Current conditions at

Trenton-Mercer Airport (KTTN)

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

Fair

44°F

7°C

Humidity 41%
Wind Speed W 18 G 29 mph
Barometer 29.93 in (1013.0 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 14 Mar 8:53 am EDT
Detailed forecast for

Mercer County

Today
Sunny. Highs in the lower 50s. West winds 15 to 20 mph with gusts up to 40 mph.
Tonight
Mostly clear in the evening, then becoming mostly cloudy. Lows in the lower 30s. Northwest winds 10 to 15 mph with gusts up to 25 mph, becoming north around 5 mph after midnight.
Sunday
Mostly cloudy in the morning, then becoming partly sunny. Highs in the lower 50s. East winds 10 to 15 mph.
Sunday Night
A chance of rain in the evening, then showers after midnight. Not as cool with lows in the mid 40s. Temperature rising into the lower 50s after midnight. Southeast winds 10 to 15 mph with gusts up to 25 mph. Chance of rain near 100 percent.
Monday
Showers in the morning, then showers with a chance of thunderstorms in the afternoon. Breezy, warmer with highs in the upper 60s. South winds 15 to 25 mph. Gusts up to 40 mph in the afternoon. Chance of rain near 100 percent.
Monday Night
Showers, breezy, cooler with lows in the lower 30s. Chance of rain near 100 percent.
Tuesday
Mostly sunny. A chance of snow in the morning. Much cooler with highs around 40. Chance of snow 30 percent.
Tuesday Night
Partly cloudy in the evening, then clearing. Cold with lows in the lower 20s.
Wednesday
Sunny in the morning, then becoming partly sunny. Highs in the lower 40s.
Wednesday Night
Mostly cloudy. Cold with lows in the upper 20s.
Thursday
Partly sunny. Highs in the upper 40s.
Thursday Night
Partly cloudy. Cold with lows in the lower 30s.
Friday
Mostly sunny. Highs in the lower 50s.



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400 AM EDT Sat Mar 14 2026
 
 

Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database