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

71°F

22°C

Humidity 59%
Wind Speed NW 9 mph
Barometer 29.82 in (1010.2 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 12 Oct 4:53 pm EDT
Extended Forecast for

Lake Hiawatha NJ

  • Tonight

    Tonight: Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 55. Northwest wind around 5 mph becoming calm in the evening.

    Low: 55 °F

    Patchy Fog

  • Tuesday

    Tuesday: Patchy fog before 10am. Otherwise, mostly sunny, with a high near 75. Calm wind becoming south around 5 mph in the afternoon.

    High: 75 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 64. Southwest wind around 5 mph, with gusts as high as 20 mph.

    Low: 64 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 79. West wind around 5 mph.

    High: 79 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 54. North wind around 5 mph.

    Low: 54 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

  • Thursday Night

    Thursday Night: Showers likely after 2am. Partly cloudy, with a low around 52. Chance of precipitation is 60%.

    Low: 52 °F

    Partly Cloudy
    then Showers
    Likely

  • Friday

    Friday: Showers likely. Mostly cloudy, with a high near 69. Chance of precipitation is 70%.

    High: 69 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 42.

    Low: 42 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 55. Northwest wind around 5 mph becoming calm in the evening.
Tuesday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 75. Calm wind becoming south around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 64. Southwest wind around 5 mph, with gusts as high as 20 mph.
Wednesday
Mostly sunny, with a high near 79. West wind around 5 mph.
Wednesday Night
Mostly cloudy, with a low around 54. North wind around 5 mph.
Thursday
Sunny, with a high near 67.
Thursday Night
Showers likely after 2am. Partly cloudy, with a low around 52. Chance of precipitation is 60%.
Friday
Showers likely. Mostly cloudy, with a high near 69. Chance of precipitation is 70%.
Friday Night
Mostly cloudy, with a low around 42.
Saturday
Mostly sunny, with a high near 52. Breezy.
Saturday Night
Mostly clear, with a low around 36.
Sunday
Sunny, with a high near 57.
Sunday Night
Mostly clear, with a low around 39.
Monday
Sunny, with a high near 63.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lake Hiawatha NJ
 40.89°N 74.39°W (Elev. 299 ft)
Last Update:
4:10 pm EDT Oct 12, 2026
Forecast Valid:
5pm EDT Oct 12, 2026-6pm EDT Oct 19, 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