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.

A Few Clouds

80°F

27°C

Humidity 41%
Wind Speed NW 7 mph
Barometer 29.84 in (1009.7 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 17 Apr 2:53 pm EDT
Extended Forecast for

2 Miles ENE Hopewell NJ

  • This Afternoon

    This Afternoon: Scattered showers and thunderstorms. Mostly cloudy, with a high near 80. Northwest wind around 10 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 80 °F

    Scattered
    Showers

  • Tonight

    Tonight: Scattered showers, mainly before 7pm. Mostly cloudy, with a low around 55. Northeast wind around 5 mph becoming east after midnight. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 55 °F

    Scattered
    Showers then
    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 72. East wind 5 to 10 mph.

    High: 72 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A chance of showers, with thunderstorms also possible after 5am. Mostly cloudy, with a low around 50. Southeast wind 5 to 10 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 50 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers and thunderstorms, then showers after 8am. High near 57. Northwest wind 5 to 15 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 57 °F

    Showers

  • Sunday Night

    Sunday Night: Showers likely, mainly before 8pm. Partly cloudy, with a low around 36. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 36 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 51.

    High: 51 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 29.

    Low: 29 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

Detailed Forecast

This Afternoon
Scattered showers and thunderstorms. Mostly cloudy, with a high near 80. Northwest wind around 10 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Scattered showers, mainly before 7pm. Mostly cloudy, with a low around 55. Northeast wind around 5 mph becoming east after midnight. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Partly sunny, with a high near 72. East wind 5 to 10 mph.
Saturday Night
A chance of showers, with thunderstorms also possible after 5am. Mostly cloudy, with a low around 50. Southeast wind 5 to 10 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers and thunderstorms, then showers after 8am. High near 57. Northwest wind 5 to 15 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Showers likely, mainly before 8pm. Partly cloudy, with a low around 36. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Mostly sunny, with a high near 51.
Monday Night
Mostly clear, with a low around 29.
Tuesday
Sunny, with a high near 58.
Tuesday Night
Partly cloudy, with a low around 44.
Wednesday
Mostly sunny, with a high near 71.
Wednesday Night
Partly cloudy, with a low around 46.
Thursday
Sunny, with a high near 72.
Thursday Night
Mostly clear, with a low around 46.
Friday
Mostly sunny, with a high near 71.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Hopewell NJ
 40.4°N 74.75°W (Elev. 233 ft)
Last Update:
10:26 am EDT Apr 17, 2026
Forecast Valid:
3pm EDT Apr 17, 2026-6pm EDT Apr 24, 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