Forecast Details for Boston, MA

Recent Locations: Boston, MA

This Afternoon: Partly sunny, with a high near 67. East wind around 15 mph.

Tonight: Mostly cloudy, with a low around 50. East wind 5 to 7 mph.

Wednesday: A slight chance of showers before 3pm, then a slight chance of showers after 5pm. Mostly cloudy, with a high near 68. East wind 5 to 10 mph. Chance of precipitation is 20%.

Wednesday Night: A chance of showers before 2am, then a chance of showers and thunderstorms between 2am and 3am, then showers likely and possibly a thunderstorm after 3am. Patchy fog after 2am. Otherwise, cloudy, with a low around 57. Southeast wind around 7 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Thursday: Showers likely and possibly a thunderstorm before 7am, then a chance of showers and thunderstorms after 7am. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 70. Southeast wind 3 to 6 mph. Chance of precipitation is 60%.

Thursday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly cloudy, with a low around 60. Light south wind. Chance of precipitation is 20%.

Friday: A chance of showers after 3pm. Partly sunny, with a high near 77. Calm wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 30%.

Friday Night: A chance of showers. Mostly cloudy, with a low around 60. South wind 3 to 5 mph. Chance of precipitation is 50%.

Saturday: A chance of showers before 10am, then a chance of showers after 1pm. Partly sunny, with a high near 75. Light and variable wind becoming east 5 to 8 mph in the morning. Chance of precipitation is 40%.

Saturday Night: Showers likely, mainly between 11pm and midnight. Mostly cloudy, with a low around 57. East wind around 6 mph becoming northwest after midnight. Chance of precipitation is 60%.

Sunday: A chance of showers. Partly sunny, with a high near 75. Northwest wind 6 to 9 mph. Chance of precipitation is 40%.

Sunday Night: A chance of showers. Mostly cloudy, with a low around 56. Northwest wind around 6 mph. Chance of precipitation is 40%.

Monday: A chance of showers. Partly sunny, with a high near 68. North wind 7 to 9 mph. Chance of precipitation is 40%.

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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 Fractus Clouds?

Home - Education - Cloud Types - Fractus Clouds

Fractus Clouds Next Topic: Freezing Rain

A fractus cloud (scud) is a fragmented, tattered cloud which has likely been sheared off of another cloud. They are accessory clouds, meaning they develop from parent clouds, and are named in a way which describes the original cloud which contained them.

Fractus clouds which have originated from cumulus clouds are referred to as cumulus fractus, while fractus clouds which have originated from stratus clouds are referred to as stratus fractus. Under certain conditions a fractus cloud might merge with another cloud, or develop into a cumulus cloud, but usually a fractus cloud seen by itself will dissipate rapidly.

They are often observed on the leading and trailing edges of storm clouds, and are a display of wind activity.

Next Topic: Freezing Rain

Weather Topic: What is Graupel?

Home - Education - Precipitation - Graupel

Graupel Next Topic: Hail

Graupel is a form of precipitation that is created by atmospheric conditions which cause supercooled water droplets to contact snow crystals and freeze to their surface.

Sometimes known as soft hail or snow pellets, graupel is delicate and easily destroyed by touch. Whereas hail usually falls during severe weather, graupel doesn't require such conditions to form, and can form in mild precipitation similar to situations which produce snowfall.

Next Topic: Hail