Forecast Details for Whitehall, PA

Recent Locations: Whitehall, PA  
This Afternoon: Sunny, with a high near 49. West wind around 10 mph.
Tonight: Increasing clouds, with a low around 36. West wind 7 to 9 mph.
Friday: Partly sunny, then gradually becoming sunny, with a high near 54. West wind 9 to 17 mph.
Friday Night: A slight chance of showers after 2am. Increasing clouds, with a low around 38. Southwest wind 5 to 10 mph. Chance of precipitation is 20%.
Saturday: Showers, mainly after 8am. High near 56. South wind 6 to 10 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night: Showers likely, mainly before 2am. Mostly cloudy, with a low around 44. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday: A chance of showers before 2pm. Mostly cloudy, with a high near 59. Chance of precipitation is 30%.
Sunday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 46. Chance of precipitation is 60%.
Monday: Showers likely. Mostly cloudy, with a high near 62. Chance of precipitation is 70%.
Monday Night: Showers, with thunderstorms also possible after 8pm. Low around 52. Chance of precipitation is 90%.
Tuesday: Showers. High near 61. Chance of precipitation is 80%.
Tuesday Night: Showers likely. Mostly cloudy, with a low around 42. Chance of precipitation is 60%.
Wednesday: A chance of showers. Mostly cloudy, with a high near 52. Breezy. Chance of precipitation is 50%.

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Current U.S. National Radar--Current

The Current National Weather Radar is shown below with a UTC Time (subtract 5 hours from UTC to get Eastern Time).

Current U.S. National Radar

National Weather Forecast--Current

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Today's National Weather Map

National Weather Forecast for Tomorrow

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

Tomorrows National Weather Map

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.

North American Water Vapor Map

Weather Topic: What are Nimbostratus Clouds?

Home - Education - Cloud Types - Nimbostratus Clouds

Nimbostratus Clouds Next Topic: Precipitation

A nimbostratus cloud is similar to a stratus cloud in its formless, smooth appearance. However, a nimbostratus cloud is darker than a stratus cloud, because it is thicker.

Unlike a stratus cloud, a nimbostratus cloud typically brings with it the threat of moderate to heavy precipitation. In some cases, the precipitation may evaporate before reaching the ground, a phenomenon known as virga.

Next Topic: Precipitation

Weather Topic: What is Rain?

Home - Education - Precipitation - Rain

Rain Next Topic: Shelf Clouds

Precipitation in the form of water droplets is called rain. Rain generally has a tendency to fall with less intensity over a greater period of time, and when rainfall is more severe it is usually less sustained.

Rain is the most common form of precipitation and happens with greater frequency depending on the season and regional influences. Cities have been shown to have an observable effect on rainfall, due to an effect called the urban heat island. Compared to upwind, monthly rainfall between twenty and forty miles downwind of cities is 30% greater.

Next Topic: Shelf Clouds