Current conditions at
Trenton-Mercer Airport (KTTN)
Lat: 40.28°NLon: 74.82°WElev: 210ft.
Mostly Cloudy
59°F
15°C
| Humidity | 90% |
| Wind Speed | Calm |
| Barometer | 29.92 in (1012.7 mb) |
| Dewpoint | 56°F (13°C) |
| Visibility | 9.00 mi |
| Last update | 10 May 10:53 am EDT |
Extended Forecast for
Trenton, Mercer County Airport NJ
Today

High: 78 °F
Chance
ShowersTonight

Low: 48 °F
Chance
ShowersMonday
High: 65 °F
Slight Chance
Showers then
Partly SunnyMonday Night

Low: 43 °F
Partly Cloudy
Tuesday

High: 68 °F
Sunny
Tuesday Night

Low: 47 °F
Partly Cloudy
Wednesday

High: 68 °F
Chance
ShowersWednesday Night

Low: 51 °F
Showers
Thursday

High: 68 °F
Showers
Likely
Detailed Forecast
Today
A chance of showers and thunderstorms, mainly between 4pm and 5pm. Mostly sunny, with a high near 78. West wind 5 to 10 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers and thunderstorms. Mostly cloudy, with a low around 48. Northwest wind around 5 mph becoming calm. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
A slight chance of showers before 9am. Cloudy, then gradually becoming mostly sunny, with a high near 65. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 20%.
Monday Night
Partly cloudy, with a low around 43. North wind around 5 mph.
Tuesday
Sunny, with a high near 68. North wind around 5 mph.
Tuesday Night
Partly cloudy, with a low around 47.
Wednesday
A chance of showers. Mostly cloudy, with a high near 68. Chance of precipitation is 40%.
Wednesday Night
Showers and possibly a thunderstorm. Low around 51. Chance of precipitation is 90%.
Thursday
Showers likely. Mostly cloudy, with a high near 68. Chance of precipitation is 70%.
Thursday Night
Partly cloudy, with a low around 49.
Friday
Mostly sunny, with a high near 71.
Friday Night
Partly cloudy, with a low around 52.
Saturday
Mostly sunny, with a high near 78.
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)
8:06 am EDT May 10, 2026
11am EDT May 10, 2026-6pm EDT May 16, 2026


