Forecast Details for Lancaster, PA

Recent Locations: Le Grand, CA Conneaut Lake, PA Lancaster, PA

Overnight: A chance of showers, mainly between 2am and 5am. Cloudy, with a low around 61. Northeast wind 7 to 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Thursday: A slight chance of showers before 9am. Cloudy, with a high near 75. Northeast wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

Thursday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 60. North wind 3 to 7 mph.

Friday: Sunny, with a high near 83. North wind 3 to 6 mph.

Friday Night: Clear, with a low around 60. Calm wind.

Saturday: Sunny, with a high near 85.

Saturday Night: A chance of showers after 2am. Partly cloudy, with a low around 66. Chance of precipitation is 30%.

Sunday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 84. Chance of precipitation is 70%.

Sunday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.

Monday: A chance of showers before 8am, then a chance of showers after 2pm. Mostly sunny, with a high near 83. Chance of precipitation is 30%.

Monday Night: A chance of showers. Mostly clear, with a low around 57. Chance of precipitation is 30%.

Tuesday: Sunny, with a high near 77.

Tuesday Night: Mostly clear, with a low around 55.

Wednesday: Mostly sunny, with a high near 77.

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Current U.S. National Radar--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 are Stratocumulus Clouds?

Home - Education - Cloud Types - Stratocumulus Clouds

Next Topic: Stratus Clouds

Stratocumulus clouds are similar to altocumulus clouds in their fluffy appearance, but have a slightly darker shade due to their additional mass.

A good way to distinguish the two cloud types is to hold your hand out and measure the size of an individual cloud; if it is the size of your thumb it is generally an altocumulus cloud, if it is the size of your hand it is generally a stratocumulus cloud.

It is uncommon for stratocumulus clouds to produce precipitation, but if they do it is usually a light rain or snow.

Next Topic: Stratus Clouds

Weather Topic: What are Wall Clouds?

Home - Education - Cloud Types - Wall Clouds

Wall Clouds Next Topic: Altocumulus Clouds

A wall cloud forms underneath the base of a cumulonimbus cloud, and can be a hotbed for deadly tornadoes.

Wall clouds are formed by air flowing into the cumulonimbus clouds, which can result in the wall cloud descending from the base of the cumulonimbus cloud, or rising fractus clouds which join to the base of the storm cloud as the wall cloud takes shape.

Wall clouds can be very large, and in the Northern Hemisphere they generally form at the southern edge of cumulonimbus clouds.

Next Topic: Altocumulus Clouds