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

76°F

24°C

Humidity 56%
Wind Speed Calm
Barometer 30.10 in (1019.6 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 17 May 10:53 pm EDT
Extended Forecast for

Mahwah NJ

  • Tonight

    Tonight: Partly cloudy, with a low around 64. Calm wind.

    Low: 64 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 90. Calm wind becoming south 5 to 9 mph in the afternoon. Winds could gust as high as 21 mph.

    High: 90 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 68. Southeast wind around 5 mph becoming calm in the evening.

    Low: 68 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 93. Light southwest wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 93 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 72. Southwest wind around 7 mph.

    Low: 72 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm after 2pm. High near 89. Chance of precipitation is 80%.

    High: 89 °F

    Mostly Sunny
    then Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm before 8pm. Low around 53. Chance of precipitation is 80%.

    Low: 53 °F

    Showers then
    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 68.

    High: 68 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 64. Calm wind.
Monday
Sunny, with a high near 90. Calm wind becoming south 5 to 9 mph in the afternoon. Winds could gust as high as 21 mph.
Monday Night
Mostly clear, with a low around 68. Southeast wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 93. Light southwest wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 72. Southwest wind around 7 mph.
Wednesday
Showers and possibly a thunderstorm after 2pm. High near 89. Chance of precipitation is 80%.
Wednesday Night
Showers and possibly a thunderstorm before 8pm. Low around 53. Chance of precipitation is 80%.
Thursday
Partly sunny, with a high near 68.
Thursday Night
Partly cloudy, with a low around 50.
Friday
Partly sunny, with a high near 67.
Friday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 51.
Saturday
Showers likely. Mostly cloudy, with a high near 64. Chance of precipitation is 60%.
Saturday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 54.
Sunday
A 50 percent chance of showers. Mostly cloudy, with a high near 71.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mahwah NJ
 41.07°N 74.18°W (Elev. 374 ft)
Last Update:
3:04 pm EDT May 17, 2026
Forecast Valid:
10pm EDT May 17, 2026-6pm EDT May 24, 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