Forecast Details for Dedham, MA

Recent Locations: Lakeville, CT Grover Hill, OH Dedham, MA

Tonight: Mostly clear, with a low around 68. South wind 9 to 13 mph.

Saturday: A chance of showers, mainly after 5pm. Mostly sunny, with a high near 86. South wind 10 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Saturday Night: Showers and thunderstorms likely before midnight, then a chance of showers between midnight and 3am, then a chance of showers and thunderstorms after 3am. Cloudy, with a low around 58. Southwest wind 5 to 10 mph becoming northwest after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday: Showers and possibly a thunderstorm before 1pm, then showers likely. High near 68. North wind around 6 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Sunday Night: A chance of showers, mainly before 8pm. Mostly cloudy, with a low around 49. West wind 3 to 5 mph. Chance of precipitation is 30%.

Monday: Sunny, with a high near 74. Northwest wind around 6 mph.

Monday Night: Mostly clear, with a low around 51. Light and variable wind.

Tuesday: Sunny, with a high near 71. East wind 3 to 7 mph.

Tuesday Night: Partly cloudy, with a low around 52. East wind around 5 mph becoming calm in the evening.

Wednesday: Partly sunny, with a high near 71. Northeast wind 3 to 6 mph.

Wednesday Night: Mostly cloudy, with a low around 54. Light and variable wind.

Thursday: Mostly sunny, with a high near 78. Northwest wind 3 to 6 mph.

Thursday Night: Partly cloudy, with a low around 51. North wind around 6 mph.

Friday: Sunny, with a high near 68. North wind around 7 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 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

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