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

Extreme Heat and Excessive Rainfall This Week

A significant heat wave continues for the Rockies, Northern Plains, and Great Lakes into the Mid-Atlantic, peaking in intensity through midweek and lingering across parts of the Northern Plains and Midwest until this weekend. Excessive rainfall my bring life-threatening and locally catastrophic flash and urban flooding across portions of southwestern Texas through early Friday. Read More >

Hazardous Weather Conditions

Current conditions at

Andover, Aeroflex-Andover Airport (K12N)

Lat: 41.01°NLon: 74.74°WElev: 584ft.

76°F

24°C

Humidity 77%
Wind Speed Calm
Barometer 29.93 in (1012.6 mb)
Dewpoint 68°F (20°C)
Visibility NA
Heat Index77°F (25°C)
Last update 14 Jul 11:54 pm EDT
Extended Forecast for

Hopatcong NJSimilar City Names

Heat Advisory July 15, 10:00am until July 15, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Overnight

    Overnight: Mostly clear, with a low around 73. West wind around 5 mph.

    Low: 73 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 95. West wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 95 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 68. North wind around 5 mph becoming calm.

    Low: 68 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 89. Calm wind becoming west around 5 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 89 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 65. Northwest wind around 5 mph becoming calm.

    Low: 65 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of showers after 2am. Partly cloudy, with a low around 63. Chance of precipitation is 40%.

    Low: 63 °F

    Partly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 79. Chance of precipitation is 70%.

    High: 79 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.

    Low: 65 °F

    Showers
    Likely

Detailed Forecast

Overnight
Mostly clear, with a low around 73. West wind around 5 mph.
Wednesday
Mostly sunny, with a high near 95. West wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly cloudy, with a low around 68. North wind around 5 mph becoming calm.
Thursday
Partly sunny, with a high near 89. Calm wind becoming west around 5 mph in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
Mostly clear, with a low around 65. Northwest wind around 5 mph becoming calm.
Friday
Mostly sunny, with a high near 86.
Friday Night
A chance of showers after 2am. Partly cloudy, with a low around 63. Chance of precipitation is 40%.
Saturday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 79. Chance of precipitation is 70%.
Saturday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.
Sunday
A chance of showers. Mostly cloudy, with a high near 83. Chance of precipitation is 50%.
Sunday Night
Partly cloudy, with a low around 64.
Monday
Mostly sunny, with a high near 84.
Monday Night
A chance of showers. Mostly cloudy, with a low around 66. Chance of precipitation is 40%.
Tuesday
A chance of showers. Partly sunny, with a high near 84. Chance of precipitation is 50%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Hopatcong NJSimilar City Names
 40.97°N 74.67°W (Elev. 1030 ft)
Last Update:
5:58 pm EDT Jul 14, 2026
Forecast Valid:
12am EDT Jul 15, 2026-6pm EDT Jul 21, 2026
 
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Additional Resources

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National Digital Forecast Database

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High Temperature

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Chance of Precipitation