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

70°F

21°C

Humidity 64%
Wind Speed NW 6 mph
Barometer 29.84 in (1011.0 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 17 Apr 8:53 am EDT
Extended Forecast for

Lake Hiawatha NJ

  • Today

    Today: Scattered showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 79. Northwest wind 5 to 10 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 79 °F

    Scattered
    Showers

  • Tonight

    Tonight: Mostly cloudy, with a low around 56. Northeast wind around 5 mph becoming east after midnight.

    Low: 56 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 72. Southeast wind 5 to 10 mph.

    High: 72 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A chance of showers, mainly after 2am. Mostly cloudy, with a low around 49. Southeast wind 5 to 10 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 49 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Sunday

    Sunday: Showers, mainly after 8am. High near 55. Northwest wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 55 °F

    Showers

  • Sunday Night

    Sunday Night: A slight chance of showers before 2am. Partly cloudy, with a low around 36. Chance of precipitation is 20%.

    Low: 36 °F

    Slight Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 50.

    High: 50 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 30.

    Low: 30 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

Detailed Forecast

Today
Scattered showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 79. Northwest wind 5 to 10 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Mostly cloudy, with a low around 56. Northeast wind around 5 mph becoming east after midnight.
Saturday
Partly sunny, with a high near 72. Southeast wind 5 to 10 mph.
Saturday Night
A chance of showers, mainly after 2am. Mostly cloudy, with a low around 49. Southeast wind 5 to 10 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Showers, mainly after 8am. High near 55. Northwest wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
A slight chance of showers before 2am. Partly cloudy, with a low around 36. Chance of precipitation is 20%.
Monday
Mostly sunny, with a high near 50.
Monday Night
Mostly clear, with a low around 30.
Tuesday
Sunny, with a high near 56.
Tuesday Night
Partly cloudy, with a low around 44.
Wednesday
Mostly sunny, with a high near 69.
Wednesday Night
Partly cloudy, with a low around 46.
Thursday
Mostly sunny, with a high near 70.
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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:
6:04 am EDT Apr 17, 2026
Forecast Valid:
9am EDT Apr 17, 2026-6pm EDT Apr 23, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation