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.

Mostly Cloudy

70°F

21°C

Humidity 68%
Wind Speed W 6 mph
Barometer 29.76 in (1006.9 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 17 Apr 3:53 am EDT
Extended Forecast for

Windsor NJ

  • Overnight

    Overnight: A slight chance of showers. Mostly cloudy, with a low around 65. Northwest wind around 5 mph. Chance of precipitation is 20%.

    Low: 65 °F

    Slight Chance
    Showers

  • Friday

    Friday: Isolated showers, then scattered showers and thunderstorms after 2pm. Partly sunny, with a high near 81. Northwest 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.

    High: 81 °F

    Partly Sunny
    then
    Scattered
    Showers

  • Friday Night

    Friday Night: Scattered showers, mainly before 7pm. Mostly cloudy, with a low around 56. 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: 56 °F

    Scattered
    Showers then
    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 71. Southeast wind 5 to 10 mph.

    High: 71 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A chance of showers between 2am and 5am, then a chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 51. 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: 51 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: A chance of showers and thunderstorms, then showers after 8am. High near 58. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 58 °F

    Showers

  • Sunday Night

    Sunday Night: Showers likely before 8pm. Partly cloudy, with a low around 36. Chance of precipitation is 60%.

    Low: 36 °F

    Showers
    Likely then
    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 52.

    High: 52 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 30.

    Low: 30 °F

    Mostly Clear

Detailed Forecast

Overnight
A slight chance of showers. Mostly cloudy, with a low around 65. Northwest wind around 5 mph. Chance of precipitation is 20%.
Friday
Isolated showers, then scattered showers and thunderstorms after 2pm. Partly sunny, with a high near 81. Northwest 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.
Friday Night
Scattered showers, mainly before 7pm. Mostly cloudy, with a low around 56. 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 71. Southeast wind 5 to 10 mph.
Saturday Night
A chance of showers between 2am and 5am, then a chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 51. 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 58. 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 before 8pm. Partly cloudy, with a low around 36. Chance of precipitation is 60%.
Monday
Mostly sunny, with a high near 52.
Monday Night
Mostly clear, with a low around 30.
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 47.
Thursday
Sunny, with a high near 72.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Windsor NJ
 40.21°N 74.64°W (Elev. 98 ft)
Last Update:
2:58 am EDT Apr 17, 2026
Forecast Valid:
4am EDT Apr 17, 2026-6pm EDT Apr 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