| Thursday Night | 58°F | Mostly Clear | 7 to 13 mph W | 3% |
| Friday | 83°F | Sunny | 7 to 15 mph WNW | 3% |
| Friday Night | 55°F | Mostly Clear | 5 to 15 mph NNE | 8% |
| Saturday | 82°F | Mostly Sunny | 5 to 14 mph N | 8% |
| Saturday Night | 56°F | Mostly Clear | 6 to 14 mph NNE | 14% |
| Sunday | 80°F | Mostly Sunny | 7 to 13 mph N | 14% |
| Sunday Night | 57°F | Partly Cloudy then Chance Rain Showers | 6 to 13 mph NNE | 26% |
| Monday | 80°F | Chance Rain Showers | 6 to 14 mph N | 26% |
| Monday Night | 57°F | Slight Chance Rain Showers | 6 to 14 mph N | 17% |
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 Aug 4, 2026.