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.

Overcast

49°F

9°C

Humidity 50%
Wind Speed NW 8 mph
Barometer 29.98 in (1015.9 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 19 Apr 6:53 pm EDT
Extended Forecast for

Mahwah NJ

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

  • Tonight

    Tonight: A 20 percent chance of showers before 8pm. Areas of frost after 2am. Otherwise, mostly cloudy during the early evening, then becoming clear, with a low around 35. Northwest wind 8 to 13 mph becoming light and variable after midnight.

    Low: 35 °F

    Slight Chance
    Showers then
    Areas Frost

  • Monday

    Monday: A chance of rain and snow showers before 10am, then a chance of rain showers between 10am and 2pm. Partly sunny, with a high near 51. Light west wind becoming northwest 5 to 9 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 40%.

    High: 51 °F

    Chance
    Rain/Snow
    then Slight
    Chance
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 27. Northwest wind 5 to 8 mph.

    Low: 27 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 54. Wind chill values between 25 and 35 early. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 54 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers after 2am. Increasing clouds, with a low around 41. South wind around 6 mph.

    Low: 41 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers before 8am. Partly sunny, with a high near 62.

    High: 62 °F

    Chance
    Showers then
    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

  • 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

Tonight
A 20 percent chance of showers before 8pm. Areas of frost after 2am. Otherwise, mostly cloudy during the early evening, then becoming clear, with a low around 35. Northwest wind 8 to 13 mph becoming light and variable after midnight.
Monday
A chance of rain and snow showers before 10am, then a chance of rain showers between 10am and 2pm. Partly sunny, with a high near 51. Light west wind becoming northwest 5 to 9 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 40%.
Monday Night
Mostly clear, with a low around 27. Northwest wind 5 to 8 mph.
Tuesday
Sunny, with a high near 54. Wind chill values between 25 and 35 early. Calm wind becoming southwest around 5 mph in the afternoon.
Tuesday Night
A 30 percent chance of showers after 2am. Increasing clouds, with a low around 41. South wind around 6 mph.
Wednesday
A 30 percent chance of showers before 8am. Partly sunny, with a high near 62.
Wednesday Night
Mostly clear, 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 71.
Friday Night
A 40 percent chance of showers. Partly cloudy, with a low around 46.
Saturday
A 50 percent chance of showers. Partly sunny, with a high near 66.
Saturday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 46.
Sunday
A 40 percent chance of showers. Mostly cloudy, 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:
6:50 pm EDT Apr 19, 2026
Forecast Valid:
7pm EDT Apr 19, 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