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

Showers and Thunderstorms in the Southwest and Ohio Valley; Mountain Snow in the Northeast

Showers and thunderstorms, along with high-elevation snow, will begin to develop over parts of the Southwest late tonight and is expected to continue through Wednesday morning. Mountain snow over parts the Northeast will continue through Tuesday. A few strong to severe storms and heavy rainfall are possible across portions of the Lower Ohio Valley Tuesday. Read More >

Current conditions at

Somerville, Somerset Airport (KSMQ)

Lat: 40.62°NLon: 74.67°WElev: 105ft.

A Few Clouds

38°F

3°C

Humidity 55%
Wind Speed NW 6 mph
Barometer 30.04 in (1017.3 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 18 Nov 1:53 am EST
Extended Forecast for

Dunellen NJ

  • Overnight

    Overnight: Mostly clear, with a low around 30. West wind around 5 mph.

    Low: 30 °F

    Mostly Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 47. West wind 5 to 10 mph.

    High: 47 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A chance of rain, mainly after midnight. Cloudy, with a low around 35. West wind around 5 mph becoming calm. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 35 °F

    Slight Chance
    Rain then
    Chance Rain

  • Wednesday

    Wednesday: Cloudy, then gradually becoming mostly sunny, with a high near 50. Calm wind.

    High: 50 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 34. Calm wind.

    Low: 34 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 49.

    High: 49 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A chance of rain after 1am. Cloudy, with a low around 41. Chance of precipitation is 30%.

    Low: 41 °F

    Cloudy then
    Chance Rain

  • Friday

    Friday: A chance of rain. Mostly cloudy, with a high near 57. Chance of precipitation is 40%.

    High: 57 °F

    Chance Rain

  • Friday Night

    Friday Night: A chance of rain. Mostly cloudy, with a low around 40. Chance of precipitation is 40%.

    Low: 40 °F

    Chance Rain

Detailed Forecast

Overnight
Mostly clear, with a low around 30. West wind around 5 mph.
Tuesday
Increasing clouds, with a high near 47. West wind 5 to 10 mph.
Tuesday Night
A chance of rain, mainly after midnight. Cloudy, with a low around 35. West wind around 5 mph becoming calm. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Cloudy, then gradually becoming mostly sunny, with a high near 50. Calm wind.
Wednesday Night
Mostly cloudy, with a low around 34. Calm wind.
Thursday
Mostly cloudy, with a high near 49.
Thursday Night
A chance of rain after 1am. Cloudy, with a low around 41. Chance of precipitation is 30%.
Friday
A chance of rain. Mostly cloudy, with a high near 57. Chance of precipitation is 40%.
Friday Night
A chance of rain. Mostly cloudy, with a low around 40. Chance of precipitation is 40%.
Saturday
A chance of rain before 1pm. Partly sunny, with a high near 51. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 33.
Sunday
Mostly sunny, with a high near 52.
Sunday Night
Partly cloudy, with a low around 34.
Monday
Mostly sunny, with a high near 54.
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ABOUT THIS FORECAST

 
Point Forecast:
Dunellen NJ
 40.59°N 74.48°W (Elev. 72 ft)
Last Update:
2:16 am EST Nov 18, 2025
Forecast Valid:
2am EST Nov 18, 2025-6pm EST Nov 24, 2025
 
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Additional Resources

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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