Harman US

Jamestown, ND Weather & Growing Conditions

This Afternoon
69°F
Mostly Cloudy
Mostly cloudy. High near 69, with temperatures falling to around 66 in the afternoon. Northeast wind around 10 mph.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 69°F Mostly Cloudy 10 mph NE 3%
Tonight 51°F Slight Chance Rain Showers then Mostly Cloudy 12 mph NE 16%
Sunday 64°F Cloudy 12 mph NE 3%
Sunday Night 48°F Mostly Cloudy 3 to 8 mph NE 2%
Monday 64°F Mostly Sunny 3 to 8 mph E 1%
Monday Night 42°F Mostly Clear 7 mph SE 1%
Tuesday 66°F Sunny 5 to 17 mph SE 1%
Tuesday Night 47°F Mostly Clear 15 mph SE 3%
Wednesday 67°F Mostly Sunny 15 to 21 mph SE 9%
Wednesday Night 52°F Showers And Thunderstorms Likely 13 to 17 mph SE 60%
Thursday 71°F Showers And Thunderstorms Likely 9 to 13 mph SE 60%
Thursday Night 53°F Mostly Cloudy 8 mph S 6%
Friday 73°F Partly Sunny 6 to 15 mph S 6%
Friday Night 56°F Partly Cloudy then Slight Chance Rain Showers 13 to 17 mph SE 19%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Jamestown, ND

Last spring frost
May 8
First fall frost
Sep 29
Growing season
143 days
Hardiness zone
4a

Explore more for Jamestown, ND: full frost dates · planting calendar · North Dakota frost dates

Climate data from the nearest NOAA station, Jamestown State Hosp, Nd (0.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.