Chatham Weather

41°41'N 69°57'W

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Current Conditions
Clear
61°F
Feels like: 61°F
Wind Chill: 61°F Ceiling: Unl
Heat Index: 61°F Visibility: 10mi
Dew Point: 58°F Wind: -
Humidity: 90% Direction: -
Pressure: 30.17" Gusts: -
Reported: 46 minutes 1 second ago
July 20, 2018 5:10 am EST
Location: 41.493N 70.279W or 19 nautical miles SW of search location of 41.677014822032N 69.921112060547W.
Wind Direction: W (260°)
Wind Speed: 6 knots
Wind Gust: 8 knots
Atmospheric Pressure: 30.16 in (1021.2 mb)
Air Temperature: 69°F (20.7°C)
Dew Point: 60°F (15.7°C)
Water Temperature: 74°F (23.2°C)
July 20, 2018 5:00 am EST
Location: 41.84N 70.329W or 21 nautical miles WNW of search location of 41.677014822032N 69.921112060547W.
Significant Wave Height: 0 ft
Average Period: 4.7 sec
Water Temperature: 70°F (21.1°C)
July 20, 2018 5:00 am EST
Location: 41.285N 70.096W or 25 nautical miles SSW of search location of 41.677014822032N 69.921112060547W.
Wind Direction: SE (140°)
Wind Speed: 1 knots
Wind Gust: 2 knots
Atmospheric Pressure: 30.16 in (1021.4 mb)
Pressure Tendency: +0.01 in (+0.4 mb)
Air Temperature: 62°F (16.7°C)
Water Temperature: 74°F (23.3°C)
Friday, July 20
5:23am / 8:09pm 1:54pm / 12:27am
Sunny
78°
60°
Day: Mainly sunny. High 78F. Winds ESE at 5 to 10 mph.
Night: A clear sky. Low near 60F. Winds light and variable.
Saturday, July 21
5:24am / 8:08pm 2:55pm / 12:58am
Mostly Cloudy
71°
64°
Day: A mix of clouds and sun early, then becoming cloudy later in the day. High 71F. Winds E at 5 to 10 mph.
Night: Cloudy with rain developing after midnight. Low 64F. Winds ESE at 10 to 15 mph. Chance of rain 80%.
Sunday, July 22
5:24am / 8:07pm 3:55pm / 1:31am
Thunderstorms
76°
70°
Thunderstorms. Highs in the mid 70s and lows in the low 70s.
Monday, July 23
5:25am / 8:06pm 4:53pm / 2:06am
AM Showers
78°
69°
Morning showers. Highs in the upper 70s and lows in the upper 60s.
Tuesday, July 24
5:26am / 8:05pm 5:47pm / 2:45am
Mostly Sunny
80°
69°
Mostly sunny. Highs in the low 80s and lows in the upper 60s.
Wednesday, July 25
5:27am / 8:04pm 6:37pm / 3:29am
Partly Cloudy
80°
70°
Partly cloudy. Highs in the low 80s and lows in the low 70s.
Thursday, July 26
5:28am / 8:04pm 7:23pm / 4:17am
Showers
79°
69°
Showers. Highs in the upper 70s and lows in the upper 60s.
Friday, July 27
5:29am / 8:03pm 8:04pm / 5:09am
AM Thunderstorms
79°
69°
Thunderstorms early. Highs in the upper 70s and lows in the upper 60s.
Saturday, July 28
5:30am / 8:02pm 8:40pm / 6:04am
Mostly Cloudy
80°
69°
Considerable cloudiness. Highs in the low 80s and lows in the upper 60s.
Sunday, July 29
5:31am / 8:01pm 9:13pm / 7:01am
Scattered Thunderstorms
79°
68°
Scattered thunderstorms possible. Highs in the upper 70s and lows in the upper 60s.
Wind Forecast
Day FridaySaturday
MPH 0 5 6 4 2 1 4 9 9 8 9 9
WNW
ESE
ESE
ESE
ESE
ENE
ENE
E
E
E
E
ESE
Radar

Home Harbor Resources

Marine Forecast
Synopsis: ANZ200-202015- 334 AM EDT Fri Jul 20 2018 .Synopsis for Massachusetts and Rhode Island coastal waters... High pressure shifting east over the weekend with a return of southerly flow into early next week, remaining breezy, ushering N warm, muggy air along with the likelihood of heavy rain and or thunderstorms, especially Saturday night into Sunday. Wet weather chances continue throughout the week along with sultry conditions. For information on possible hazardous weather beyond the 24-36 hour forecast period, please visit www.weather.gov/boston and follow the Current Hazards link above the map on the left. $$
Today
Variable winds less than 5 kt becoming ESE 5 to 9 kt in the morning. Sunny. Seas around 2 ft.
Tonight
E wind around 6 kt. Mostly clear. Seas around 2 ft.
Saturday
E wind around 9 kt. Partly sunny. Seas 1 to 2 ft.
Saturday Night
E wind 9 to 11 kt. Showers likely, with thunderstorms also possible after 1am. Some of the storms could produce gusty winds and heavy rain. Patchy fog after 1am. Seas around 2 ft.
Sunday
S wind 13 to 16 kt. Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Some of the storms could produce gusty winds and heavy rain. Patchy fog. Seas around 3 ft.
Sunday Night
S wind 11 to 13 kt. A chance of showers and thunderstorms. Patchy fog before 9pm. Seas 2 to 3 ft.
Monday
S wind around 13 kt. A chance of showers before noon. Seas 2 to 3 ft.
Monday Night
S wind around 11 kt. Mostly cloudy. Seas around 3 ft.
Tuesday
S wind 10 to 13 kt. Partly sunny. Seas around 3 ft.
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.

*Notices:

  1. This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
  2. The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.