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

77°F

25°C

Humidity 58%
Wind Speed SW 8 mph
Barometer 29.93 in (1013.9 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 15 Apr 10:53 am EDT
Extended Forecast for

Lake Hiawatha NJ

  • Today

    Today: Mostly sunny, with a high near 88. Southwest wind 10 to 15 mph.

    High: 88 °F

    Mostly Sunny

  • Tonight

    Tonight: A chance of showers and thunderstorms before 1am, then a chance of showers between 1am and 2am. Mostly cloudy, with a low around 66. Southwest wind around 5 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    Chance
    Showers

  • Thursday

    Thursday: Partly sunny, with a high near 88. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 88 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers. Mostly cloudy, with a low around 66. Southwest wind around 5 mph becoming calm. Chance of precipitation is 20%.

    Low: 66 °F

    Slight Chance
    Showers

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 81. Calm wind becoming west around 5 mph in the morning. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 72.

    High: 72 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A chance of showers after 2am. Mostly cloudy, with a low around 51. Chance of precipitation is 30%.

    Low: 51 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Showers likely, mainly after 2pm. Mostly cloudy, with a high near 65. Chance of precipitation is 60%.

    High: 65 °F

    Showers
    Likely

Detailed Forecast

Today
Mostly sunny, with a high near 88. Southwest wind 10 to 15 mph.
Tonight
A chance of showers and thunderstorms before 1am, then a chance of showers between 1am and 2am. Mostly cloudy, with a low around 66. Southwest wind around 5 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Partly sunny, with a high near 88. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday Night
A slight chance of showers. Mostly cloudy, with a low around 66. Southwest wind around 5 mph becoming calm. Chance of precipitation is 20%.
Friday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 81. Calm wind becoming west around 5 mph in the morning. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
Partly cloudy, with a low around 57.
Saturday
Partly sunny, with a high near 72.
Saturday Night
A chance of showers after 2am. Mostly cloudy, with a low around 51. Chance of precipitation is 30%.
Sunday
Showers likely, mainly after 2pm. Mostly cloudy, with a high near 65. Chance of precipitation is 60%.
Sunday Night
Rain showers likely before 5am, then a chance of rain and snow showers. Mostly cloudy, with a low around 38. Chance of precipitation is 60%.
Monday
A chance of snow showers. Mostly sunny, with a high near 51. Chance of precipitation is 30%.
Monday Night
Mostly clear, with a low around 33.
Tuesday
Sunny, with a high near 60.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lake Hiawatha NJ
 40.89°N 74.39°W (Elev. 299 ft)
Last Update:
4:09 am EDT Apr 15, 2026
Forecast Valid:
11am EDT Apr 15, 2026-6pm EDT Apr 21, 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