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Hazardous Weather Conditions

Current conditions at

Morristown Airport (KMMU)

Lat: 40.8°NLon: 74.42°WElev: 187ft.

Fair

63°F

17°C

Humidity 100%
Wind Speed Calm
Barometer 29.97 in
Dewpoint 63°F (17°C)
Visibility 7.00 mi
Last update 20 Aug 4:35 am EDT
Extended Forecast for

Plainfield NJ

Flood Watch August 20, 02:00pm until August 21, 02:00am
Click here for hazard details and duration
Flood Watch

  • Today

    Today: Showers and possibly a thunderstorm, mainly after 2pm. Some of the storms could produce heavy rainfall. High near 82. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.

    High: 82 °F

    Chance
    Showers then
    Heavy Rain

  • Tonight

    Tonight: Showers and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 11pm. Some of the storms could produce heavy rainfall. Low around 63. Northeast wind 6 to 8 mph. Chance of precipitation is 80%. New precipitation amounts between three quarters and one inch possible.

    Low: 63 °F

    Heavy Rain
    then Mostly
    Cloudy

  • Friday

    Friday: Partly sunny, with a high near 80. North wind 5 to 8 mph.

    High: 80 °F

    Partly Sunny

  • Friday Night

    Friday Night: Showers likely after 2am. Mostly cloudy, with a low around 67. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 67 °F

    Mostly Cloudy
    then Showers
    Likely

  • Saturday

    Saturday: Showers likely. Mostly cloudy, with a high near 78. Northeast wind around 5 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    High: 78 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 67.

    Low: 67 °F

    Chance
    Showers

  • Sunday

    Sunday: A 50 percent chance of showers. Partly sunny, with a high near 82.

    High: 82 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

Detailed Forecast

Today
Showers and possibly a thunderstorm, mainly after 2pm. Some of the storms could produce heavy rainfall. High near 82. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
Tonight
Showers and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 11pm. Some of the storms could produce heavy rainfall. Low around 63. Northeast wind 6 to 8 mph. Chance of precipitation is 80%. New precipitation amounts between three quarters and one inch possible.
Friday
Partly sunny, with a high near 80. North wind 5 to 8 mph.
Friday Night
Showers likely after 2am. Mostly cloudy, with a low around 67. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Showers likely. Mostly cloudy, with a high near 78. Northeast wind around 5 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Saturday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 67.
Sunday
A 50 percent chance of showers. Partly sunny, with a high near 82.
Sunday Night
Partly cloudy, with a low around 63.
Monday
Sunny, with a high near 81.
Monday Night
Mostly clear, with a low around 61.
Tuesday
Sunny, with a high near 81.
Tuesday Night
Mostly clear, with a low around 62.
Wednesday
A 30 percent chance of showers. Mostly sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Plainfield NJ
 40.63°N 74.41°W (Elev. 135 ft)
Last Update:
2:27 am EDT Aug 20, 2026
Forecast Valid:
4am EDT Aug 20, 2026-6pm EDT Aug 26, 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