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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

WhenTempForecastWindPrecip
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

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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.