Williamsport, Ohio Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Williamsport weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast14%—93°73°—
- SundayJul 5Overcast26%—90°73°-3°
- MondayJul 6Thunderstorm61%—82°69°-8°
- TuesdayJul 7Light Drizzle15%—80°64°-2°
- WednesdayJul 8Light Drizzle——87°64°+7°
- ThursdayJul 9Light Drizzle33%—85°67°-2°
- FridayJul 10Drizzle59%—79°70°-6°
AQI 39 (Good), driven by Ozone. Ozone at AQI 100 now. With UV 7.7 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 73 around 1 PM.
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 100 now. With UV 7.7 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 73 around 1 PM.
- Present
- AQI 100
- UV peak
- 7.7 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 73
PM × Wind × Precip
PM2.5 at 8.8 µg/m³, PM10 at 10.3 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.85
- Wind
- light
- 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
- 10:38 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Williamsport at a glance
- Today vs. normal: 19°F above the seasonal normal for this latitude
- Last frost: April 13 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 43164
16-Day Forecast — Williamsport
- Sat93°73°14%
- Sun90°73°26%
- Mon82°69°61%
- Tue80°64°15%
- Wed87°64°7%
- Thu85°67°33%
- Fri79°70°59%
- Sat87°67°32%
- Sun75°62°15%
- Mon67°55°15%
- Tue77°61°11%
- Wed84°63°29%
- Thu86°67°23%
- Fri88°69°18%
- Sat86°68°40%
- 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 — Williamsport
SPC has placed Williamsport 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 Williamsport
- 43164