Greenfield, Ohio Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Greenfield weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Mostly Clear12%—93°72°—
- SundayJul 5Light Drizzle44%0.02″89°72°-4°
- MondayJul 6Thunderstorm44%—82°68°-7°
- TuesdayJul 7Overcast21%—81°63°-1°
- WednesdayJul 8Light Drizzle16%—86°65°+5°
- ThursdayJul 9Light Drizzle45%—86°66°0°
- FridayJul 10Drizzle55%0.01″79°70°-7°
AQI 41 (Good), driven by Ozone. AQI down 8 over the last 6 hours (gradual decline). Ozone at AQI 76 now. With UV 5.7 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 57 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 76 now. With UV 5.7 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 57 around 1 PM.
- Present
- AQI 76
- UV peak
- 5.7 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 57
PM × Wind × Precip
PM2.5 at 9.7 µg/m³ (AQI 52) with a 0.89 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.89
- Wind
- calm
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
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
- 11:27 PM
- Moonset
- 10:39 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Greenfield at a glance
- Today vs. normal: 13°F above the seasonal normal for this latitude
- Last frost: April 12 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 45123
16-Day Forecast — Greenfield
- Sat93°72°12%
- Sun89°72°44%
- Mon82°68°44%
- Tue81°63°21%
- Wed86°65°16%
- Thu86°66°45%
- Fri79°70°55%
- Sat85°67°29%
- Sun75°61°27%
- Mon67°55°14%
- Tue77°61°12%
- Wed82°63°24%
- Thu85°67°27%
- Fri89°69°19%
- Sat83°68°48%
- Sun87°70°29%
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 — Greenfield
SPC has placed Greenfield 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 Greenfield
- 45123