Forecast Details for Orrstown, PA

Recent Locations: Orrstown, PA  
This Afternoon: Showers likely, mainly before 3pm. Cloudy, with a high near 58. South wind 11 to 13 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Tonight: Mostly cloudy, with a low around 51. South wind 7 to 11 mph.
Sunday: Mostly sunny, with a high near 83. South wind 6 to 9 mph.
Sunday Night: Mostly clear, with a low around 58. West wind 3 to 6 mph.
Monday: A slight chance of showers after 2pm. Sunny, with a high near 86. West wind 3 to 7 mph. Chance of precipitation is 20%.
Monday Night: A slight chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 62. Chance of precipitation is 20%.
Tuesday: Showers likely and possibly a thunderstorm, mainly after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 60%.
Tuesday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 58. Chance of precipitation is 60%.
Wednesday: Sunny, with a high near 80.
Wednesday Night: Mostly clear, with a low around 55.
Thursday: Mostly sunny, with a high near 79.
Thursday Night: Partly cloudy, with a low around 57.
Friday: A chance of showers. Partly sunny, with a high near 78. Chance of precipitation is 50%.

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Current U.S. National Radar--Current

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Current U.S. National Radar

National Weather Forecast--Current

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Today's National Weather Map

National Weather Forecast for Tomorrow

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Tomorrows National Weather Map

North America Water Vapor (Moisture)

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North American Water Vapor Map

Weather Topic: What are Hole Punch Clouds?

Home - Education - Cloud Types - Hole Punch Clouds

Hole Punch Clouds Next Topic: Mammatus Clouds

A hole punch cloud is an unusual occurrence when a disk-shaped hole appears in a cirrostratus, cirrocumulus, or altocumulus cloud.

When part of the cloud forms ice crystals, water droplets in the surrounding area of the cloud evaporate. The effect of this process produces a large elliptical gap in the cloud. The hole punch cloud formation is rare, but it is not specific to any geographic area.

Other names which have been used to describe this phenomena include fallstreak hole, skypunch, and cloud hole.

Next Topic: Mammatus Clouds

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