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.

A Few Clouds

45°F

7°C

Humidity 46%
Wind Speed Vrbl 3 mph
Barometer 30.23 in (1024.4 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 21 Apr 7:53 pm EDT
Extended Forecast for

Mahwah NJ

  • Tonight

    Tonight: A 40 percent chance of showers, mainly after 11pm. Increasing clouds, with a low around 41. South wind around 6 mph.

    Low: 41 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers before 11am. Mostly cloudy, with a high near 56. South wind 5 to 8 mph.

    High: 56 °F

    Chance
    Showers then
    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 43. Light and variable wind.

    Low: 43 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 70. Light northwest wind increasing to 5 to 9 mph in the morning. Winds could gust as high as 20 mph.

    High: 70 °F

    Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 45. Northwest wind around 6 mph becoming calm after midnight.

    Low: 45 °F

    Increasing
    Clouds

  • Friday

    Friday: Partly sunny, with a high near 61.

    High: 61 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: A 50 percent chance of showers. Mostly cloudy, with a high near 53.

    High: 53 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Chance
    Showers

Detailed Forecast

Tonight
A 40 percent chance of showers, mainly after 11pm. Increasing clouds, with a low around 41. South wind around 6 mph.
Wednesday
A 30 percent chance of showers before 11am. Mostly cloudy, with a high near 56. South wind 5 to 8 mph.
Wednesday Night
Partly cloudy, with a low around 43. Light and variable wind.
Thursday
Sunny, with a high near 70. Light northwest wind increasing to 5 to 9 mph in the morning. Winds could gust as high as 20 mph.
Thursday Night
Increasing clouds, with a low around 45. Northwest wind around 6 mph becoming calm after midnight.
Friday
Partly sunny, with a high near 61.
Friday Night
A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 41.
Saturday
A 50 percent chance of showers. Mostly cloudy, with a high near 53.
Saturday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 41.
Sunday
Partly sunny, with a high near 61.
Sunday Night
Mostly cloudy, with a low around 44.
Monday
Partly sunny, with a high near 63.
Monday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 46.
Tuesday
A 50 percent chance of showers. Partly sunny, with a high near 63.
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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:
3:50 pm EDT Apr 21, 2026
Forecast Valid:
8pm EDT Apr 21, 2026-6pm EDT Apr 28, 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