Simpsonville, Kentucky Weather
Cicadas claim the scorching afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Simpsonville weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Light Showers13%0.08″89°70°—
- SundayJul 5Drizzle32%0.02″88°74°-1°
- MondayJul 6Overcast35%—85°69°-3°
- TuesdayJul 7Light Drizzle20%—83°67°-2°
- WednesdayJul 8Partly Cloudy21%—85°65°+2°
- ThursdayJul 9Thunderstorm34%—87°67°+2°
- FridayJul 10T-storm w/ Hail60%0.09″85°70°-2°
AQI 68 (Moderate), driven by PM2.5. AQI up 19 in the last 6 hours — air quality is degrading. PM scrubbed by 2 hours of recent rain — PM2.5 down to 9.9 µg/m³, PM10 to 10.4 µg/m³.
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 42. Overcast through the UV peak window (cloud cover ~86%) — afternoon ozone should stay flat.
- Present
- AQI 42
- UV peak
- 0.0 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 5
PM × Wind × Precip
PM scrubbed by 2 hours of recent rain — PM2.5 down to 9.9 µg/m³, PM10 to 10.4 µg/m³.
- PM2.5/PM10
- 0.95
- Wind
- breezy
- Recent rain
- 2h in last 6h
- Pattern
- washed out
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
- 11:57 PM
- Moonset
- 11:54 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Simpsonville at a glance
- Today vs. normal: 3°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.
ZIP code: 40067
16-Day Forecast — Simpsonville
- Sat89°70°13%
- Sun88°74°32%
- Mon85°69°35%
- Tue83°67°20%
- Wed85°65°21%
- Thu87°67°34%
- Fri85°70°60%
- Sat84°68°42%
- Sun78°63°16%
- Mon82°57°7%
- Tue84°61°5%
- Wed85°67°19%
- Thu84°63°29%
- Fri81°65°39%
- Sat91°70°39%
- Sun92°74°40%
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 — Simpsonville
SPC has placed Simpsonville 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 Simpsonville
- 40067