Jefferson Hills, Pennsylvania Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Jefferson Hills weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Heavy Rain76%0.33″94°69°—
- SundayJul 5Light Drizzle46%0.02″90°69°-4°
- MondayJul 6T-storm w/ Hail86%0.30″81°69°-9°
- TuesdayJul 7T-storm w/ Hail55%—76°65°-5°
- WednesdayJul 8Light Drizzle16%0.02″82°64°+6°
- ThursdayJul 9Light Drizzle36%—85°62°+3°
- FridayJul 10Heavy Drizzle71%0.11″75°67°-10°
AQI 100 (Moderate), driven by PM2.5. AQI up 46 in the last 6 hours — air quality is degrading. PM scrubbed by 2 hours of recent rain — PM2.5 down to 8.9 µg/m³, PM10 to 9.2 µg/m³.
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 42. Overcast through the UV peak window (cloud cover ~77%) — afternoon ozone should stay flat.
- Present
- AQI 42
- UV peak
- 0.2 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 5
PM × Wind × Precip
PM scrubbed by 2 hours of recent rain — PM2.5 down to 8.9 µg/m³, PM10 to 9.2 µg/m³.
- PM2.5/PM10
- 0.97
- Wind
- light
- Recent rain
- 2h in last 6h
- Pattern
- washed out
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
- 11:14 PM
- Moonset
- 10:23 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Jefferson Hills at a glance
- Today vs. normal: 9°F above the seasonal normal for this latitude
- 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°76%
- Sun90°69°46%
- Mon81°69°86%
- Tue76°65°55%
- Wed82°64°16%
- Thu85°62°36%
- Fri75°67°71%
- Sat81°65°56%
- Sun77°60°27%
- Mon77°56°26%
- Tue78°56°20%
- Wed82°57°32%
- Thu84°59°29%
- Fri77°61°39%
- Sat83°67°25%
- Sun79°67°42%
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 — Jefferson Hills
SPC has placed Jefferson Hills 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 Jefferson Hills
- 15332
- 15025