South Mount Vernon, Ohio Weather
Fireflies pulse through the magnolias. Day 76 of spring. Read this microseason across nine climate regions →
South Mount Vernon weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 3Clear——79°47°—
- ThursdayJun 4Overcast——83°56°+4°
- FridayJun 5Overcast——79°58°-4°
- SaturdayJun 6Drizzle80%—77°63°-2°
- SundayJun 7Heavy Drizzle80%—76°61°-1°
- MondayJun 8Overcast——83°58°+7°
- TuesdayJun 9Overcast13%—81°63°-2°
Ozone at AQI 43. AQI up 20 in the last 6 hours — air quality is degrading. Overcast through the UV peak window (cloud cover ~63%) — afternoon ozone should stay flat.
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 43. Overcast through the UV peak window (cloud cover ~63%) — afternoon ozone should stay flat.
- Present
- AQI 43
- UV peak
- 0.4 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 5
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).










































The higher the clouds, the finer the weather.
- Moonrise
- 3:22 AM
- Moonset
- 12:25 PM
- In sign
- ♑︎ Capricorn
Fireflies pulse through the magnolias
South Mount Vernon at a glance
- Today vs. normal: 76°F — typical for the season
- Last frost: April 18 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Peak growing season
As of June 3, 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.