Dayton, Tennessee Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Dayton weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast11%—90°72°—
- SundayJul 5Showers31%0.17″94°74°+4°
- MondayJul 6Light Showers69%—84°70°-10°
- TuesdayJul 7Overcast23%—90°68°+6°
- WednesdayJul 8Overcast11%—93°65°+3°
- ThursdayJul 9Partly Cloudy20%—97°65°+4°
- FridayJul 10Drizzle55%—93°70°-4°
AQI 49 (Good), driven by Ozone. AQI up 20 in the last 6 hours — air quality is degrading. Ozone at AQI 65 — 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 65 — peak already passed at 1 PM under partly cloudy skies. Levels should ease through evening.
- Present
- AQI 65
- UV peak
- 3.4 at earlier today
- Sky at peak
- partly cloudy
- Projected peak
- AQI 65
PM × Wind × Precip
PM2.5 at 13.1 µg/m³ (AQI 58) with a 0.89 fine-to-coarse ratio and 1 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.89
- 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
- 10:50 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Dayton at a glance
- Today vs. normal: 14°F above the seasonal normal for this latitude
- Last frost: March 20 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 37321
16-Day Forecast — Dayton
- Sat91°72°11%
- Sun94°74°31%
- Mon84°70°69%
- Tue90°68°23%
- Wed93°65°11%
- Thu97°65°20%
- Fri93°70°55%
- Sat85°70°54%
- Sun86°65°33%
- Mon84°58°14%
- Tue85°59°17%
- Wed89°63°39%
- Thu87°67°42%
- Fri91°68°58%
- Sat90°69°51%
- Sun83°69°50%
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 — Dayton
SPC has placed Dayton 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 Dayton
- 37321