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

Widespread Rain from Texas to the Central Appalachians; Heavy to Excessive Rainfall in Southern California and the Southwest

Scattered thunderstorms and widespread showers are expected from the Texas coast to the central Appalachians today. Heavy to excessive rainfall will continue in southern California into the Desert Southwest through Saturday. Heavy rain will pose a risk of flash flooding, especially across burn scar and urbanized regions. Read More >

Current conditions at

Morristown Airport (KMMU)

Lat: 40.8°NLon: 74.42°WElev: 187ft.

Rain

45°F

7°C

Humidity 100%
Wind Speed N 3 mph
Barometer 29.87 in
Dewpoint 45°F (7°C)
Visibility 2.00 mi
Last update 22 Nov 5:35 am EST
Extended Forecast for

Mendham NJ

  • Overnight

    Overnight: Rain. Low around 41. Calm wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 41 °F

    Rain

  • Saturday

    Saturday: Rain likely, mainly before 10am. Cloudy through mid morning, then gradual clearing, with a high near 51. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 51 °F

    Rain Likely
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 28. Calm wind.

    Low: 28 °F

    Mostly Clear

  • Sunday

    Sunday: A slight chance of snow showers before 10am, then a slight chance of rain and snow showers between 10am and 2pm, then a slight chance of rain showers after 2pm. Mostly sunny, with a high near 48. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 20%.

    High: 48 °F

    Slight Chance
    Rain/Snow

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 34. West wind around 5 mph.

    Low: 34 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 50.

    High: 50 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of rain after 1pm. Cloudy, with a high near 51. Chance of precipitation is 30%.

    High: 51 °F

    Cloudy then
    Chance Rain

  • Tuesday Night

    Tuesday Night: Rain, mainly before 1am. Low around 45. Chance of precipitation is 80%.

    Low: 45 °F

    Rain

Detailed Forecast

Overnight
Rain. Low around 41. Calm wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Rain likely, mainly before 10am. Cloudy through mid morning, then gradual clearing, with a high near 51. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Mostly clear, with a low around 28. Calm wind.
Sunday
A slight chance of snow showers before 10am, then a slight chance of rain and snow showers between 10am and 2pm, then a slight chance of rain showers after 2pm. Mostly sunny, with a high near 48. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 20%.
Sunday Night
Partly cloudy, with a low around 34. West wind around 5 mph.
Monday
Sunny, with a high near 50.
Monday Night
Mostly cloudy, with a low around 33.
Tuesday
A chance of rain after 1pm. Cloudy, with a high near 51. Chance of precipitation is 30%.
Tuesday Night
Rain, mainly before 1am. Low around 45. Chance of precipitation is 80%.
Wednesday
A chance of rain. Mostly cloudy, with a high near 59. Chance of precipitation is 40%.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 39. Chance of precipitation is 30%.
Thanksgiving Day
Partly sunny, with a high near 48.
Thursday Night
Partly cloudy, with a low around 30.
Friday
Mostly sunny, with a high near 42.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mendham NJ
 40.76°N 74.59°W (Elev. 600 ft)
Last Update:
4:09 am EST Nov 22, 2025
Forecast Valid:
5am EST Nov 22, 2025-6pm EST Nov 28, 2025
 
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