Forecast Details for Adamstown, PA

Recent Locations: Ewing, IL North Highlands, CA Adamstown, PA

Tonight: A chance of showers and thunderstorms. Mostly cloudy, with a low around 52. East wind 10 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Sunday: Showers, mainly before 2pm. High near 66. South wind around 14 mph becoming west in the morning. Winds could gust as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

Sunday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 38. Northwest wind 10 to 13 mph, with gusts as high as 22 mph.

Monday: Mostly sunny, with a high near 55. West wind 10 to 14 mph, with gusts as high as 23 mph.

Monday Night: Partly cloudy, with a low around 36. West wind around 7 mph.

Tuesday: Sunny, with a high near 47.

Tuesday Night: Mostly clear, with a low around 26.

Wednesday: Sunny, with a high near 51.

Wednesday Night: Mostly clear, with a low around 33.

Thursday: Mostly sunny, with a high near 62.

Thursday Night: Partly cloudy, with a low around 43.

Friday: Mostly sunny, with a high near 67.

Friday Night: Partly cloudy, with a low around 45.

Saturday: Mostly sunny, with a high near 69.

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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 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