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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, October 2019 at 12:42 PM. These forecasts are provided by NOAA.

GALE WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH LATE

THURSDAY NIGHT

Tuesday - October 15

Sunny
Low: 44 ºF
High: 59 ºF

Marine forcast for Tuesday Afternoon
Winds from the North West. 10 to 15 knots with gusts up to 20 knots. Seas around 4 feet.
Marine forcast for Tuesday Night
Winds from the South East. 5 to 10 knots, diminishing to around 5 knots after midnight. Seas around 3 feet.

Wednesday - October 16

Rain
Low: 53 ºF
High: 59 ºF

Marine forcast for Wednesday
Winds from the South East. 5 to 10 knots, increasing to 10 to 15 knots with gusts up to 20 knots in the afternoon. Seas 3 to 4 feet.
Marine forcast for Wednesday Night
Winds from the South East. 20 to 25 knots with gusts up to 30 knots, increasing to 25 to 30 knots with gusts up to 40 knots after midnight. Seas around 6 feet, building to 9 feet after midnight. Rain. Patchy fog after midnight with visibility 1 nautical miles or less.

Thursday - October 17

Chance Rain
Low: 48 ºF
High: 58 ºF

Marine forcast for Thursday
Winds from the South West. 25 to 30 knots with gusts up to 45 knots. Seas around 10 feet. Patchy fog in the morning. A chance of rain in the morning with visibility 1 nautical miles or less.
Marine forcast for Thursday Night
Winds from the West. 20 to 25 knots with gusts up to 40 knots. Seas around 10 feet.

Friday - October 18

Partly Sunny
Low: 47 ºF
High: 58 ºF

Marine forcast for Friday
Winds from the North West. 20 to 25 knots, diminishing to 15 to 20 knots in the afternoon. Gusts up to 30 knots. Seas 8 to 9 feet.
Marine forcast for Friday Night
Winds from the North West. 15 to 20 knots, diminishing to 10 to 15 knots after midnight. Gusts up to 25 knots. Seas 5 to 6 feet.

Saturday - October 19

Mostly Sunny
Low: 50 ºF
High: 56 ºF

Marine forcast for Saturday
Winds from the North West. 10 to 15 knots with gusts up to 20 knots, becoming West 5 to 10 knots in the afternoon. Seas 3 to 4 feet.
Marine forcast for Saturday Night
Winds from the South West. 5 to 10 knots. Seas around 2 feet.

Sunday - October 20

Mostly Sunny
Low: 54 ºF
High: 60 ºF

Monday - October 21

Partly Sunny
Low: na
High: 61 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.