Jamestown, Tennessee Weather
Cicadas claim the scorching afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Jamestown weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Rain33%0.11″85°69°—
- SundayJul 5Rain33%0.17″87°70°+2°
- MondayJul 6Thunderstorm36%—80°67°-7°
- TuesdayJul 7Drizzle16%—81°65°+1°
- WednesdayJul 8Mostly Clear11%—86°63°+5°
- ThursdayJul 9Overcast22%—88°65°+2°
- FridayJul 10Thunderstorm52%0.04″77°69°-11°
AQI 48 (Good), driven by PM2.5. AQI up 18 in the last 6 hours — air quality is degrading. PM2.5 at 9.1 µg/m³, PM10 at 9.8 µg/m³ — typical background levels with no transport signature.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 35. Overcast through the UV peak window (cloud cover ~66%) — afternoon ozone should stay flat.
- Present
- AQI 35
- UV peak
- 0.1 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 4
PM × Wind × Precip
PM2.5 at 9.1 µg/m³, PM10 at 9.8 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.93
- Wind
- calm
- Recent rain
- 1h in last 6h
- Pattern
- background
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
- 10:55 PM
- Moonset
- 10:52 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Jamestown at a glance
- Today vs. normal: 6°F above the seasonal normal for this latitude
- Last frost: March 26 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 38556
16-Day Forecast — Jamestown
- Sat85°69°33%
- Sun87°70°33%
- Mon80°67°36%
- Tue81°65°16%
- Wed86°63°11%
- Thu88°65°22%
- Fri77°69°52%
- Sat78°67°54%
- Sun74°64°34%
- Mon82°59°16%
- Tue85°63°12%
- Wed85°64°29%
- Thu76°63°48%
- Fri85°63°50%
- Sat84°66°45%
- Sun89°69°63%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 5, 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 tomorrow.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWMRGLMarginal Risk
- DAY 3TSTMGeneral Thunderstorms
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
- 38556