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

Heavy to Excessive Rainfall This Week from the Southwest into Central U.S.

Pacific tropical moisture wrapping into a storm over the southwest U.S. will continue a multi-day heavy rainfall event this week that will extend into the Midwest and southern Plains. Considerable flash flooding is possible across portions of New Mexico and west Texas today through Wednesday. Read More >

Current conditions at

Morristown Airport (KMMU)

Lat: 40.8°NLon: 74.42°WElev: 187ft.

Mostly Cloudy

70°F

21°C

Humidity 73%
Wind Speed N 8 mph
Barometer 30.02 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 29 Sep 11:45 am EDT
Extended Forecast for

Chatham NJ

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 72. Northwest wind around 5 mph.

    High: 72 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 55. Calm wind.

    Low: 55 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Mostly sunny, with a high near 76. Calm wind becoming west around 5 mph.

    High: 76 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 60. Calm wind.

    Low: 60 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 79. Calm wind becoming southwest around 5 mph in the morning.

    High: 79 °F

    Mostly Sunny

  • Thursday Night

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

    Low: 63 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 61.

    Low: 61 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of showers after 2pm. Partly sunny, with a high near 72. Chance of precipitation is 30%.

    High: 72 °F

    Partly Sunny
    then Chance
    Showers

Detailed Forecast

This Afternoon
Partly sunny, with a high near 72. Northwest wind around 5 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 55. Calm wind.
Wednesday
Mostly sunny, with a high near 76. Calm wind becoming west around 5 mph.
Wednesday Night
Mostly cloudy, with a low around 60. Calm wind.
Thursday
Mostly sunny, with a high near 79. Calm wind becoming southwest around 5 mph in the morning.
Thursday Night
Partly cloudy, with a low around 63.
Friday
Mostly sunny, with a high near 82.
Friday Night
Mostly cloudy, with a low around 61.
Saturday
A chance of showers after 2pm. Partly sunny, with a high near 72. Chance of precipitation is 30%.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 55. Chance of precipitation is 50%.
Sunday
Showers likely. Mostly cloudy, with a high near 67. Chance of precipitation is 60%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 53. Chance of precipitation is 40%.
Monday
Partly sunny, with a high near 67.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chatham NJ
 40.74°N 74.39°W (Elev. 256 ft)
Last Update:
4:09 am EDT Sep 29, 2026
Forecast Valid:
12pm EDT Sep 29, 2026-6pm EDT Oct 5, 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