7-Day Forecast 40.96°N 74.61°W (Text-Only)
NWS Forecast for: Lake Hopatcong NJ
Issued by: National Weather Service Philadelphia, PA
Last Update: 4:12 pm EDT Jul 14, 2025




This Afternoon: Showers and possibly a thunderstorm. High near 84. Calm wind. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight: Showers and thunderstorms likely, mainly before 10pm, then isolated thunderstorms after 5am. Mostly cloudy, with a low around 69. Calm wind. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Tuesday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 86. Calm wind. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tuesday Night: A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers after 2am. Increasing clouds, with a low around 70. Calm wind. Chance of precipitation is 20%.

Wednesday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 87. Calm wind becoming southwest around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Wednesday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 5am, then a chance of showers after 5am. Mostly cloudy, with a low around 72. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Thursday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 87. Chance of precipitation is 60%.

Thursday Night: Showers likely before 8pm. Partly cloudy, with a low around 72. Chance of precipitation is 60%.

Friday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 87. Chance of precipitation is 50%.

Friday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 65. Chance of precipitation is 30%.

Saturday: Mostly sunny, with a high near 84.

Saturday Night: A chance of showers. Partly cloudy, with a low around 66. Chance of precipitation is 30%.

Sunday: A chance of showers and thunderstorms. Partly sunny, with a high near 81. Chance of precipitation is 50%.

Sunday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.

Monday: A chance of showers. Mostly sunny, with a high near 82.



Lake Hopatcong NJ
 40.96°N 74.61°W (Elev. 984 ft)

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