Severe Thunderstorms in the Ohio and Tennessee Valleys; Flash Flooding Possible in the Southwest

Scattered damaging winds, isolated severe hail, and a brief tornado or two are possible from the Upper Ohio to Tennessee Valleys during the late afternoon and evening. Across the Southwest, monsoonal moisture will continue to bring heavy rain and a threat for isolated to scattered flash flooding through Saturday. Read More >

Current conditions at

Hyannis, Barnstable Municipal-Boardman Airport (KHYA)

Lat: 41.67°NLon: 70.27°WElev: 49ft.

Mostly Cloudy

72°F

22°C

Humidity	94%
Wind Speed	SW 12 mph
Barometer	29.97 in (1015.0 mb)
Dewpoint	70°F (21°C)
Visibility	10.00 mi
Last update	6 Sep 7:56 pm EDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

South Dennis MA

Tonight
Low: 62 °F
Showers
Likely and
Patchy Fog
Sunday
High: 72 °F
Showers
Likely and
Patchy Fog
Sunday Night
Low: 57 °F
Chance
Showers and
Patchy Fog
Monday
High: 74 °F
Partly Sunny
Monday Night
Low: 57 °F
Mostly Cloudy
Tuesday
High: 73 °F
Partly Sunny
Tuesday Night
Low: 58 °F
Mostly Cloudy
then Chance
Showers
Wednesday
High: 72 °F
Showers
Likely
Wednesday Night
Low: 58 °F
Chance
Showers then
Mostly Cloudy

Detailed Forecast

Tonight

A chance of showers, then showers likely and possibly a thunderstorm after 4am. Patchy fog between 11pm and 5am. Otherwise, cloudy, with a low around 62. Southwest wind 6 to 11 mph becoming light west after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Sunday

Showers likely before 1pm, then showers likely and possibly a thunderstorm between 1pm and 2pm, then a chance of showers after 2pm. Patchy fog before 8am, then patchy fog after 9am. Otherwise, cloudy, with a high near 72. Calm wind becoming northwest 5 to 7 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday Night

A chance of showers, mainly between 1am and 3am. Patchy fog before 9pm. Otherwise, cloudy, with a low around 57. Northwest wind 6 to 8 mph. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch possible.

Monday

Partly sunny, with a high near 74. North wind 7 to 9 mph.

Monday Night

Mostly cloudy, with a low around 57. Light and variable wind.

Tuesday

Partly sunny, with a high near 73. East wind 7 to 10 mph.

Tuesday Night

A chance of showers after 3am. Cloudy, with a low around 58. East wind around 8 mph. Chance of precipitation is 30%.

Wednesday

Showers likely, mainly between 7am and 9am. Cloudy, with a high near 72. Northeast wind around 11 mph. Chance of precipitation is 60%.

Wednesday Night

A chance of showers before midnight. Cloudy, with a low around 58. North wind around 7 mph. Chance of precipitation is 40%.