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.

Overcast

66°F

19°C

Humidity 87%
Wind Speed NA
Barometer 30.02 in (1017.1 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 20 Sep 10:53 am EDT
Extended Forecast for

Mahwah NJ

  • Today

    Today: Rain. High near 65. Southeast wind around 9 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 65 °F

    Rain

  • Tonight

    Tonight: Periods of rain and possibly a thunderstorm before 11pm, then a chance of rain. Low around 56. Light and variable wind becoming north 5 to 9 mph after midnight. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 56 °F

    Rain then
    Chance Rain

  • Monday

    Monday: Partly sunny, with a high near 66. Northeast wind 7 to 10 mph.

    High: 66 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 30 percent chance of showers, mainly after 2am. Mostly cloudy, with a low around 51. Northeast wind around 7 mph.

    Low: 51 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A 40 percent chance of showers. Mostly cloudy, with a high near 61. Northeast wind 7 to 9 mph, with gusts as high as 20 mph.

    High: 61 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 46.

    Low: 46 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 63.

    High: 63 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 47.

    Low: 47 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 30 percent chance of showers after 2pm. Mostly cloudy, with a high near 62.

    High: 62 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

Today
Rain. High near 65. Southeast wind around 9 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Tonight
Periods of rain and possibly a thunderstorm before 11pm, then a chance of rain. Low around 56. Light and variable wind becoming north 5 to 9 mph after midnight. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
Partly sunny, with a high near 66. Northeast wind 7 to 10 mph.
Monday Night
A 30 percent chance of showers, mainly after 2am. Mostly cloudy, with a low around 51. Northeast wind around 7 mph.
Tuesday
A 40 percent chance of showers. Mostly cloudy, with a high near 61. Northeast wind 7 to 9 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly cloudy, with a low around 46.
Wednesday
Mostly cloudy, with a high near 63.
Wednesday Night
Mostly cloudy, with a low around 47.
Thursday
A 30 percent chance of showers after 2pm. Mostly cloudy, with a high near 62.
Thursday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 47.
Friday
A 30 percent chance of showers. Partly sunny, with a high near 62.
Friday Night
Mostly cloudy, with a low around 48.
Saturday
Partly sunny, with a high near 67.
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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:
3:41 am EDT Sep 20, 2026
Forecast Valid:
11am EDT Sep 20, 2026-6pm EDT Sep 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