Forecast Details for Boston, MA

Recent Locations: Boston, MA

Today: Showers. Patchy fog. High near 54. Northeast wind 9 to 15 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

Tonight: Showers, mainly after 1am. Patchy fog. Low around 48. East wind 9 to 11 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Tuesday: Showers likely, then showers and possibly a thunderstorm after noon. Patchy fog. High near 59. East wind 8 to 11 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

Tuesday Night: Showers and possibly a thunderstorm before 1am, then showers likely. Patchy fog before 11pm. Low around 57. South wind 5 to 8 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Wednesday: A chance of showers before 2pm, then a chance of showers and thunderstorms between 2pm and 3pm, then showers likely and possibly a thunderstorm after 3pm. Mostly cloudy, with a high near 69. South wind 5 to 7 mph. Chance of precipitation is 60%.

Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 55. South wind around 5 mph becoming light and variable in the evening. Chance of precipitation is 40%.

Thursday: A chance of showers after 1pm. Mostly sunny, with a high near 70. West wind 6 to 8 mph. Chance of precipitation is 30%.

Thursday Night: A chance of showers. Mostly cloudy, with a low around 47. North wind around 6 mph. Chance of precipitation is 40%.

Friday: A chance of showers. Mostly cloudy, with a high near 53. Northeast wind around 10 mph. Chance of precipitation is 40%.

Friday Night: A chance of showers. Mostly cloudy, with a low around 46. North wind around 6 mph. Chance of precipitation is 40%.

Saturday: A chance of showers. Partly sunny, with a high near 62. North wind 6 to 8 mph. Chance of precipitation is 30%.

Saturday Night: Partly cloudy, with a low around 49. West wind around 5 mph.

Sunday: Sunny, with a high near 73. 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 Cumulonimbus Clouds?

Home - Education - Cloud Types - Cumulonimbus Clouds

Cumulonimbus Clouds Next Topic: Cumulus Clouds

The final form taken by a growing cumulus cloud is the cumulonimbus cloud, which is very tall and dense. The tower of a cumulonimbus cloud can soar 23 km into the atmosphere, although most commonly they stop growing at an altitude of 6 km.

Even small cumulonimbus clouds appear very large in comparison to other cloud types. They can signal the approach of stormy weather, such as thunderstorms or blizzards.

Next Topic: Cumulus Clouds

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