Forecast Details for Boston, MA

Recent Locations: Toronto Pearson International Airport, 08 Denver, CO Boston, MA

Overnight: Patchy smoke. Mostly cloudy, with a low around 53. Southwest wind around 8 mph.

Friday: Widespread smoke before 11am. Mostly cloudy, with a high near 72. Light and variable wind becoming east 5 to 10 mph in the afternoon.

Friday Night: A chance of rain before 2am, then a chance of rain after 3am. Cloudy, with a low around 55. Southeast wind 5 to 9 mph becoming south in the evening. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch possible.

Saturday: Rain before 9am, then showers between 9am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 66. South wind 10 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Saturday Night: Showers likely, mainly before 9pm. Mostly cloudy, with a low around 49. West wind around 10 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.

Sunday: A chance of showers, mainly after 4pm. Mostly sunny, with a high near 57. Northwest wind 10 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.

Sunday Night: Partly cloudy, with a low around 48. Northwest wind around 9 mph, with gusts as high as 21 mph.

Monday: Sunny, with a high near 71. Northwest wind around 9 mph.

Monday Night: Mostly clear, with a low around 50. West wind around 5 mph.

Tuesday: Mostly sunny, with a high near 77. Southwest wind 6 to 10 mph, with gusts as high as 20 mph.

Tuesday Night: Mostly cloudy, with a low around 61. Southwest wind around 10 mph, with gusts as high as 20 mph.

Wednesday: Partly sunny, with a high near 77. Southwest wind 9 to 13 mph.

Wednesday Night: Partly cloudy, with a low around 47. Northwest wind 6 to 8 mph.

Thursday: Mostly sunny, with a high near 63. North wind around 8 mph becoming southeast in the afternoon.

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North America Water Vapor (Moisture)

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Weather Topic: What are Altocumulus Clouds?

Home - Education - Cloud Types - Altocumulus Clouds

Next Topic: Altostratus Clouds

Similar to cirrocumulus clouds, altocumulus clouds are characterized by cloud patches. They are distinguished by larger cloudlets than cirrocumulus clouds but are still smaller than stratocumulus clouds.

Altocumulus clouds most commonly form in middle altitudes (between 2 and 5 km) and may resemble, at times, the shape of a flying saucer. These uncommon formations, called altocumulus lenticularis, are created by uplift in the atmosphere and are most often seen in close proximity to mountains.

Next Topic: Altostratus Clouds

Weather Topic: What are Cirrocumulus Clouds?

Home - Education - Cloud Types - Cirrocumulus Clouds

Next Topic: Cirrostratus Clouds

Cirrocumulus clouds form at high altitudes (usually around 5 km) and have distinguishing characteristics displayed in a fine layer of small cloud patches. These small cloud patches are sometimes referred to as "cloudlets" in relation to the whole cloud formation.

Cirrocumulus clouds are formed from ice crystals and water droplets. Often, the water droplets in the cloud freeze into ice crystals and the cloud becomes a cirrostratus cloud. Because of this common occurrence, cirrocumulus cloud formations generally pass rapidly.

Next Topic: Cirrostratus Clouds