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

Chatham, Chatham Municipal Airport (KCQX)

Lat: 41.69°NLon: 69.99°WElev: 66ft.

Fog

42°F

6°C

Humidity 100%
Wind Speed SW 10 G 22 mph
Barometer 29.79 in (1008.9 mb)
Dewpoint 42°F (6°C)
Visibility 0.50 mi
Wind Chill36°F (2°C)
Last update 8 Mar 3:52 am EDT
Extended Forecast for

Dennis Port MA

  • Overnight

    Overnight: A chance of rain and thunderstorms, mainly before 5am. Patchy dense fog. Otherwise, cloudy, with a low around 40. Southwest wind around 11 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

    Low: 40 °F

    Chance Rain
    and Patchy
    Dense Fog

  • Sunday

    Sunday: A chance of rain before 3pm, then a slight chance of freezing rain. Some thunder is also possible. Patchy dense fog before 3pm. Patchy freezing fog after 3pm. Otherwise, cloudy, with a high near 47. Southwest wind around 11 mph, with gusts as high as 23 mph. Chance of precipitation is 40%.

    High: 47 °F

    Chance
    Rain/Freezing
    Rain and
    Patchy
    Freezing Fog

  • Sunday Night

    Sunday Night: Patchy fog before 1am. Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 34. West wind around 6 mph.

    Low: 34 °F

    Patchy Fog

  • Monday

    Monday: Sunny, with a high near 52. Light southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 52 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 33. Southwest wind around 6 mph.

    Low: 33 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 47. Southwest wind 5 to 8 mph.

    High: 47 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 36. Southwest wind around 5 mph.

    Low: 36 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Cloudy, with a high near 50. South wind 6 to 10 mph, with gusts as high as 20 mph.

    High: 50 °F

    Cloudy

  • Wednesday Night

    Wednesday Night: Cloudy, with a low around 40. South wind 9 to 11 mph, with gusts as high as 28 mph.

    Low: 40 °F

    Cloudy

Detailed Forecast

Overnight
A chance of rain and thunderstorms, mainly before 5am. Patchy dense fog. Otherwise, cloudy, with a low around 40. Southwest wind around 11 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Sunday
A chance of rain before 3pm, then a slight chance of freezing rain. Some thunder is also possible. Patchy dense fog before 3pm. Patchy freezing fog after 3pm. Otherwise, cloudy, with a high near 47. Southwest wind around 11 mph, with gusts as high as 23 mph. Chance of precipitation is 40%.
Sunday Night
Patchy fog before 1am. Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 34. West wind around 6 mph.
Monday
Sunny, with a high near 52. Light southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Monday Night
Mostly clear, with a low around 33. Southwest wind around 6 mph.
Tuesday
Mostly sunny, with a high near 47. Southwest wind 5 to 8 mph.
Tuesday Night
Mostly cloudy, with a low around 36. Southwest wind around 5 mph.
Wednesday
Cloudy, with a high near 50. South wind 6 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Cloudy, with a low around 40. South wind 9 to 11 mph, with gusts as high as 28 mph.
Thursday
Rain likely, mainly after 11am. Cloudy, with a high near 50. South wind around 15 mph, with gusts as high as 31 mph. Chance of precipitation is 70%.
Thursday Night
Rain and snow likely. Mostly cloudy, with a low around 26. West wind 11 to 13 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.
Friday
Mostly sunny, with a high near 42. Southwest wind around 11 mph, with gusts as high as 21 mph.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around 33. Southwest wind 10 to 13 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 45. West wind 11 to 13 mph, with gusts as high as 25 mph.
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:
3:08 am EDT Mar 8, 2026
Forecast Valid:
4am EDT Mar 8, 2026-6pm EDT Mar 14, 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