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Forecast

The following is the 7 day weather and marine forecast for the Chatham, MA area. This Information was last updated Tuesday, May 2019 at 11:11 AM. These forecasts are provided by NOAA.

SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY AFTERNOON

Tuesday - May 21

Becoming Sunny
Low: 48 ºF
High: 67 ºF

Marine forcast for Tuesday
Winds from the West. 15 to 20 knots, diminishing to 10 to 15 knots this afternoon. Gusts up to 30 knots. Seas around 4 feet.
Marine forcast for Tuesday Night
Winds from the North West. 15 to 20 knots, increasing to 20 to 25 knots after midnight. Gusts up to 35 knots. Seas 6 to 7 feet.

Wednesday - May 22

Mostly Sunny
Low: 49 ºF
High: 60 ºF

Marine forcast for Wednesday
Winds from the North. 20 to 25 knots, diminishing to 10 to 15 knots in the afternoon. Gusts up to 30 knots. Seas 6 to 7 feet.
Marine forcast for Wednesday Night
Winds from the North. Around 5 knots, becoming South West after midnight. Seas around 3 feet.

Thursday - May 23

Rain Showers Likely
Low: 53 ºF
High: 60 ºF

Marine forcast for Thursday
Winds from the South West. 5 to 10 knots, becoming South 10 to 15 knots with gusts up to 20 knots in the afternoon. Seas 2 to 3 feet.
Marine forcast for Thursday Night
Winds from the South. 10 to 15 knots with gusts up to 25 knots. Seas 4 to 5 feet. A chance of showers in the evening. Showers likely after midnight with visibility 1 to 3 nautical miles.

Friday - May 24

Chance Rain Showers
Low: 48 ºF
High: 60 ºF

Marine forcast for Friday
Winds from the West. 10 to 15 knots, becoming North in the afternoon. Gusts up to 25 knots. Seas around 5 feet. A chance of showers.
Marine forcast for Friday Night
Winds from the North East. 10 to 15 knots with gusts up to 25 knots. Seas around 6 feet.

Saturday - May 25

Chance Rain Showers
Low: 53 ºF
High: 59 ºF

Marine forcast for Saturday
Winds from the East. 5 to 10 knots, becoming South East with gusts up to 20 knots in the afternoon. Seas around 5 feet. A chance of showers in the afternoon.
Marine forcast for Saturday Night
Winds from the South. 10 to 15 knots with gusts up to 25 knots. Seas 4 to 5 feet. A chance of showers.

Sunday - May 26

Partly Sunny
Low: 54 ºF
High: 66 ºF

Monday - May 27

Chance Rain Showers
Low: na
High: 65 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.

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