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

Hazardous Weather Conditions

Current conditions at

Mount Holly, South Jersey Regional Airport (KVAY)

Lat: 39.94°NLon: 74.84°WElev: 49ft.

Fog/Mist

49°F

9°C

Humidity 97%
Wind Speed SE 6 mph
Barometer 29.90 in (1012.4 mb)
Dewpoint 48°F (9°C)
Visibility 2.50 mi
Wind Chill46°F (8°C)
Last update 18 Apr 11:54 pm EDT
Extended Forecast for

3 Miles ESE Williamstown NJ

Freeze Watch April 21, 12:00am until April 21, 09:00am
Coastal Flood Advisory April 19, 01:00am until April 19, 06:00am
Click here for hazard details and duration
Freeze Watch
Coastal Flood Advisory

  • Overnight

    Overnight: A chance of showers, mainly after 5am. Areas of fog. Otherwise, mostly cloudy, with a low around 51. Southeast wind around 5 mph. Chance of precipitation is 30%.

    Low: 51 °F

    Chance
    Showers and
    Areas Fog

  • Sunday

    Sunday: Showers, mainly before 2pm. High near 58. Northwest wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 58 °F

    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 38. West wind around 5 mph becoming calm in the evening.

    Low: 38 °F

    Mostly Clear

  • Monday

    Monday: A slight chance of showers. Mostly sunny, with a high near 54. Northwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 54 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: Patchy frost after 1am. Otherwise, mostly clear, with a low around 31. North wind around 5 mph.

    Low: 31 °F

    Mostly Clear
    then Patchy
    Frost

  • Tuesday

    Tuesday: Areas of frost before 9am. Otherwise, sunny, with a high near 54.

    High: 54 °F

    Areas Frost
    then Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

  • Wednesday

    Wednesday: A chance of showers between 8am and 2pm. Partly sunny, with a high near 67. Chance of precipitation is 30%.

    High: 67 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

Detailed Forecast

Overnight
A chance of showers, mainly after 5am. Areas of fog. Otherwise, mostly cloudy, with a low around 51. Southeast wind around 5 mph. Chance of precipitation is 30%.
Sunday
Showers, mainly before 2pm. High near 58. Northwest wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Mostly clear, with a low around 38. West wind around 5 mph becoming calm in the evening.
Monday
A slight chance of showers. Mostly sunny, with a high near 54. Northwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Monday Night
Patchy frost after 1am. Otherwise, mostly clear, with a low around 31. North wind around 5 mph.
Tuesday
Areas of frost before 9am. Otherwise, sunny, with a high near 54.
Tuesday Night
Mostly clear, with a low around 39.
Wednesday
A chance of showers between 8am and 2pm. Partly sunny, with a high near 67. Chance of precipitation is 30%.
Wednesday Night
Partly cloudy, with a low around 44.
Thursday
Sunny, with a high near 73.
Thursday Night
Mostly clear, with a low around 49.
Friday
Mostly sunny, with a high near 75.
Friday Night
Partly cloudy, with a low around 51.
Saturday
A chance of showers. Partly sunny, with a high near 68. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ESE Williamstown NJ
 39.66°N 74.92°W (Elev. 98 ft)
Last Update:
4:11 pm EDT Apr 18, 2026
Forecast Valid:
12am EDT Apr 19, 2026-6pm EDT Apr 25, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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