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Current conditions at
Trenton-Mercer Airport (KTTN)
Lat: 40.28°NLon: 74.82°WElev: 210ft.
Overcast
63°F
17°C
| Humidity | 97% |
| Wind Speed | N 3 mph |
| Barometer | 29.60 in (1001.7 mb) |
| Dewpoint | 62°F (17°C) |
| Visibility | 10.00 mi |
| Last update | 12 Mar 12:53 am EDT |
Extended Forecast for
Trenton, Mercer County Airport NJ
Overnight

Low: 45 °F
Chance
ShowersThursday
High: 53 °F⇓
Rain Likely
then
Rain/Snow
LikelyThursday Night

Low: 29 °F
Gradual
ClearingFriday

High: 49 °F
Partly Sunny
Friday Night

Low: 38 °F
Partly Cloudy
Saturday

High: 51 °F
Sunny
Saturday Night

Low: 33 °F
Mostly Cloudy
Sunday

High: 53 °F
Cloudy
Sunday Night
Low: 45 °F
Chance Rain
then Rain
Detailed Forecast
Overnight
A slight chance of showers and thunderstorms, then a chance of showers after 3am. Mostly cloudy, with a low around 45. Southwest wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Rain likely before 3pm, then a chance of rain and snow. Cloudy, with a temperature falling to around 40 by 4pm. Northwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Thursday Night
Mostly cloudy during the early evening, then gradual clearing, with a low around 29. West wind around 5 mph becoming calm after midnight.
Friday
Partly sunny, with a high near 49. South wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph.
Friday Night
Partly cloudy, with a low around 38. South wind 10 to 15 mph.
Saturday
Sunny, with a high near 51.
Saturday Night
Mostly cloudy, with a low around 33.
Sunday
Cloudy, with a high near 53.
Sunday Night
Rain, mainly after 2am. Low around 45. Chance of precipitation is 90%.
Monday
Rain. High near 63. Chance of precipitation is 90%.
Monday Night
Rain and snow likely. Mostly cloudy, with a low around 29. Chance of precipitation is 60%.
Tuesday
A chance of snow. Mostly sunny, with a high near 38. Chance of precipitation is 30%.
Tuesday Night
Partly cloudy, with a low around 22.
Wednesday
Mostly sunny, with a high near 39.
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)
10:05 pm EDT Mar 11, 2026
1am EDT Mar 12, 2026-6pm EDT Mar 18, 2026


