Harrison, Tennessee Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Harrison weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast13%—94°70°—
- SundayJul 5Overcast25%—95°74°+1°
- MondayJul 6Light Showers62%—91°72°-4°
- TuesdayJul 7Overcast39%—92°70°+1°
- WednesdayJul 8Overcast38%—93°68°+1°
- ThursdayJul 9Overcast38%—96°67°+3°
- FridayJul 10Light Drizzle54%—93°70°-3°
AQI 53 (Moderate), driven by Ozone. Ozone at AQI 80 — peak already passed at 1 PM under partly cloudy skies. Levels should ease through evening.
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 80 — peak already passed at 1 PM under partly cloudy skies. Levels should ease through evening.
- Present
- AQI 80
- UV peak
- 6.7 at earlier today
- Sky at peak
- partly cloudy
- Projected peak
- AQI 80
PM × Wind × Precip
PM2.5 at 13.3 µg/m³ (AQI 59) with a 0.90 fine-to-coarse ratio and 2 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.90
- 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
- 11:28 PM
- Moonset
- 10:51 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Harrison at a glance
- Today vs. normal: 16°F above the seasonal normal for this latitude
- Last frost: March 18 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 37341
16-Day Forecast — Harrison
- Sat96°70°13%
- Sun95°74°25%
- Mon91°72°62%
- Tue92°70°39%
- Wed93°68°38%
- Thu96°67°38%
- Fri93°70°54%
- Sat88°70°54%
- Sun86°68°33%
- Mon84°61°15%
- Tue86°62°15%
- Wed88°65°37%
- Thu88°68°35%
- Fri92°69°48%
- Sat91°70°61%
- Sun82°70°49%
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 — Harrison
SPC has placed Harrison 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 Harrison
- 37416
- 37341