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.

Fair

45°F

7°C

Humidity 77%
Wind Speed W 10 mph
Barometer 29.71 in (1005.6 mb)
Dewpoint 38°F (3°C)
Visibility 7.00 mi
Wind Chill40°F (4°C)
Last update 7 Jan 8:53 am EST
Extended Forecast for

2 Miles SW Hopewell NJ

  • Today

    Today: Patchy fog before 10am. Otherwise, partly sunny, with a high near 49. West wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 49 °F

    Patchy Fog
    then Partly
    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 32. West wind 5 to 10 mph.

    Low: 32 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 48. Calm wind becoming northwest around 5 mph.

    High: 48 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 32. Calm wind.

    Low: 32 °F

    Mostly Cloudy

  • Friday

    Friday: A chance of showers. Mostly cloudy, with a high near 55. Calm wind becoming south around 5 mph in the morning. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    High: 55 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers. Cloudy, with a low around 47. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 47 °F

    Chance
    Showers

  • Saturday

    Saturday: Showers. High near 59. Chance of precipitation is 90%.

    High: 59 °F

    Showers

  • Saturday Night

    Saturday Night: Showers, mainly before 1am. Low around 42. Chance of precipitation is 80%.

    Low: 42 °F

    Showers

  • Sunday

    Sunday: A chance of showers. Partly sunny, with a high near 50. Chance of precipitation is 40%.

    High: 50 °F

    Chance
    Showers

Detailed Forecast

Today
Patchy fog before 10am. Otherwise, partly sunny, with a high near 49. West wind 10 to 15 mph, with gusts as high as 30 mph.
Tonight
Partly cloudy, with a low around 32. West wind 5 to 10 mph.
Thursday
Mostly sunny, with a high near 48. Calm wind becoming northwest around 5 mph.
Thursday Night
Mostly cloudy, with a low around 32. Calm wind.
Friday
A chance of showers. Mostly cloudy, with a high near 55. Calm wind becoming south around 5 mph in the morning. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
A chance of showers. Cloudy, with a low around 47. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Showers. High near 59. Chance of precipitation is 90%.
Saturday Night
Showers, mainly before 1am. Low around 42. Chance of precipitation is 80%.
Sunday
A chance of showers. Partly sunny, with a high near 50. Chance of precipitation is 40%.
Sunday Night
Partly cloudy, with a low around 27.
Monday
Sunny, with a high near 39.
Monday Night
Mostly clear, with a low around 26.
Tuesday
Mostly sunny, with a high near 43.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW Hopewell NJ
 40.36°N 74.79°W (Elev. 184 ft)
Last Update:
5:57 am EST Jan 7, 2026
Forecast Valid:
9am EST Jan 7, 2026-6pm EST Jan 13, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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