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Forecast

The following is the 7 day weather and marine forecast for the Hyannis, MA area. This Information was last updated Saturday, January 2021 at 12:41 PM. These forecasts are provided by NOAA.

GALE WARNING IN EFFECT UNTIL 2 PM EST THIS AFTERNOON

Saturday - January 16

Rain Showers Likely
Low: 34 ºF
High: 50 ºF

Marine forcast for Saturday Afternoon
Winds from the South East. Around 30 knots, becoming South. Gusts up to 45 knots. Seas 9 to 14 feet. Rain, then showers. Visibility 1 nautical miles or less.
Marine forcast for Saturday Night
Winds from the South West. 15 to 20 knots, becoming West 20 to 25 knots after midnight. Gusts up to 35 knots. Seas 7 to 10 feet.

Sunday - January 17

Mostly Sunny
Low: 34 ºF
High: 42 ºF

Marine forcast for Sunday
Winds from the West. 25 to 30 knots with gusts up to 40 knots. Seas 7 to 10 feet, except 10 to 14 feet South and East of nantucket.
Marine forcast for Sunday Night
Winds from the West. 20 to 25 knots, diminishing to 15 to 20 knots after midnight. Gusts up to 35 knots. Seas 6 to 9 feet, except 8 to 13 feet South and East of nantucket.

Monday - January 18

Partly Sunny
Low: 27 ºF
High: 43 ºF

Marine forcast for Monday
Winds from the North West. 15 to 20 knots with gusts up to 25 knots. Seas 4 to 7 feet.

Tuesday - January 19

Partly Sunny
Low: 27 ºF
High: 38 ºF

Marine forcast for Tuesday
Winds from the West. 15 to 20 knots with gusts up to 25 knots. Seas 4 to 6 feet.
Marine forcast for Tuesday Night
Winds from the West. Around 15 knots with gusts up to 25 knots. Seas 3 to 5 feet. A chance of rain and snow showers. Visibility 1 to 3 nautical miles.

Wednesday - January 20

Partly Sunny
Low: 23 ºF
High: 35 ºF

Marine forcast for Wednesday
Winds from the North West. 15 to 20 knots with gusts up to 25 knots. Seas 4 to 7 feet. A chance of snow showers. Visibility 1 to 3 nautical miles.
Marine forcast for Wednesday Night
Winds from the North West. 15 to 20 knots with gusts up to 25 knots. Seas 4 to 7 feet.

Thursday - January 21

Chance Snow Showers
Low: 30 ºF
High: 38 ºF

Friday - January 22

Chance Rain Showers
Low: na
High: 39 ºF

Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height.