Louisville, Tennessee Weather
Fireflies pulse through the magnolias. Day 77 of spring. Read this microseason across nine climate regions →
Louisville weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Overcast——81°56°—
- FridayJun 5Overcast——85°62°+4°
- SaturdayJun 6Overcast——86°62°+1°
- SundayJun 7Light Drizzle—0.01″76°65°-10°
- MondayJun 8Light Showers43%0.09″72°67°-4°
- TuesdayJun 9Heavy Drizzle44%—79°65°+7°
- WednesdayJun 10Light Drizzle32%—82°67°+3°
Ozone at AQI 95. AQI up 50 in the last 6 hours — air quality is degrading. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
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 95. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
- Present
- AQI 95
- UV peak
- 0.4 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 11
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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 3:52 AM
- Moonset
- 1:49 PM
- In sign
- ♒︎ Aquarius
Fireflies pulse through the magnolias
Louisville at a glance
- Today vs. normal: 79°F — typical for the season
- Last frost: March 22 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Peak growing season
As of June 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 General Thunderstorms category for severe thunderstorms day after tomorrow.
- TODAYNONENo severe risk
- TOMORROWNONENo severe risk
- DAY 3TSTMGeneral Thunderstorms
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
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.