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

Hazardous Weather Conditions

Current conditions at

Chatham, Chatham Municipal Airport (KCQX)

Lat: 41.69°NLon: 69.99°WElev: 66ft.

Overcast

34°F

1°C

Humidity 92%
Wind Speed NE 8 mph
Barometer 29.64 in (1003.9 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 21 Feb 1:52 am EST
Extended Forecast for

Dennis Port MA

Coastal Flood Watch February 23, 01:00am until February 24, 07:00am
Winter Storm Watch February 23, 12:00am until February 23, 07:00pm
High Wind Watch February 23, 06:00am until February 23, 11:00pm
Click here for hazard details and duration
Coastal Flood Watch
Winter Storm Watch
High Wind Watch

  • Overnight

    Overnight: A chance of rain before 3am, then a chance of snow. Cloudy, with a low around 32. North wind around 8 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

    Low: 32 °F

    Chance
    Rain/Snow

  • Saturday

    Saturday: A chance of snow, mainly before 9am. Cloudy, with a high near 34. North wind 8 to 10 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    High: 34 °F

    Chance Snow
    then Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 29. North wind around 5 mph becoming calm in the evening.

    Low: 29 °F

    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of snow after 1pm. Cloudy, with a high near 36. East wind 5 to 9 mph. Chance of precipitation is 20%.

    High: 36 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Sunday Night

    Sunday Night: Snow, mainly after 11pm. The snow could be heavy at times. Low around 28. East wind 10 to 18 mph, with gusts as high as 36 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    Low: 28 °F

    Heavy Snow

  • Monday

    Monday: Snow. The snow could be heavy at times. High near 35. Breezy, with a north wind 21 to 25 mph, with gusts as high as 50 mph. Chance of precipitation is 90%. New snow accumulation of 6 to 10 inches possible.

    High: 35 °F

    Heavy Snow
    and Breezy

  • Monday Night

    Monday Night: Snow likely, mainly before 10pm. The snow could be heavy at times. Mostly cloudy, with a low around 23. Blustery, with a northwest wind 17 to 22 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 40 mph. Chance of precipitation is 70%.

    Low: 23 °F

    Heavy Snow
    and Blustery
    then Chance
    Snow

  • Tuesday

    Tuesday: Partly sunny, with a high near 32. Northwest wind 6 to 10 mph, with gusts as high as 20 mph.

    High: 32 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 20. West wind around 6 mph.

    Low: 20 °F

    Partly Cloudy

Detailed Forecast

Overnight
A chance of rain before 3am, then a chance of snow. Cloudy, with a low around 32. North wind around 8 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Saturday
A chance of snow, mainly before 9am. Cloudy, with a high near 34. North wind 8 to 10 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Saturday Night
Mostly cloudy, with a low around 29. North wind around 5 mph becoming calm in the evening.
Sunday
A slight chance of snow after 1pm. Cloudy, with a high near 36. East wind 5 to 9 mph. Chance of precipitation is 20%.
Sunday Night
Snow, mainly after 11pm. The snow could be heavy at times. Low around 28. East wind 10 to 18 mph, with gusts as high as 36 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Monday
Snow. The snow could be heavy at times. High near 35. Breezy, with a north wind 21 to 25 mph, with gusts as high as 50 mph. Chance of precipitation is 90%. New snow accumulation of 6 to 10 inches possible.
Monday Night
Snow likely, mainly before 10pm. The snow could be heavy at times. Mostly cloudy, with a low around 23. Blustery, with a northwest wind 17 to 22 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 40 mph. Chance of precipitation is 70%.
Tuesday
Partly sunny, with a high near 32. Northwest wind 6 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 20. West wind around 6 mph.
Wednesday
A chance of snow before noon, then a chance of rain between noon and 4pm, then a chance of rain and snow after 4pm. Mostly cloudy, with a high near 38. West wind 6 to 9 mph becoming south in the afternoon. Chance of precipitation is 30%.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 29. Southwest wind 6 to 8 mph. Chance of precipitation is 40%.
Thursday
Rain likely. Mostly cloudy, with a high near 41. Southwest wind 9 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 28. Southwest wind around 7 mph. Chance of precipitation is 50%.
Friday
A chance of rain and snow. Partly sunny, with a high near 37. Northwest wind 7 to 9 mph. Chance of precipitation is 30%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Dennis Port MA
 41.66°N 70.14°W (Elev. 13 ft)
Last Update:
4:49 pm EST Feb 20, 2026
Forecast Valid:
2am EST Feb 21, 2026-6pm EST Feb 27, 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