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

60°F

16°C

Humidity 67%
Wind Speed S 12 G 20 mph
Barometer 29.96 in (1015.1 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 18 Apr 5:53 pm EDT
Extended Forecast for

Mahwah NJ

  • Tonight

    Tonight: Showers likely, mainly after 5am. Patchy fog after 2am. Otherwise, increasing clouds, with a low around 47. Southeast wind 5 to 8 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.

    Low: 47 °F

    Mostly Cloudy
    then Showers
    Likely and
    Patchy Fog

  • Sunday

    Sunday: Showers, mainly before 2pm. Patchy fog before 8am. High near 56. Light northwest wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 28 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 56 °F

    Showers and
    Patchy Fog

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 36. Northwest wind around 6 mph becoming calm in the evening.

    Low: 36 °F

    Mostly Clear

  • Monday

    Monday: A slight chance of rain and snow showers before 11am, then a slight chance of rain showers. Mostly sunny, with a high near 50. Northwest wind 8 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

    High: 50 °F

    Slight Chance
    Rain/Snow
    then Slight
    Chance
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 29. Northwest wind 5 to 7 mph, with gusts as high as 21 mph.

    Low: 29 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 54.

    High: 54 °F

    Sunny

  • Tuesday Night

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

    Low: 40 °F

    Partly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers before 8am. Mostly cloudy, with a high near 64.

    High: 64 °F

    Chance
    Showers then
    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

Detailed Forecast

Tonight
Showers likely, mainly after 5am. Patchy fog after 2am. Otherwise, increasing clouds, with a low around 47. Southeast wind 5 to 8 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.
Sunday
Showers, mainly before 2pm. Patchy fog before 8am. High near 56. Light northwest wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 28 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Mostly clear, with a low around 36. Northwest wind around 6 mph becoming calm in the evening.
Monday
A slight chance of rain and snow showers before 11am, then a slight chance of rain showers. Mostly sunny, with a high near 50. Northwest wind 8 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Monday Night
Mostly clear, with a low around 29. Northwest wind 5 to 7 mph, with gusts as high as 21 mph.
Tuesday
Sunny, with a high near 54.
Tuesday Night
A 30 percent chance of showers after 2am. Increasing clouds, with a low around 40.
Wednesday
A 30 percent chance of showers before 8am. Mostly cloudy, with a high near 64.
Wednesday Night
Mostly clear, with a low around 41.
Thursday
Sunny, with a high near 70.
Thursday Night
Partly cloudy, with a low around 47.
Friday
Mostly sunny, with a high near 70.
Friday Night
Partly cloudy, with a low around 48.
Saturday
A 40 percent chance of showers. Partly sunny, with a high near 65.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mahwah NJ
 41.09°N 74.17°W (Elev. 299 ft)
Last Update:
2:19 pm EDT Apr 18, 2026
Forecast Valid:
6pm EDT Apr 18, 2026-6pm EDT Apr 25, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation