Seymour, Tennessee Weather
Cicadas claim the scorching afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Seymour weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast18%—89°71°—
- SundayJul 5Overcast25%—92°73°+3°
- MondayJul 6Heavy Rain71%2.8″88°68°-4°
- TuesdayJul 7Light Showers45%—89°65°+1°
- WednesdayJul 8Overcast12%—90°65°+1°
- ThursdayJul 9Overcast17%—91°64°+1°
- FridayJul 10Showers56%0.61″92°66°+1°
AQI 54 (Moderate), driven by PM2.5. AQI up 12 over the last 6 hours (gradual rise). PM2.5 at 9.7 µg/m³ (AQI 52) with a 0.92 fine-to-coarse ratio and 4 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 44. Overcast through the UV peak window (cloud cover ~77%) — afternoon ozone should stay flat.
- Present
- AQI 44
- UV peak
- 0.0 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 5
PM × Wind × Precip
PM2.5 at 9.7 µg/m³ (AQI 52) with a 0.92 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.92
- 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
- 11:50 PM
- Moonset
- 11:48 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Seymour at a glance
- Today vs. normal: 5°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: 37865
16-Day Forecast — Seymour
- Sat89°71°18%
- Sun92°73°25%
- Mon88°68°71%
- Tue89°65°45%
- Wed90°65°12%
- Thu91°64°17%
- Fri92°66°56%
- Sat81°66°61%
- Sun76°65°48%
- Mon85°63°29%
- Tue86°63°17%
- Wed87°66°19%
- Thu74°67°35%
- Fri88°65°32%
- Sat86°69°47%
- Sun94°67°62%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 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 — Seymour
SPC has placed Seymour 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 Seymour
- 37865