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.

Fair

33°F

1°C

Humidity 92%
Wind Speed Calm
Barometer 30.13 in (1021.0 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Last update 20 Apr 6:53 am EDT
Extended Forecast for

Mahwah NJ

Frost Advisory April 20, 07:08am until April 20, 08:00am
Freeze Warning April 21, 12:00am until April 21, 09:00am
Click here for hazard details and duration
...
Freeze Warning
  •  
    Frost Advisory April 20, 07:08am until April 20, 08:00am

    NOW until 8:00am Mon

    Frost Advisory

  • Today

    High: 51 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 27. Northwest wind 5 to 7 mph.

    Low: 27 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 55. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 55 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers, mainly after 2am. Increasing clouds, with a low around 40. South wind around 5 mph.

    Low: 40 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers, mainly before 8am. Mostly cloudy, with a high near 63. South wind 3 to 6 mph.

    High: 63 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

Detailed Forecast

Today
A 20 percent chance of showers before 10am. Mostly sunny, with a high near 51. Calm wind becoming northwest 5 to 9 mph in the morning.
Tonight
Mostly clear, with a low around 27. Northwest wind 5 to 7 mph.
Tuesday
Sunny, with a high near 55. Calm wind becoming southwest around 6 mph in the afternoon.
Tuesday Night
A 30 percent chance of showers, mainly after 2am. Increasing clouds, with a low around 40. South wind around 5 mph.
Wednesday
A 30 percent chance of showers, mainly before 8am. Mostly cloudy, with a high near 63. South wind 3 to 6 mph.
Wednesday Night
Partly cloudy, with a low around 43.
Thursday
Mostly sunny, with a high near 70.
Thursday Night
Partly cloudy, with a low around 46.
Friday
Mostly sunny, with a high near 67.
Friday Night
A 30 percent chance of showers after 2am. Partly cloudy, with a low around 45.
Saturday
A 40 percent chance of showers. Partly sunny, with a high near 61.
Saturday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 44.
Sunday
A 40 percent chance of showers. Mostly cloudy, with a high near 60.
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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:
6:13 am EDT Apr 20, 2026
Forecast Valid:
7am EDT Apr 20, 2026-6pm EDT Apr 26, 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