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

Excessive Rainfall and Tropical Storm in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce considerable, potentially life-threatening, flooding across the lower Mississippi River Valley and central Great Lakes region through tonight. Tropical Storm Arthur will move northeastward along the Texas coast today and then move inland over southwestern Louisiana by tonight. An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana. Read More >

Current conditions at

Somerville, Somerset Airport (KSMQ)

Lat: 40.62°NLon: 74.67°WElev: 105ft.

Mostly Cloudy

75°F

24°C

Humidity 58%
Wind Speed Vrbl 7 mph
Barometer 29.75 in (1007.2 mb)
Dewpoint 59°F (15°C)
Visibility 8.00 mi
Last update 17 Jun 6:53 pm EDT
Extended Forecast for

3 Miles E Califon NJ

  • Tonight

    Tonight: A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 9pm. Increasing clouds, with a low around 63. Southeast wind around 5 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 63 °F

    Chance
    Showers then
    Mostly Cloudy

  • Thursday

    Thursday: Showers and thunderstorms likely, mainly before 2pm. Cloudy through mid morning, then gradual clearing, with a high near 87. Breezy, with a south wind 10 to 20 mph becoming southwest in the afternoon. Winds could gust as high as 35 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 87 °F

    Showers
    Likely then
    Chance
    T-storms and
    Breezy

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 62. West wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 62 °F

    Increasing
    Clouds

  • Juneteenth

    Juneteenth: Mostly cloudy, then gradually becoming sunny, with a high near 80. West wind around 10 mph, with gusts as high as 25 mph.

    High: 80 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Clear, with a low around 57. West wind 5 to 10 mph.

    Low: 57 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Sunday Night

    Sunday Night: A chance of showers after 2am. Mostly cloudy, with a low around 59. Chance of precipitation is 50%.

    Low: 59 °F

    Partly Cloudy
    then Chance
    Showers

Detailed Forecast

Tonight
A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 9pm. Increasing clouds, with a low around 63. Southeast wind around 5 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers and thunderstorms likely, mainly before 2pm. Cloudy through mid morning, then gradual clearing, with a high near 87. Breezy, with a south wind 10 to 20 mph becoming southwest in the afternoon. Winds could gust as high as 35 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Increasing clouds, with a low around 62. West wind 10 to 15 mph, with gusts as high as 25 mph.
Juneteenth
Mostly cloudy, then gradually becoming sunny, with a high near 80. West wind around 10 mph, with gusts as high as 25 mph.
Friday Night
Clear, with a low around 57. West wind 5 to 10 mph.
Saturday
Sunny, with a high near 77.
Saturday Night
Mostly clear, with a low around 57.
Sunday
Sunny, with a high near 80.
Sunday Night
A chance of showers after 2am. Mostly cloudy, with a low around 59. Chance of precipitation is 50%.
Monday
Showers, mainly after 8am. High near 76. Chance of precipitation is 80%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 59. Chance of precipitation is 40%.
Tuesday
Mostly sunny, with a high near 80.
Tuesday Night
Mostly clear, with a low around 59.
Wednesday
Mostly sunny, with a high near 80.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles E Califon NJ
 40.74°N 74.77°W (Elev. 804 ft)
Last Update:
4:08 pm EDT Jun 17, 2026
Forecast Valid:
7pm EDT Jun 17, 2026-6pm EDT Jun 24, 2026
 
Forecast Discussion
 
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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