Forecast Details for Somerville, MA

Recent Locations: Carey, ID Seneca Castle, NY Somerville, MA

Today: Sunny, with a high near 27. Wind chill values as low as -6. Northwest wind around 6 mph becoming southwest in the afternoon.

Tonight: Clear, with a low around 7. Wind chill values as low as -1. South wind 3 to 6 mph.

Tuesday: A chance of snow between 10am and 1pm, then rain likely. Increasing clouds, with a high near 40. South wind 3 to 8 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

Tuesday Night: Rain. Low around 34. Light and variable wind becoming southwest around 5 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Wednesday: A chance of rain, mainly before 9am. Mostly sunny, with a high near 47. Light and variable wind. Chance of precipitation is 40%.

Wednesday Night: A chance of rain, mainly after 2am. Partly cloudy, with a low around 35. Calm wind. Chance of precipitation is 30%.

Thursday: A chance of rain. Partly sunny, with a high near 45. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 40%.

Thursday Night: Rain likely, mainly after 9pm. Cloudy, with a low around 36. Northeast wind 3 to 7 mph. Chance of precipitation is 70%.

Friday: Rain likely, mainly before 9am. Cloudy, with a high near 40. Northeast wind 7 to 9 mph. Chance of precipitation is 60%.

Friday Night: A chance of rain. Cloudy, with a low around 34. Northeast wind around 6 mph becoming calm after midnight. Chance of precipitation is 30%.

Saturday: A chance of rain. Cloudy, with a high near 51. Southwest wind 3 to 8 mph. Chance of precipitation is 30%.

Saturday Night: A chance of rain. Cloudy, with a low around 43. Southwest wind around 7 mph. Chance of precipitation is 50%.

Sunday: A chance of rain. Partly sunny, with a high near 57. Southwest wind around 7 mph. Chance of precipitation is 40%.

Want more detail? Get the Complete 7 Day and Night Detailed Forecast!

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).

National Weather Forecast--Current

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

National Weather Forecast for Tomorrow

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

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 is Snow?

Home - Education - Precipitation - Snow

Snow Next Topic: Stratocumulus Clouds

Snow is precipitation taking the form of ice crystals. Each ice crystal, or snowflake, has unique characteristics, but all of them grow in a hexagonal structure. Snowfall can last for sustained periods of time and result in significant buildup of snow on the ground.

On the earth's surface, snow starts out light and powdery, but as it begins to melt it tends to become more granular, producing small bits of ice which have the consistency of sand. After several cycles of melting and freezing, snow can become very dense and ice-like, commonly known as snow pack.

Next Topic: Stratocumulus Clouds

Weather Topic: What are Stratus Clouds?

Home - Education - Cloud Types - Stratus Clouds

Next Topic: Wall Clouds

Stratus clouds are similar to altostratus clouds, but form at a lower altitude and are identified by their fog-like appearance, lacking the distinguishing features of most clouds.

Stratus clouds are wider than most clouds, and their base has a smooth, uniform look which is lighter in color than a nimbostratus cloud. The presence of a stratus cloud indicates the possibility of minor precipitation, such as drizzle, but heavier precipitation does not typically arrive in the form of a stratus cloud.

Next Topic: Wall Clouds