Current conditions at

Trenton-Mercer Airport (KTTN)

Lat: 40.28° N Lon: 74.82° W Elev: 210 ft.

Fair

83°F

28°C

Humidity 55%
Wind Speed S 9 mph
Barometer 30.09 in (1018.0 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 18 May 8:53 pm EDT
Detailed forecast for

Lower Bucks

Tonight
Mostly clear. Lows around 70. Southwest winds 5 to 10 mph.
Tuesday
Sunny, hot with highs in the mid 90s. Southwest winds around 5 mph, becoming west 10 to 15 mph with gusts up to 25 mph in the afternoon.
Tuesday Night
Partly cloudy. Lows in the mid 70s. Southwest winds 5 to 10 mph.
Wednesday
Sunny in the morning, then mostly cloudy with showers with a chance of thunderstorms in the afternoon. Hot with highs in the lower 90s. West winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 80 percent.
Wednesday Night
Mostly cloudy. Showers with a chance of thunderstorms in the evening, then a chance of showers after midnight. Much cooler with lows in the mid 50s. North winds 5 to 10 mph. Chance of rain 80 percent.
Thursday
Partly sunny. Not as warm with highs around 70.
Thursday Night
Partly cloudy in the evening, then becoming mostly cloudy. Lows around 50.
Friday
Partly sunny in the morning, then becoming mostly cloudy. A 40 percent chance of showers. Highs in the upper 60s.
Friday Night
Mostly cloudy. A chance of showers in the evening, then showers likely after midnight. Lows in the upper 40s. Chance of rain 70 percent.
Saturday
Showers. Highs in the mid 60s. Chance of rain 80 percent.
Saturday Night
Showers likely. Lows in the lower 50s. Chance of rain 70 percent.
Sunday
Mostly cloudy. Showers likely, mainly in the morning. Highs around 70. Chance of rain 60 percent.
Sunday Night
Mostly cloudy with a chance of showers. Lows in the mid 50s. Chance of rain 50 percent.
Memorial Day
Mostly cloudy with a 40 percent chance of showers. Highs in the mid 70s.



Basemap Options
Click map to change the forecast location
Loading map...
400 PM EDT Mon May 18 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database