Mountain City, Tennessee Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Mountain City weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast32%—86°67°—
- SundayJul 5Overcast23%—87°68°+1°
- MondayJul 6Heavy Drizzle74%—86°66°-1°
- TuesdayJul 7Light Showers47%—83°64°-3°
- WednesdayJul 8Light Drizzle15%0.01″83°61°0°
- ThursdayJul 9Overcast24%—85°62°+2°
- FridayJul 10Overcast47%—87°64°+2°
AQI 47 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 8.1 µg/m³ (AQI 45) with a 0.93 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
Ozone × UV × Sky
Ozone at AQI 42 now. With UV 0.5 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 10 around 1 PM.
- Present
- AQI 42
- UV peak
- 0.5 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 10
PM × Wind × Precip
PM2.5 at 8.1 µg/m³ (AQI 45) with a 0.93 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.93
- 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
- 11:16 PM
- Moonset
- 10:35 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Mountain City at a glance
- Today vs. normal: 7°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: 37683
16-Day Forecast — Mountain City
- Sat86°67°32%
- Sun87°68°23%
- Mon86°66°74%
- Tue83°64°47%
- Wed83°61°15%
- Thu85°62°24%
- Fri87°64°47%
- Sat81°64°68%
- Sun68°60°51%
- Mon77°55°26%
- Tue81°58°20%
- Wed84°62°49%
- Thu82°65°58%
- Fri84°65°74%
- Sat83°66°78%
- Sun84°64°75%
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 — Mountain City
SPC has placed Mountain City in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- 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 Mountain City
- 37683