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

Hazardous Weather Conditions

Current conditions at

Hyannis, Barnstable Municipal-Boardman Airport (KHYA)

Lat: 41.67°NLon: 70.27°WElev: 49ft.

Fair

33°F

1°C

Humidity 89%
Wind Speed Calm
Barometer 30.07 in (1018.4 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 18 Jan 12:56 am EST
Extended Forecast for

Dennis MA

Winter Weather Advisory January 18, 07:00am until January 19, 07:00am
Click here for hazard details and duration
Winter Weather Advisory

  • Overnight

    Overnight: Mostly cloudy, with a low around 31. Southwest wind around 6 mph.

    Low: 31 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of rain and snow before 10am, then rain likely between 10am and 3pm, then snow, possibly mixed with rain after 3pm. High near 38. Southwest wind around 6 mph becoming northeast in the afternoon. Chance of precipitation is 100%. Little or no snow accumulation expected.

    High: 38 °F

    Chance
    Rain/Snow
    then
    Rain/Snow

  • Sunday Night

    Sunday Night: Snow, mainly before 3am. Low around 28. Northeast wind 6 to 10 mph becoming northwest after midnight. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

    Low: 28 °F

    Snow

  • M.L.King Day

    M.L.King Day: A slight chance of snow between 8am and 9am. Mostly sunny, with a high near 34. Southwest wind 10 to 18 mph. Chance of precipitation is 20%.

    High: 34 °F

    Slight Chance
    Snow then
    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 22. West wind around 17 mph.

    Low: 22 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 27. West wind around 15 mph.

    High: 27 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 17. West wind 10 to 14 mph.

    Low: 17 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 39. Southwest wind 9 to 14 mph.

    High: 39 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 31. Southwest wind around 15 mph.

    Low: 31 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 31. Southwest wind around 6 mph.
Sunday
A chance of rain and snow before 10am, then rain likely between 10am and 3pm, then snow, possibly mixed with rain after 3pm. High near 38. Southwest wind around 6 mph becoming northeast in the afternoon. Chance of precipitation is 100%. Little or no snow accumulation expected.
Sunday Night
Snow, mainly before 3am. Low around 28. Northeast wind 6 to 10 mph becoming northwest after midnight. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.
M.L.King Day
A slight chance of snow between 8am and 9am. Mostly sunny, with a high near 34. Southwest wind 10 to 18 mph. Chance of precipitation is 20%.
Monday Night
Partly cloudy, with a low around 22. West wind around 17 mph.
Tuesday
Mostly sunny, with a high near 27. West wind around 15 mph.
Tuesday Night
Mostly clear, with a low around 17. West wind 10 to 14 mph.
Wednesday
Mostly sunny, with a high near 39. Southwest wind 9 to 14 mph.
Wednesday Night
Mostly cloudy, with a low around 31. Southwest wind around 15 mph.
Thursday
A chance of rain after noon. Mostly cloudy, with a high near 39. Southwest wind 13 to 15 mph. Chance of precipitation is 30%.
Thursday Night
Partly cloudy, with a low around 22. Northwest wind 13 to 15 mph.
Friday
Mostly sunny, with a high near 32. West wind 11 to 13 mph.
Friday Night
Mostly cloudy, with a low around 24. West wind around 11 mph.
Saturday
A chance of snow. Partly sunny, with a high near 33. West wind 11 to 13 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 MA
 41.74°N 70.21°W (Elev. 30 ft)
Last Update:
1:13 pm EST Jan 17, 2026
Forecast Valid:
1am EST Jan 18, 2026-6pm EST Jan 24, 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