Forecast Details for Mattapan, MA

Recent Locations: Plattenville, LA Creston, CA Mattapan, MA

Tonight: Patchy drizzle before 3am, then scattered showers, mainly between 3am and 5am. Cloudy, with a low around 37. East wind 8 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Sunday: Patchy showers, then showers and possibly a thunderstorm after 1pm. High near 57. Southwest wind 8 to 13 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday Night: Showers likely, mainly before 7pm. Cloudy during the early evening, then gradual clearing, with a low around 38. West wind 9 to 13 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Monday: Mostly sunny, with a high near 52. West wind 9 to 13 mph.

Monday Night: A slight chance of rain after 1am, mixing with snow after 4am. Partly cloudy, with a low around 35. West wind around 6 mph becoming calm after midnight. Chance of precipitation is 20%.

Tuesday: A chance of rain and snow showers before 10am, then a chance of rain showers. Partly sunny, with a high near 48. Northwest wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

Tuesday Night: Partly cloudy, with a low around 27. Northwest wind around 7 mph.

Wednesday: Sunny, with a high near 48. Northwest wind around 6 mph becoming southeast in the afternoon.

Wednesday Night: Clear, with a low around 32. South wind around 7 mph.

Thursday: Sunny, with a high near 57. South wind 6 to 11 mph, with gusts as high as 22 mph.

Thursday Night: Partly cloudy, with a low around 42. South wind 7 to 9 mph.

Friday: Mostly sunny, with a high near 62. South wind 6 to 9 mph.

Friday Night: Partly cloudy, with a low around 42. South wind around 7 mph.

Saturday: Mostly sunny, with a high near 62. West wind 6 to 8 mph becoming southwest in the afternoon.

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North America Water Vapor (Moisture)

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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

Weather Topic: What are Stratus Clouds?

Home - Education - Cloud Types - Stratus Clouds

Next Topic: Wall Clouds

Stratus clouds are similar to altostratus clouds, but form at a lower altitude and are identified by their fog-like appearance, lacking the distinguishing features of most clouds.

Stratus clouds are wider than most clouds, and their base has a smooth, uniform look which is lighter in color than a nimbostratus cloud. The presence of a stratus cloud indicates the possibility of minor precipitation, such as drizzle, but heavier precipitation does not typically arrive in the form of a stratus cloud.

Next Topic: Wall Clouds