Mountain City, Tennessee Weather
Fireflies pulse through the magnolias. Day 77 of spring. Read this microseason across nine climate regions →
Mountain City weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Overcast——80°51°—
- FridayJun 5Overcast——85°60°+5°
- SaturdayJun 6Overcast——81°62°-4°
- SundayJun 7Light Showers22%—80°60°-1°
- MondayJun 8Light Showers52%0.04″71°64°-9°
- TuesdayJun 9Overcast28%—66°59°-5°
- WednesdayJun 10Light Drizzle29%—81°56°+15°
Ozone at AQI 46 now. AQI up 20 in the last 6 hours — air quality is degrading. With UV 0.4 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 11 by mid-afternoon.
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 46 now. With UV 0.4 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 11 by mid-afternoon.
- Present
- AQI 46
- UV peak
- 0.4 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 11
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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 3:45 AM
- Moonset
- 1:38 PM
- In sign
- ♒︎ Aquarius
Fireflies pulse through the magnolias
Mountain City at a glance
- Today vs. normal: 77°F — typical for the season
- Last frost: March 26 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Peak growing season
As of June 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 General Thunderstorms category for severe thunderstorms day after tomorrow.
- TODAYNONENo severe risk
- TOMORROWNONENo severe risk
- DAY 3TSTMGeneral Thunderstorms
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
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.