South Williamson, Kentucky Weather
Cicadas claim the scorching afternoon. Day 15 of summer. Read this microseason across nine climate regions →
South Williamson weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Rain29%0.11″89°76°—
- SundayJul 5Drizzle24%0.04″93°73°+4°
- MondayJul 6Drizzle58%—91°72°-2°
- TuesdayJul 7Light Drizzle28%—84°69°-7°
- WednesdayJul 8Light Drizzle10%—90°66°+6°
- ThursdayJul 9Mostly Clear20%—93°65°+3°
- FridayJul 10Thunderstorm63%0.04″91°70°-2°
AQI 54 (Moderate), driven by PM2.5. AQI flat over the last 6 hours (within ±4 points). PM2.5 at 9.2 µg/m³, PM10 at 10.0 µg/m³ — typical background levels with no transport signature.
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 34. Overcast through the UV peak window (cloud cover ~68%) — afternoon ozone should stay flat.
- Present
- AQI 34
- UV peak
- 0.0 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 4
PM × Wind × Precip
PM2.5 at 9.2 µg/m³, PM10 at 10.0 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.92
- Wind
- calm
- Recent rain
- 1h 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
- 11:45 PM
- Moonset
- 11:41 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
South Williamson at a glance
- Today vs. normal: 8°F above the seasonal normal for this latitude
- Last frost: April 2 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 41503
16-Day Forecast — South Williamson
- Sat89°76°29%
- Sun93°73°24%
- Mon91°72°58%
- Tue84°69°28%
- Wed90°66°10%
- Thu93°65°20%
- Fri91°70°63%
- Sat79°69°56%
- Sun81°64°43%
- Mon91°59°21%
- Tue90°62°15%
- Wed84°62°15%
- Thu88°65°26%
- Fri86°66°42%
- Sat91°70°36%
- Sun93°70°48%
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 — South Williamson
SPC has placed South Williamson in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- 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 South Williamson
- 41503