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.

Overcast

32°F

0°C

Humidity 59%
Wind Speed Calm
Barometer 30.03 in (1016.6 mb)
Dewpoint 19°F (-7°C)
Visibility NA
Last update 17 Jan 3:53 am EST
Extended Forecast for

2 Miles ENE Hopewell NJ

  • Overnight

    Overnight: A chance of snow. Cloudy, with a low around 25. South wind around 5 mph. Chance of precipitation is 40%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 25 °F

    Chance Snow

  • Saturday

    Saturday: Snow, possibly mixed with rain, mainly before 2pm. High near 39. Southwest wind 5 to 10 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 39 °F

    Chance Snow
    then
    Rain/Snow

  • Saturday Night

    Saturday Night: A slight chance of snow after 4am. Mostly cloudy, with a low around 27. Southwest wind around 5 mph becoming calm. Chance of precipitation is 20%.

    Low: 27 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Sunday

    Sunday: A chance of snow. Cloudy, with a high near 35. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 50%. New snow accumulation of less than one inch possible.

    High: 35 °F

    Chance Snow

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 18. West wind around 5 mph.

    Low: 18 °F

    Partly Cloudy

  • M.L.King Day

    M.L.King Day: Mostly sunny, with a high near 34.

    High: 34 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 11.

    Low: 11 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 21.

    High: 21 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 9.

    Low: 9 °F

    Mostly Clear

Detailed Forecast

Overnight
A chance of snow. Cloudy, with a low around 25. South wind around 5 mph. Chance of precipitation is 40%. Total nighttime snow accumulation of less than a half inch possible.
Saturday
Snow, possibly mixed with rain, mainly before 2pm. High near 39. Southwest wind 5 to 10 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Saturday Night
A slight chance of snow after 4am. Mostly cloudy, with a low around 27. Southwest wind around 5 mph becoming calm. Chance of precipitation is 20%.
Sunday
A chance of snow. Cloudy, with a high near 35. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 50%. New snow accumulation of less than one inch possible.
Sunday Night
Partly cloudy, with a low around 18. West wind around 5 mph.
M.L.King Day
Mostly sunny, with a high near 34.
Monday Night
Partly cloudy, with a low around 11.
Tuesday
Sunny, with a high near 21.
Tuesday Night
Mostly clear, with a low around 9.
Wednesday
Mostly sunny, with a high near 33.
Wednesday Night
Mostly cloudy, with a low around 25.
Thursday
Partly sunny, with a high near 39.
Thursday Night
Mostly cloudy, with a low around 20.
Friday
Mostly sunny, with a high near 32.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Hopewell NJ
 40.4°N 74.75°W (Elev. 233 ft)
Last Update:
4:11 am EST Jan 17, 2026
Forecast Valid:
4am EST Jan 17, 2026-6pm EST Jan 23, 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