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

Flooding Threat Along the Gulf Coast, Southern Rockies and High Plains; Cooler Weather in the Central and Eastern U.S.

Strong thunderstorms may bring excessive rainfall and flooding over parts of the northern Gulf Coast today and over parts of the southern Rockies into the High Plains today through the weekend. A refreshingly cool and dry air mass will continue to produce below average temperatures across the central and eastern U.S. through the weekend. Read More >

Current conditions at

Somerville, Somerset Airport (KSMQ)

Lat: 40.62°NLon: 74.67°WElev: 105ft.

Mostly Cloudy

65°F

18°C

Humidity 78%
Wind Speed Calm
Barometer 29.98 in (1015.0 mb)
Dewpoint 58°F (14°C)
Visibility 9.00 mi
Last update 29 Aug 8:53 am EDT
Extended Forecast for

Raritan NJ

  • Today

    Today: A slight chance of showers after 1pm. Mostly sunny, with a high near 78. West wind 5 to 15 mph. Chance of precipitation is 20%.

    High: 78 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Tonight

    Tonight: Mostly clear, with a low around 49. Northwest wind 5 to 10 mph.

    Low: 49 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 76. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 76 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 51. Calm wind.

    Low: 51 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 80. Calm wind.

    High: 80 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 53.

    Low: 53 °F

    Partly Cloudy

  • Labor Day

    Labor Day: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

Detailed Forecast

Today
A slight chance of showers after 1pm. Mostly sunny, with a high near 78. West wind 5 to 15 mph. Chance of precipitation is 20%.
Tonight
Mostly clear, with a low around 49. Northwest wind 5 to 10 mph.
Saturday
Sunny, with a high near 76. Calm wind becoming northwest around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 51. Calm wind.
Sunday
Sunny, with a high near 80. Calm wind.
Sunday Night
Partly cloudy, with a low around 53.
Labor Day
Mostly sunny, with a high near 80.
Monday Night
Partly cloudy, with a low around 54.
Tuesday
Sunny, with a high near 80.
Tuesday Night
Partly cloudy, with a low around 54.
Wednesday
Mostly sunny, with a high near 81.
Wednesday Night
Partly cloudy, with a low around 57.
Thursday
A chance of showers. Partly sunny, with a high near 80. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Raritan NJ
 40.59°N 74.65°W (Elev. 138 ft)
Last Update:
4:09 am EDT Aug 29, 2025
Forecast Valid:
9am EDT Aug 29, 2025-6pm EDT Sep 4, 2025
 
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