Forecast Details for Boston, MA

Your Recent Locations:  Boston, MA  
Tonight: Increasing clouds, with a low around 36. Calm wind.
Monday: A chance of rain and snow showers before noon, then a chance of rain. Patchy fog after 10am. Otherwise, cloudy, with a high near 40. Calm wind becoming east around 6 mph in the afternoon. Chance of precipitation is 40%. Little or no snow accumulation expected.
Monday Night: Rain likely, mainly before 9pm. Patchy fog before 2am. Otherwise, cloudy, with a low around 38. East wind 5 to 7 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday: Rain and possibly a thunderstorm. High near 55. South wind 7 to 17 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday Night: A chance of rain before 7pm, then a chance of showers between 7pm and 10pm. Partly cloudy, with a low around 38. West wind 13 to 15 mph. Chance of precipitation is 30%.
Wednesday: Sunny, with a high near 40.
Wednesday Night: Partly cloudy, with a low around 21.
Thursday: Mostly sunny, with a high near 29.
Thursday Night: Mostly clear, with a low around 15.
Friday: Sunny, with a high near 32.
Friday Night: Mostly clear, with a low around 23.
Saturday: Mostly sunny, with a high near 44.
Saturday Night: Mostly cloudy, with a low around 38.
Sunday: A chance of showers. Mostly cloudy, with a high near 55. Chance of precipitation is 50%.

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Current U.S. National Radar--Current

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Weather Topic: What are Wall Clouds?

Home - Education - Cloud Types - Wall Clouds

wall clouds Next Topic: Condensation

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: Condensation

Weather Topic: What is Drizzle?

Home - Education - Precipitation - Drizzle

drizzle Next Topic: Evaporation

Drizzle is precipitation in the form of water droplets which are smaller than raindrops.

Drizzle is characterized by fine, gently falling droplets and typically does not impact human habitation in a negative way. The exception to this is freezing drizzle, a condition where drizzle freezes immediately upon reaching earth's surface. Freezing drizzle is still less dangerous than freezing rain, but can potentially result in hazardous road conditions.

Next Topic: Evaporation