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

89°F

32°C

Humidity 36%
Wind Speed SW 9 mph
Barometer 29.82 in (1010.1 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 16 Apr 1:53 pm EDT
Extended Forecast for

Mahwah NJ

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 90. Southwest wind around 9 mph.

    High: 90 °F

    Mostly Sunny

  • Tonight

    Tonight: A slight chance of showers between 8pm and 2am. Mostly cloudy, with a low around 65. Southwest wind around 6 mph becoming light and variable after midnight. Chance of precipitation is 20%.

    Low: 65 °F

    Slight Chance
    Showers

  • Friday

    Friday: A 30 percent chance of showers after 2pm. Mostly sunny, with a high near 79. Northwest wind around 6 mph.

    High: 79 °F

    Mostly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 57. Light and variable wind.

    Low: 57 °F

    Chance
    Showers then
    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 71. Southeast wind 3 to 8 mph.

    High: 71 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 48.

    Low: 48 °F

    Chance
    Showers

  • Sunday

    Sunday: Showers. High near 59. Chance of precipitation is 80%.

    High: 59 °F

    Showers

  • Sunday Night

    Sunday Night: Showers likely, mainly before 8pm. Partly cloudy, with a low around 35. Chance of precipitation is 60%.

    Low: 35 °F

    Showers
    Likely then
    Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 90. Southwest wind around 9 mph.
Tonight
A slight chance of showers between 8pm and 2am. Mostly cloudy, with a low around 65. Southwest wind around 6 mph becoming light and variable after midnight. Chance of precipitation is 20%.
Friday
A 30 percent chance of showers after 2pm. Mostly sunny, with a high near 79. Northwest wind around 6 mph.
Friday Night
A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 57. Light and variable wind.
Saturday
Partly sunny, with a high near 71. Southeast wind 3 to 8 mph.
Saturday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 48.
Sunday
Showers. High near 59. Chance of precipitation is 80%.
Sunday Night
Showers likely, mainly before 8pm. Partly cloudy, with a low around 35. Chance of precipitation is 60%.
Monday
Mostly sunny, with a high near 48.
Monday Night
Mostly clear, with a low around 29.
Tuesday
Sunny, with a high near 57.
Tuesday Night
Mostly cloudy, with a low around 45.
Wednesday
Mostly 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:
1:15 pm EDT Apr 16, 2026
Forecast Valid:
2pm EDT Apr 16, 2026-6pm EDT Apr 22, 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