South Mount Vernon, Ohio Weather
Cicadas claim the scorching afternoon. Day 15 of summer. Read this microseason across nine climate regions →
South Mount Vernon weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Heavy Drizzle40%0.05″85°72°—
- MondayJul 6Overcast29%—87°69°+2°
- TuesdayJul 7Overcast34%—75°67°-12°
- WednesdayJul 8Light Drizzle11%—82°66°+7°
- ThursdayJul 9Thunderstorm49%—85°66°+3°
- FridayJul 10Showers65%0.07″74°69°-11°
- SaturdayJul 11Light Drizzle41%—79°65°+5°
AQI 45 (Good), driven by Ozone. AQI up 17 in the last 6 hours — air quality is degrading. Ozone at AQI 73 — peak already passed at 1 PM under partly cloudy 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 73 — peak already passed at 1 PM under partly cloudy skies. Levels should ease through evening.
- Present
- AQI 73
- UV peak
- 2.0 at earlier today
- Sky at peak
- partly cloudy
- Projected peak
- AQI 73
PM × Wind × Precip
PM2.5 at 8.5 µg/m³, PM10 at 9.3 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.91
- Wind
- light
- 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
- 11:48 PM
- Moonset
- 11:41 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
South Mount Vernon at a glance
- Today vs. normal: 14°F above the seasonal normal for this latitude
- Last frost: April 18 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — South Mount Vernon
- Sun86°72°40%
- Mon87°68°29%
- Tue75°67°34%
- Wed82°66°11%
- Thu85°66°49%
- Fri74°69°65%
- Sat79°65°41%
- Sun76°69°22%
- Mon76°60°13%
- Tue66°56°13%
- Wed76°58°12%
- Thu79°60°29%
- Fri82°61°26%
- Sat82°62°24%
- Sun81°63°31%
- Mon80°63°35%
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 Mount Vernon
SPC has placed South 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 South Mount Vernon
- 43050