Forecast Details for Westford, MA

Recent Locations: Westford, MA

Tonight: A chance of rain and thunderstorms. Patchy fog between 11pm and 1am. Otherwise, mostly cloudy, with a temperature rising to around 50 by 5am. East wind 5 to 9 mph becoming light and variable after midnight. Chance of precipitation is 30%. New precipitation amounts between a quarter and half of an inch possible.

Wednesday: A chance of rain, mainly before 4pm. Mostly cloudy, with a high near 70. Southwest wind 5 to 9 mph becoming northwest in the afternoon. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

Wednesday Night: A chance of rain, mainly after 8pm. Mostly cloudy, with a low around 36. East wind around 7 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.

Thursday: A chance of rain. Cloudy, with a high near 40. East wind around 8 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

Thursday Night: A chance of rain. Cloudy, with a low around 35. East wind around 6 mph becoming calm in the evening. Chance of precipitation is 40%.

Friday: Mostly cloudy, with a high near 68. Calm wind becoming southwest 5 to 9 mph in the morning. Winds could gust as high as 21 mph.

Friday Night: Mostly cloudy, with a low around 53. Southwest wind around 9 mph.

Saturday: Partly sunny, with a high near 70. West wind 5 to 9 mph becoming east in the afternoon.

Saturday Night: A chance of rain. Mostly cloudy, with a low around 44. East wind around 6 mph. Chance of precipitation is 40%.

Sunday: Rain likely, mainly after 11am. Mostly cloudy, with a high near 68. Southwest wind 6 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.

Sunday Night: A chance of rain. Mostly cloudy, with a low around 39. West wind around 8 mph. Chance of precipitation is 50%.

Monday: Mostly sunny, with a high near 52. Northwest wind around 9 mph.

Monday Night: Partly cloudy, with a low around 32. Northwest wind around 5 mph.

Tuesday: Partly sunny, with a high near 53. Light and variable wind becoming southwest 5 to 7 mph in the morning.

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North America Water Vapor (Moisture)

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Weather Topic: What is Hail?

Home - Education - Precipitation - Hail

Hail Next Topic: Hole Punch Clouds

Hail is a form of precipitation which is recognized by large solid balls or clumps of ice. Hail is created by thunderstorm clouds with strong updrafts of wind. As the hailstones remain in the updraft, ice is deposited onto them until their weight becomes heavy enough for them to fall to the earth's surface.

Hail storms can cause significant damage to crops, aircrafts, and man-made structures, despite the fact that the duration is usually less than ten minutes.

Next Topic: Hole Punch Clouds

Weather Topic: What are Mammatus Clouds?

Home - Education - Cloud Types - Mammatus Clouds

Mammatus Clouds Next Topic: Nimbostratus Clouds

A mammatus cloud is a cloud with a unique feature which resembles a web of pouches hanging along the base of the cloud.

In the United States, mammatus clouds tend to form in the warmer months, commonly in the Midwest and eastern regions.

While they usually form at the bottom of a cumulonimbis cloud, they can also form under altostratus, altocumulus, stratocumulus, and cirrus clouds. Mammatus clouds warn that severe weather is close.

Next Topic: Nimbostratus Clouds