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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 Saturday, September 2021 at 11:42 AM. These forecasts are provided by NOAA.

SMALL CRAFT ADVISORY IN EFFECT FROM 3 PM EDT THIS AFTERNOON

THROUGH SUNDAY EVENING

Saturday - September 25

Rain Showers Likely
Low: 64 ºF
High: 75 ºF

Marine forcast for Saturday
Winds from the East. Around 5 knots, becoming South East this afternoon. Seas 3 to 5 feet. Patchy fog. A chance of showers. Visibility 1 nautical miles or less.
Marine forcast for Saturday Night
Winds from the South East. 5 to 10 knots. Seas 4 to 6 feet. Patchy fog. A chance of showers. Visibility 1 nautical miles or less.

Sunday - September 26

Chance Rain Showers
Low: 60 ºF
High: 75 ºF

Marine forcast for Sunday
Winds from the West. 5 to 10 knots, becoming North West 10 to 15 knots with gusts up to 20 knots in the afternoon. Seas 4 to 6 feet. Patchy fog. A chance of showers. Visibility 1 nautical miles or less.
Marine forcast for Sunday Night
Winds from the West. Around 15 knots with gusts up to 20 knots. Seas 4 to 6 feet.

Monday - September 27

Slight Chance Rain Showers
Low: 63 ºF
High: 74 ºF

Marine forcast for Monday
Winds from the West. 15 to 20 knots with gusts up to 25 knots. Seas 4 to 6 feet.

Tuesday - September 28

Chance Rain Showers
Low: 59 ºF
High: 73 ºF

Marine forcast for Tuesday
Winds from the West. 10 to 15 knots with gusts up to 20 knots, becoming North 5 to 10 knots. Seas 3 to 5 feet. A chance of showers.

Wednesday - September 29

Mostly Cloudy
Low: 57 ºF
High: 68 ºF

Marine forcast for Wednesday
Winds from the North East. 10 to 15 knots. Seas 3 to 5 feet.
Marine forcast for Wednesday Night
Winds from the North East. 10 to 15 knots with gusts up to 20 knots. Seas 4 to 6 feet. A chance of showers.

Thursday - September 30

Chance Rain Showers
Low: 57 ºF
High: 67 ºF

Friday - October 1

Chance Rain Showers
Low: na
High: 68 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.