Forecast Details for Bryn Mawr, PA

Recent Locations: Bryn Mawr, PA

Overnight: A chance of showers, mainly before 3am. Mostly cloudy, with a low around 46. South wind around 8 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

Saturday: Mostly cloudy, with a high near 60. South wind 8 to 10 mph.

Saturday Night: Showers, mainly after 2am. Low around 48. Calm wind becoming east around 6 mph after midnight. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Sunday: Showers. High near 63. Southeast wind 10 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

Sunday Night: Showers. Low around 42. Southwest wind 14 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Monday: A chance of showers before 1pm. Partly sunny, with a high near 49. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

Monday Night: Partly cloudy, with a low around 36.

Tuesday: Showers, mainly after 1pm. High near 50. Chance of precipitation is 80%.

Tuesday Night: Showers. Low around 36. Chance of precipitation is 90%.

New Year's Day: Showers likely. Cloudy, with a high near 39. Chance of precipitation is 70%.

Wednesday Night: Snow showers likely. Mostly cloudy, with a low around 25. Chance of precipitation is 60%.

Thursday: A chance of snow showers. Mostly cloudy, with a high near 30. Breezy. Chance of precipitation is 30%.

Thursday Night: Mostly cloudy, with a low around 22.

Friday: Mostly cloudy, with a high near 29.

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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 Evaporation?

Home - Education - Precipitation - Evaporation

Next Topic: Fog

Evaporation is the process which returns water from the earth back to the atmosphere, and is another crucial process in the water cycle.

Evaporation is the transformation of liquid into gas, and it happens because molecules are excited by the application of energy and turn into vapor. In order for water to evaporate it has to be on the surface of a body of water.

Next Topic: Fog

Weather Topic: What are Fractus Clouds?

Home - Education - Cloud Types - Fractus Clouds

Fractus Clouds Next Topic: Freezing Rain

A fractus cloud (scud) is a fragmented, tattered cloud which has likely been sheared off of another cloud. They are accessory clouds, meaning they develop from parent clouds, and are named in a way which describes the original cloud which contained them.

Fractus clouds which have originated from cumulus clouds are referred to as cumulus fractus, while fractus clouds which have originated from stratus clouds are referred to as stratus fractus. Under certain conditions a fractus cloud might merge with another cloud, or develop into a cumulus cloud, but usually a fractus cloud seen by itself will dissipate rapidly.

They are often observed on the leading and trailing edges of storm clouds, and are a display of wind activity.

Next Topic: Freezing Rain