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

49°F

9°C

Humidity 64%
Wind Speed S 6 mph
Barometer 30.33 in (1027.6 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 12 Apr 10:53 pm EDT
Extended Forecast for

Mahwah NJ

  • Tonight

    Tonight: Mostly cloudy, with a low around 46. South wind around 6 mph.

    Low: 46 °F

    Mostly Cloudy

  • Monday

    Monday: A 20 percent chance of showers after 2pm. Partly sunny, with a high near 77. Southwest wind 7 to 10 mph, with gusts as high as 24 mph.

    High: 77 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 57. West wind 3 to 8 mph. Winds could gust as high as 20 mph.

    Low: 57 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 84. Calm wind becoming southwest 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 84 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers before 2am. Mostly cloudy, with a low around 62. Southwest wind around 6 mph becoming calm after midnight.

    Low: 62 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers between 8pm and 2am. Mostly cloudy, with a low around 64. Chance of precipitation is 40%.

    Low: 64 °F

    Chance
    Showers

  • Thursday

    Thursday: Partly sunny, with a high near 85.

    High: 85 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 62.

    Low: 62 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 46. South wind around 6 mph.
Monday
A 20 percent chance of showers after 2pm. Partly sunny, with a high near 77. Southwest wind 7 to 10 mph, with gusts as high as 24 mph.
Monday Night
Partly cloudy, with a low around 57. West wind 3 to 8 mph. Winds could gust as high as 20 mph.
Tuesday
Mostly sunny, with a high near 84. Calm wind becoming southwest 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
A 20 percent chance of showers before 2am. Mostly cloudy, with a low around 62. Southwest wind around 6 mph becoming calm after midnight.
Wednesday
Mostly sunny, with a high near 87.
Wednesday Night
A chance of showers between 8pm and 2am. Mostly cloudy, with a low around 64. Chance of precipitation is 40%.
Thursday
Partly sunny, with a high near 85.
Thursday Night
Mostly cloudy, with a low around 62.
Friday
Mostly sunny, with a high near 81.
Friday Night
Partly cloudy, with a low around 57.
Saturday
Mostly sunny, with a high near 80.
Saturday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 56.
Sunday
A 30 percent chance of showers. Partly sunny, with a high near 77.
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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:
7:02 pm EDT Apr 12, 2026
Forecast Valid:
11pm EDT Apr 12, 2026-6pm EDT Apr 19, 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