Severe Weather and Heavy Rain for the Plains and Mid-Atlantic; Building Heat in the West

Severe thunderstorms will remain possible in the Mid-Atlantic through Tuesday. Severe thunderstorms and heavy rain will also be possible in the central/southern Plains on Tuesday and Wednesday. Hazardous heat will linger across the southern U.S. and build across the West through mid-week. Hot and dry weather will create Elevated to Critical fire weather conditions in the Four Corners Region. Read More >

Hazardous Weather Conditions

Current conditions at

Somerville, Somerset Airport (KSMQ)

Lat: 40.62°NLon: 74.67°WElev: 105ft.

Fog/Mist

69°F

21°C

Humidity 96%
Wind Speed Calm
Barometer 29.83 in (1009.9 mb)
Dewpoint 68°F (20°C)
Visibility 2.00 mi
Last update 23 Jun 1:53 am EDT
Extended Forecast for

Millstone NJ

Flood Watch June 23, 02:13am until June 23, 06:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch June 23, 02:13am until June 23, 06:00am

    NOW until 6:00am Tue

    Flood Watch

  • Overnight

    Low: 66 °F

    Showers

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm.  High near 74. North wind 5 to 10 mph.  Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 74 °F

    Showers
    Likely then
    Showers

  • Tuesday Night

    Tuesday Night: Showers likely, mainly before 10pm.  Cloudy during the early evening, then gradual clearing, with a low around 58. North wind around 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 58 °F

    Showers
    Likely then
    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 85. Northwest wind 10 to 15 mph.

    High: 85 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 60. West wind 5 to 10 mph.

    Low: 60 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 62. Chance of precipitation is 50%.

    Low: 62 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 2pm.  Partly sunny, with a high near 86. Chance of precipitation is 50%.

    High: 86 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Overnight
Showers and possibly a thunderstorm. Low around 66. South wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
Showers and possibly a thunderstorm. High near 74. North wind 5 to 10 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
Showers likely, mainly before 10pm. Cloudy during the early evening, then gradual clearing, with a low around 58. North wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Sunny, with a high near 85. Northwest wind 10 to 15 mph.
Wednesday Night
Mostly clear, with a low around 60. West wind 5 to 10 mph.
Thursday
Mostly sunny, with a high near 88.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 50%.
Friday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 86. Chance of precipitation is 50%.
Friday Night
A chance of showers and thunderstorms, then showers likely after 2am. Mostly cloudy, with a low around 64. Chance of precipitation is 70%.
Saturday
Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 80. Chance of precipitation is 70%.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 64. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 87.
Sunday Night
Partly cloudy, with a low around 65.
Monday
Mostly sunny, with a high near 88.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Millstone NJ
 40.49°N 74.58°W (Elev. 69 ft)
2:10 am EDT Jun 23, 2026
2am EDT Jun 23, 2026-6pm EDT Jun 29, 2026
 
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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