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.

Fog/Mist

46°F

8°C

Humidity 100%
Wind Speed Calm
Barometer 29.90 in (1012.4 mb)
Dewpoint 46°F (8°C)
Visibility 1.50 mi
Last update 19 Apr 2:56 am EDT
Extended Forecast for

Hyannis MA

  • Overnight

    Overnight: Patchy dense fog. Otherwise, cloudy, with a low around 43. South wind around 5 mph.

    Low: 43 °F

    Patchy Dense
    Fog

  • Sunday

    Sunday: Showers likely, then showers and possibly a thunderstorm after 2pm. Patchy dense fog. High near 57. South wind 8 to 14 mph becoming west in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 57 °F

    Showers and
    Patchy Dense
    Fog

  • Sunday Night

    Sunday Night: A chance of showers, mainly before 8pm. Patchy fog before 10pm. Otherwise, cloudy during the early evening, then gradual clearing, with a low around 37. West wind 7 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 37 °F

    Chance
    Showers and
    Patchy Fog
    then Mostly
    Clear

  • Monday

    Monday: A slight chance of rain after 1pm. Increasing clouds, with a high near 51. West wind around 7 mph. Chance of precipitation is 20%.

    High: 51 °F

    Sunny then
    Slight Chance
    Rain

  • Monday Night

    Monday Night: A slight chance of showers before midnight. Mostly cloudy, with a low around 36. West wind 5 to 9 mph becoming north after midnight. Chance of precipitation is 20%.

    Low: 36 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 46. North wind 7 to 9 mph.

    High: 46 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 37. Southwest wind 5 to 7 mph.

    Low: 37 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 50. South wind 7 to 11 mph.

    High: 50 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 41. South wind around 6 mph.

    Low: 41 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Patchy dense fog. Otherwise, cloudy, with a low around 43. South wind around 5 mph.
Sunday
Showers likely, then showers and possibly a thunderstorm after 2pm. Patchy dense fog. High near 57. South wind 8 to 14 mph becoming west in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A chance of showers, mainly before 8pm. Patchy fog before 10pm. Otherwise, cloudy during the early evening, then gradual clearing, with a low around 37. West wind 7 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Monday
A slight chance of rain after 1pm. Increasing clouds, with a high near 51. West wind around 7 mph. Chance of precipitation is 20%.
Monday Night
A slight chance of showers before midnight. Mostly cloudy, with a low around 36. West wind 5 to 9 mph becoming north after midnight. Chance of precipitation is 20%.
Tuesday
Sunny, with a high near 46. North wind 7 to 9 mph.
Tuesday Night
Partly cloudy, with a low around 37. Southwest wind 5 to 7 mph.
Wednesday
Partly sunny, with a high near 50. South wind 7 to 11 mph.
Wednesday Night
Mostly cloudy, with a low around 41. South wind around 6 mph.
Thursday
Mostly sunny, with a high near 55. Northwest wind 6 to 8 mph.
Thursday Night
Mostly cloudy, with a low around 41. North wind around 5 mph.
Friday
Mostly sunny, with a high near 52. North wind 6 to 8 mph.
Friday Night
Partly cloudy, with a low around 41. South wind around 5 mph becoming northwest after midnight.
Saturday
Partly sunny, with a high near 53. Northeast wind 6 to 9 mph becoming east in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Hyannis MA
 41.66°N 70.29°W (Elev. 39 ft)
Last Update:
2:30 am EDT Apr 19, 2026
Forecast Valid:
3am EDT Apr 19, 2026-6pm EDT Apr 25, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation