Greenville, Ohio Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Greenville weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast28%—89°72°—
- SundayJul 5Drizzle29%0.02″87°71°-2°
- MondayJul 6Light Drizzle42%—80°66°-7°
- TuesdayJul 7Light Drizzle——79°62°-1°
- WednesdayJul 8Overcast——83°63°+4°
- ThursdayJul 9Thunderstorm41%—81°66°-2°
- FridayJul 10Thunderstorm52%0.01″77°69°-4°
AQI 33 (Good), driven by Ozone. Ozone at AQI 68 now. With UV 6.4 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 58 around 1 PM.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 9 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 68 now. With UV 6.4 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 58 around 1 PM.
- Present
- AQI 68
- UV peak
- 6.4 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 58
PM × Wind × Precip
PM2.5 at 11.7 µg/m³, PM10 at 14.3 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.82
- 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
- 11:33 PM
- Moonset
- 10:43 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Greenville at a glance
- Today vs. normal: 12°F above the seasonal normal for this latitude
- Last frost: April 17 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 45331
16-Day Forecast — Greenville
- Sat89°72°28%
- Sun87°71°29%
- Mon80°66°42%
- Tue79°62°9%
- Wed83°63°8%
- Thu81°66°41%
- Fri77°69°52%
- Sat85°66°31%
- Sun73°60°12%
- Mon70°60°10%
- Tue73°59°15%
- Wed81°61°35%
- Thu83°66°23%
- Fri80°68°20%
- Sat84°67°35%
- Sun86°70°32%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 4, 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 — Greenville
SPC has placed Greenville 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 Greenville
- 45331