
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
Trenton-Mercer Airport (KTTN)
Lat: 40.28°NLon: 74.82°WElev: 210ft.
Fair
93°F
34°C
| Humidity | 38% |
| Wind Speed | NW 7 mph |
| Barometer | 29.92 in (1012.3 mb) |
| Dewpoint | 64°F (18°C) |
| Visibility | 10.00 mi |
| Heat Index | 95°F (35°C) |
| Last update | 4 Jul 12:53 pm EDT |
Extended Forecast for
Levittown PA
Extreme Heat Warning July 4, 01:43pm until July 4, 08:00pm
NOW until 8:00pm Sat

Extreme Heat Warning
Independence Day

High: 99 °F
Heavy Rain
Tonight
Low: 74 °F
Heavy Rain
then Chance
ShowersSunday
High: 88 °F
Mostly Sunny
then Showers
LikelySunday Night
Low: 68 °F
T-storms then
ShowersMonday

High: 80 °F
Showers
Monday Night

Low: 66 °F
Showers
LikelyTuesday

High: 82 °F
Showers
LikelyTuesday Night

Low: 66 °F
Chance
Showers
Detailed Forecast
Independence Day
A chance of showers and thunderstorms, mainly after 5pm. Some of the storms could produce heavy rainfall. Mostly sunny and hot, with a high near 99. Heat index values as high as 105. 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
Showers and thunderstorms likely, mainly before 1am. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 74. West wind around 5 mph becoming calm. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers before 3pm, then a chance of showers and thunderstorms between 3pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Partly sunny, with a high near 88. 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
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 8pm. Low around 68. 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 80. 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 likely and possibly a thunderstorm. Mostly cloudy, with a low around 66. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
Showers likely and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 82. Chance of precipitation is 60%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 66. Chance of precipitation is 40%.
Wednesday
Partly sunny, with a high near 85.
Wednesday Night
Partly cloudy, with a low around 68.
Thursday
A chance of showers. Mostly sunny, with a high near 90. Chance of precipitation is 30%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 91. Chance of precipitation is 40%.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Levittown PA
40.16°N 74.82°W (Elev. 72 ft)
40.16°N 74.82°W (Elev. 72 ft)
4:08 am EDT Jul 4, 2026
1pm EDT Jul 4, 2026-6pm EDT Jul 10, 2026



