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

Hazardous Weather Conditions

Current conditions at

Caldwell, Essex County Airport (KCDW)

Lat: 40.88°NLon: 74.28°WElev: 171ft.

Fog/Mist

27°F

-3°C

Humidity 96%
Wind Speed Calm
Barometer 30.13 in (1020.9 mb)
Dewpoint 26°F (-3°C)
Visibility 4.00 mi
Last update 17 Jan 9:53 pm EST
Extended Forecast for

Mahwah NJ

Winter Weather Advisory January 18, 07:00am until January 18, 08:00pm
Click here for hazard details and duration
Winter Weather Advisory

  • Tonight

    Tonight: A 40 percent chance of snow, mainly after 4am. Cloudy, with a low around 28. Calm wind.

    Low: 28 °F

    Mostly Cloudy
    then Chance
    Snow

  • Sunday

    Sunday: Periods of snow, mainly after 7am. High near 32. Light and variable wind. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    High: 32 °F

    Snow

  • Sunday Night

    Sunday Night: A 20 percent chance of snow before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 20. Calm wind.

    Low: 20 °F

    Slight Chance
    Snow

  • M.L.King Day

    M.L.King Day: Mostly sunny, with a high near 31. Wind chill values between 15 and 25. Light southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 22 mph.

    High: 31 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 13. West wind around 7 mph, with gusts as high as 20 mph.

    Low: 13 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 22.

    High: 22 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 9.

    Low: 9 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 31.

    High: 31 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 23.

    Low: 23 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A 40 percent chance of snow, mainly after 4am. Cloudy, with a low around 28. Calm wind.
Sunday
Periods of snow, mainly after 7am. High near 32. Light and variable wind. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Sunday Night
A 20 percent chance of snow before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 20. Calm wind.
M.L.King Day
Mostly sunny, with a high near 31. Wind chill values between 15 and 25. Light southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 22 mph.
Monday Night
Partly cloudy, with a low around 13. West wind around 7 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 22.
Tuesday Night
Mostly clear, with a low around 9.
Wednesday
Mostly sunny, with a high near 31.
Wednesday Night
Mostly cloudy, with a low around 23.
Thursday
Partly sunny, with a high near 35.
Thursday Night
Partly cloudy, with a low around 16.
Friday
Mostly sunny, with a high near 29.
Friday Night
Mostly cloudy, with a low around 19.
Saturday
Partly sunny, with a high near 30.
Basemap Options
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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:
5:41 pm EST Jan 17, 2026
Forecast Valid:
10pm EST Jan 17, 2026-6pm EST Jan 24, 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