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

Hazardous Weather Conditions

Current conditions at

Andover, Aeroflex-Andover Airport (K12N)

Lat: 41.01°NLon: 74.74°WElev: 584ft.

25°C

77°F

Humidity 77%
Wind Speed Calm
Barometer 1017.3 mb (30.07 in)
Dewpoint 21°C (69°F)
Visibility NA
Heat Index26°C (79°F)
Last update 12 Jul 8:54 pm EDT
Extended Forecast for

Lake Hopatcong NJ

  • Tonight

    Tonight: Patchy fog after 1am. Otherwise, increasing clouds, with a low around 20. Calm wind.

    Low: 20 °C

    Mostly Cloudy
    then Patchy
    Fog

  • Sunday

    Sunday: A chance of showers and thunderstorms, mainly after 5pm. Areas of fog before 9am. Otherwise, partly sunny, with a high near 29. Southeast wind 5 to 10 km/h. Chance of precipitation is 30%.

    High: 29 °C

    Areas Fog
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 2am, then a chance of showers between 2am and 5am, then a chance of showers and thunderstorms after 5am. Increasing clouds, with a low around 21. Calm wind. Chance of precipitation is 50%. New rainfall amounts of less than 1 mm, except higher amounts possible in thunderstorms.

    Low: 21 °C

    Chance
    T-storms then
    Chance
    Showers

  • Monday

    Monday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 28. Calm wind. Chance of precipitation is 80%. New rainfall amounts between 2.5 and 5 mm possible.

    High: 28 °C

    Chance
    Showers then
    Showers

  • Monday Night

    Monday Night: Showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Low around 19. Calm wind. Chance of precipitation is 80%. New precipitation amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.

    Low: 19 °C

    Showers then
    Slight Chance
    Showers

  • Tuesday

    Tuesday: Sunny, with a high near 32.

    High: 32 °C

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 21.

    Low: 21 °C

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 31. Chance of precipitation is 30%.

    High: 31 °C

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 23. Chance of precipitation is 30%.

    Low: 23 °C

    Chance
    T-storms then
    Mostly Cloudy

Detailed Forecast

Tonight
Patchy fog after 1am. Otherwise, increasing clouds, with a low around 20. Calm wind.
Sunday
A chance of showers and thunderstorms, mainly after 5pm. Areas of fog before 9am. Otherwise, partly sunny, with a high near 29. Southeast wind 5 to 10 km/h. Chance of precipitation is 30%.
Sunday Night
A chance of showers and thunderstorms before 2am, then a chance of showers between 2am and 5am, then a chance of showers and thunderstorms after 5am. Increasing clouds, with a low around 21. Calm wind. Chance of precipitation is 50%. New rainfall amounts of less than 1 mm, except higher amounts possible in thunderstorms.
Monday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 28. Calm wind. Chance of precipitation is 80%. New rainfall amounts between 2.5 and 5 mm possible.
Monday Night
Showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Low around 19. Calm wind. Chance of precipitation is 80%. New precipitation amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.
Tuesday
Sunny, with a high near 32.
Tuesday Night
Partly cloudy, with a low around 21.
Wednesday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 31. Chance of precipitation is 30%.
Wednesday Night
A chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 23. Chance of precipitation is 30%.
Thursday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 31. Chance of precipitation is 50%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 22. Chance of precipitation is 30%.
Friday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 31. Chance of precipitation is 60%.
Friday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 21. Chance of precipitation is 60%.
Saturday
A chance of showers. Partly sunny, with a high near 29. Chance of precipitation is 40%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lake Hopatcong NJ
 40.96°N 74.61°W (Elev. 984 m)
Last Update:
4:12 pm EDT Jul 12, 2025
Forecast Valid:
9pm EDT Jul 12, 2025-6pm EDT Jul 19, 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