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

Coastal and Marine Hazards This Week

Coastal flooding, dangerous rip currents, high surf, and hazardous marine conditions are expected through this week. View this briefing for more details. Read More >

Hazardous Weather Conditions

Current conditions at

Andover, Aeroflex-Andover Airport (K12N)

Lat: 41.01°NLon: 74.74°WElev: 584ft.

47°F

8°C

Humidity 90%
Wind Speed Calm
Barometer 30.19 in (1022.4 mb)
Dewpoint 44°F (7°C)
Visibility NA
Last update 25 Sep 6:54 am EDT
Extended Forecast for

Lake Hopatcong NJ

Wind Advisory September 25, 06:00pm until September 27, 06:00am
Click here for hazard details and duration
Wind Advisory

  • Today

    Today: Partly sunny, with a high near 70. Northeast wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 70 °F

    Partly Sunny

  • Tonight

    Tonight: A chance of rain, mainly after midnight. Cloudy, with a low around 54. North wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 54 °F

    Chance Rain

  • Saturday

    Saturday: Rain. High near 60. Breezy, with a north wind around 20 mph, with gusts as high as 35 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 60 °F

    Rain and
    Breezy

  • Saturday Night

    Saturday Night: Rain. Low around 53. Breezy, with a north wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 53 °F

    Rain and
    Breezy

  • Sunday

    Sunday: Rain. High near 61. North wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 61 °F

    Rain

  • Sunday Night

    Sunday Night: Rain likely. Cloudy, with a low around 55. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 55 °F

    Rain Likely

  • Monday

    Monday: A chance of showers before 2pm. Mostly cloudy, with a high near 65. Chance of precipitation is 40%.

    High: 65 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 54.

    Low: 54 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 70.

    High: 70 °F

    Partly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 70. Northeast wind 10 to 15 mph, with gusts as high as 30 mph.
Tonight
A chance of rain, mainly after midnight. Cloudy, with a low around 54. North wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Rain. High near 60. Breezy, with a north wind around 20 mph, with gusts as high as 35 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Saturday Night
Rain. Low around 53. Breezy, with a north wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
Rain. High near 61. North wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
Rain likely. Cloudy, with a low around 55. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
A chance of showers before 2pm. Mostly cloudy, with a high near 65. Chance of precipitation is 40%.
Monday Night
Mostly cloudy, with a low around 54.
Tuesday
Partly sunny, with a high near 70.
Tuesday Night
Partly cloudy, with a low around 54.
Wednesday
Mostly sunny, with a high near 73.
Wednesday Night
Mostly cloudy, with a low around 56.
Thursday
Mostly sunny, with a high near 75.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lake Hopatcong NJ
 40.96°N 74.61°W (Elev. 984 ft)
Last Update:
4:10 am EDT Sep 25, 2026
Forecast Valid:
7am EDT Sep 25, 2026-6pm EDT Oct 1, 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