Jeffersontown, Kentucky Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Jeffersontown weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Partly Cloudy——90°70°—
- SundayJul 5Rain22%0.16″88°74°-2°
- MondayJul 6Light Drizzle20%—81°70°-7°
- TuesdayJul 7Overcast——81°66°0°
- WednesdayJul 8Clear——86°64°+5°
- ThursdayJul 9Overcast38%—91°69°+5°
- FridayJul 10Drizzle51%0.06″91°74°0°
AQI 66 (Moderate), driven by Ozone. AQI up 14 over the last 6 hours (gradual rise). Ozone at AQI 80 — peak already passed at 1 PM under clear 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 clear skies. Levels should ease through evening.
- Present
- AQI 80
- UV peak
- 1.3 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 80
PM × Wind × Precip
PM2.5 at 10.2 µg/m³, PM10 at 11.4 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.89
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- background
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
- 11:34 PM
- Moonset
- 10:50 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Jeffersontown at a glance
- Today vs. normal: 17°F above the seasonal normal for this latitude
- Last frost: April 5 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Jeffersontown
- Sat90°70°6%
- Sun88°74°22%
- Mon81°70°20%
- Tue81°66°9%
- Wed86°64°7%
- Thu91°69°38%
- Fri91°74°51%
- Sat83°70°46%
- Sun78°63°22%
- Mon78°58°17%
- Tue82°60°9%
- Wed88°61°16%
- Thu89°67°29%
- Fri90°69°31%
- Sat80°70°39%
- Sun81°67°39%
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 — Jeffersontown
SPC has placed Jeffersontown in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWTSTMGeneral Thunderstorms
- 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 Jeffersontown
- 40299
- 40220
- 40223
- 40224