Union City, Tennessee Weather
Fireflies pulse through the magnolias. Day 78 of spring. Read this microseason across nine climate regions →
Union City weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Overcast——81°60°—
- FridayJun 5Overcast——86°61°+5°
- SaturdayJun 6Light Showers——86°65°0°
- SundayJun 7Showers68%0.10″85°70°-1°
- MondayJun 8Showers73%0.17″83°71°-2°
- TuesdayJun 9Light Showers49%—85°72°+2°
- WednesdayJun 10Light Drizzle28%—89°69°+4°
Ozone at AQI 36 now. AQI up 8 over the last 6 hours (gradual rise). With UV 0.0 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 6 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 36 now. With UV 0.0 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 6 by mid-afternoon.
- Present
- AQI 36
- UV peak
- 0.0 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 6
PM × Wind × Precip
PM2.5 at 4.7 µg/m³ (AQI 26) with a 0.90 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.90
- Wind
- light
- 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).
The higher the clouds, the finer the weather.
- Moonrise
- 4:48 AM
- Moonset
- 3:11 PM
- In sign
- ♒︎ Aquarius
Fireflies pulse through the magnolias
Union City at a glance
- Today vs. normal: 7°F below the seasonal normal for this latitude
- 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 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 — Union City
SPC has placed Union 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.