Current conditions at
Trenton-Mercer Airport (KTTN)
Lat: 40.28°NLon: 74.82°WElev: 210ft.
Overcast
42°F
6°C
| Humidity | 89% |
| Wind Speed | Calm |
| Barometer | 30.20 in (1022.1 mb) |
| Dewpoint | 39°F (4°C) |
| Visibility | 9.00 mi |
| Last update | 5 Mar 4:53 am EST |
Extended Forecast for
Trenton, Mercer County Airport NJ
Overnight

Low: 39 °F
Rain
Thursday
High: 44 °F
Rain and
Patchy Fog
then Rain
Likely and
FogThursday Night

Low: 37 °F
Rain and Fog
Friday
High: 45 °F
Areas Fog
then CloudyFriday Night

Low: 38 °F
Chance
Showers and
Patchy FogSaturday
High: 58 °F
Patchy Fog
then CloudySaturday Night

Low: 51 °F
Showers
LikelySunday

High: 64 °F
Partly Sunny
Sunday Night

Low: 43 °F
Partly Cloudy
Detailed Forecast
Overnight
Rain. Low around 39. Northeast wind around 5 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Rain, mainly before 2pm. Patchy fog before 11am, then widespread fog after 2pm. High near 44. Northeast wind 5 to 10 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Rain, mainly before 3am. Widespread fog, mainly after 3am. Low around 37. Northeast wind 10 to 15 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Friday
Areas of fog before 10am. Otherwise, cloudy, with a high near 45. East wind around 5 mph.
Friday Night
A chance of showers, mainly after 1am. Patchy fog after 1am. Otherwise, cloudy, with a low around 38. East wind around 5 mph becoming calm. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Patchy fog before 10am. Otherwise, cloudy, with a high near 58.
Saturday Night
Showers likely. Mostly cloudy, with a low around 51. Chance of precipitation is 70%.
Sunday
Partly sunny, with a high near 64.
Sunday Night
Partly cloudy, with a low around 43.
Monday
Sunny, with a high near 63.
Monday Night
Partly cloudy, with a low around 47.
Tuesday
Mostly sunny, with a high near 73.
Tuesday Night
Partly cloudy, with a low around 54.
Wednesday
A chance of showers. Partly sunny, with a high near 74. Chance of precipitation is 30%.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Trenton, Mercer County Airport NJ
40.28°N 74.83°W (Elev. 200 ft)
40.28°N 74.83°W (Elev. 200 ft)
5:23 am EST Mar 5, 2026
5am EST Mar 5, 2026-6pm EDT Mar 11, 2026


