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

Hazardous Weather Conditions

Current conditions at

Trenton, Mercer County Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Fog/Mist

24°C

75°F

Humidity 96%
Wind Speed SW 6 km/h
Barometer 1010.8 mb (29.87 in)
Dewpoint 23°C (74°F)
Visibility 8 km
Last update 18 Jun 10:53 pm EDT
Extended Forecast for

Windsor NJ

Heat Advisory June 19, 11:00am until June 19, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Tonight

    Tonight: Partly cloudy, with a low around 21. Calm wind.

    Low: 21 °C

    Partly Cloudy

  • Juneteenth

    Juneteenth: A chance of showers and thunderstorms, mainly after 4pm. Sunny, with a high near 33. Southwest wind 10 to 15 km/h increasing to 20 to 25 km/h in the afternoon. Chance of precipitation is 30%. New rainfall amounts between 2.5 and 5 mm possible.

    High: 33 °C

    Mostly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely, mainly before 8pm. Partly cloudy, with a low around 18. Southwest wind around 15 km/h. Chance of precipitation is 60%. New precipitation amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.

    Low: 18 °C

    T-storms
    Likely then
    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 28. Northwest wind around 15 km/h.

    High: 28 °C

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 18. West wind 5 to 10 km/h.

    Low: 18 °C

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 32.

    High: 32 °C

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 21.

    Low: 21 °C

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 32.

    High: 32 °C

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 22.

    Low: 22 °C

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 21. Calm wind.
Juneteenth
A chance of showers and thunderstorms, mainly after 4pm. Sunny, with a high near 33. Southwest wind 10 to 15 km/h increasing to 20 to 25 km/h in the afternoon. Chance of precipitation is 30%. New rainfall amounts between 2.5 and 5 mm possible.
Thursday Night
Showers and thunderstorms likely, mainly before 8pm. Partly cloudy, with a low around 18. Southwest wind around 15 km/h. Chance of precipitation is 60%. New precipitation amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.
Friday
Sunny, with a high near 28. Northwest wind around 15 km/h.
Friday Night
Mostly clear, with a low around 18. West wind 5 to 10 km/h.
Saturday
Mostly sunny, with a high near 32.
Saturday Night
Partly cloudy, with a low around 21.
Sunday
Partly sunny, with a high near 32.
Sunday Night
Partly cloudy, with a low around 22.
Monday
Mostly sunny, with a high near 34.
Monday Night
Mostly clear, with a low around 23.
Tuesday
Sunny and hot, with a high near 36.
Tuesday Night
Mostly clear, with a low around 23.
Wednesday
Sunny, with a high near 35.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Windsor NJ
 40.23°N 74.58°W (Elev. 98 m)
Last Update:
9:48 pm EDT Jun 18, 2025
Forecast Valid:
11pm EDT Jun 18, 2025-6pm EDT Jun 25, 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