National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Mostly Cloudy

50°F

10°C

Humidity 50%
Wind Speed NW 14 G 22 mph
Barometer 30.02 in (1016.1 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill45°F (7°C)
Last update 27 Mar 12:53 pm EDT
Extended Forecast for

Rocky Hill NJ

  • This Afternoon

    This Afternoon: A slight chance of rain after 3pm. Mostly cloudy, with a high near 53. North wind 5 to 10 mph. Chance of precipitation is 20%.

    High: 53 °F

    Slight Chance
    Rain

  • Tonight

    Tonight: Mostly cloudy, with a low around 28. Calm wind becoming north around 5 mph after midnight.

    Low: 28 °F

    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 43. Northwest wind 10 to 15 mph.

    High: 43 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 25. Northwest wind around 5 mph becoming calm in the evening.

    Low: 25 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 54. Light south wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 54 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 62.

    High: 62 °F

    Partly Sunny

  • Monday Night

    Monday Night: A chance of showers. Mostly cloudy, with a low around 46. Chance of precipitation is 30%.

    Low: 46 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers. Mostly cloudy, with a high near 67. Chance of precipitation is 30%.

    High: 67 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
A slight chance of rain after 3pm. Mostly cloudy, with a high near 53. North wind 5 to 10 mph. Chance of precipitation is 20%.
Tonight
Mostly cloudy, with a low around 28. Calm wind becoming north around 5 mph after midnight.
Saturday
Sunny, with a high near 43. Northwest wind 10 to 15 mph.
Saturday Night
Partly cloudy, with a low around 25. Northwest wind around 5 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 54. Light south wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Sunday Night
Partly cloudy, with a low around 40.
Monday
Partly sunny, with a high near 62.
Monday Night
A chance of showers. Mostly cloudy, with a low around 46. Chance of precipitation is 30%.
Tuesday
A chance of showers. Mostly cloudy, with a high near 67. Chance of precipitation is 30%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 53. Chance of precipitation is 30%.
Wednesday
A chance of showers. Partly sunny, with a high near 77. Chance of precipitation is 30%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 56. Chance of precipitation is 40%.
Thursday
A chance of showers. Mostly cloudy, with a high near 73. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Rocky Hill NJ
 40.39°N 74.66°W (Elev. 190 ft)
Last Update:
4:10 am EDT Mar 27, 2026
Forecast Valid:
1pm EDT Mar 27, 2026-6pm EDT Apr 2, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation