Harpster, Ohio Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Harpster weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast22%—89°71°—
- SundayJul 5Overcast32%—84°72°-5°
- MondayJul 6Thunderstorm35%—80°65°-4°
- TuesdayJul 7Light Drizzle13%—79°64°-1°
- WednesdayJul 8Partly Cloudy——84°63°+5°
- ThursdayJul 9Thunderstorm44%—81°65°-3°
- FridayJul 10Thunderstorm46%—79°69°-2°
AQI 28 (Good), driven by PM2.5. AQI down 7 over the last 6 hours (gradual decline). PM2.5 at 6.1 µg/m³, PM10 at 6.8 µg/m³ — typical background levels with no transport signature.
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 32 now. With UV 3.6 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 15 around 1 PM.
- Present
- AQI 32
- UV peak
- 3.6 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 15
PM × Wind × Precip
PM2.5 at 6.1 µg/m³, PM10 at 6.8 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
- 11:28 PM
- Moonset
- 10:37 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Harpster at a glance
- Today vs. normal: 10°F above the seasonal normal for this latitude
- Last frost: April 20 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 43323
16-Day Forecast — Harpster
- Sat89°71°22%
- Sun84°72°32%
- Mon80°65°35%
- Tue79°64°13%
- Wed84°63°9%
- Thu81°65°44%
- Fri79°69°46%
- Sat83°66°28%
- Sun75°61°23%
- Mon62°57°12%
- Tue77°60°15%
- Wed83°63°26%
- Thu84°67°23%
- Fri83°69°19%
- Sat84°68°40%
- Sun86°68°35%
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 — Harpster
SPC has placed Harpster 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 Harpster
- 43323