Current conditions at

Trenton-Mercer Airport (KTTN)

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

Overcast

45°F

7°C

Humidity 83%
Wind Speed E 7 mph
Barometer 30.27 in (1024.5 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 4 Mar 11:53 am EST
Detailed forecast for

Mercer County

Today
Patchy fog this morning. Mostly cloudy with a 20 percent chance of rain. Not as cool with highs around 50. Light and variable winds, becoming northeast around 5 mph this afternoon.
Tonight
Mostly cloudy. A slight chance of rain in the evening, then rain likely after midnight. Patchy fog. Lows in the upper 30s. Light and variable winds. Chance of rain 70 percent.
Thursday
Patchy fog in the morning. Showers. Highs in the upper 40s. Northeast winds around 5 mph. Chance of rain 80 percent.
Thursday Night
Showers. Patchy fog after midnight. Lows in the upper 30s. Northeast winds around 5 mph. Chance of rain 90 percent.
Friday
Mostly cloudy. Patchy fog in the morning. Highs in the upper 40s. Northeast winds around 5 mph.
Friday Night
Cloudy. Near steady temperature in the lower 40s.
Saturday
Mostly cloudy in the morning, then becoming partly sunny. Much warmer with highs in the upper 60s.
Saturday Night
Showers likely, mainly in the evening. Lows around 50. Chance of rain 70 percent.
Sunday
Mostly sunny. Highs in the mid 60s.
Sunday Night
Partly cloudy. Lows in the mid 40s.
Monday
Sunny. Highs in the upper 60s.
Monday Night
Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 40s.
Tuesday
Mostly sunny. Highs in the lower 70s.



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400 AM EST Wed Mar 4 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database