Forecast Details for South Harwich, MA

Recent Locations: South Harwich, MA  
Tonight: Rain. Patchy fog. Low around 37. North wind 11 to 15 mph, with gusts as high as 32 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Friday: Rain, mainly before 2pm. Patchy fog before 1pm. High near 48. Northwest wind 14 to 18 mph, with gusts as high as 43 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Friday Night: Mostly cloudy during the early evening, then gradual clearing, with a low around 35. Northwest wind 9 to 11 mph, with gusts as high as 36 mph.
Saturday: Sunny, with a high near 49. West wind 10 to 17 mph, with gusts as high as 36 mph.
Saturday Night: A slight chance of rain after 3am. Mostly cloudy, with a low around 38. West wind 7 to 10 mph. Chance of precipitation is 20%.
Sunday: A slight chance of rain before 9am. Partly sunny, with a high near 49. Northwest wind 9 to 11 mph. Chance of precipitation is 20%.
Sunday Night: Partly cloudy, with a low around 37. Northwest wind 10 to 15 mph.
Monday: Mostly sunny, with a high near 45. Northwest wind 8 to 11 mph becoming east in the afternoon.
Monday Night: Mostly cloudy, with a low around 37. South wind around 10 mph.
Tuesday: Rain likely, mainly after 11am. Mostly cloudy, with a high near 45. East wind 14 to 17 mph. Chance of precipitation is 60%.
Tuesday Night: Rain likely. Mostly cloudy, with a low around 36. Breezy, with an east wind 18 to 22 mph. Chance of precipitation is 60%.
Wednesday: A chance of rain. Mostly cloudy, with a high near 46. Breezy, with an east wind around 22 mph, with gusts as high as 33 mph. Chance of precipitation is 50%.
Wednesday Night: A chance of rain. Mostly cloudy, with a low around 35. Breezy, with a northwest wind 20 to 23 mph, with gusts as high as 34 mph. Chance of precipitation is 40%.
Thursday: A chance of rain. Partly sunny, with a high near 45. Breezy, with a northwest wind around 24 mph, with gusts as high as 36 mph. Chance of precipitation is 30%.

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Current U.S. National Radar--Current

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North America Water Vapor (Moisture)

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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

Weather Topic: What are Cirrostratus Clouds?

Home - Education - Cloud Types - Cirrostratus Clouds

Cirrostratus Clouds Next Topic: Cirrus Clouds

Cirrostratus clouds are high, thin clouds that form above 20,000 feet and are made mostly of ice crystals. They sometimes look like giant feathers, horse tails, or curls of hair in the sky. These clouds are pushed by the jet stream and can move at high speeds reaching 100 mph.

What do they indicate?
They indicate that a precipitation is likely within 24 hours.

Next Topic: Cirrus Clouds