Forecast Details for Cornwall, CT

Recent Locations: Cleveland, SC Marshall, MI Cornwall, CT

Tonight: A chance of showers, mainly between 3am and 5am. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 36. Southeast wind around 6 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Friday: Patchy fog before 10am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 64. South wind 5 to 11 mph, with gusts as high as 26 mph.

Friday Night: Mostly cloudy, with a low around 51. Southwest wind 5 to 7 mph, with gusts as high as 21 mph.

Saturday: A chance of showers, mainly after 5pm. Partly sunny, with a high near 67. Calm wind becoming southeast around 6 mph in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Saturday Night: Showers likely, mainly between 8pm and 2am. Cloudy, with a low around 42. Southeast wind 5 to 7 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Sunday: Showers, mainly after 8am. High near 59. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

Sunday Night: Showers likely before 8pm. Mostly cloudy, with a low around 34. Chance of precipitation is 60%.

Monday: Mostly sunny, with a high near 48.

Monday Night: Mostly clear, with a low around 30.

Tuesday: A chance of snow showers after 2pm. Partly sunny, with a high near 46. Chance of precipitation is 30%.

Tuesday Night: A chance of snow showers. Mostly clear, with a low around 25. Chance of precipitation is 30%.

Wednesday: Sunny, with a high near 47.

Wednesday Night: Mostly clear, with a low around 28.

Thursday: Mostly sunny, with a high near 56.

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Current U.S. National Radar--Current

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North America Water Vapor (Moisture)

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Weather Topic: What is Precipitation?

Home - Education - Precipitation - Precipitation

Next Topic: Rain

Precipitation can refer to many different forms of water that may fall from clouds. Precipitation occurs after a cloud has become saturated to the point where its water particles are more dense than the air below the cloud.

In most cases, precipitation will reach the ground, but it is not uncommon for precipitation to evaporate before it reaches the earth's surface. When precipitation evaporates before it contacts the ground it is called Virga. Graupel, hail, sleet, rain, drizzle, and snow are forms of precipitation, but fog and mist are not considered precipitation because the water vapor which constitutes them isn't dense enough to fall to the ground.

Next Topic: Rain

Weather Topic: What are Shelf Clouds?

Home - Education - Cloud Types - Shelf Clouds

Shelf Clouds Next Topic: Sleet

A shelf cloud is similar to a wall cloud, but forms at the front of a storm cloud, instead of at the rear, where wall clouds form.

A shelf cloud is caused by a series of events set into motion by the advancing storm; first, cool air settles along the ground where precipitation has just fallen. As the cool air is brought in, the warmer air is displaced, and rises above it, because it is less dense. When the warmer air reaches the bottom of the storm cloud, it begins to cool again, and the resulting condensation is a visible shelf cloud.

Next Topic: Sleet