Jefferson Hills, Pennsylvania Weather
Cicadas claim the afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Jefferson Hills weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Rain74%0.41″94°69°—
- SundayJul 5Heavy Drizzle44%0.07″87°69°-7°
- MondayJul 6Light Drizzle78%0.02″87°70°0°
- TuesdayJul 7Light Showers61%—76°66°-11°
- WednesdayJul 8Drizzle21%0.01″85°68°+9°
- ThursdayJul 9Drizzle45%0.02″85°63°0°
- FridayJul 10Light Drizzle75%—78°67°-7°
AQI 47 (Good), driven by PM2.5. AQI down 58 over the last 6 hours — air quality is improving sharply. PM2.5 at 8.6 µg/m³, PM10 at 8.8 µg/m³ — typical background levels with no transport signature.
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 ~75%) — afternoon ozone should stay flat.
- Present
- AQI 30
- UV peak
- 0.0 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 4
PM × Wind × Precip
PM2.5 at 8.6 µg/m³, PM10 at 8.8 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.98
- 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
- 11:37 PM
- Moonset
- 11:30 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Jefferson Hills at a glance
- Today vs. normal: 71°F — typical for the season
- Last frost: April 18 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Jefferson Hills
- Sat94°69°74%
- Sun87°69°44%
- Mon87°70°78%
- Tue76°66°61%
- Wed85°68°21%
- Thu85°63°45%
- Fri78°67°75%
- Sat80°64°47%
- Sun80°57°29%
- Mon81°55°15%
- Tue82°59°16%
- Wed83°62°32%
- Thu80°56°23%
- Fri89°60°39%
- Sat88°66°43%
- Sun75°66°35%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 5, 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 — Jefferson Hills
SPC has placed Jefferson Hills in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWMRGLMarginal Risk
- DAY 3TSTMGeneral Thunderstorms
Isolated severe storms possible. Limited threat for hail or damaging wind.
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 Jefferson Hills
- 15332
- 15025