Forecast Details for Boston, MA

Recent Locations: Boston, MA  
Tonight: Mostly cloudy, with a low around 41. North wind around 6 mph.
Friday: Mostly cloudy, with a high near 53. Northeast wind 6 to 10 mph.
Friday Night: A chance of rain, mainly after 1am. Cloudy, with a low around 49. East wind 8 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday: Rain. High near 61. Breezy, with an east wind 16 to 20 mph. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.
Saturday Night: Rain and possibly a thunderstorm before 11pm, then a chance of rain and thunderstorms between 11pm and midnight, then a chance of rain after midnight. Low around 54. East wind 5 to 13 mph becoming south after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 90%.
Sunday: A slight chance of rain. Partly sunny, with a high near 65. Southwest wind 5 to 9 mph. Chance of precipitation is 20%.
Sunday Night: Mostly clear, with a low around 49. West wind 6 to 8 mph.
Monday: Sunny, with a high near 63. West wind 9 to 11 mph.
Monday Night: Mostly clear, with a low around 44. West wind 6 to 8 mph.
Tuesday: Partly sunny, with a high near 57. West wind around 7 mph becoming southwest in the afternoon.
Tuesday Night: A chance of rain. Mostly cloudy, with a low around 43. Southwest wind around 6 mph. Chance of precipitation is 40%.
Wednesday: Partly sunny, with a high near 56. West wind 6 to 9 mph.
Wednesday Night: Mostly cloudy, with a low around 41. West wind around 6 mph.
Thursday: A chance of rain. Partly sunny, with a high near 53. West wind around 7 mph. Chance of precipitation is 30%.

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Current U.S. National Radar--Current

The Current National Weather Radar is shown below with a UTC Time (subtract 5 hours from UTC to get Eastern Time).

Current U.S. National Radar

National Weather Forecast--Current

The Current National Weather Forecast and National Weather Map are shown below.

Today's National Weather Map

National Weather Forecast for Tomorrow

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

Tomorrows National Weather Map

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.

North American Water Vapor Map

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