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.

Fair

75°F

24°C

Humidity 74%
Wind Speed Calm
Barometer 30.01 in (1016.5 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 17 Aug 12:53 am EDT
Extended Forecast for

Mahwah NJ

  • Overnight

    Overnight: Partly cloudy, with a low around 68. Calm wind.

    Low: 68 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 92. Heat index values as high as 97. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 92 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. North wind 3 to 8 mph. Winds could gust as high as 21 mph. Chance of precipitation is 30%.

    Low: 62 °F

    Chance
    T-storms then
    Chance
    Showers

  • Monday

    Monday: Partly sunny, with a high near 75. North wind 6 to 8 mph, with gusts as high as 20 mph.

    High: 75 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 60. Calm wind.

    Low: 60 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 78.

    High: 78 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 62.

    Low: 62 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A 50 percent chance of showers. Mostly cloudy, with a high near 77.

    High: 77 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 61.

    Low: 61 °F

    Chance
    Showers

Detailed Forecast

Overnight
Partly cloudy, with a low around 68. Calm wind.
Sunday
Mostly sunny, with a high near 92. Heat index values as high as 97. Calm wind becoming west 5 to 7 mph in the afternoon.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. North wind 3 to 8 mph. Winds could gust as high as 21 mph. Chance of precipitation is 30%.
Monday
Partly sunny, with a high near 75. North wind 6 to 8 mph, with gusts as high as 20 mph.
Monday Night
Mostly cloudy, with a low around 60. Calm wind.
Tuesday
Partly sunny, with a high near 78.
Tuesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 62.
Wednesday
A 50 percent chance of showers. Mostly cloudy, with a high near 77.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 61.
Thursday
Mostly sunny, with a high near 78.
Thursday Night
Partly cloudy, with a low around 58.
Friday
Sunny, with a high near 84.
Friday Night
Mostly clear, with a low around 61.
Saturday
Mostly sunny, with a high near 85.
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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:
4:01 pm EDT Aug 16, 2025
Forecast Valid:
1am EDT Aug 17, 2025-6pm EDT Aug 23, 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