Marcus Hook, Pennsylvania Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Marcus Hook weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Heavy Drizzle26%0.04″103°80°—
- SundayJul 5Heavy Rain87%1.0″98°73°-5°
- MondayJul 6Thunderstorm87%0.14″81°67°-17°
- TuesdayJul 7Light Drizzle73%0.01″69°62°-12°
- WednesdayJul 8Partly Cloudy17%—86°59°+17°
- ThursdayJul 9Mostly Clear28%—91°65°+5°
- FridayJul 10Light Drizzle33%0.01″94°70°+3°
AQI 57 (Moderate), driven by PM2.5. AQI up 5 over the last 6 hours (gradual rise). PM2.5 at 14.4 µg/m³ (AQI 61) with a 0.91 fine-to-coarse ratio and 4 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 during the projected peak around 7 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 46 now. With UV 4.7 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 29 around 1 PM.
- Present
- AQI 46
- UV peak
- 4.7 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 29
PM × Wind × Precip
PM2.5 at 14.4 µg/m³ (AQI 61) with a 0.91 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.91
- Wind
- calm
- 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
- 10:05 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Marcus Hook at a glance
- Today vs. normal: 15°F above the seasonal normal for this latitude
- Last frost: April 15 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 19061
16-Day Forecast — Marcus Hook
- Sat103°80°26%
- Sun98°73°87%
- Mon81°67°87%
- Tue69°62°73%
- Wed86°59°17%
- Thu91°65°28%
- Fri94°70°33%
- Sat85°72°34%
- Sun74°68°33%
- Mon73°66°15%
- Tue84°65°16%
- Wed91°68°26%
- Thu95°73°29%
- Fri96°75°32%
- Sat84°72°26%
- Sun89°70°24%
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 — Marcus Hook
SPC has placed Marcus Hook in the Enhanced Risk category for severe thunderstorms today.
- TODAYENHEnhanced Risk
- TOMORROWSLGTSlight Risk
- DAY 3TSTMGeneral Thunderstorms
Numerous severe storms likely. Tornadoes, large hail, and damaging wind gusts possible across the area. Track NWS warnings if storms develop.
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 Marcus Hook
- 19061