Forecast Details for Framingham, MA

Recent Locations: Framingham, MA

Today: A chance of showers and thunderstorms, mainly after 3pm. Some of the storms could be severe. Increasing clouds and hot, with a high near 92. Heat index values as high as 96. South wind 5 to 7 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight: A chance of showers and thunderstorms before 11pm, then a slight chance of showers after 3am. Some of the storms could be severe. Cloudy, with a low around 71. Southwest wind 5 to 7 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Thursday: Showers likely, with thunderstorms also possible after 11am. Mostly cloudy, with a high near 88. West wind around 6 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

Thursday Night: A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 11pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 67. Light and variable wind. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday: Sunny, with a high near 83. Northeast wind around 7 mph.

Friday Night: Mostly clear, with a low around 61. Light and variable wind.

Saturday: Sunny, with a high near 87. Calm wind becoming south around 5 mph in the afternoon.

Saturday Night: Mostly clear, with a low around 66. Southwest wind around 6 mph.

Sunday: Mostly sunny and hot, with a high near 92. Southwest wind 6 to 8 mph.

Sunday Night: A chance of showers between 8pm and 1am. Partly cloudy, with a low around 66. Southwest wind around 6 mph becoming northwest after midnight. Chance of precipitation is 30%.

Monday: Mostly sunny, with a high near 80. Northeast wind around 6 mph.

Monday Night: Partly cloudy, with a low around 58. East wind around 5 mph becoming light and variable in the evening.

Tuesday: Mostly sunny, with a high near 76. Northeast wind around 6 mph.

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Weather Topic: What are Contrails?

Home - Education - Cloud Types - Contrails

Next Topic: Cumulonimbus Clouds

A contrail is an artificial cloud, created by the passing of an aircraft.

Contrails form because water vapor in the exhaust of aircraft engines is suspended in the air under certain temperatures and humidity conditions. These contrails are called exhaust contrails.

Another type of contrail can form due to a temporary reduction in air pressure moving over the plane's surface, causing condensation. These are called aerodynamic contrails.

When you can see your breath on a cold day, it is also because of condensation. The reason contrails last longer than the condensation from your breath is because the water in contrails freezes into ice particles.

Next Topic: Cumulonimbus Clouds

Weather Topic: What are Cumulus Clouds?

Home - Education - Cloud Types - Cumulus Clouds

Next Topic: Drizzle

Cumulus clouds are fluffy and textured with rounded tops, and may have flat bottoms. The border of a cumulus cloud is clearly defined, and can have the appearance of cotton or cauliflower.

Cumulus clouds form at low altitudes (rarely above 2 km) but can grow very tall, becoming cumulus congestus and possibly the even taller cumulonimbus clouds. When cumulus clouds become taller, they have a greater chance of producing precipitation.

Next Topic: Drizzle