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

Caldwell, Essex County Airport (KCDW)

Lat: 40.88°NLon: 74.28°WElev: 171ft.

Partly Cloudy

83°F

28°C

Humidity 55%
Wind Speed NW 8 mph
Barometer 29.87 in (1011.7 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 18 Aug 5:53 pm EDT
Extended Forecast for

Mahwah NJ

  • Tonight

    Tonight: Mostly clear, with a low around 64. Calm wind.

    Low: 64 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 85. Light west wind.

    High: 85 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 66. Calm wind.

    Low: 66 °F

    Mostly Clear

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 82. Calm wind.

    High: 82 °F

    Mostly Sunny
    then Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 60. Calm wind. Chance of precipitation is 30%.

    Low: 60 °F

    Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

  • Saturday

    Saturday: A 40 percent chance of showers after 8am. Partly sunny, with a high near 79.

    High: 79 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Showers likely, mainly before 2am. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.

    Low: 63 °F

    Showers
    Likely

Detailed Forecast

Tonight
Mostly clear, with a low around 64. Calm wind.
Wednesday
Sunny, with a high near 85. Light west wind.
Wednesday Night
Mostly clear, with a low around 66. Calm wind.
Thursday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 82. Calm wind.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 60. Calm wind. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 82.
Friday Night
Partly cloudy, with a low around 62.
Saturday
A 40 percent chance of showers after 8am. Partly sunny, with a high near 79.
Saturday Night
Showers likely, mainly before 2am. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.
Sunday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 60%.
Sunday Night
Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 60. Chance of precipitation is 60%.
Monday
Sunny, with a high near 80.
Monday Night
Mostly clear, with a low around 60.
Tuesday
Sunny, with a high near 81.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mahwah NJ
 41.09°N 74.17°W (Elev. 299 ft)
Last Update:
2:34 pm EDT Aug 18, 2026
Forecast Valid:
6pm EDT Aug 18, 2026-6pm EDT Aug 25, 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