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

16°F

-9°C

Humidity 45%
Wind Speed Calm
Barometer 30.43 in (1031.2 mb)
Dewpoint -2°F (-19°C)
Visibility 10.00 mi
Last update 20 Jan 6:53 pm EST
Extended Forecast for

Mahwah NJ

  • Tonight

    Tonight: Mostly clear, with a low around 6. Light southwest wind.

    Low: 6 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 20 percent chance of snow after 4pm. Increasing clouds, with a high near 28. Wind chill values between 5 and 15. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 28 °F

    Sunny then
    Slight Chance
    Snow

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 24. South wind around 6 mph.

    Low: 24 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 41. Wind chill values between 20 and 30. Southwest wind 6 to 10 mph, with gusts as high as 23 mph.

    High: 41 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 21. West wind 3 to 6 mph.

    Low: 21 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 29.

    High: 29 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 7.

    Low: 7 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny and cold, with a high near 16.

    High: 16 °F

    Cold

  • Saturday Night

    Saturday Night: A 40 percent chance of snow after 1am. Mostly cloudy, with a low around 8.

    Low: 8 °F

    Mostly Cloudy
    then Chance
    Snow

Detailed Forecast

Tonight
Mostly clear, with a low around 6. Light southwest wind.
Wednesday
A 20 percent chance of snow after 4pm. Increasing clouds, with a high near 28. Wind chill values between 5 and 15. Calm wind becoming south 5 to 7 mph in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 24. South wind around 6 mph.
Thursday
Mostly sunny, with a high near 41. Wind chill values between 20 and 30. Southwest wind 6 to 10 mph, with gusts as high as 23 mph.
Thursday Night
Mostly cloudy, with a low around 21. West wind 3 to 6 mph.
Friday
Partly sunny, with a high near 29.
Friday Night
Partly cloudy, with a low around 7.
Saturday
Partly sunny and cold, with a high near 16.
Saturday Night
A 40 percent chance of snow after 1am. Mostly cloudy, with a low around 8.
Sunday
A 50 percent chance of snow. Cloudy and cold, with a high near 17.
Sunday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 8.
Monday
A 30 percent chance of snow. Partly sunny, with a high near 23.
Monday Night
Partly cloudy, with a low around 10.
Tuesday
Mostly sunny, with a high near 25.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mahwah NJ
 41.09°N 74.17°W (Elev. 299 ft)
Last Update:
6:01 pm EST Jan 20, 2026
Forecast Valid:
7pm EST Jan 20, 2026-6pm EST Jan 27, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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