Forecast Details for Flourtown, PA

Recent Locations: Greenwood Lake, NY Bradleyville, MO Flourtown, PA

Today: A chance of rain after 4pm. Patchy fog before noon. Otherwise, cloudy, with a high near 43. East wind 5 to 10 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

Tonight: Rain, mainly after 4am. Patchy fog between 9pm and 1am. Low around 37. East wind around 5 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Friday: Rain, mainly before 1pm. High near 45. East wind 5 to 10 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Friday Night: Mostly cloudy, with a low around 35. North wind around 5 mph becoming west after midnight.

Saturday: Mostly sunny, with a high near 48. West wind 5 to 10 mph.

Saturday Night: A slight chance of rain before 10pm, then a slight chance of rain and snow between 10pm and 1am, then a chance of snow after 1am. Mostly cloudy, with a low around 32. Chance of precipitation is 30%.

Sunday: Snow likely, mainly after 1pm. Cloudy, with a high near 39. Chance of precipitation is 60%.

Sunday Night: A chance of snow. Mostly cloudy, with a low around 29. Chance of precipitation is 50%.

Monday: Mostly cloudy, with a high near 38.

Monday Night: Partly cloudy, with a low around 25.

Tuesday: Sunny, with a high near 36.

Tuesday Night: Partly cloudy, with a low around 21.

Wednesday: Partly sunny, with a high near 41.

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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

Tomorrow National Weather Forecast and Tomorrow National Weather Map are show below.

North America Water Vapor (Moisture)

This map shows recent moisture content over North America. Bright and colored areas show high moisture (ie, clouds); brown indicates very little moisture present; black indicates no moisture.

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

Weather Topic: What is Snow?

Home - Education - Precipitation - Snow

Snow Next Topic: Stratocumulus Clouds

Snow is precipitation taking the form of ice crystals. Each ice crystal, or snowflake, has unique characteristics, but all of them grow in a hexagonal structure. Snowfall can last for sustained periods of time and result in significant buildup of snow on the ground.

On the earth's surface, snow starts out light and powdery, but as it begins to melt it tends to become more granular, producing small bits of ice which have the consistency of sand. After several cycles of melting and freezing, snow can become very dense and ice-like, commonly known as snow pack.

Next Topic: Stratocumulus Clouds