Chesnut Hill, Pennsylvania Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Chesnut Hill weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast35%—98°71°—
- SundayJul 5Heavy Rain93%3.6″92°72°-6°
- MondayJul 6Thunderstorm93%0.41″73°62°-19°
- TuesdayJul 7Drizzle69%0.06″70°56°-3°
- WednesdayJul 8Partly Cloudy13%—83°54°+13°
- ThursdayJul 9Light Drizzle34%—87°60°+4°
- FridayJul 10Light Drizzle44%—86°67°-1°
AQI 48 (Good), driven by PM2.5. AQI up 9 over the last 6 hours (gradual rise). PM2.5 at 10.2 µg/m³ (AQI 53) with a 0.94 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 42 now. With UV 4.7 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 26 around 1 PM.
- Present
- AQI 42
- UV peak
- 4.7 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 26
PM × Wind × Precip
PM2.5 at 10.2 µg/m³ (AQI 53) with a 0.94 fine-to-coarse ratio and 6 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
- 10:55 PM
- Moonset
- 10:03 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Chesnut Hill at a glance
- Today vs. normal: 7°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 — Chesnut Hill
- Sat98°71°35%
- Sun92°72°93%
- Mon73°62°93%
- Tue70°56°69%
- Wed83°54°13%
- Thu87°60°34%
- Fri86°67°44%
- Sat83°69°27%
- Sun71°65°32%
- Mon69°64°16%
- Tue80°61°19%
- Wed88°63°24%
- Thu91°68°27%
- Fri92°71°32%
- Sat80°70°40%
- Sun86°66°37%
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 — Chesnut Hill
SPC has placed Chesnut Hill 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 Chesnut Hill
- 18040