Cosby, Tennessee Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Cosby weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast18%—89°72°—
- SundayJul 5Light Rain34%0.06″90°72°+1°
- MondayJul 6Thunderstorm86%—86°69°-4°
- TuesdayJul 7Heavy Drizzle46%—86°67°0°
- WednesdayJul 8Light Drizzle16%—84°64°-2°
- ThursdayJul 9Overcast27%—88°67°+4°
- FridayJul 10Thunderstorm57%—86°70°-2°
AQI 46 (Good), driven by PM2.5. AQI up 5 over the last 6 hours (gradual rise). PM2.5 at 8.8 µg/m³ (AQI 49) with a 0.86 fine-to-coarse ratio and 1 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 46 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 46
- UV peak
- 3.4 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 46
PM × Wind × Precip
PM2.5 at 8.8 µg/m³ (AQI 49) with a 0.86 fine-to-coarse ratio and 1 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.86
- 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
- 11:21 PM
- Moonset
- 10:42 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Cosby at a glance
- Today vs. normal: 12°F above the seasonal normal for this latitude
- Last frost: March 22 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 37722
16-Day Forecast — Cosby
- Sat89°72°18%
- Sun90°72°34%
- Mon86°69°86%
- Tue86°67°46%
- Wed84°64°16%
- Thu88°67°27%
- Fri86°70°57%
- Sat81°67°61%
- Sun71°62°47%
- Mon78°58°28%
- Tue80°60°18%
- Wed86°66°55%
- Thu84°66°55%
- Fri90°68°71%
- Sat80°68°75%
- Sun85°67°68%
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 — Cosby
SPC has placed Cosby 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 Cosby
- 37722