Jamestown, North Dakota Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Jamestown weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Foggy——79°62°—
- SundayJul 5Clear——87°61°+8°
- MondayJul 6Light Showers50%—93°67°+6°
- TuesdayJul 7Showers65%0.33″78°62°-15°
- WednesdayJul 8Showers66%0.32″75°59°-3°
- ThursdayJul 9Overcast14%—81°58°+6°
- FridayJul 10Mostly Clear25%—80°61°-1°
AQI 34 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 7.5 µg/m³ (AQI 42) with a 0.94 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
PM × Wind × Precip
PM2.5 at 7.5 µg/m³ (AQI 42) with a 0.94 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.94
- Wind
- calm
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:41 PM
- Moonset
- 10:33 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Jamestown at a glance
- Today vs. normal: 3°F below the seasonal normal for this latitude
- Last frost: May 27 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP codes: 58401, 58402, 58405
16-Day Forecast — Jamestown
- Sat79°62°6%
- Sun87°61°2%
- Mon93°67°50%
- Tue78°62°65%
- Wed75°59°66%
- Thu81°58°14%
- Fri80°61°25%
- Sat73°56°25%
- Sun79°54°9%
- Mon92°63°9%
- Tue92°71°8%
- Wed80°57°20%
- Thu89°58°24%
- Fri81°58°6%
- Sat79°63°18%
- Sun97°73°24%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 4, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.
SPC Convective Outlook
Storm Prediction Center — Jamestown
SPC has placed Jamestown in the Marginal Risk category for severe thunderstorms day after tomorrow.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWNONENo severe risk
- DAY 3MRGLMarginal Risk
Isolated severe storms possible. Limited threat for hail or damaging wind.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.
ZIP codes in Jamestown
- 58401
- 58402
- 58405