Harrisburg, Ohio Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Harrisburg weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Heavy Rain41%1.8″88°69°—
- SundayJul 5Showers34%0.14″83°69°-5°
- MondayJul 6T-storm w/ Hail75%0.06″76°66°-7°
- TuesdayJul 7Light Drizzle20%—81°63°+5°
- WednesdayJul 8Overcast——84°61°+3°
- ThursdayJul 9Light Drizzle26%—82°65°-2°
- FridayJul 10Drizzle61%—79°67°-3°
AQI 43 (Good), driven by Ozone. AQI up 11 over the last 6 hours (gradual rise). Ozone at AQI 96 now. With UV 8.9 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 114 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 10 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 96 now. With UV 8.9 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 114 around 1 PM.
- Present
- AQI 96
- UV peak
- 8.9 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 114
PM × Wind × Precip
PM2.5 at 9.7 µg/m³, PM10 at 10.9 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.89
- Wind
- light
- 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
- 11:20 PM
- Moonset
- 10:28 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Harrisburg at a glance
- Today vs. normal: 17°F above the seasonal normal for this latitude
- Last frost: April 21 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 43126
16-Day Forecast — Harrisburg
- Sat88°69°41%
- Sun83°69°34%
- Mon76°66°75%
- Tue81°63°20%
- Wed84°61°5%
- Thu82°65°26%
- Fri79°67°61%
- Sat82°64°27%
- Sun73°61°18%
- Mon68°55°18%
- Tue77°59°22%
- Wed83°63°26%
- Thu86°67°26%
- Fri83°68°23%
- Sat83°67°30%
- Sun83°61°32%
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 — Harrisburg
SPC has placed Harrisburg 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 Harrisburg
- 44641