Forecast Details for Boston, MA

Recent Locations: Boston, MA  
Tonight: Clear, with a low around 8. Wind chill values as low as -1. Northwest wind 6 to 9 mph.
Monday: Sunny, with a high near 26. Wind chill values as low as zero. Northwest wind around 5 mph becoming light and variable.
Monday Night: Snow showers likely, mainly after 5am. Increasing clouds, with a low around 20. Southwest wind 3 to 6 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Tuesday: Snow showers likely, mainly before 11am. Cloudy, then gradually becoming mostly sunny, with a high near 35. Southwest wind around 6 mph becoming north in the afternoon. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Tuesday Night: Partly cloudy, with a low around 20. North wind around 6 mph.
Christmas Day: Mostly sunny, with a high near 31. North wind around 7 mph.
Wednesday Night: Mostly cloudy, with a low around 24. Light northwest wind.
Thursday: Mostly sunny, with a high near 34. North wind around 6 mph.
Thursday Night: Partly cloudy, with a low around 24. Light north wind.
Friday: Mostly sunny, with a high near 37. North wind 3 to 6 mph.
Friday Night: Partly cloudy, with a low around 25. Light north wind.
Saturday: Mostly sunny, with a high near 39. North wind 3 to 6 mph.
Saturday Night: Mostly cloudy, with a low around 30. Light north wind.
Sunday: Mostly cloudy, with a high near 41. North wind 5 to 8 mph.

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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 is Evaporation?

Home - Education - Precipitation - Evaporation

Evaporation Next Topic: Fog

Evaporation is the process which returns water from the earth back to the atmosphere, and is another crucial process in the water cycle.

Evaporation is the transformation of liquid into gas, and it happens because molecules are excited by the application of energy and turn into vapor. In order for water to evaporate it has to be on the surface of a body of water.

Next Topic: Fog

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