Marcus Hook, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Marcus Hook, a borough in Delaware County, Pennsylvania.
Today
85°F
Mostly Sunny
Mostly sunny, with a high near 85. Northeast wind around 5 mph.
7-day forecast for Marcus Hook
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Mostly Sunny | 5 mph NE | 0% |
| Tonight | 69°F | Mostly Cloudy | 0 to 5 mph E | 8% |
| Wednesday | 85°F | Showers And Thunderstorms Likely | 0 to 5 mph SE | 76% |
| Wednesday Night | 74°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 5 mph S | 57% |
| Thursday | 89°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 20% |
| Thursday Night | 75°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 mph SW | 25% |
| Friday | 90°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 mph SW | 35% |
| Friday Night | 74°F | Chance Showers And Thunderstorms | 0 to 5 mph SW | 43% |
| Saturday | 88°F | Partly Sunny then Chance Showers And Thunderstorms | 5 mph SW | 36% |
| Saturday Night | 73°F | Chance Showers And Thunderstorms | 0 to 5 mph SW | 36% |
| Sunday | 89°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph W | 17% |
| Sunday Night | 74°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SW | 17% |
| Monday | 90°F | Sunny | 5 to 10 mph W | 10% |
| Monday Night | 73°F | Slight Chance Showers And Thunderstorms | 5 mph W | 15% |
Forecast source: National Weather Service (api.weather.gov) for Marcus Hook (39.813, -75.416). Updated through the day.
Growing snapshot for Marcus Hook
Last spring frost
Mar 30
First fall frost
Nov 16
Growing season
230 days
Hardiness zone
7b
More local growing data for Marcus Hook: nearby ZIP 19061 weather · frost dates · planting calendar · Pennsylvania frost dates
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Climate data from the nearest NOAA station, Marcus Hook, Pa (0.3 mi from Marcus Hook). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.