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

Hazardous Weather Conditions

Current conditions at

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Fair

63°F

17°C

Humidity 63%
Wind Speed E 12 mph
Barometer 29.96 in (1014.0 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 18 Apr 4:53 pm EDT
Extended Forecast for

Windsor NJ

Freeze Watch April 21, 12:00am until April 21, 09:00am
Click here for hazard details and duration
Freeze Watch

  • Tonight

    Tonight: Areas of fog after midnight. Otherwise, increasing clouds, with a low around 49. Southeast wind 5 to 10 mph.

    Low: 49 °F

    Mostly Cloudy
    then Areas
    Fog

  • Sunday

    Sunday: Showers, mainly before 2pm. High near 56. Northwest wind 10 to 15 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 56 °F

    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 38. Northwest wind around 5 mph becoming calm in the evening.

    Low: 38 °F

    Partly Cloudy

  • Monday

    Monday: A slight chance of showers. Mostly sunny, with a high near 53. Northwest wind 5 to 10 mph. Chance of precipitation is 20%.

    High: 53 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: Patchy frost after midnight. Otherwise, mostly clear, with a low around 30. North wind around 5 mph.

    Low: 30 °F

    Partly Cloudy
    then Patchy
    Frost

  • Tuesday

    Tuesday: Areas of frost before 9am. Otherwise, sunny, with a high near 54.

    High: 54 °F

    Areas Frost
    then Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 39.

    Low: 39 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 67.

    High: 67 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

Detailed Forecast

Tonight
Areas of fog after midnight. Otherwise, increasing clouds, with a low around 49. Southeast wind 5 to 10 mph.
Sunday
Showers, mainly before 2pm. High near 56. Northwest wind 10 to 15 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Partly cloudy, with a low around 38. Northwest wind around 5 mph becoming calm in the evening.
Monday
A slight chance of showers. Mostly sunny, with a high near 53. Northwest wind 5 to 10 mph. Chance of precipitation is 20%.
Monday Night
Patchy frost after midnight. Otherwise, mostly clear, with a low around 30. North wind around 5 mph.
Tuesday
Areas of frost before 9am. Otherwise, sunny, with a high near 54.
Tuesday Night
Partly cloudy, with a low around 39.
Wednesday
Partly sunny, with a high near 67.
Wednesday Night
Mostly clear, with a low around 42.
Thursday
Sunny, with a high near 72.
Thursday Night
Partly cloudy, with a low around 47.
Friday
Mostly sunny, with a high near 73.
Friday Night
Partly cloudy, with a low around 49.
Saturday
A chance of showers. Partly sunny, with a high near 68. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Windsor NJ
 40.23°N 74.58°W (Elev. 98 ft)
Last Update:
4:11 pm EDT Apr 18, 2026
Forecast Valid:
4pm EDT Apr 18, 2026-6pm EDT Apr 25, 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