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

Morristown Airport (KMMU)

Lat: 40.8°NLon: 74.42°WElev: 187ft.

Fair

41°F

5°C

Humidity 76%
Wind Speed Calm
Barometer 29.97 in
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 22 Mar 12:35 am EDT
Extended Forecast for

Plainfield NJ

  • Overnight

    Overnight: Mostly cloudy, with a steady temperature around 45. Calm wind.

    Low: 45 °F

    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of showers before 8am, then a chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 71. Southwest wind 3 to 7 mph. Chance of precipitation is 30%.

    High: 71 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday Night

    Sunday Night: Showers and thunderstorms before 9pm, then rain and possibly a thunderstorm between 9pm and 11pm, then rain after 11pm. Low around 42. North wind around 6 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 42 °F

    Showers

  • Monday

    Monday: A 30 percent chance of rain before 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 52. North wind 9 to 11 mph, with gusts as high as 21 mph.

    High: 52 °F

    Chance Rain

  • Monday Night

    Monday Night: Mostly clear, with a low around 31. Northwest wind 5 to 8 mph.

    Low: 31 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 50.

    High: 50 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 57.

    High: 57 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 37.

    Low: 37 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a steady temperature around 45. Calm wind.
Sunday
A slight chance of showers before 8am, then a chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 71. Southwest wind 3 to 7 mph. Chance of precipitation is 30%.
Sunday Night
Showers and thunderstorms before 9pm, then rain and possibly a thunderstorm between 9pm and 11pm, then rain after 11pm. Low around 42. North wind around 6 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Monday
A 30 percent chance of rain before 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 52. North wind 9 to 11 mph, with gusts as high as 21 mph.
Monday Night
Mostly clear, with a low around 31. Northwest wind 5 to 8 mph.
Tuesday
Sunny, with a high near 50.
Tuesday Night
Mostly cloudy, with a low around 34.
Wednesday
Mostly cloudy, with a high near 57.
Wednesday Night
Mostly cloudy, with a low around 37.
Thursday
A chance of rain between 8am and 2pm. Mostly cloudy, with a high near 59. Chance of precipitation is 30%.
Thursday Night
Rain likely. Mostly cloudy, with a low around 43. Chance of precipitation is 60%.
Friday
Mostly sunny, with a high near 54.
Friday Night
Partly cloudy, with a low around 29.
Saturday
Sunny, with a high near 48.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Plainfield NJ
 40.61°N 74.42°W (Elev. 95 ft)
Last Update:
3:03 pm EDT Mar 21, 2026
Forecast Valid:
12am EDT Mar 22, 2026-6pm EDT Mar 28, 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