Forecast Details for Cohasset, MA

Recent Locations: Clio, MI Henderson, IA Cohasset, MA

Overnight: Mostly cloudy, with a low around 37. South wind around 8 mph.

Wednesday: A chance of showers, mainly after 10am. Mostly cloudy, with a high near 48. South wind 9 to 11 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

Wednesday Night: A slight chance of showers. Patchy fog between 10pm and 2am. Otherwise, mostly cloudy, with a low around 41. South wind 5 to 7 mph. Chance of precipitation is 20%.

Thursday: A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 58. Northwest wind 6 to 10 mph. Chance of precipitation is 20%.

Thursday Night: Mostly clear, with a low around 39. Northwest wind 6 to 8 mph.

Friday: Sunny, with a high near 51. Northwest wind around 8 mph becoming northeast in the afternoon.

Friday Night: Partly cloudy, with a low around 38. East wind around 5 mph becoming light and variable.

Saturday: Mostly sunny, with a high near 51. Northeast wind around 8 mph.

Saturday Night: Mostly cloudy, with a low around 39. Southeast wind around 5 mph becoming light and variable in the evening.

Sunday: Mostly sunny, with a high near 54. North wind 5 to 8 mph becoming east in the afternoon.

Sunday Night: Mostly cloudy, with a low around 42. Northeast wind around 6 mph.

Monday: Partly sunny, with a high near 54. Northeast wind 7 to 9 mph.

Monday Night: Mostly cloudy, with a low around 43. East wind around 7 mph.

Tuesday: A chance of showers. Partly sunny, with a high near 55. East wind 7 to 10 mph. 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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National Weather Forecast for Tomorrow

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North America Water Vapor (Moisture)

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Weather Topic: What are Shelf Clouds?

Home - Education - Cloud Types - Shelf Clouds

Shelf Clouds Next Topic: Sleet

A shelf cloud is similar to a wall cloud, but forms at the front of a storm cloud, instead of at the rear, where wall clouds form.

A shelf cloud is caused by a series of events set into motion by the advancing storm; first, cool air settles along the ground where precipitation has just fallen. As the cool air is brought in, the warmer air is displaced, and rises above it, because it is less dense. When the warmer air reaches the bottom of the storm cloud, it begins to cool again, and the resulting condensation is a visible shelf cloud.

Next Topic: Sleet

Weather Topic: What is Snow?

Home - Education - Precipitation - Snow

Snow Next Topic: Stratocumulus Clouds

Snow is precipitation taking the form of ice crystals. Each ice crystal, or snowflake, has unique characteristics, but all of them grow in a hexagonal structure. Snowfall can last for sustained periods of time and result in significant buildup of snow on the ground.

On the earth's surface, snow starts out light and powdery, but as it begins to melt it tends to become more granular, producing small bits of ice which have the consistency of sand. After several cycles of melting and freezing, snow can become very dense and ice-like, commonly known as snow pack.

Next Topic: Stratocumulus Clouds