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

Major Winter Storm Anticipated Sunday into Monday

Potentially significant snowfall is forecast from a winter storm Sunday into Monday. View the latest briefing here. Read More >

Hazardous Weather Conditions

Current conditions at

Morristown Airport (KMMU)

Lat: 40.8°NLon: 74.42°WElev: 187ft.

Mostly Cloudy

45°F

7°C

Humidity 61%
Wind Speed N 7 mph
Barometer 29.99 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 21 Feb 12:46 pm EST
Extended Forecast for

Chatham NJ

Winter Storm Warning February 22, 04:00am until February 23, 06:00pm
Click here for hazard details and duration
Winter Storm Warning

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 46. Northwest wind around 5 mph.

    High: 46 °F

    Partly Sunny

  • Tonight

    Tonight: A slight chance of rain between 3am and 5am, then a chance of rain and snow. Mostly cloudy, with a low around 31. Calm wind becoming east around 5 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 31 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

  • Sunday

    Sunday: Snow, possibly mixed with rain, becoming all snow after 10am. High near 34. East wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    High: 34 °F

    Rain/Snow
    then Snow

  • Sunday Night

    Sunday Night: Snow. The snow could be heavy at times. Patchy blowing snow after 9pm. Low around 26. Blustery, with a north wind 15 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 90%. New snow accumulation of 6 to 10 inches possible.

    Low: 26 °F

    Heavy Snow
    and Patchy
    Blowing Snow

  • Monday

    Monday: Snow, mainly before 1pm. Areas of blowing snow before 4pm. High near 35. Breezy, with a north wind 15 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.

    High: 35 °F

    Snow and
    Areas Blowing
    Snow

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 22.

    Low: 22 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 32.

    High: 32 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 18.

    Low: 18 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of snow before 1pm, then a chance of rain and snow. Mostly cloudy, with a high near 38. Chance of precipitation is 30%.

    High: 38 °F

    Chance Snow
    then Chance
    Rain/Snow

Detailed Forecast

This Afternoon
Partly sunny, with a high near 46. Northwest wind around 5 mph.
Tonight
A slight chance of rain between 3am and 5am, then a chance of rain and snow. Mostly cloudy, with a low around 31. Calm wind becoming east around 5 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Sunday
Snow, possibly mixed with rain, becoming all snow after 10am. High near 34. East wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Sunday Night
Snow. The snow could be heavy at times. Patchy blowing snow after 9pm. Low around 26. Blustery, with a north wind 15 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 90%. New snow accumulation of 6 to 10 inches possible.
Monday
Snow, mainly before 1pm. Areas of blowing snow before 4pm. High near 35. Breezy, with a north wind 15 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.
Monday Night
Mostly cloudy, with a low around 22.
Tuesday
Mostly sunny, with a high near 32.
Tuesday Night
Mostly cloudy, with a low around 18.
Wednesday
A chance of snow before 1pm, then a chance of rain and snow. Mostly cloudy, with a high near 38. Chance of precipitation is 30%.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 30. Chance of precipitation is 40%.
Thursday
A chance of rain. Mostly cloudy, with a high near 44. Chance of precipitation is 50%.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 29. Chance of precipitation is 40%.
Friday
Mostly sunny, with a high near 42.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chatham NJ
 40.74°N 74.42°W (Elev. 299 ft)
Last Update:
4:15 am EST Feb 21, 2026
Forecast Valid:
1pm EST Feb 21, 2026-6pm EST Feb 27, 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