Forecast Details for Chilmark, MA

Recent Locations: Port Ludlow, WA Georgetown, GA Chilmark, MA

Tonight: A chance of showers, mainly before 2am. Patchy fog. Otherwise, cloudy, with a low around 37. East wind 7 to 14 mph. Chance of precipitation is 30%.

Friday: A slight chance of showers before 8am. Patchy fog before 2pm, then patchy fog after 5pm. Otherwise, cloudy, with a high near 51. Southeast wind 7 to 14 mph becoming southwest in the afternoon. Chance of precipitation is 20%.

Friday Night: Patchy fog after 7pm. Otherwise, mostly cloudy, with a low around 43. Southwest wind 15 to 17 mph.

Saturday: Patchy fog between 9am and 10am. Otherwise, partly sunny, with a high near 51. West wind 8 to 13 mph becoming northeast in the afternoon.

Saturday Night: A chance of showers, mainly after 3am. Patchy fog. Otherwise, cloudy, with a low around 38. East wind around 11 mph. Chance of precipitation is 30%.

Sunday: Showers. High near 53. Breezy, with a southwest wind 17 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 90%.

Sunday Night: Showers likely, mainly before 8pm. Mostly cloudy, with a low around 39. Southwest wind 10 to 16 mph becoming northwest after midnight. Chance of precipitation is 60%.

Monday: A chance of showers between 7am and 8am. Mostly sunny, with a high near 48. West wind 13 to 15 mph. Chance of precipitation is 30%.

Monday Night: Mostly clear, with a low around 37. West wind 8 to 11 mph.

Tuesday: Mostly sunny, with a high near 46. Northwest wind 7 to 10 mph becoming southwest in the afternoon.

Tuesday Night: Partly cloudy, with a low around 32. West wind 9 to 13 mph becoming north after midnight.

Wednesday: Sunny, with a high near 42. North wind 9 to 14 mph.

Wednesday Night: Mostly clear, with a low around 33. South wind around 8 mph.

Thursday: Sunny, with a high near 47. South wind 10 to 13 mph.

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Current U.S. National Radar--Current

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National Weather Forecast--Current

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National Weather Forecast for Tomorrow

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North America Water Vapor (Moisture)

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Weather Topic: What are Mammatus Clouds?

Home - Education - Cloud Types - Mammatus Clouds

Mammatus Clouds Next Topic: Nimbostratus Clouds

A mammatus cloud is a cloud with a unique feature which resembles a web of pouches hanging along the base of the cloud.

In the United States, mammatus clouds tend to form in the warmer months, commonly in the Midwest and eastern regions.

While they usually form at the bottom of a cumulonimbis cloud, they can also form under altostratus, altocumulus, stratocumulus, and cirrus clouds. Mammatus clouds warn that severe weather is close.

Next Topic: Nimbostratus Clouds

Weather Topic: What is Precipitation?

Home - Education - Precipitation - Precipitation

Next Topic: Rain

Precipitation can refer to many different forms of water that may fall from clouds. Precipitation occurs after a cloud has become saturated to the point where its water particles are more dense than the air below the cloud.

In most cases, precipitation will reach the ground, but it is not uncommon for precipitation to evaporate before it reaches the earth's surface. When precipitation evaporates before it contacts the ground it is called Virga. Graupel, hail, sleet, rain, drizzle, and snow are forms of precipitation, but fog and mist are not considered precipitation because the water vapor which constitutes them isn't dense enough to fall to the ground.

Next Topic: Rain