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

54°F

12°C

Humidity 53%
Wind Speed NW 8 mph
Barometer 29.92 in (1013.7 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill52°F (11°C)
Last update 21 Mar 11:53 am EDT
Extended Forecast for

Mahwah NJ

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 57. North wind around 7 mph.

    High: 57 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 41. Calm wind.

    Low: 41 °F

    Increasing
    Clouds

  • Sunday

    Sunday: A 50 percent chance of rain after 2pm. Mostly cloudy, with a high near 68. Southwest wind 6 to 8 mph.

    High: 68 °F

    Mostly Cloudy
    then Chance
    Rain

  • Sunday Night

    Sunday Night: Rain, mainly after 8pm. Low around 40. West wind 5 to 7 mph becoming north after midnight. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 40 °F

    Rain

  • Monday

    Monday: A 30 percent chance of rain before 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 49. North wind around 10 mph, with gusts as high as 23 mph.

    High: 49 °F

    Chance Rain

  • Monday Night

    Monday Night: Mostly clear, with a low around 29.

    Low: 29 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 49.

    High: 49 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 53.

    High: 53 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 57. North wind around 7 mph.
Tonight
Increasing clouds, with a low around 41. Calm wind.
Sunday
A 50 percent chance of rain after 2pm. Mostly cloudy, with a high near 68. Southwest wind 6 to 8 mph.
Sunday Night
Rain, mainly after 8pm. Low around 40. West wind 5 to 7 mph becoming north after midnight. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Monday
A 30 percent chance of rain before 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 49. North wind around 10 mph, with gusts as high as 23 mph.
Monday Night
Mostly clear, with a low around 29.
Tuesday
Sunny, with a high near 49.
Tuesday Night
Mostly cloudy, with a low around 34.
Wednesday
Partly sunny, with a high near 53.
Wednesday Night
Mostly cloudy, with a low around 35.
Thursday
Mostly cloudy, with a high near 53.
Thursday Night
Rain likely. Mostly cloudy, with a low around 38. Chance of precipitation is 60%.
Friday
A 30 percent chance of rain. Partly sunny, with a high near 52.
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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:
9:57 am EDT Mar 21, 2026
Forecast Valid:
12pm EDT Mar 21, 2026-6pm EDT Mar 27, 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