Current conditions at
Trenton-Mercer Airport (KTTN)
Lat: 40.28°NLon: 74.82°WElev: 210ft.
Fair
45°F
7°C
| Humidity | 56% |
| Wind Speed | N 6 mph |
| Barometer | 30.20 in (1022.1 mb) |
| Dewpoint | 30°F (-1°C) |
| Visibility | 10.00 mi |
| Wind Chill | 42°F (6°C) |
| Last update | 12 May 6:53 am EDT |
Extended Forecast for
Rocky Hill NJ
Today

High: 67 °F
Sunny
Tonight

Low: 48 °F
Increasing
CloudsWednesday
High: 74 °F
Mostly Cloudy
then Chance
ShowersWednesday Night
Low: 52 °F
Showers
Likely then
ShowersThursday

High: 67 °F
Showers
Thursday Night

Low: 49 °F
Slight Chance
ShowersFriday

High: 69 °F
Mostly Sunny
Friday Night

Low: 51 °F
Partly Cloudy
Saturday

High: 80 °F
Sunny
Detailed Forecast
Today
Sunny, with a high near 67. West wind around 5 mph.
Tonight
Increasing clouds, with a low around 48. Calm wind becoming south around 5 mph after midnight.
Wednesday
A chance of showers after 5pm. Mostly cloudy, with a high near 74. South wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Showers likely before 11pm, then showers likely and possibly a thunderstorm between 11pm and 2am, then showers after 2am. Low around 52. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers, with thunderstorms also possible after 2pm. High near 67. West wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A slight chance of showers. Mostly cloudy, with a low around 49. Chance of precipitation is 20%.
Friday
Mostly sunny, with a high near 69.
Friday Night
Partly cloudy, with a low around 51.
Saturday
Sunny, with a high near 80.
Saturday Night
Mostly clear, with a low around 59.
Sunday
Sunny, with a high near 85.
Sunday Night
Partly cloudy, with a low around 60.
Monday
Mostly sunny, with a high near 89.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Rocky Hill NJ
40.39°N 74.66°W (Elev. 190 ft)
40.39°N 74.66°W (Elev. 190 ft)
4:08 am EDT May 12, 2026
7am EDT May 12, 2026-6pm EDT May 18, 2026


