
Dangerous Heat and Humidity Through Saturday
Dangerously hot and humid conditions are expected to continue through Saturday. Additionally, there will be a threat of thunderstorms through Sunday. View this briefing for details. Read More >
Hazardous Weather Conditions
Current conditions at
Somerville, Somerset Airport (KSMQ)
Lat: 40.62°NLon: 74.67°WElev: 105ft.
Fair
82°F
28°C
| Humidity | 74% |
| Wind Speed | Calm |
| Barometer | 29.92 in (1013.2 mb) |
| Dewpoint | 73°F (23°C) |
| Visibility | 7.00 mi |
| Heat Index | 87°F (31°C) |
| Last update | 4 Jul 8:53 am EDT |
Extended Forecast for
3 Miles NE Dayton NJ
Extreme Heat Warning July 4, 09:43am until July 4, 08:00pm
NOW until 8:00pm Sat
Extreme Heat Warning
Independence Day
High: 98 °F
Sunny then
Heavy RainTonight
Low: 73 °F
Heavy Rain
then Chance
ShowersSunday
High: 85 °F
Slight Chance
Showers then
Showers
LikelySunday Night

Low: 65 °F
Showers
Monday

High: 77 °F
Showers
Monday Night

Low: 64 °F
Showers
Tuesday

High: 80 °F
Showers
LikelyTuesday Night

Low: 64 °F
Chance
Showers
Detailed Forecast
Independence Day
A chance of showers and thunderstorms, mainly after 3pm. Some of the storms could produce heavy rainfall. Mostly sunny and hot, with a high near 98. Heat index values as high as 103. West wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 11pm, then a chance of showers and thunderstorms after 11pm. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 73. Northwest wind around 5 mph becoming calm. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
A chance of showers before 2pm, then a chance of showers and thunderstorms between 2pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Partly sunny, with a high near 85. Calm wind becoming east 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.
Sunday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7pm. Low around 65. East wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Monday
Showers and possibly a thunderstorm. High near 77. East wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Monday Night
Showers and possibly a thunderstorm before 2am, then showers likely. Low around 64. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
Showers likely before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 80. Chance of precipitation is 60%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 64. Chance of precipitation is 40%.
Wednesday
Partly sunny, with a high near 85.
Wednesday Night
Partly cloudy, with a low around 66.
Thursday
Mostly sunny, with a high near 89.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 90. Chance of precipitation is 50%.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
3 Miles NE Dayton NJ
40.41°N 74.46°W (Elev. 98 ft)
40.41°N 74.46°W (Elev. 98 ft)
4:08 am EDT Jul 4, 2026
9am EDT Jul 4, 2026-6pm EDT Jul 10, 2026



