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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.

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

WhenTempForecastWindPrecip
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

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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 19, 2026.