Forecast Details for Dennis Port, MA

Recent Locations: Dennis Port, MA  
Tonight: Patchy fog. Otherwise, mostly cloudy, with a low around 49. Southwest wind 7 to 9 mph.
Monday: Partly sunny, with a high near 57. North wind 10 to 15 mph, with gusts as high as 28 mph.
Monday Night: Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 45. Southwest wind around 5 mph becoming calm after midnight.
Tuesday: Mostly cloudy, with a high near 53. East wind 7 to 9 mph.
Tuesday Night: A chance of showers, mainly after 11pm. Mostly cloudy, with a low around 43. Southeast wind around 7 mph. Chance of precipitation is 40%.
Wednesday: Showers likely, mainly before 11am. Mostly cloudy, with a high near 49. East wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Wednesday Night: Mostly cloudy, with a low around 43. Northeast wind 7 to 9 mph.
Thursday: Mostly sunny, with a high near 56. Northeast wind 6 to 9 mph becoming southeast in the afternoon.
Thursday Night: Mostly cloudy, with a low around 45. Southwest wind 10 to 13 mph.
Friday: Partly sunny, with a high near 57. Southwest wind 11 to 14 mph.
Friday Night: Mostly cloudy, with a low around 46. South wind around 15 mph.
Saturday: Mostly cloudy, with a high near 55. Southeast wind around 13 mph.
Saturday Night: A chance of showers. Mostly cloudy, with a low around 46. South wind around 14 mph becoming southwest after midnight. Chance of precipitation is 30%.
Sunday: A chance of showers. Mostly cloudy, with a high near 55. North wind 11 to 14 mph becoming south in the afternoon. Chance of precipitation is 30%.

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Current U.S. National Radar--Current

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National Weather Forecast--Current

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North America Water Vapor (Moisture)

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Weather Topic: What are Wall Clouds?

Home - Education - Cloud Types - Wall Clouds

Wall Clouds Next Topic: Altocumulus Clouds

A wall cloud forms underneath the base of a cumulonimbus cloud, and can be a hotbed for deadly tornadoes.

Wall clouds are formed by air flowing into the cumulonimbus clouds, which can result in the wall cloud descending from the base of the cumulonimbus cloud, or rising fractus clouds which join to the base of the storm cloud as the wall cloud takes shape.

Wall clouds can be very large, and in the Northern Hemisphere they generally form at the southern edge of cumulonimbus clouds.

Next Topic: Altocumulus Clouds

Weather Topic: What are Altostratus Clouds?

Home - Education - Cloud Types - Altostratus Clouds

Altostratus Clouds Next Topic: Cirrocumulus Clouds

Altostratus clouds form at mid to high-level altitudes (between 2 and 7 km) and are created by a warm, stable air mass which causes water vapor to condense as it rise through the atmosphere. Usually altostratus clouds are featureless sheets characterized by a uniform color.

In some cases, wind punching through the cloud formation may give it a waved appearance, called altostratus undulatus. Altostratus clouds are commonly seen with other cloud formations accompanying them.

Next Topic: Cirrocumulus Clouds