East Rochester, Pennsylvania Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
East Rochester weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Rain53%0.24″93°70°—
- SundayJul 5Overcast45%—90°70°-3°
- MondayJul 6Thunderstorm83%0.27″81°69°-9°
- TuesdayJul 7Showers32%—78°66°-3°
- WednesdayJul 8Overcast——83°65°+5°
- ThursdayJul 9Light Drizzle24%0.01″87°62°+4°
- FridayJul 10Thunderstorm66%0.66″77°69°-10°
AQI 53 (Moderate), driven by Ozone. AQI up 11 over the last 6 hours (gradual rise). Ozone at AQI 100 now. With UV 8.8 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 117 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 100 now. With UV 8.8 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 117 around 1 PM.
- Present
- AQI 100
- UV peak
- 8.8 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 117
PM × Wind × Precip
PM2.5 at 8.5 µg/m³, PM10 at 9.4 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.90
- 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
- 11:16 PM
- Moonset
- 10:24 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
East Rochester at a glance
- Today vs. normal: 23°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.
16-Day Forecast — East Rochester
- Sat93°70°53%
- Sun90°70°45%
- Mon81°69°83%
- Tue78°66°32%
- Wed83°65°6%
- Thu87°62°24%
- Fri77°69°66%
- Sat75°63°34%
- Sun76°59°23%
- Mon76°55°20%
- Tue78°53°24%
- Wed82°56°24%
- Thu85°58°22%
- Fri80°61°26%
- Sat82°67°32%
- Sun76°67°25%
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 — East Rochester
SPC has placed East Rochester 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 East Rochester
- 15074