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

Tracking Weekend Storm Impacts

A storm and trailing cold front will continue to slowly move through the Gulf Coast and Southeast U.S. through this weekend with widespread rain showers and isolated thunderstorms. A fast-moving clipper storm may bring several inches of snow to the north-central Plains, Midwest, eastern Great Lakes, and Northeast regions this weekend. Read More >

Current conditions at

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Overcast

37°F

3°C

Humidity 62%
Wind Speed W 3 mph
Barometer 30.12 in (1019.6 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 7 Dec 9:53 am EST
Extended Forecast for

Trenton, Mercer County Airport NJ

  • Today

    Today: Mostly cloudy, with a high near 40. Northwest wind around 5 mph becoming southwest in the afternoon.

    High: 40 °F

    Mostly Cloudy

  • Tonight

    Tonight: Partly cloudy, with a low around 24. Southwest wind 5 to 15 mph becoming northwest after midnight.

    Low: 24 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 31. North wind 10 to 15 mph.

    High: 31 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 14. North wind around 5 mph becoming calm after midnight.

    Low: 14 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 34. Light and variable wind becoming south 5 to 10 mph in the afternoon.

    High: 34 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of rain. Cloudy, with a high near 45. Chance of precipitation is 40%.

    High: 45 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A chance of rain before 1am. Mostly cloudy, with a low around 33. Chance of precipitation is 30%.

    Low: 33 °F

    Chance Rain

  • Thursday

    Thursday: Partly sunny, with a high near 43.

    High: 43 °F

    Partly Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 40. Northwest wind around 5 mph becoming southwest in the afternoon.
Tonight
Partly cloudy, with a low around 24. Southwest wind 5 to 15 mph becoming northwest after midnight.
Monday
Partly sunny, with a high near 31. North wind 10 to 15 mph.
Monday Night
Partly cloudy, with a low around 14. North wind around 5 mph becoming calm after midnight.
Tuesday
Mostly sunny, with a high near 34. Light and variable wind becoming south 5 to 10 mph in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 27.
Wednesday
A chance of rain. Cloudy, with a high near 45. Chance of precipitation is 40%.
Wednesday Night
A chance of rain before 1am. Mostly cloudy, with a low around 33. Chance of precipitation is 30%.
Thursday
Partly sunny, with a high near 43.
Thursday Night
A chance of rain and snow. Mostly cloudy, with a low around 28. Chance of precipitation is 40%.
Friday
A chance of rain and snow. Mostly cloudy, with a high near 38. Chance of precipitation is 40%.
Friday Night
A chance of snow. Mostly cloudy, with a low around 22. Chance of precipitation is 30%.
Saturday
Partly sunny, with a high near 31.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Trenton, Mercer County Airport NJ
 40.27°N 74.8°W (Elev. 157 ft)
Last Update:
6:32 am EST Dec 7, 2025
Forecast Valid:
10am EST Dec 7, 2025-6pm EST Dec 13, 2025
 
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