Current conditions at

Trenton-Mercer Airport (KTTN)

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

Fair

36°F

2°C

Humidity 37%
Wind Speed SW 14 mph
Barometer 30.37 in (1028.1 mb)
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 18 Mar 3:53 pm EDT
Detailed forecast for

Mercer County

This Afternoon
Mostly sunny. Highs around 40. South winds around 5 mph.
Tonight
Mostly clear in the evening, then becoming partly cloudy. Cold with lows in the mid 20s. Southeast winds around 5 mph.
Thursday
Partly sunny. Highs in the upper 40s. South winds 5 to 10 mph.
Thursday Night
Mostly cloudy. Lows in the lower 30s. South winds around 5 mph.
Friday
Mostly sunny. Highs in the upper 50s. Southwest winds around 5 mph.
Friday Night
Mostly cloudy. A chance of rain in the evening, then rain likely after midnight. Lows in the lower 40s. Chance of rain 60 percent.
Saturday
Partly sunny. Rain likely in the morning. Highs in the lower 60s. Chance of rain 60 percent.
Saturday Night
Mostly cloudy. Lows in the lower 40s.
Sunday
Mostly cloudy in the morning, then partly sunny with a chance of rain in the afternoon. Highs in the mid 60s. Chance of rain 30 percent.
Sunday Night
Mostly cloudy with a 40 percent chance of rain. Lows in the lower 40s.
Monday
Mostly sunny. A chance of rain in the morning. Cooler with highs in the lower 50s. Chance of rain 30 percent.
Monday Night
Mostly clear. Colder with lows in the upper 20s.
Tuesday
Partly sunny. Highs in the upper 40s.



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103 PM EDT Wed Mar 18 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database