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I-78 weather conditions near Summit, New Jersey

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       Current Weather Conditions

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7 day weather forecast

  • Current condition: Overcast 68°F 2025-07-12T05:35:00-04:00
  • Today 2025-07-12, Mostly Cloudy then Slight Chance T-storms. A 20 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 87. Calm wind becoming southeast 5 to 7 mph in the afternoon.
  • Tonight 2025-07-12, Mostly Cloudy then Patchy Fog. Patchy fog after 4am. Otherwise, increasing clouds, with a low around 71. Southeast wind around 5 mph becoming calm in the evening.
  • Sunday 2025-07-13, Mostly Cloudy then Slight Chance T-storms. A 20 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 85. East wind 3 to 8 mph.
  • Sunday Night 2025-07-13, Chance T-storms and Patchy Fog. A 30 percent chance of showers and thunderstorms, mainly after 2am. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 72. Southeast wind around 6 mph becoming calm in the evening.
  • Monday 2025-07-14, Chance T-storms then Showers Likely. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 84. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
  • Monday Night 2025-07-14, Showers Likely then Patchy Fog. Showers likely before 8pm. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 71. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
  • Tuesday 2025-07-15, Patchy Fog then Mostly Sunny. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 91.
  • Tuesday Night 2025-07-15, Mostly Clear. Mostly clear, with a low around 72.
  • Wednesday 2025-07-16, Mostly Sunny then Chance T-storms. A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92.
  • Wednesday Night 2025-07-16, Chance T-storms then Mostly Cloudy. A 30 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 74.
  • Thursday 2025-07-17, Chance Showers then Chance T-storms. A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 91.
  • Thursday Night 2025-07-17, Chance T-storms then Chance Showers. A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 75.
  • Friday 2025-07-18, Chance Showers then Showers Likely. Showers likely and possibly a thunderstorm. Partly sunny, with a high near 91. Chance of precipitation is 60%.





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