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

62°F

17°C

Humidity 50%
Wind Speed S 6 mph
Barometer 29.99 in (1016.1 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 18 Oct 6:53 pm EDT
Extended Forecast for

Mahwah NJ

  • Tonight

    Tonight: Patchy fog before 3am, then patchy fog after 4am. Otherwise, mostly clear, with a low around 45. Calm wind.

    Low: 45 °F

    Mostly Clear
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 74. Light southeast wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 24 mph.

    High: 74 °F

    Patchy Fog
    then Partly
    Sunny

  • Sunday Night

    Sunday Night: A chance of showers, then showers and possibly a thunderstorm after 2am. Low around 55. South wind around 9 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 55 °F

    Chance
    Showers then
    Showers

  • Monday

    Monday: Showers, mainly before 2pm. High near 64. South wind around 11 mph becoming west in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 64 °F

    Showers

  • Monday Night

    Monday Night: A 30 percent chance of showers, mainly before 8pm. Partly cloudy, with a low around 44. West wind 6 to 8 mph.

    Low: 44 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 48.

    Low: 48 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers before 2pm. Mostly sunny, with a high near 64.

    High: 64 °F

    Chance
    Showers

  • Wednesday Night

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

    Low: 41 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy fog before 3am, then patchy fog after 4am. Otherwise, mostly clear, with a low around 45. Calm wind.
Sunday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 74. Light southeast wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 24 mph.
Sunday Night
A chance of showers, then showers and possibly a thunderstorm after 2am. Low around 55. South wind around 9 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Monday
Showers, mainly before 2pm. High near 64. South wind around 11 mph becoming west in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Monday Night
A 30 percent chance of showers, mainly before 8pm. Partly cloudy, with a low around 44. West wind 6 to 8 mph.
Tuesday
Sunny, with a high near 66.
Tuesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 48.
Wednesday
A 30 percent chance of showers before 2pm. Mostly sunny, with a high near 64.
Wednesday Night
Mostly clear, with a low around 41.
Thursday
Mostly sunny, with a high near 58.
Thursday Night
Mostly clear, with a low around 39.
Friday
Sunny, with a high near 58.
Friday Night
Partly cloudy, with a low around 41.
Saturday
Partly sunny, with a high near 59.
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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:
2:04 pm EDT Oct 18, 2025
Forecast Valid:
7pm EDT Oct 18, 2025-6pm EDT Oct 25, 2025
 
Forecast Discussion
 
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Additional Resources

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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