Greenwich, Ohio Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Greenwich weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast29%—90°70°—
- SundayJul 5Heavy Showers32%0.57″83°70°-7°
- MondayJul 6Light Drizzle39%—77°66°-6°
- TuesdayJul 7Light Drizzle18%—76°65°-1°
- WednesdayJul 8Light Drizzle10%—84°63°+8°
- ThursdayJul 9Thunderstorm43%—80°64°-4°
- FridayJul 10Thunderstorm44%—78°69°-2°
AQI 32 (Good), driven by Ozone. AQI down 10 over the last 6 hours (gradual decline). Ozone at AQI 55 now. With UV 5.4 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 39 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 8 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 55 now. With UV 5.4 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 39 around 1 PM.
- Present
- AQI 55
- UV peak
- 5.4 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 39
PM × Wind × Precip
PM2.5 at 7.7 µg/m³, PM10 at 8.4 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.92
- Wind
- breezy
- 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
- 11:26 PM
- Moonset
- 10:33 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Greenwich at a glance
- Today vs. normal: 9°F above the seasonal normal for this latitude
- Last frost: April 22 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 44837
16-Day Forecast — Greenwich
- Sat90°70°29%
- Sun83°70°32%
- Mon77°66°39%
- Tue76°65°18%
- Wed84°63°10%
- Thu80°64°43%
- Fri78°69°44%
- Sat82°66°33%
- Sun75°60°22%
- Mon62°57°14%
- Tue77°59°16%
- Wed82°64°26%
- Thu84°67°26%
- Fri84°69°20%
- Sat83°67°32%
- Sun84°65°36%
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 — Greenwich
SPC has placed Greenwich 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 Greenwich
- 44837