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

Somerville, Somerset Airport (KSMQ)

Lat: 40.62°NLon: 74.67°WElev: 105ft.

Mostly Cloudy

76°F

24°C

Humidity 45%
Wind Speed Vrbl 7 G 21 mph
Barometer 29.84 in (1010.2 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 11 Mar 12:53 pm EDT
Extended Forecast for

Dunellen NJ

  • This Afternoon

    This Afternoon: A chance of showers before 3pm, then a chance of showers and thunderstorms between 3pm and 5pm, then a slight chance of showers after 5pm. Mostly cloudy, with a high near 77. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Chance
    Showers

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am. Mostly cloudy, with a low around 51. South wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 51 °F

    Chance
    T-storms then
    Showers
    Likely

  • Thursday

    Thursday: Rain showers likely before 5pm, then a slight chance of rain and snow showers. Cloudy, with a temperature falling to around 45 by 2pm. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 58 °F⇓

    Showers
    Likely and
    Breezy then
    Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 31. West wind 5 to 15 mph.

    Low: 31 °F

    Mostly Clear

  • Friday

    Friday: Partly sunny, with a high near 49. South wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 49 °F

    Partly Sunny

  • Friday Night

    Friday Night: A slight chance of showers before 2am. Partly cloudy, with a low around 38. Chance of precipitation is 20%.

    Low: 38 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: Sunny, with a high near 50.

    High: 50 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

  • Sunday

    Sunday: Cloudy, with a high near 52.

    High: 52 °F

    Cloudy

Detailed Forecast

This Afternoon
A chance of showers before 3pm, then a chance of showers and thunderstorms between 3pm and 5pm, then a slight chance of showers after 5pm. Mostly cloudy, with a high near 77. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am. Mostly cloudy, with a low around 51. South wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Rain showers likely before 5pm, then a slight chance of rain and snow showers. Cloudy, with a temperature falling to around 45 by 2pm. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Thursday Night
Mostly clear, with a low around 31. West wind 5 to 15 mph.
Friday
Partly sunny, with a high near 49. South wind 5 to 15 mph, with gusts as high as 25 mph.
Friday Night
A slight chance of showers before 2am. Partly cloudy, with a low around 38. Chance of precipitation is 20%.
Saturday
Sunny, with a high near 50.
Saturday Night
Mostly cloudy, with a low around 33.
Sunday
Cloudy, with a high near 52.
Sunday Night
Rain, mainly after 2am. Low around 44. Chance of precipitation is 90%.
Monday
Rain. High near 62. Chance of precipitation is 90%.
Monday Night
Rain and snow likely. Partly cloudy, with a low around 28. Chance of precipitation is 60%.
Tuesday
Mostly sunny, with a high near 38.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Dunellen NJ
 40.61°N 74.47°W (Elev. 220 ft)
Last Update:
4:09 am EDT Mar 11, 2026
Forecast Valid:
1pm EDT Mar 11, 2026-6pm EDT Mar 17, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation