Forecast Details for Wellesley, MA

Recent Locations: Badger, SD Mokena, IL Wellesley, MA

Today: Sunny, with a high near 50. Light and variable wind becoming south around 6 mph in the afternoon.

Tonight: Mostly cloudy, with a low around 35. South wind around 8 mph.

Wednesday: Rain likely, mainly between 8am and 4pm. Cloudy, with a high near 46. South wind around 9 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

Wednesday Night: A chance of rain before 9pm, then a slight chance of rain after 2am. Mostly cloudy, with a low around 40. Southeast wind around 6 mph becoming calm in the evening. Chance of precipitation is 30%.

Thursday: A slight chance of rain before 7am, then a slight chance of showers after 1pm. Partly sunny, with a high near 57. Light west wind becoming northwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 20%.

Thursday Night: Partly cloudy, with a low around 39. Northwest wind 3 to 6 mph.

Friday: Mostly sunny, with a high near 57. Northwest wind around 7 mph.

Friday Night: Partly cloudy, with a low around 36. East wind around 5 mph becoming calm in the evening.

Saturday: Mostly sunny, with a high near 57. East wind 3 to 7 mph.

Saturday Night: Mostly cloudy, with a low around 39. Southeast wind around 5 mph becoming calm in the evening.

Sunday: Partly sunny, with a high near 58. East wind 3 to 7 mph.

Sunday Night: Mostly cloudy, with a low around 39. East wind around 5 mph becoming calm in the evening.

Monday: Partly sunny, with a high near 61. East wind 3 to 8 mph.

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Current U.S. National Radar--Current

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National Weather Forecast--Current

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National Weather Forecast for Tomorrow

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North America Water Vapor (Moisture)

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Weather Topic: What are Cirrus Clouds?

Home - Education - Cloud Types - Cirrus Clouds

Next Topic: Condensation

Cirrus clouds are high-level clouds that occur above 20,000 feet and are composed mainly of ice crystals. They are thin and wispy in appearance.

What do they indicate?
They are often the first sign of an approaching storm.

Next Topic: Condensation

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