Twin Rocks, Pennsylvania Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Twin Rocks weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Heavy Rain52%0.44″88°66°—
- SundayJul 5Overcast63%—81°68°-7°
- MondayJul 6Thunderstorm87%—78°65°-3°
- TuesdayJul 7Light Drizzle61%0.01″77°62°-1°
- WednesdayJul 8Overcast12%—83°57°+6°
- ThursdayJul 9Overcast24%—86°62°+3°
- FridayJul 10Thunderstorm63%—78°65°-8°
AQI 56 (Moderate), driven by Ozone. Ozone at AQI 78 now. With UV 7.7 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 80 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 78 now. With UV 7.7 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 80 around 1 PM.
- Present
- AQI 78
- UV peak
- 7.7 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 80
PM × Wind × Precip
PM2.5 at 7.9 µg/m³ (AQI 44) with a 0.94 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.94
- Wind
- light
- 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
- 11:10 PM
- Moonset
- 10:18 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Twin Rocks at a glance
- Today vs. normal: 11°F above the seasonal normal for this latitude
- Last frost: April 19 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 15960
16-Day Forecast — Twin Rocks
- Sat88°66°52%
- Sun81°68°63%
- Mon78°65°87%
- Tue77°62°61%
- Wed83°57°12%
- Thu86°62°24%
- Fri78°65°63%
- Sat82°66°40%
- Sun79°64°29%
- Mon70°60°29%
- Tue75°59°22%
- Wed81°64°33%
- Thu90°66°29%
- Fri89°67°26%
- Sat80°68°26%
- Sun84°64°26%
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 — Twin Rocks
SPC has placed Twin Rocks in the Slight Risk category for severe thunderstorms today.
- TODAYSLGTSlight Risk
- TOMORROWMRGLMarginal Risk
- 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 Twin Rocks
- 15943
- 15931
- 15960