A Sweltering Heat Wave For The West

A sweltering heat wave with record breaking temperatures is expected the rest of the week in much of the West, as a large dome of high pressure builds and expands across the region. Numerous excessive heat warnings and advisories are already in effect across Arizona, California and Nevada. Also, locally heavy rain is possible in the Lower Mississippi Valley and Southeast over the next few days. Read More >

Hazardous Weather Conditions

En Español

Current conditions at

Hyannis, Barnstable Municipal-Boardman Airport (KHYA)

Lat: 41.67°NLon: 70.27°WElev: 49ft.

Fog

15°C

59°F

Humidity	93%
Wind Speed	Calm
Barometer	1022.8 mb (30.20 in)
Dewpoint	14°C (57°F)
Visibility	0.40 km
Last update	26 May 5:56 am EDT

More Information:

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

Extended Forecast for

West Yarmouth MA

Dense Fog Advisory until May 26, 08:00am

Click here for hazard details and duration

...

Dense Fog Advisory until May 26, 08:00am

NOW until
8:00am Tue

Dense Fog Advisory
Today

Areas Dense
Fog then
Partly Sunny
High: 22 °C
Tonight

Patchy Fog
then Slight
Chance
Showers and
Patchy Fog
Low: 13 °C
Wednesday

Patchy Fog
then Partly
Sunny
High: 23 °C
Wednesday
Night

Slight Chance
Showers
Low: 14 °C
Thursday

Slight Chance
Showers then
Partly Sunny
High: 21 °C
Thursday
Night

Chance
Showers
Low: 15 °C
Friday

Chance
Showers
High: 20 °C
Friday
Night

Chance
Showers
Low: 15 °C

Detailed Forecast

Today

Areas of dense fog before 11am. Otherwise, mostly cloudy, with a high near 22. Light and variable wind becoming south 8 to 13 km/h in the morning.

Tonight

A slight chance of showers after 1am. Patchy fog. Otherwise, mostly cloudy, with a low around 13. Southwest wind 11 to 13 km/h. Chance of precipitation is 20%.

Wednesday

Patchy fog before 9am. Otherwise, partly sunny, with a high near 23. Southwest wind 13 to 21 km/h.

Wednesday Night

A slight chance of showers between 11pm and 5am. Mostly cloudy, with a low around 14. Southwest wind 16 to 18 km/h. Chance of precipitation is 20%.

Thursday

A slight chance of showers between 7am and 9am. Partly sunny, with a high near 21. Southwest wind 16 to 24 km/h. Chance of precipitation is 20%.

Thursday Night

A chance of showers, mainly after 1am. Mostly cloudy, with a low around 15. Southwest wind around 21 km/h. Chance of precipitation is 40%.

Friday

A chance of showers. Mostly cloudy, with a high near 20. Southwest wind 23 to 29 km/h. Chance of precipitation is 40%.

Friday Night

A chance of showers. Mostly cloudy, with a low around 15. Southwest wind 27 to 29 km/h. Chance of precipitation is 50%.

Saturday

A chance of showers. Mostly cloudy, with a high near 19. Southwest wind around 24 km/h. Chance of precipitation is 50%.

Saturday Night

A chance of showers before 5am. Mostly cloudy, with a low around 13. Southwest wind 14 to 21 km/h becoming northwest after midnight. Chance of precipitation is 40%.

Sunday

Mostly sunny, with a high near 18. North wind 16 to 18 km/h, with gusts as high as 35 km/h.

Sunday Night

Partly cloudy, with a low around 11. North wind 11 to 16 km/h increasing to 19 to 24 km/h after midnight.

Monday

Sunny, with a high near 17. North wind 21 to 23 km/h.