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 4Heavy Showers23%0.65″89°72°—
- SundayJul 5Heavy Rain32%0.32″87°70°-2°
- MondayJul 6Thunderstorm42%0.01″75°65°-12°
- TuesdayJul 7Light Drizzle——79°59°+4°
- WednesdayJul 8Overcast——81°63°+2°
- ThursdayJul 9Thunderstorm41%—81°66°0°
- FridayJul 10Thunderstorm52%0.22″80°70°-1°
AQI 47 (Good), driven by Ozone. AQI up 14 over the last 6 hours (gradual rise). Ozone at AQI 91 — 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 91 — peak already passed at 1 PM under partly cloudy skies. Levels should ease through evening.
- Present
- AQI 91
- UV peak
- 4.2 at earlier today
- Sky at peak
- partly cloudy
- Projected peak
- AQI 91
PM × Wind × Precip
PM2.5 at 12.4 µg/m³, PM10 at 14.4 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.86
- Wind
- breezy
- 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
- 11:33 PM
- Moonset
- 10:43 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Greenville at a glance
- Today vs. normal: 16°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
- Sat90°72°23%
- Sun87°70°32%
- Mon75°65°42%
- Tue79°59°9%
- Wed81°63°8%
- Thu81°66°41%
- Fri80°70°52%
- Sat75°63°31%
- Sun72°57°12%
- Mon73°54°10%
- Tue74°56°15%
- Wed77°57°20%
- Thu80°60°23%
- Fri82°64°35%
- Sat78°68°35%
- Sun75°67°61%
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 Slight Risk category for severe thunderstorms today.
- TODAYSLGTSlight Risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
Scattered severe storms possible. A few tornadoes, hail, and damaging wind gusts possible.
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