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

Hazardous Weather Conditions

Current conditions at

Somerville, Somerset Airport (KSMQ)

Lat: 40.62°NLon: 74.67°WElev: 105ft.

Fog/Mist

32°F

0°C

Humidity 96%
Wind Speed Calm
Barometer 29.93 in (1013.8 mb)
Dewpoint 31°F (-1°C)
Visibility 0.75 mi
Last update 18 Feb 7:53 am EST
Extended Forecast for

Long Valley NJ

Dense Fog Advisory February 18, 08:18am until February 18, 10:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory February 18, 08:18am until February 18, 10:00am

    NOW until 10:00am Wed

    Dense Fog Advisory

  • Today

    High: 42 °F

    Chance Rain
    and Dense Fog
    then Rain and
    Patchy Fog

  • Tonight

    Tonight: Rain, mainly before 9pm. Patchy fog. Low around 32. Calm wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 32 °F

    Rain and
    Patchy Fog
    then Patchy
    Fog

  • Thursday

    Thursday: A chance of rain after 1pm. Patchy fog before 10am. Otherwise, cloudy, with a high near 39. Calm wind becoming east around 5 mph. Chance of precipitation is 30%.

    High: 39 °F

    Patchy Fog
    then Chance
    Rain

  • Thursday Night

    Thursday Night: Rain likely, mainly after 1am. Cloudy, with a low around 32. Calm wind becoming east around 5 mph after midnight. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 32 °F

    Chance Rain
    then Rain
    Likely

  • Friday

    Friday: Rain before 10am, then rain, possibly mixed with snow between 10am and 1pm, then rain after 1pm. High near 39. East wind around 5 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

    High: 39 °F

    Rain/Snow

  • Friday Night

    Friday Night: A chance of rain, mixing with snow after 10pm, then gradually ending. Mostly cloudy, with a low around 33. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 33 °F

    Chance
    Rain/Snow

  • Saturday

    Saturday: Mostly sunny, with a high near 45.

    High: 45 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of snow after 1am. Mostly cloudy, with a low around 29. Chance of precipitation is 30%.

    Low: 29 °F

    Partly Cloudy
    then Chance
    Snow

Detailed Forecast

Today
Rain, mainly after 3pm. Widespread dense fog, mainly before 10am. High near 42. Calm wind. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Rain, mainly before 9pm. Patchy fog. Low around 32. Calm wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
A chance of rain after 1pm. Patchy fog before 10am. Otherwise, cloudy, with a high near 39. Calm wind becoming east around 5 mph. Chance of precipitation is 30%.
Thursday Night
Rain likely, mainly after 1am. Cloudy, with a low around 32. Calm wind becoming east around 5 mph after midnight. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Rain before 10am, then rain, possibly mixed with snow between 10am and 1pm, then rain after 1pm. High near 39. East wind around 5 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Friday Night
A chance of rain, mixing with snow after 10pm, then gradually ending. Mostly cloudy, with a low around 33. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Mostly sunny, with a high near 45.
Saturday Night
A chance of snow after 1am. Mostly cloudy, with a low around 29. Chance of precipitation is 30%.
Sunday
Snow likely, mainly after 1pm. Mostly cloudy, with a high near 35. Chance of precipitation is 60%.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 26. Chance of precipitation is 50%.
Monday
A chance of snow. Mostly cloudy, with a high near 36. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 18.
Tuesday
Mostly sunny, with a high near 30.
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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:
7:34 am EST Feb 18, 2026
Forecast Valid:
8am EST Feb 18, 2026-6pm EST Feb 24, 2026
 
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