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

Excessive Rainfall and Potential Tropical Cyclone in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce locally considerable flash flooding over parts of the northwestern Gulf Coast, lower Mississippi River Valley, and Deep South through Thursday. Potential Tropical Cyclone One is forecast to become a tropical storm (Arthur) as it moves along or just off the northwestern Gulf coast through Wednesday. An outbreak of severe weather is forecast in the Midwest Wednesday. Read More >

Current conditions at

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

A Few Clouds

70°F

21°C

Humidity 71%
Wind Speed Vrbl 3 mph
Barometer 29.82 in (1009.3 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 17 Jun 8:53 am EDT
Extended Forecast for

3 Miles SE Sergeantsville NJ

  • Today

    Today: A chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 83. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 83 °F

    Mostly Sunny
    then Chance
    Showers

  • Tonight

    Tonight: Patchy fog after 3am. Otherwise, increasing clouds, with a low around 65. Southeast wind around 5 mph.

    Low: 65 °F

    Partly Cloudy
    then Patchy
    Fog

  • Thursday

    Thursday: Showers and thunderstorms likely before 3pm, then a chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 89. South wind 10 to 15 mph, with gusts as high as 35 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 89 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 65. West wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 65 °F

    Increasing
    Clouds

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 82. West wind around 10 mph, with gusts as high as 20 mph.

    High: 82 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Clear, with a low around 59.

    Low: 59 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 58.

    Low: 58 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

Detailed Forecast

Today
A chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 83. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Patchy fog after 3am. Otherwise, increasing clouds, with a low around 65. Southeast wind around 5 mph.
Thursday
Showers and thunderstorms likely before 3pm, then a chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 89. South wind 10 to 15 mph, with gusts as high as 35 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Increasing clouds, with a low around 65. West wind 5 to 10 mph, with gusts as high as 20 mph.
Juneteenth
Mostly sunny, with a high near 82. West wind around 10 mph, with gusts as high as 20 mph.
Friday Night
Clear, with a low around 59.
Saturday
Sunny, with a high near 80.
Saturday Night
Clear, with a low around 58.
Sunday
Sunny, with a high near 82.
Sunday Night
A chance of showers after 2am. Mostly cloudy, with a low around 59. Chance of precipitation is 40%.
Monday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 81. Chance of precipitation is 60%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Chance of precipitation is 50%.
Tuesday
Mostly sunny, with a high near 82.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Sergeantsville NJ
 40.42°N 74.92°W (Elev. 200 ft)
Last Update:
4:07 am EDT Jun 17, 2026
Forecast Valid:
9am EDT Jun 17, 2026-6pm EDT Jun 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