Heavy to Excessive Rains in The Four Corners Region and Midwest; Heat Persists in the South-Central U.S.

Repeated rounds of showers and thunderstorms could bring a flash flooding threat across the Four Corners region and from the mid-Mississippi Valley into the lower Great Lakes. Hot temperatures and high humidity will continue to challenge daily records from the Southern Plains to the lower Mississippi Valley. Read More >

Current conditions at

Trenton-Mercer Airport (KTTN)

Lat: 40.28°NLon: 74.82°WElev: 210ft.

Fair

66°F

19°C

Humidity 78%
Wind Speed SW 3 mph
Barometer 30.38 in (1028.2 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 16 Sep 9:53 am EDT
Extended Forecast for

Jamesburg NJ

  • Today

    Today: Sunny, with a high near 82. Southwest wind around 5 mph.

    High: 82 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 65. Southwest wind around 5 mph.

    Low: 65 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 85. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 85 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers before 2am.  Mostly cloudy, with a low around 67. South wind around 5 mph.  Chance of precipitation is 20%.

    Low: 67 °F

    Slight Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 82. North wind around 5 mph.

    High: 82 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 73.

    High: 73 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A chance of showers after 2am.  Mostly cloudy, with a low around 56. Chance of precipitation is 40%.

    Low: 56 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Showers likely, mainly after 8am.  Mostly cloudy, with a high near 74. Chance of precipitation is 60%.

    High: 74 °F

    Showers
    Likely

Detailed Forecast

Today
Sunny, with a high near 82. Southwest wind around 5 mph.
Tonight
Partly cloudy, with a low around 65. Southwest wind around 5 mph.
Thursday
Partly sunny, with a high near 85. Calm wind becoming southwest around 5 mph in the afternoon.
Thursday Night
A slight chance of showers before 2am. Mostly cloudy, with a low around 67. South wind around 5 mph. Chance of precipitation is 20%.
Friday
Mostly sunny, with a high near 82. North wind around 5 mph.
Friday Night
Partly cloudy, with a low around 56.
Saturday
Partly sunny, with a high near 73.
Saturday Night
A chance of showers after 2am. Mostly cloudy, with a low around 56. Chance of precipitation is 40%.
Sunday
Showers likely, mainly after 8am. Mostly cloudy, with a high near 74. Chance of precipitation is 60%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 58. Chance of precipitation is 50%.
Monday
A chance of showers. Mostly cloudy, with a high near 74. Chance of precipitation is 40%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 58. Chance of precipitation is 40%.
Tuesday
A chance of showers. Mostly cloudy, with a high near 73. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Jamesburg NJ
 40.36°N 74.44°W (Elev. 56 ft)
4:09 am EDT Sep 16, 2026
10am EDT Sep 16, 2026-6pm EDT Sep 22, 2026
 
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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