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

Heavy Rainfall Across South Texas and the Northeast; Thunderstorms in the Southern Appalachians and Rio Grande Valley

Widespread showers and thunderstorms producing heavy rain may bring flooding to South Texas and parts of the Northeast U.S. tonight into Friday morning. Scattered severe thunderstorms with damaging gusts and large hail are expected over parts of the southern Appalachians, and Rio Grande Valley of Texas into Friday morning. Read More >

Current conditions at

Hyannis, Barnstable Municipal-Boardman Airport (KHYA)

Lat: 41.67°NLon: 70.27°WElev: 49ft.

Overcast

56°F

13°C

Humidity 93%
Wind Speed SE 5 mph
Barometer 30.03 in (1017.0 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 8 May 11:56 pm EDT
Extended Forecast for

Hyannis Port MA

  • Overnight

    Overnight: Patchy fog. Otherwise, mostly cloudy, with a low around 50. East wind around 6 mph.

    Low: 50 °F

    Patchy Fog

  • Friday

    Friday: Showers likely between noon and 3pm, then rain likely after 3pm. Patchy fog before 11am. Otherwise, cloudy, with a high near 55. East wind 8 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 55 °F

    Patchy Fog
    then Showers
    Likely

  • Friday Night

    Friday Night: Rain, with thunderstorms also possible after 9pm. Low around 50. East wind around 9 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 50 °F

    Rain

  • Saturday

    Saturday: Rain likely before 7am, then a chance of showers between 7am and 1pm. Partly sunny, with a high near 62. Southwest wind 11 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 62 °F

    Rain Likely
    then Slight
    Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 50. West wind 6 to 8 mph.

    Low: 50 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 63. Northwest wind 6 to 8 mph becoming northeast in the afternoon.

    High: 63 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 50. Light and variable wind becoming west around 5 mph after midnight.

    Low: 50 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 63. Southwest wind 6 to 10 mph.

    High: 63 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 53. Southwest wind around 8 mph.

    Low: 53 °F

    Partly Cloudy

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly cloudy, with a low around 50. East wind around 6 mph.
Friday
Showers likely between noon and 3pm, then rain likely after 3pm. Patchy fog before 11am. Otherwise, cloudy, with a high near 55. East wind 8 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Rain, with thunderstorms also possible after 9pm. Low around 50. East wind around 9 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
Rain likely before 7am, then a chance of showers between 7am and 1pm. Partly sunny, with a high near 62. Southwest wind 11 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Partly cloudy, with a low around 50. West wind 6 to 8 mph.
Sunday
Sunny, with a high near 63. Northwest wind 6 to 8 mph becoming northeast in the afternoon.
Sunday Night
Mostly clear, with a low around 50. Light and variable wind becoming west around 5 mph after midnight.
Monday
Sunny, with a high near 63. Southwest wind 6 to 10 mph.
Monday Night
Partly cloudy, with a low around 53. Southwest wind around 8 mph.
Tuesday
Partly sunny, with a high near 65. Southwest wind 7 to 11 mph.
Tuesday Night
Mostly cloudy, with a low around 55. Southwest wind around 7 mph.
Wednesday
A chance of showers. Mostly cloudy, with a high near 65. South wind 8 to 11 mph. Chance of precipitation is 30%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 55. South wind around 6 mph. Chance of precipitation is 30%.
Thursday
A chance of showers. Mostly cloudy, with a high near 64. South wind 6 to 9 mph. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Hyannis Port MA
 41.64°N 70.29°W (Elev. 10 ft)
Last Update:
9:59 pm EDT May 8, 2025
Forecast Valid:
12am EDT May 9, 2025-6pm EDT May 15, 2025
 
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