Forecast Details for Boston, MA

Recent Locations: Jetersville, VA Isle, MN Boston, MA

Current Alerts for Boston, MA: Blizzard Warning

Today: Snow. The snow could be heavy at times. Areas of blowing snow before 4pm. High near 33. Windy, with a north wind 21 to 30 mph, with gusts as high as 60 mph. Chance of precipitation is 100%. Total daytime snow accumulation of 11 to 17 inches possible.

Tonight: Snow likely, mainly before 9pm. Cloudy, with a low around 21. Northwest wind 10 to 16 mph, with gusts as high as 33 mph. Chance of precipitation is 60%. New snow accumulation of around an inch possible.

Tuesday: Mostly sunny, with a high near 31. Northwest wind 7 to 10 mph, with gusts as high as 20 mph.

Tuesday Night: A chance of snow after 5am. Partly cloudy, with a low around 13. West wind 3 to 6 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

Wednesday: Rain and snow before 4pm, then a chance of rain. High near 39. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

Wednesday Night: A chance of rain before 9pm, then a slight chance of snow between 9pm and 10pm. Partly cloudy, with a low around 27. Southwest wind around 6 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

Thursday: A chance of rain after 4pm. Mostly sunny, with a high near 38. West wind 6 to 8 mph. Chance of precipitation is 30%.

Thursday Night: A chance of snow before 9pm, then rain likely, possibly mixed with snow. Mostly cloudy, with a low around 29. Southeast wind 3 to 6 mph. Chance of precipitation is 60%.

Friday: A chance of rain and snow before 9am, then a chance of rain between 9am and 1pm. Mostly cloudy, with a high near 41. Northwest wind around 7 mph. Chance of precipitation is 40%.

Friday Night: Mostly clear, with a low around 26. Southwest wind 3 to 5 mph.

Saturday: Mostly sunny, with a high near 45. Southwest wind 6 to 8 mph.

Saturday Night: Partly cloudy, with a low around 31. Southwest wind around 7 mph.

Sunday: Partly sunny, with a high near 44. West wind 6 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

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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 Cirrocumulus Clouds?

Home - Education - Cloud Types - Cirrocumulus Clouds

Next Topic: Cirrostratus Clouds

Cirrocumulus clouds form at high altitudes (usually around 5 km) and have distinguishing characteristics displayed in a fine layer of small cloud patches. These small cloud patches are sometimes referred to as "cloudlets" in relation to the whole cloud formation.

Cirrocumulus clouds are formed from ice crystals and water droplets. Often, the water droplets in the cloud freeze into ice crystals and the cloud becomes a cirrostratus cloud. Because of this common occurrence, cirrocumulus cloud formations generally pass rapidly.

Next Topic: Cirrostratus Clouds

Weather Topic: What are Cirrus Clouds?

Home - Education - Cloud Types - Cirrus Clouds

Next Topic: Condensation

Cirrus clouds are high-level clouds that occur above 20,000 feet and are composed mainly of ice crystals. They are thin and wispy in appearance.

What do they indicate?
They are often the first sign of an approaching storm.

Next Topic: Condensation