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

79°F

26°C

Humidity 65%
Wind Speed N 5 mph
Barometer 30.02 in (1017.0 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 28 Aug 11:53 am EDT
Extended Forecast for

Mahwah NJ

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 83. Calm wind.

    High: 83 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Partly cloudy, with a low around 57. Light north wind.

    Low: 57 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 81. Light north wind.

    High: 81 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 59. Calm wind.

    Low: 59 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 84. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 84 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 66.

    Low: 66 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 84.

    High: 84 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 66.

    Low: 66 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 50%.

    High: 83 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 83. Calm wind.
Tonight
Partly cloudy, with a low around 57. Light north wind.
Saturday
Sunny, with a high near 81. Light north wind.
Saturday Night
Mostly clear, with a low around 59. Calm wind.
Sunday
Mostly sunny, with a high near 84. Calm wind becoming southwest around 6 mph in the afternoon.
Sunday Night
Mostly cloudy, with a low around 66.
Monday
Partly sunny, with a high near 84.
Monday Night
Mostly cloudy, with a low around 66.
Tuesday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 50%.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Chance of precipitation is 50%.
Wednesday
Showers likely. Mostly cloudy, with a high near 82. Chance of precipitation is 60%.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.
Thursday
Partly sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mahwah NJ
 41.09°N 74.17°W (Elev. 299 ft)
Last Update:
4:20 am EDT Aug 28, 2026
Forecast Valid:
12pm EDT Aug 28, 2026-6pm EDT Sep 3, 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