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.

Fair

35°F

2°C

Humidity 37%
Wind Speed SW 16 G 30 mph
Barometer 30.02 in (1016.9 mb)
Dewpoint 11°F (-12°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 23 Jan 1:52 pm EST
Extended Forecast for

Dennis Port MA

Cold Weather Advisory January 23, 10:00pm until January 24, 10:00am
Winter Storm Warning January 25, 07:00am until January 26, 08:00pm
Click here for hazard details and duration
Cold Weather Advisory
Winter Storm Warning

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 34. West wind around 14 mph, with gusts as high as 29 mph.

    High: 34 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 8. Wind chill values as low as -7. Northwest wind around 15 mph, with gusts as high as 32 mph.

    Low: 8 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 17. Wind chill values as low as -8. Northwest wind 9 to 14 mph, with gusts as high as 29 mph.

    High: 17 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 12. Northwest wind 6 to 8 mph.

    Low: 12 °F

    Mostly Cloudy

  • Sunday

    Sunday: Snow, mainly after 11am. The snow could be heavy at times. High near 32. North wind 6 to 10 mph becoming east in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.

    High: 32 °F

    Snow Likely
    then Heavy
    Snow

  • Sunday Night

    Sunday Night: Snow before 2am, then snow and sleet between 2am and 3am, then rain, snow, and sleet after 3am. The snow could be heavy at times. Areas of blowing snow between 10pm and 1am. Low around 24. East wind 15 to 17 mph, with gusts as high as 38 mph. Chance of precipitation is 100%. New snow and sleet accumulation of 5 to 9 inches possible.

    Low: 24 °F

    Wintry Mix
    and Areas
    Blowing Snow

  • Monday

    Monday: Rain, snow, and sleet before 11am, then rain likely between 11am and 1pm, then snow likely after 1pm. High near 37. Northeast wind 11 to 15 mph becoming north in the afternoon. Winds could gust as high as 33 mph. Chance of precipitation is 80%.

    High: 37 °F

    Wintry Mix

  • Monday Night

    Monday Night: Snow likely, mainly before 10pm. Mostly cloudy, with a low around 14. Northwest wind 11 to 15 mph, with gusts as high as 32 mph. Chance of precipitation is 60%.

    Low: 14 °F

    Snow Likely

  • Tuesday

    Tuesday: A chance of snow before 9am. Mostly sunny, with a high near 24. West wind 11 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.

    High: 24 °F

    Chance Snow
    then Mostly
    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 34. West wind around 14 mph, with gusts as high as 29 mph.
Tonight
Mostly cloudy, with a low around 8. Wind chill values as low as -7. Northwest wind around 15 mph, with gusts as high as 32 mph.
Saturday
Partly sunny, with a high near 17. Wind chill values as low as -8. Northwest wind 9 to 14 mph, with gusts as high as 29 mph.
Saturday Night
Mostly cloudy, with a low around 12. Northwest wind 6 to 8 mph.
Sunday
Snow, mainly after 11am. The snow could be heavy at times. High near 32. North wind 6 to 10 mph becoming east in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.
Sunday Night
Snow before 2am, then snow and sleet between 2am and 3am, then rain, snow, and sleet after 3am. The snow could be heavy at times. Areas of blowing snow between 10pm and 1am. Low around 24. East wind 15 to 17 mph, with gusts as high as 38 mph. Chance of precipitation is 100%. New snow and sleet accumulation of 5 to 9 inches possible.
Monday
Rain, snow, and sleet before 11am, then rain likely between 11am and 1pm, then snow likely after 1pm. High near 37. Northeast wind 11 to 15 mph becoming north in the afternoon. Winds could gust as high as 33 mph. Chance of precipitation is 80%.
Monday Night
Snow likely, mainly before 10pm. Mostly cloudy, with a low around 14. Northwest wind 11 to 15 mph, with gusts as high as 32 mph. Chance of precipitation is 60%.
Tuesday
A chance of snow before 9am. Mostly sunny, with a high near 24. West wind 11 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.
Tuesday Night
Mostly cloudy, with a low around 13. West wind around 11 mph, with gusts as high as 24 mph.
Wednesday
Mostly sunny, with a high near 24. West wind around 11 mph.
Wednesday Night
Mostly cloudy, with a low around 13. West wind 7 to 9 mph.
Thursday
Partly sunny, with a high near 25. Northwest wind 7 to 10 mph, with gusts as high as 20 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Dennis Port MA
 41.66°N 70.14°W (Elev. 13 ft)
Last Update:
12:56 pm EST Jan 23, 2026
Forecast Valid:
2pm EST Jan 23, 2026-6pm EST Jan 29, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation