| NWS Forecast for: Mendham NJ Issued by: National Weather Service Philadelphia, PA Last Update: 4:11 am EDT Jul 13, 2025 | |
| Today: Partly sunny, with a high near 85. Southeast wind 5 to 10 mph. Tonight: A slight chance of showers and thunderstorms before 2am, then a slight chance of showers between 2am and 5am, then a chance of drizzle after 5am. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 70. Southeast wind 5 to 10 mph becoming light and variable after midnight. Chance of precipitation is 20%. Monday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. Some of the storms could produce heavy rainfall. High near 86. South wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms. Monday Night: Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 5am, then a chance of showers after 5am. Some of the storms could produce heavy rainfall. Low around 70. Calm wind. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms. Tuesday: A chance of showers, with thunderstorms also possible after 8am. Mostly cloudy, with a high near 87. Calm wind. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms. Tuesday Night: A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Partly cloudy, with a low around 71. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms. Wednesday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 89. Chance of precipitation is 50%. Wednesday Night: A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 73. Chance of precipitation is 30%. Thursday: Showers likely and possibly a thunderstorm, mainly after 2pm. Mostly cloudy, with a high near 89. Chance of precipitation is 70%. Thursday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 72. Chance of precipitation is 60%. Friday: A chance of showers and thunderstorms. Partly sunny, with a high near 89. Chance of precipitation is 40%. Friday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 69. Chance of precipitation is 30%. Saturday: A chance of showers and thunderstorms. Partly sunny, with a high near 86. Chance of precipitation is 30%. | |
| Mendham NJ 40.76°N 74.59°W (Elev. 600 ft) | |
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