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

Heavy Rainfall for Portions of the West and Central U.S.; Monitoring Fire Weather Conditions for New England

Tropical moisture continues to flow across portions of the Great Basin, desert Southwest and California. Isolated instances of flash flooding remains possible. Meanwhile, a storm and associated frontal boundary will focus showers and thunderstorms for the center of the nation. For New England, dry and breezy conditions could enhance favorable fire weather conditions. Read More >

Current conditions at

Somerville, Somerset Airport (KSMQ)

Lat: 40.62°NLon: 74.67°WElev: 105ft.

Fair

57°F

14°C

Humidity 93%
Wind Speed N 5 mph
Barometer 30.10 in (1019.2 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 20 Sep 12:53 am EDT
Extended Forecast for

Long Valley NJ

  • Overnight

    Overnight: Mostly clear, with a low around 52. North wind around 5 mph.

    Low: 52 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 74. Northeast wind around 5 mph.

    High: 74 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 51. Southeast wind around 5 mph becoming calm in the evening.

    Low: 51 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 71. Calm wind becoming east around 5 mph in the morning.

    High: 71 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 50. Calm wind.

    Low: 50 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 58.

    Low: 58 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 40%.

    High: 80 °F

    Partly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 60. Chance of precipitation is 40%.

    Low: 60 °F

    Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Overnight
Mostly clear, with a low around 52. North wind around 5 mph.
Saturday
Sunny, with a high near 74. Northeast wind around 5 mph.
Saturday Night
Partly cloudy, with a low around 51. Southeast wind around 5 mph becoming calm in the evening.
Sunday
Partly sunny, with a high near 71. Calm wind becoming east around 5 mph in the morning.
Sunday Night
Partly cloudy, with a low around 50. Calm wind.
Monday
Mostly sunny, with a high near 75.
Monday Night
Mostly cloudy, with a low around 58.
Tuesday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 40%.
Tuesday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 60. Chance of precipitation is 40%.
Wednesday
A chance of showers after 2pm. Partly sunny, with a high near 78. Chance of precipitation is 40%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 57. Chance of precipitation is 30%.
Thursday
Partly sunny, with a high near 72.
Thursday Night
Mostly cloudy, with a low around 56.
Friday
Partly sunny, with a high near 72.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Long Valley NJ
 40.78°N 74.76°W (Elev. 725 ft)
Last Update:
12:58 am EDT Sep 20, 2025
Forecast Valid:
1am EDT Sep 20, 2025-6pm EDT Sep 26, 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