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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 Monday, September 2017 at 9:12 AM. These forecasts are provided by NOAA.

SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS IN EFFECT THROUGH

WEDNESDAY MORNING

Monday - September 25

Increasing Clouds
Low: 61 ºF
High: 73 ºF

Marine forcast for Monday
Winds from the East. Around 5 knots. Seas 4 to 7 feet. Areas of fog this morning with visibility 1 nautical miles or less.
Marine forcast for Monday Night
Winds from the South East. Around 5 knots. Seas 4 to 7 feet. Areas of fog. Visibility 1 nautical miles or less.

Tuesday - September 26

Chance Rain Showers
Low: 62 ºF
High: 71 ºF

Marine forcast for Tuesday
Winds from the South East. Around 5 knots. Seas 4 to 7 feet. Areas of fog. Visibility 1 nautical miles or less.
Marine forcast for Tuesday Night
Winds from the South East. Around 5 knots. Seas 5 to 8 feet. Patchy fog. A chance of showers. Visibility 1 to 3 nautical miles.

Wednesday - September 27

Chance Rain Showers
Low: 64 ºF
High: 74 ºF

Marine forcast for Wednesday
Winds from the South East. Around 5 knots, increasing to 5 to 10 knots in the afternoon. Seas 5 to 8 feet. Patchy fog. Visibility 1 to 3 nautical miles.
Marine forcast for Wednesday Night
Winds from the South. 5 to 10 knots. Seas 5 to 8 feet. Patchy fog. A chance of showers. Visibility 1 to 3 nautical miles.

Thursday - September 28

Chance Rain Showers
Low: 56 ºF
High: 72 ºF

Marine forcast for Thursday
Winds from the North West. 5 to 10 knots with gusts up to 20 knots. Seas 5 to 8 feet, except 9 to 11 feet South and East of nantucket. A chance of showers.
Marine forcast for Thursday Night
Winds from the North. 10 to 15 knots with gusts up to 30 knots. Seas 6 to 9 feet. A chance of showers.

Friday - September 29

Partly Sunny
Low: 54 ºF
High: 64 ºF

Marine forcast for Friday
Winds from the North. 10 to 15 knots with gusts up to 25 knots. Seas 5 to 8 feet.
Marine forcast for Friday Night
Winds from the North. 10 to 15 knots with gusts up to 20 knots. Seas 4 to 6 feet.

Saturday - September 30

Partly Sunny
Low: 53 ºF
High: 64 ºF

Sunday - October 1

Partly Sunny
Low: na
High: 63 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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