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

80°F

27°C

Humidity 56%
Wind Speed W 13 mph
Barometer 29.83 in (1010.5 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 14 Oct 2:53 pm EDT
Extended Forecast for

Mahwah NJ

  • Tonight

    Tonight: Partly cloudy, with a low around 50. North wind 5 to 7 mph, with gusts as high as 23 mph.

    Low: 50 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 64. North wind around 5 mph becoming calm in the afternoon.

    High: 64 °F

    Sunny

  • Thursday Night

    Thursday Night: Showers after 2am. Low around 51. Light and variable wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 51 °F

    Partly Cloudy
    then Showers

  • Friday

    Friday: Showers, with thunderstorms also possible after 5pm. High near 73. Southwest wind 5 to 7 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 73 °F

    Showers

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 8pm, then showers likely between 8pm and 2am. Mostly cloudy, with a low around 44. Northwest wind 7 to 11 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 44 °F

    Showers
    Likely

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 52.

    High: 52 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 50. North wind 5 to 7 mph, with gusts as high as 23 mph.
Thursday
Sunny, with a high near 64. North wind around 5 mph becoming calm in the afternoon.
Thursday Night
Showers after 2am. Low around 51. Light and variable wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Showers, with thunderstorms also possible after 5pm. High near 73. Southwest wind 5 to 7 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers likely and possibly a thunderstorm before 8pm, then showers likely between 8pm and 2am. Mostly cloudy, with a low around 44. Northwest wind 7 to 11 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 52.
Saturday Night
Mostly clear, with a low around 34.
Sunday
Sunny, with a high near 56.
Sunday Night
Mostly clear, with a low around 38.
Monday
Sunny, with a high near 62.
Monday Night
Partly cloudy, with a low around 42.
Tuesday
Mostly sunny, with a high near 65.
Tuesday Night
Partly cloudy, with a low around 45.
Wednesday
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:
2:21 pm EDT Oct 14, 2026
Forecast Valid:
3pm EDT Oct 14, 2026-6pm EDT Oct 21, 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