Star Junction, Pennsylvania Weather
Solstice approaches — longest light. Day 88 of spring. Read this microseason across nine climate regions →
Star Junction weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 15Overcast——69°59°—
- TuesdayJun 16Overcast——75°55°+6°
- WednesdayJun 17Light Drizzle15%—78°55°+3°
- ThursdayJun 18Heavy Showers79%0.56″79°65°+1°
- FridayJun 19Light Drizzle52%—73°56°-6°
- SaturdayJun 20Overcast——72°48°-1°
- SundayJun 21Light Rain29%0.39″60°57°-12°
AQI 34 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±4 points). PM2.5 at 6.3 µg/m³ (AQI 35) with a 0.98 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
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 30. Overcast through the UV peak window (cloud cover ~62%) — afternoon ozone should stay flat.
- Present
- AQI 30
- UV peak
- 3.3 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 7
PM × Wind × Precip
PM2.5 at 6.3 µg/m³ (AQI 35) with a 0.98 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.98
- 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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 5:50 AM
- Moonset
- 9:04 PM
- In sign
- ♊︎ Gemini
Solstice approaches — longest light
Star Junction at a glance
- Today vs. normal: 15°F below the seasonal normal for this latitude
- Last frost: April 16 (climatological average for this latitude)
- Microseason: Jun 11–15
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
15-Day Forecast — Star Junction
- Mon69°59°7%
- Tue75°55°1%
- Wed78°55°15%
- Thu79°65°79%
- Fri73°56°52%
- Sat72°48°8%
- Sun60°57°29%
- Mon75°54°42%
- Tue75°50°39%
- Wed83°57°21%
- Thu80°62°28%
- Fri82°61°36%
- Sat81°56°38%
- Sun77°59°48%
- Mon91°69°43%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of June 15, 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 — Star Junction
SPC has placed Star Junction in the General Thunderstorms category for severe thunderstorms day after tomorrow.
- TODAYNONENo severe risk
- TOMORROWNONENo severe risk
- DAY 3TSTMGeneral Thunderstorms
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
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 Star Junction
- 15482