Forecast Details for Darby, PA

Recent Locations: Metter, GA Elkfork, KY Darby, PA

Tonight: Patchy drizzle before 11pm, then patchy drizzle with a slight chance of showers between 11pm and midnight, then patchy drizzle after midnight. Patchy fog. Otherwise, cloudy, with a low around 43. East wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

Friday: Widespread dense fog before noon. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 78. East wind 5 to 15 mph becoming southwest in the afternoon.

Friday Night: A slight chance of showers before 2am. Partly cloudy, with a low around 61. Southwest wind 5 to 10 mph. Chance of precipitation is 20%.

Saturday: A slight chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 83. Southwest wind 5 to 10 mph becoming southeast in the afternoon. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 59. East wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Sunday: Showers. High near 72. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

Sunday Night: Showers likely before 8pm. Partly cloudy, with a low around 42. Chance of precipitation is 60%.

Monday: Sunny, with a high near 56.

Monday Night: Partly cloudy, with a low around 40.

Tuesday: Mostly sunny, with a high near 54.

Tuesday Night: Mostly clear, with a low around 32.

Wednesday: Sunny, with a high near 53.

Wednesday Night: Mostly clear, with a low around 36.

Thursday: Sunny, with a high near 62.

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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

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North America Water Vapor (Moisture)

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Weather Topic: What are Cirrocumulus Clouds?

Home - Education - Cloud Types - Cirrocumulus Clouds

Next Topic: Cirrostratus Clouds

Cirrocumulus clouds form at high altitudes (usually around 5 km) and have distinguishing characteristics displayed in a fine layer of small cloud patches. These small cloud patches are sometimes referred to as "cloudlets" in relation to the whole cloud formation.

Cirrocumulus clouds are formed from ice crystals and water droplets. Often, the water droplets in the cloud freeze into ice crystals and the cloud becomes a cirrostratus cloud. Because of this common occurrence, cirrocumulus cloud formations generally pass rapidly.

Next Topic: Cirrostratus Clouds

Weather Topic: What are Cirrus Clouds?

Home - Education - Cloud Types - Cirrus Clouds

Next Topic: Condensation

Cirrus clouds are high-level clouds that occur above 20,000 feet and are composed mainly of ice crystals. They are thin and wispy in appearance.

What do they indicate?
They are often the first sign of an approaching storm.

Next Topic: Condensation