Walnut Hill, Tennessee Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Walnut Hill weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast20%—86°69°—
- SundayJul 5Heavy Rain34%1.2″91°70°+5°
- MondayJul 6Drizzle67%—88°69°-3°
- TuesdayJul 7Light Showers48%—87°66°-1°
- WednesdayJul 8Light Drizzle15%—85°63°-2°
- ThursdayJul 9Overcast25%—89°60°+4°
- FridayJul 10Light Drizzle56%—89°62°0°
AQI 55 (Moderate), driven by Ozone. AQI up 8 over the last 6 hours (gradual rise). Ozone at AQI 51 now. With UV 0.5 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 12 around 1 PM.
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 51 now. With UV 0.5 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 12 around 1 PM.
- Present
- AQI 51
- UV peak
- 0.5 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 12
PM × Wind × Precip
PM2.5 at 7.1 µg/m³ (AQI 39) with a 0.93 fine-to-coarse ratio and 3 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
- 11:18 PM
- Moonset
- 10:37 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Walnut Hill at a glance
- Today vs. normal: 11°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.
16-Day Forecast — Walnut Hill
- Sat86°69°20%
- Sun91°69°32%
- Mon88°69°67%
- Tue87°66°48%
- Wed85°63°15%
- Thu89°60°25%
- Fri89°62°56%
- Sat80°65°68%
- Sun72°61°48%
- Mon78°55°29%
- Tue84°56°20%
- Wed88°63°40%
- Thu85°64°48%
- Fri87°66°69%
- Sat85°66°65%
- Sun86°65°72%
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 — Walnut Hill
SPC has placed Walnut Hill 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 Walnut Hill
- 37620