


Current conditions at
Morristown Airport (KMMU)
Lat: 40.8°NLon: 74.42°WElev: 187ft.
Partly Cloudy
88°F
31°C
Humidity | 62% |
Wind Speed | SW 9 mph |
Barometer | 29.93 in |
Dewpoint | 73°F (23°C) |
Visibility | 10.00 mi |
Heat Index | 96°F (36°C) |
Last update | 13 Aug 10:45 am EDT |
Extended Forecast for
Summit NJ
Today
High: 91 °F
T-storms
LikelyTonight
Low: 71 °F
T-storms
Likely then
Chance
Showers and
Patchy FogThursday
High: 89 °F
Showers
Likely and
Patchy FogThursday Night
Low: 69 °F
Showers
Likely then
Mostly ClearFriday
High: 87 °F
Sunny
Friday Night
Low: 68 °F
Partly Cloudy
Saturday
High: 87 °F
Mostly Sunny
Saturday Night
Low: 68 °F
Mostly Clear
Sunday
High: 92 °F
Mostly Sunny
Detailed Forecast
Today
Showers and thunderstorms likely, mainly after 5pm. Partly sunny, with a high near 91. Heat index values as high as 95. Southwest wind around 7 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms likely before 2am, then a chance of showers. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 71. Light southwest wind. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
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. Patchy fog before 8am. Otherwise, partly sunny, with a high near 89. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers likely and possibly a thunderstorm before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 69. Light north wind. Chance of precipitation is 60%.
Friday
Sunny, with a high near 87. North wind around 6 mph becoming east in the afternoon.
Friday Night
Partly cloudy, with a low around 68.
Saturday
Mostly sunny, with a high near 87.
Saturday Night
Mostly clear, with a low around 68.
Sunday
Mostly sunny, with a high near 92.
Sunday Night
A chance of showers between 8pm and 2am. Partly cloudy, with a low around 68. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 87.
Monday Night
Partly cloudy, with a low around 64.
Tuesday
Mostly sunny, with a high near 79.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Summit NJ
40.71°N 74.39°W (Elev. 230 ft)
40.71°N 74.39°W (Elev. 230 ft)
6:08 am EDT Aug 13, 2025
11am EDT Aug 13, 2025-6pm EDT Aug 19, 2025