Current conditions at

Trenton-Mercer Airport (KTTN)

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

Fog/Mist

36°F

2°C

Humidity 100%
Wind Speed Calm
Barometer 30.26 in (1024.3 mb)
Dewpoint 36°F (2°C)
Visibility 1.00 mi
Last update 7 Mar 6:53 am EST
Detailed forecast for

Mercer County

Today
Cloudy. A chance of rain this morning. Areas of fog this morning. Highs in the upper 40s. South winds around 5 mph. Chance of rain 30 percent.
Tonight
Mostly cloudy. A chance of showers in the evening, then showers likely after midnight. Not as cool with lows in the upper 40s. Temperature rising into the mid 50s after midnight. Southwest winds 5 to 10 mph. Chance of rain 70 percent.
Sunday
Mostly cloudy. A chance of showers in the morning. Much warmer with highs in the upper 60s. Temperature falling into the lower 60s in the afternoon. West winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 40 percent.
Sunday Night
Partly cloudy. Lows around 40. West winds 5 to 10 mph.
Monday
Sunny. Highs in the upper 60s. Southwest winds 5 to 10 mph.
Monday Night
Mostly clear. Lows in the mid 40s.
Tuesday
Mostly sunny. Highs in the mid 70s.
Tuesday Night
Partly cloudy in the evening, then becoming mostly cloudy. Lows in the lower 50s.
Wednesday
Cloudy with a 40 percent chance of showers. Highs in the mid 70s.
Wednesday Night
Cloudy. A chance of showers in the evening, then showers likely after midnight. Lows around 50. Chance of rain 70 percent.
Thursday
Cloudy with a chance of showers. Cooler with highs in the lower 60s. Temperature falling into the upper 40s in the afternoon. Chance of rain 50 percent.
Thursday Night
Mostly cloudy in the evening, then becoming partly cloudy. Much colder with lows around 30.
Friday
Partly sunny in the morning, then becoming cloudy. Cooler with highs in the upper 40s.



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400 AM EST Sat Mar 7 2026
 
 

Additional Resources

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