National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Caldwell, Essex County Airport (KCDW)

Lat: 40.88°NLon: 74.28°WElev: 171ft.

Fair

31°F

-1°C

Humidity 69%
Wind Speed Calm
Barometer 30.35 in (1028.4 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Last update 21 Apr 2:53 am EDT
Extended Forecast for

Boonton NJ

Freeze Warning April 21, 03:48am until April 21, 09:00am
Click here for hazard details and duration
Freeze Warning
  •  
    Freeze Warning April 21, 03:48am until April 21, 09:00am

    NOW until 9:00am Tue

    Freeze Warning

  • Overnight

    Low: 26 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 54. Calm wind becoming south around 5 mph in the afternoon.

    High: 54 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers after 2am. Increasing clouds, with a low around 40. Calm wind becoming south around 5 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 40 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers before 2pm. Mostly cloudy, with a high near 61. South wind around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 61 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 43. Calm wind.

    Low: 43 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 67.

    High: 67 °F

    Mostly Sunny

Detailed Forecast

Overnight
Clear, with a low around 26. North wind around 5 mph.
Tuesday
Sunny, with a high near 54. Calm wind becoming south around 5 mph in the afternoon.
Tuesday Night
A chance of showers after 2am. Increasing clouds, with a low around 40. Calm wind becoming south around 5 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
A chance of showers before 2pm. Mostly cloudy, with a high near 61. South wind around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Partly cloudy, with a low around 43. Calm wind.
Thursday
Mostly sunny, with a high near 69.
Thursday Night
Partly cloudy, with a low around 45.
Friday
Mostly sunny, with a high near 67.
Friday Night
A chance of showers after 2am. Partly cloudy, with a low around 44. Chance of precipitation is 30%.
Saturday
A chance of showers. Mostly cloudy, with a high near 57. Chance of precipitation is 50%.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 45. Chance of precipitation is 50%.
Sunday
A chance of showers. Mostly cloudy, with a high near 60. Chance of precipitation is 30%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 43. Chance of precipitation is 30%.
Monday
A chance of showers. Partly sunny, with a high near 62. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Boonton NJ
 40.92°N 74.44°W (Elev. 499 ft)
Last Update:
4:10 pm EDT Apr 20, 2026
Forecast Valid:
3am EDT Apr 21, 2026-6pm EDT Apr 27, 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