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.

Partly Cloudy

77°F

25°C

Humidity 69%
Wind Speed SW 10 mph
Barometer 29.89 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 13 Oct 3:45 pm EDT
Extended Forecast for

Mendham NJ

  • Tonight

    Tonight: Clear, with a low around 64. Southwest wind 5 to 10 mph.

    Low: 64 °F

    Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 80. West wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 80 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 52. Northwest wind around 5 mph.

    Low: 52 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 66. North wind around 5 mph becoming calm.

    High: 66 °F

    Sunny

  • Thursday Night

    Thursday Night: Showers, mainly after 2am. Low around 52. Calm wind becoming southeast around 5 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 52 °F

    Chance
    Showers then
    Showers

  • Friday

    Friday: Showers, with thunderstorms also possible after 2pm. High near 72. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 72 °F

    Showers

  • Friday Night

    Friday Night: Showers before 8pm. Low around 40. Chance of precipitation is 80%.

    Low: 40 °F

    Showers then
    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 49. Breezy.

    High: 49 °F

    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Patchy frost after 4am. Otherwise, mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear
    then Patchy
    Frost

Detailed Forecast

Tonight
Clear, with a low around 64. Southwest wind 5 to 10 mph.
Wednesday
Mostly sunny, with a high near 80. West wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Partly cloudy, with a low around 52. Northwest wind around 5 mph.
Thursday
Sunny, with a high near 66. North wind around 5 mph becoming calm.
Thursday Night
Showers, mainly after 2am. Low around 52. Calm wind becoming southeast around 5 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Showers, with thunderstorms also possible after 2pm. High near 72. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers before 8pm. Low around 40. Chance of precipitation is 80%.
Saturday
Sunny, with a high near 49. Breezy.
Saturday Night
Patchy frost after 4am. Otherwise, mostly clear, with a low around 34.
Sunday
Patchy frost before 9am. Otherwise, sunny, with a high near 56.
Sunday Night
Mostly clear, with a low around 38.
Monday
Mostly sunny, with a high near 61.
Monday Night
Partly cloudy, with a low around 45.
Tuesday
Mostly sunny, with a high near 66.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mendham NJ
 40.76°N 74.59°W (Elev. 600 ft)
Last Update:
3:18 pm EDT Oct 13, 2026
Forecast Valid:
4pm EDT Oct 13, 2026-6pm EDT Oct 20, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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