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 4Foggy29%—90°70°—
- SundayJul 5Heavy Showers39%0.56″83°70°-7°
- MondayJul 6T-storm w/ Hail52%—79°67°-4°
- TuesdayJul 7Heavy Drizzle12%—73°64°-6°
- WednesdayJul 8Overcast——80°63°+7°
- ThursdayJul 9Thunderstorm41%0.15″75°65°-5°
- FridayJul 10Light Showers56%0.26″75°69°0°
AQI 50 (Good), driven by Ozone. AQI up 18 in the last 6 hours — air quality is degrading. Ozone at AQI 95 — peak already passed at 1 PM under clear 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 95 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 95
- UV peak
- 3.8 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 95
PM × Wind × Precip
PM2.5 at 10.5 µg/m³, PM10 at 11.7 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.90
- 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: 19°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
- Sat89°70°29%
- Sun83°70°39%
- Mon79°67°52%
- Tue73°64°12%
- Wed80°63°8%
- Thu75°65°41%
- Fri75°69°56%
- Sat70°61°27%
- Sun71°57°16%
- Mon70°55°20%
- Tue74°55°15%
- Wed76°57°29%
- Thu78°59°35%
- Fri81°63°37%
- Sat74°69°29%
- Sun70°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 — 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