Jamestown, ND Weather & Growing Conditions
This Afternoon
69°F
Mostly Cloudy
Mostly cloudy. High near 69, with temperatures falling to around 65 in the afternoon. Northeast wind around 12 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 69°F | Mostly Cloudy | 12 mph NE | 3% |
| Tonight | 51°F | Slight Chance Rain Showers then Mostly Cloudy | 12 mph NE | 18% |
| Sunday | 64°F | Cloudy | 13 mph NE | 4% |
| Sunday Night | 47°F | Mostly Cloudy | 3 to 9 mph NE | 3% |
| Monday | 64°F | Mostly Sunny | 3 to 9 mph E | 1% |
| Monday Night | 42°F | Mostly Clear | 7 mph SE | 1% |
| Tuesday | 65°F | Sunny | 6 to 17 mph SE | 1% |
| Tuesday Night | 47°F | Mostly Clear | 15 mph SE | 4% |
| Wednesday | 67°F | Mostly Sunny | 16 to 22 mph SE | 9% |
| Wednesday Night | 52°F | Showers And Thunderstorms Likely | 13 to 18 mph SE | 60% |
| Thursday | 70°F | Showers And Thunderstorms Likely | 9 to 13 mph SE | 60% |
| Thursday Night | 53°F | Mostly Cloudy | 8 mph S | 6% |
| Friday | 72°F | Partly Sunny | 6 to 16 mph S | 6% |
| Friday Night | 56°F | Partly Cloudy then Slight Chance Rain Showers | 14 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
4b
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 (3.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.