Flooding Risks from Tropical Moisture Across the Intermountain West and East Coast

Tropical moisture from Isaias and Rachel will impact portions of the Intermountain West and East Coast states. Flooding, gusty winds and even a threat for severe thunderstorms and tornadoes are possible. Meanwhile, record warmth will spread northward across the Mississippi Valley the next few days. Looking for snow, the first winter storm of the season is underway across the northern Rockies. Read More >

Current conditions at

Hyannis, Barnstable Municipal-Boardman Airport (KHYA)

Lat: 41.67°NLon: 70.27°WElev: 49ft.

Fair

59°F

15°C

Humidity 67%
Wind Speed SE 8 mph
Barometer 30.29 in (1025.9 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 11 Oct 1:56 pm EDT
Extended Forecast for

Yarmouth MA

  • This Afternoon

    This Afternoon: Cloudy, with a high near 62. Southeast wind around 9 mph.

    High: 62 °F

    Cloudy

  • Tonight

    Tonight: Showers, with thunderstorms also possible after 5am.  Patchy fog after 8pm. Low around 53. East wind 7 to 11 mph, with gusts as high as 22 mph.  Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    Low: 53 °F

    Showers and
    Patchy Fog

  • Columbus Day

    Columbus Day: A chance of showers and thunderstorms before 8am, then a slight chance of showers between 8am and 10am.  Patchy fog before 11am.  Otherwise, mostly cloudy, with a high near 63. North wind 10 to 13 mph.  Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 63 °F

    Chance
    Showers and
    Patchy Fog
    then Mostly
    Cloudy

  • Monday Night

    Monday Night: Increasing clouds, with a low around 52. Calm wind becoming northeast around 6 mph after midnight.

    Low: 52 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 65. East wind 7 to 9 mph becoming south in the afternoon.

    High: 65 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A chance of showers, with thunderstorms also possible after 2am.  Mostly cloudy, with a low around 56. Southwest wind 9 to 11 mph, with gusts as high as 25 mph.  Chance of precipitation is 40%.

    Low: 56 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers before 9am.  Mostly sunny, with a high near 68. Southwest wind 10 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 23 mph.  Chance of precipitation is 30%.

    High: 68 °F

    Chance
    Showers then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 47. Northwest wind around 10 mph, with gusts as high as 21 mph.

    Low: 47 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 59. Northwest wind around 14 mph, with gusts as high as 24 mph.

    High: 59 °F

    Sunny

Detailed Forecast

This Afternoon
Cloudy, with a high near 62. Southeast wind around 9 mph.
Tonight
Showers, with thunderstorms also possible after 5am. Patchy fog after 8pm. Low around 53. East wind 7 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Columbus Day
A chance of showers and thunderstorms before 8am, then a slight chance of showers between 8am and 10am. Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 63. North wind 10 to 13 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
Increasing clouds, with a low around 52. Calm wind becoming northeast around 6 mph after midnight.
Tuesday
Mostly cloudy, with a high near 65. East wind 7 to 9 mph becoming south in the afternoon.
Tuesday Night
A chance of showers, with thunderstorms also possible after 2am. Mostly cloudy, with a low around 56. Southwest wind 9 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Wednesday
A chance of showers before 9am. Mostly sunny, with a high near 68. Southwest wind 10 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 30%.
Wednesday Night
Partly cloudy, with a low around 47. Northwest wind around 10 mph, with gusts as high as 21 mph.
Thursday
Sunny, with a high near 59. Northwest wind around 14 mph, with gusts as high as 24 mph.
Thursday Night
Partly cloudy, with a low around 46. North wind around 7 mph.
Friday
A chance of showers. Partly sunny, with a high near 63. South wind 7 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.
Friday Night
Showers likely. Mostly cloudy, with a low around 49. South wind 11 to 17 mph, with gusts as high as 32 mph. Chance of precipitation is 60%.
Saturday
Showers likely. Mostly cloudy, with a high near 60. Northwest wind around 18 mph, with gusts as high as 33 mph. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
Yarmouth MA
 41.72°N 70.22°W (Elev. 49 ft)
8:57 am EDT Oct 11, 2026
2pm EDT Oct 11, 2026-6pm EDT Oct 17, 2026
 
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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