Hazardous Weather Conditions
Current conditions at
Trenton-Mercer Airport (KTTN)
Lat: 40.28°NLon: 74.82°WElev: 210ft.
A Few Clouds
90°F
32°C
| Humidity | 41% |
| Wind Speed | W 9 G 18 mph |
| Barometer | 29.98 in (1014.4 mb) |
| Dewpoint | 63°F (17°C) |
| Visibility | 10.00 mi |
| Heat Index | 91°F (33°C) |
| Last update | 19 May 6:53 pm EDT |
Extended Forecast for
Newtown PA
Heat Advisory May 19, 07:21pm until May 20, 08:00pm
NOW until 8:00pm Wed

Heat Advisory
Tonight

Low: 73 °F
Partly Cloudy
Wednesday
High: 94 °F
Sunny then
Showers
LikelyWednesday Night

Low: 55 °F
Showers
LikelyThursday

High: 67 °F
Chance
ShowersThursday Night

Low: 51 °F
Mostly Cloudy
Friday

High: 65 °F
Chance
ShowersFriday Night

Low: 48 °F
Showers
Saturday

High: 60 °F
Showers
Detailed Forecast
Tonight
Partly cloudy, with a low around 73. West wind 5 to 10 mph becoming light southwest after midnight.
Wednesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4pm. Increasing clouds, with a high near 94. West wind 5 to 15 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers likely and possibly a thunderstorm before 7pm, then a chance of showers and thunderstorms between 7pm and 10pm, then a chance of showers after 10pm. Mostly cloudy, with a low around 55. North wind 5 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers before 2pm. Mostly cloudy, with a high near 67. North wind around 5 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Mostly cloudy, with a low around 51. Calm wind.
Friday
A chance of showers. Mostly cloudy, with a high near 65. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Showers. Low around 48. Chance of precipitation is 80%.
Saturday
Showers. High near 60. Chance of precipitation is 80%.
Saturday Night
Showers. Low around 51. Chance of precipitation is 80%.
Sunday
Showers likely, mainly before 8am. Mostly cloudy, with a high near 68. Chance of precipitation is 60%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 55. Chance of precipitation is 50%.
Memorial Day
A chance of showers. Mostly cloudy, with a high near 75. Chance of precipitation is 30%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 57. Chance of precipitation is 30%.
Tuesday
A chance of showers. Mostly cloudy, with a high near 77. Chance of precipitation is 30%.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Newtown PA
40.22°N 74.93°W (Elev. 164 ft)
40.22°N 74.93°W (Elev. 164 ft)
7:15 pm EDT May 19, 2026
7pm EDT May 19, 2026-6pm EDT May 26, 2026



