Delaware River - Marcus Hook Weather Forecast
- 70
- 89
Partly Sunny
- 63
- 83
Mostly Sunny
- 65
- 83
Mostly Sunny
- 68
- 84
Partly Sunny
- 74
- 89
Mostly Sunny
- 77
- 95
Slight Chance Thunderstorms
- 76
- 94
Chance Thunderstorms
Today 20 Jul Delaware
Mostly cloudy this Morning, then becoming partly sunny. Patchy fog this morning. A chance of Showers. A slight chance of Thunderstorms this Morning, then a chance of Thunderstorms this afternoon. Hot with Highs in the upper 80s. South Winds around 5 Mph, becoming west this afternoon. Chance of rain 40 percent.
Tonight 20 Jul Delaware
Partly cloudy. A chance of Showers and Thunderstorms this evening. Lows in the upper 60s. Northwest Winds 5 to 10 Mph. Chance of rain 40 percent.
Delaware River - Marcus Hook Temperature Statistics
July Temperature
Philadelphia, Philadelphia International Airport (10.6 miles)
Lowest 5 July, 2025
66.7 °FAverage July
81.1 °FHighest 8 July, 2025
96.7 °F
Climate (2020–Present)
Philadelphia, Philadelphia International Airport (10.6 miles)
Average Low 2020–2025
50.3 °FAverage 2020–2025
58.4 °FAverage High 2020–2025
66.9 °F