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

Hyannis, Barnstable Municipal-Boardman Airport (KHYA)

Lat: 41.67°NLon: 70.27°WElev: 49ft.

A Few Clouds

45°F

7°C

Humidity 100%
Wind Speed N 5 mph
Barometer 30.00 in (1016.1 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 18 Apr 12:56 am EDT
Extended Forecast for

Dennis MA

  • Overnight

    Overnight: Areas of fog after 2am. Otherwise, cloudy, with a low around 45. Northeast wind around 8 mph.

    Low: 45 °F

    Areas Fog

  • Saturday

    Saturday: Areas of fog before 2pm, then areas of fog after 4pm. Otherwise, cloudy, with a high near 49. Northeast wind around 10 mph.

    High: 49 °F

    Areas Fog

  • Saturday Night

    Saturday Night: Showers likely, mainly after 4am. Areas of fog. Otherwise, cloudy, with a low around 43. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.

    Low: 43 °F

    Showers
    Likely and
    Areas Fog

  • Sunday

    Sunday: Rain likely before 4pm, then rain and snow likely. Some thunder is also possible. Patchy fog before 9am, then patchy fog after 2pm. Otherwise, cloudy, with a high near 55. South wind 7 to 11 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    High: 55 °F

    Rain/Snow
    Likely and
    Patchy Fog

  • Sunday Night

    Sunday Night: Rain and snow likely before 8pm, then a chance of rain between 8pm and 2am. Patchy fog before 8pm. Otherwise, mostly cloudy, with a low around 39. West wind 10 to 13 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 39 °F

    Rain/Snow
    Likely and
    Patchy Fog
    then Slight
    Chance Rain

  • Monday

    Monday: A slight chance of rain after 3pm. Mostly sunny, with a high near 44. Northwest wind 8 to 10 mph becoming northeast in the afternoon. Chance of precipitation is 20%.

    High: 44 °F

    Sunny then
    Slight Chance
    Rain

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 37. South wind 6 to 10 mph becoming north in the evening.

    Low: 37 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 47. North wind 7 to 10 mph.

    High: 47 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 39. Southwest wind 8 to 11 mph.

    Low: 39 °F

    Partly Cloudy

Detailed Forecast

Overnight
Areas of fog after 2am. Otherwise, cloudy, with a low around 45. Northeast wind around 8 mph.
Saturday
Areas of fog before 2pm, then areas of fog after 4pm. Otherwise, cloudy, with a high near 49. Northeast wind around 10 mph.
Saturday Night
Showers likely, mainly after 4am. Areas of fog. Otherwise, cloudy, with a low around 43. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Sunday
Rain likely before 4pm, then rain and snow likely. Some thunder is also possible. Patchy fog before 9am, then patchy fog after 2pm. Otherwise, cloudy, with a high near 55. South wind 7 to 11 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Sunday Night
Rain and snow likely before 8pm, then a chance of rain between 8pm and 2am. Patchy fog before 8pm. Otherwise, mostly cloudy, with a low around 39. West wind 10 to 13 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Monday
A slight chance of rain after 3pm. Mostly sunny, with a high near 44. Northwest wind 8 to 10 mph becoming northeast in the afternoon. Chance of precipitation is 20%.
Monday Night
Mostly cloudy, with a low around 37. South wind 6 to 10 mph becoming north in the evening.
Tuesday
Mostly sunny, with a high near 47. North wind 7 to 10 mph.
Tuesday Night
Partly cloudy, with a low around 39. Southwest wind 8 to 11 mph.
Wednesday
Partly sunny, with a high near 52. Southwest wind around 11 mph.
Wednesday Night
Partly cloudy, with a low around 42. Southwest wind around 8 mph becoming northwest after midnight.
Thursday
Mostly sunny, with a high near 53. North wind around 8 mph.
Thursday Night
Partly cloudy, with a low around 43. Southwest wind around 7 mph.
Friday
Partly sunny, with a high near 53. Northwest wind around 9 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Dennis MA
 41.74°N 70.21°W (Elev. 30 ft)
Last Update:
7:53 pm EDT Apr 17, 2026
Forecast Valid:
1am EDT Apr 18, 2026-6pm EDT Apr 24, 2026
 
Forecast Discussion
 
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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