Forecast Details for Boston, MA

Recent Locations: Nellysford, VA Long Beach, CA Boston, MA

Current Alerts for Boston, MA: Winter Weather Advisory

Tonight: Snow, mainly after 4am. Low around 22. Calm wind. Chance of precipitation is 100%. Little or no snow accumulation expected.

Saturday: Snow. High near 29. Light north wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

Saturday Night: A chance of snow, mainly before 7pm. Partly cloudy, with a low around 4. Wind chill values as low as -14. Northwest wind 14 to 16 mph, with gusts as high as 33 mph. Chance of precipitation is 30%. New snow accumulation of less than one inch possible.

Sunday: Mostly sunny, with a high near 17. Wind chill values as low as -14. Northwest wind around 14 mph, with gusts as high as 30 mph.

Sunday Night: Mostly clear, with a low around 4. Northwest wind 8 to 11 mph, with gusts as high as 25 mph.

Monday: Sunny, with a high near 26. Northwest wind 8 to 10 mph.

Monday Night: Partly cloudy, with a low around 10. Northwest wind around 6 mph.

Tuesday: Sunny, with a high near 31. Northwest wind around 7 mph.

Tuesday Night: Partly cloudy, with a low around 15. Northwest wind 3 to 5 mph.

Wednesday: A chance of snow after 2pm. Mostly cloudy, with a high near 33. Light and variable wind becoming north around 6 mph in the morning. Chance of precipitation is 30%.

Wednesday Night: A chance of snow. Mostly cloudy, with a low around 23. Northwest wind 3 to 6 mph. Chance of precipitation is 40%.

Thursday: A chance of snow. Mostly cloudy, with a high near 34. Northwest wind 6 to 9 mph. Chance of precipitation is 40%.

Thursday Night: A chance of snow. Mostly cloudy, with a low around 19. West wind around 7 mph. Chance of precipitation is 30%.

Friday: Mostly cloudy, with a high near 33. West wind 7 to 9 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

Tomorrow National Weather Forecast and Tomorrow National Weather Map are show below.

North America Water Vapor (Moisture)

This map shows recent moisture content over North America. Bright and colored areas show high moisture (ie, clouds); brown indicates very little moisture present; black indicates no moisture.

Weather Topic: What are Stratocumulus Clouds?

Home - Education - Cloud Types - Stratocumulus Clouds

Next Topic: Stratus Clouds

Stratocumulus clouds are similar to altocumulus clouds in their fluffy appearance, but have a slightly darker shade due to their additional mass.

A good way to distinguish the two cloud types is to hold your hand out and measure the size of an individual cloud; if it is the size of your thumb it is generally an altocumulus cloud, if it is the size of your hand it is generally a stratocumulus cloud.

It is uncommon for stratocumulus clouds to produce precipitation, but if they do it is usually a light rain or snow.

Next Topic: Stratus Clouds

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