Current conditions at

Trenton-Mercer Airport (KTTN)

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

Fair

54°F

12°C

Humidity 45%
Wind Speed S 12 mph
Barometer 30.43 in (1030.1 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 9 Apr 6:53 pm EDT
Detailed forecast for

Mercer County

Tonight
Partly cloudy this evening, then becoming mostly cloudy. Patchy frost after midnight. Not as cool with lows in the mid 30s. South winds 5 to 10 mph.
Friday
Mostly cloudy in the morning, then clearing. Patchy fog and frost in the morning. Warmer with highs around 70. Southwest winds 5 to 10 mph.
Friday Night
Mostly cloudy. Not as cool with lows in the upper 40s. Southwest winds 5 to 10 mph, becoming west 10 to 15 mph after midnight.
Saturday
Sunny. Highs in the lower 60s. Northwest winds around 15 mph with gusts up to 30 mph.
Saturday Night
Mostly clear. Cooler with lows in the upper 30s. Northwest winds 10 to 15 mph with gusts up to 25 mph, becoming north around 5 mph after midnight.
Sunday
Mostly sunny. Highs in the mid 60s.
Sunday Night
Mostly cloudy. Not as cool with lows in the upper 40s.
Monday
Mostly cloudy. Much warmer with highs in the upper 70s.
Monday Night
Mostly cloudy in the evening, then becoming partly cloudy. Not as cool with lows around 60.
Tuesday
Mostly sunny. Highs in the mid 80s.
Tuesday Night
Partly cloudy in the evening, then becoming mostly cloudy. Lows in the lower 60s.
Wednesday
Partly sunny. Hot with highs in the upper 80s.
Wednesday Night
Mostly cloudy. Lows in the lower 60s.
Thursday
Partly sunny. Highs in the lower 80s.



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447 PM EDT Thu Apr 9 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database