Louisville, Tennessee Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Louisville weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast17%—93°70°—
- SundayJul 5Heavy Rain22%2.0″96°73°+3°
- MondayJul 6Light Showers68%0.03″90°71°-6°
- TuesdayJul 7Light Drizzle42%—89°67°-1°
- WednesdayJul 8Overcast11%—89°66°0°
- ThursdayJul 9Overcast20%—92°64°+3°
- FridayJul 10Thunderstorm56%—88°70°-4°
AQI 53 (Moderate), driven by Ozone. AQI up 25 in the last 6 hours — air quality is degrading. 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
- 3.4 at earlier today
- Sky at peak
- partly cloudy
- Projected peak
- AQI 80
PM × Wind × Precip
PM2.5 at 9.9 µg/m³ (AQI 52) with a 0.88 fine-to-coarse ratio and 1 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.88
- 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
- 11:25 PM
- Moonset
- 10:46 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Louisville at a glance
- Today vs. normal: 17°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: 37777
16-Day Forecast — Louisville
- Sat94°70°17%
- Sun96°72°22%
- Mon90°71°68%
- Tue89°67°42%
- Wed89°66°11%
- Thu92°64°20%
- Fri88°70°56%
- Sat80°68°62%
- Sun78°64°44%
- Mon81°58°26%
- Tue81°59°15%
- Wed89°62°32%
- Thu86°65°33%
- Fri88°68°55%
- Sat85°67°52%
- Sun82°67°60%
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 — Louisville
SPC has placed Louisville 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 Louisville
- 37777