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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 Thursday, December 2019 at 4:12 AM. These forecasts are provided by NOAA.

GALE WARNING IN EFFECT UNTIL 7 AM EST THIS MORNING

Thursday - December 12

Increasing Clouds
Low: 25 ºF
High: 35 ºF

Marine forcast for Thursday
Winds from the North West. 15 to 20 knots with gusts up to 30 knots, diminishing to 10 to 15 knots with gusts up to 20 knots this afternoon. Seas 4 to 6 feet.
Marine forcast for Thursday Night
Winds from the East. Around 5 knots, becoming South East after midnight. Seas 2 to 3 feet.

Friday - December 13

Mostly Cloudy
Low: 43 ºF
High: 48 ºF

Marine forcast for Friday
Winds from the South East. 10 to 15 knots with gusts up to 20 knots. Seas 3 to 5 feet.
Marine forcast for Friday Night
Winds from the South East. 10 to 15 knots, increasing to 15 to 20 knots after midnight. Gusts up to 25 knots. Seas 4 to 7 feet. Rain. Visibility 1 to 3 nautical miles.

Saturday - December 14

Rain
Low: 42 ºF
High: 54 ºF

Marine forcast for Saturday
Winds from the South. 15 to 20 knots with gusts up to 35 knots. Seas 6 to 9 feet. Rain. Visibility 1 to 3 nautical miles.
Marine forcast for Saturday Night
Winds from the South West. 15 to 20 knots, increasing to 20 to 25 knots after midnight. Gusts up to 30 knots. Seas 7 to 10 feet. Rain likely.

Sunday - December 15

Chance Rain
Low: 32 ºF
High: 47 ºF

Marine forcast for Sunday
Winds from the West. 25 to 30 knots with gusts up to 40 knots. Seas 8 to 11 feet.
Marine forcast for Sunday Night
Winds from the West. 25 to 30 knots with gusts up to 40 knots. Seas 7 to 10 feet.

Monday - December 16

Partly Sunny
Low: 31 ºF
High: 38 ºF

Marine forcast for Monday
Winds from the West. 20 to 25 knots with gusts up to 35 knots. Seas 6 to 9 feet.
Marine forcast for Monday Night
Winds from the West. 10 to 15 knots with gusts up to 25 knots. Seas 4 to 6 feet. A chance of rain and snow. Visibility 1 to 3 nautical miles.

Tuesday - December 17

Chance Rain/Snow
Low: 33 ºF
High: 44 ºF

Wednesday - December 18

Slight Chance Snow
Low: na
High: 40 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.