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

90°F

32°C

Humidity 42%
Wind Speed SW 7 mph
Barometer 30.13 in (1019.7 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index91°F (33°C)
Last update 18 May 12:53 pm EDT
Extended Forecast for

3 Miles N Windsor NJ

Heat Advisory until May 19, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory until May 19, 08:00pm

    NOW until 8:00pm Tue

    Heat Advisory

  • This Afternoon

    High: 92 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 68. South wind 5 to 10 mph.

    Low: 68 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 96. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 96 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 73. Southwest wind around 10 mph.

    Low: 73 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm after 2pm. High near 93. West wind 5 to 15 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 93 °F

    Sunny then
    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Low around 55. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 55 °F

    Showers then
    Chance
    Showers

  • Thursday

    Thursday: Partly sunny, with a high near 71.

    High: 71 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 50.

    Low: 50 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Sunny, with a high near 92. South wind 5 to 10 mph.
Tonight
Mostly clear, with a low around 68. South wind 5 to 10 mph.
Tuesday
Mostly sunny, with a high near 96. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 73. Southwest wind around 10 mph.
Wednesday
Showers and possibly a thunderstorm after 2pm. High near 93. West wind 5 to 15 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Low around 55. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Partly sunny, with a high near 71.
Thursday Night
Mostly cloudy, with a low around 50.
Friday
A chance of showers after 8am. Mostly cloudy, with a high near 66. Chance of precipitation is 40%.
Friday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 50. Chance of precipitation is 70%.
Saturday
Showers likely. Cloudy, with a high near 68. Chance of precipitation is 70%.
Saturday Night
Showers likely. Mostly cloudy, with a low around 54. Chance of precipitation is 60%.
Sunday
A chance of showers. Cloudy, with a high near 72. Chance of precipitation is 50%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Windsor NJ
 40.25°N 74.6°W (Elev. 92 ft)
Last Update:
4:09 am EDT May 18, 2026
Forecast Valid:
1pm EDT May 18, 2026-6pm EDT May 24, 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