Hazardous Weather Conditions
Current conditions at
Morristown Airport (KMMU)
Lat: 40.8°NLon: 74.42°WElev: 187ft.
Clear
75°F
24°C
| Humidity | 78% |
| Wind Speed | W 3 mph |
| Barometer | 30.13 in |
| Dewpoint | 68°F (20°C) |
| Visibility | 10.00 mi |
| Last update | 30 Jun 7:45 am EDT |
Extended Forecast for
Summit NJ
Extreme Heat Watch July 1, 09:00pm until July 4, 09:00pm
Extreme Heat Warning July 1, 12:00pm until July 1, 09:00pm
Today

High: 91 °F
Mostly Sunny
Tonight

Low: 70 °F
Slight Chance
T-stormsWednesday
High: 97 °F
Sunny then
Slight Chance
T-stormsWednesday Night

Low: 75 °F
Mostly Clear
Thursday

High: 101 °F
Hot
Thursday Night

Low: 79 °F
Clear
Friday
High: 100 °F
Sunny then
Chance
ShowersFriday Night
Low: 76 °F
Chance
Showers then
Partly CloudyIndependence Day
High: 98 °F
Mostly Sunny
then Chance
T-storms
Detailed Forecast
Today
Mostly sunny, with a high near 91. Light southwest wind increasing to 5 to 10 mph in the morning.
Tonight
A 20 percent chance of showers and thunderstorms after 11pm. Partly cloudy, with a low around 70. Southwest wind 8 to 10 mph, with gusts as high as 21 mph.
Wednesday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 97. Heat index values as high as 107. Southwest wind around 9 mph.
Wednesday Night
Mostly clear, with a low around 75. Southwest wind around 7 mph.
Thursday
Sunny and hot, with a high near 101. West wind 3 to 8 mph.
Thursday Night
Clear, with a low around 79.
Friday
A 30 percent chance of showers after 2pm. Sunny, then becoming partly sunny during the afternoon and hot, with a high near 100.
Friday Night
A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 76.
Independence Day
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 98.
Saturday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 73. Chance of precipitation is 30%.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
Sunday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71.
Monday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 88.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Summit NJ
40.71°N 74.37°W (Elev. 400 ft)
40.71°N 74.37°W (Elev. 400 ft)
7:08 am EDT Jun 30, 2026
7am EDT Jun 30, 2026-6pm EDT Jul 6, 2026



