Mount Vernon, Kentucky Weather
Cicadas claim the scorching afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Mount Vernon weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast12%—89°68°—
- MondayJul 6Light Drizzle32%0.04″84°71°-5°
- TuesdayJul 7T-storm w/ Hail52%—84°68°0°
- WednesdayJul 8T-storm w/ Hail23%—83°68°-1°
- ThursdayJul 9T-storm w/ Hail18%—83°67°0°
- FridayJul 10T-storm w/ Hail68%0.19″79°67°-4°
- SaturdayJul 11Light Drizzle54%0.02″73°67°-6°
AQI 46 (Good), driven by Ozone. AQI up 16 in the last 6 hours — air quality is degrading. Ozone at AQI 63 — 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 63 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 63
- UV peak
- 4.8 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 63
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
- 11:53 PM
- Moonset
- 11:50 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Mount Vernon at a glance
- Today vs. normal: 15°F above the seasonal normal for this latitude
- Last frost: March 31 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 40456
16-Day Forecast — Mount Vernon
- Sun89°68°12%
- Mon84°70°32%
- Tue84°68°52%
- Wed83°68°23%
- Thu83°67°18%
- Fri79°67°68%
- Sat73°67°54%
- Sun84°64°24%
- Mon84°65°13%
- Tue73°54°10%
- Wed78°55°12%
- Thu85°59°26%
- Fri87°61°36%
- Sat89°63°46%
- Sun86°64°37%
- Mon85°63°38%
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 — Mount Vernon
SPC has placed Mount Vernon 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 Mount Vernon
- 40456
- 40473