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

36°F

2°C

Humidity 82%
Wind Speed Vrbl 5 mph
Barometer 30.09 in (1019.0 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 18 Jan 10:52 am EST
Extended Forecast for

Dennis Port MA

Winter Weather Advisory until January 19, 07:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory until January 19, 07:00am

    NOW until 7:00am Mon

    Winter Weather Advisory

  • Today

    High: 38 °F

    Snow

  • Tonight

    Tonight: Snow. Low around 28. Northeast wind 6 to 9 mph becoming northwest after midnight. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.

    Low: 28 °F

    Snow

  • M.L.King Day

    M.L.King Day: Snow showers, mainly before 9am. High near 36. Southwest wind 6 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 36 °F

    Snow Showers
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 21. West wind 9 to 14 mph, with gusts as high as 29 mph.

    Low: 21 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 26. West wind 6 to 15 mph, with gusts as high as 25 mph.

    High: 26 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 16. West wind 7 to 14 mph.

    Low: 16 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 35. Southwest wind 7 to 10 mph.

    High: 35 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of snow showers after 4am. Mostly cloudy, with a low around 30. Southwest wind around 10 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.

    Low: 30 °F

    Mostly Cloudy
    then Chance
    Snow Showers

Detailed Forecast

Today
Snow. High near 38. Northwest wind 5 to 7 mph becoming northeast in the afternoon. Chance of precipitation is 100%. Little or no snow accumulation expected.
Tonight
Snow. Low around 28. Northeast wind 6 to 9 mph becoming northwest after midnight. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.
M.L.King Day
Snow showers, mainly before 9am. High near 36. Southwest wind 6 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Monday Night
Partly cloudy, with a low around 21. West wind 9 to 14 mph, with gusts as high as 29 mph.
Tuesday
Mostly sunny, with a high near 26. West wind 6 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 16. West wind 7 to 14 mph.
Wednesday
Mostly sunny, with a high near 35. Southwest wind 7 to 10 mph.
Wednesday Night
A chance of snow showers after 4am. Mostly cloudy, with a low around 30. Southwest wind around 10 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.
Thursday
A chance of snow showers before 9am, then a chance of rain showers between 9am and 11am. Partly sunny, with a high near 40. Southwest wind 9 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.
Thursday Night
Partly cloudy, with a low around 21. West wind around 10 mph, with gusts as high as 22 mph.
Friday
Mostly sunny, with a high near 33. West wind 8 to 10 mph, with gusts as high as 20 mph.
Friday Night
Mostly cloudy, with a low around 25. Southwest wind around 7 mph.
Saturday
A chance of snow showers. Mostly cloudy, with a high near 36. Southwest wind 7 to 10 mph. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Dennis Port MA
 41.66°N 70.14°W (Elev. 13 ft)
Last Update:
6:21 am EST Jan 18, 2026
Forecast Valid:
11am EST Jan 18, 2026-6pm EST Jan 24, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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