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

43°F

6°C

Humidity 47%
Wind Speed NA
Barometer 30.08 in (1018.8 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Last update 24 Dec 8:53 am EST
Extended Forecast for

Long Valley NJ

  • Today

    Today: Sunny, with a high near 40. Northwest wind 10 to 15 mph, with gusts as high as 35 mph.

    High: 40 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 24. Calm wind.

    Low: 24 °F

    Increasing
    Clouds

  • Christmas Day

    Christmas Day: A slight chance of snow before 10am, then a slight chance of rain between 10am and 1pm. Mostly cloudy, with a high near 42. Southwest wind around 5 mph becoming northwest in the afternoon. Chance of precipitation is 20%.

    High: 42 °F

    Slight Chance
    Rain/Snow
    then Slight
    Chance Rain

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 18. North wind around 5 mph.

    Low: 18 °F

    Mostly Cloudy

  • Friday

    Friday: Snow likely after 1pm. Mostly cloudy, with a high near 28. North wind around 5 mph becoming east in the afternoon. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

    High: 28 °F

    Mostly Cloudy
    then Snow
    Likely

  • Friday Night

    Friday Night: Snow. Low around 21. Chance of precipitation is 100%.

    Low: 21 °F

    Snow

  • Saturday

    Saturday: Snow likely, mainly before 1pm. Cloudy, with a high near 32. Chance of precipitation is 60%.

    High: 32 °F

    Snow Likely

  • Saturday Night

    Saturday Night: Cloudy, with a low around 25.

    Low: 25 °F

    Cloudy

  • Sunday

    Sunday: Rain likely, mainly after 1pm. Cloudy, with a high near 39. Chance of precipitation is 70%.

    High: 39 °F

    Chance Rain
    then Rain
    Likely

Detailed Forecast

Today
Sunny, with a high near 40. Northwest wind 10 to 15 mph, with gusts as high as 35 mph.
Tonight
Increasing clouds, with a low around 24. Calm wind.
Christmas Day
A slight chance of snow before 10am, then a slight chance of rain between 10am and 1pm. Mostly cloudy, with a high near 42. Southwest wind around 5 mph becoming northwest in the afternoon. Chance of precipitation is 20%.
Thursday Night
Mostly cloudy, with a low around 18. North wind around 5 mph.
Friday
Snow likely after 1pm. Mostly cloudy, with a high near 28. North wind around 5 mph becoming east in the afternoon. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.
Friday Night
Snow. Low around 21. Chance of precipitation is 100%.
Saturday
Snow likely, mainly before 1pm. Cloudy, with a high near 32. Chance of precipitation is 60%.
Saturday Night
Cloudy, with a low around 25.
Sunday
Rain likely, mainly after 1pm. Cloudy, with a high near 39. Chance of precipitation is 70%.
Sunday Night
Rain likely, mainly before 1am. Cloudy, with a low around 26. Chance of precipitation is 70%.
Monday
A chance of rain. Partly sunny, with a high near 34. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 17.
Tuesday
Partly sunny, with a high near 27.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Long Valley NJ
 40.78°N 74.76°W (Elev. 725 ft)
Last Update:
4:14 am EST Dec 24, 2025
Forecast Valid:
9am EST Dec 24, 2025-6pm EST Dec 30, 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