Forecast Details for Pittsburgh, PA

Recent Locations: Greensboro, NC Baton Rouge, LA Pittsburgh, PA

Tonight: Snow likely, mainly before 11pm. Mostly cloudy, with a low around 29. Northwest wind 8 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of less than a half inch possible.

Monday: Snow likely, mainly before 7am. Mostly cloudy, with a high near 36. Northwest wind 13 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Monday Night: A slight chance of snow. Mostly cloudy, with a low around 18. Northwest wind 10 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

Tuesday: Partly sunny, with a high near 35. West wind around 9 mph becoming southwest in the afternoon.

Tuesday Night: Snow before 4am, then rain and snow. Low around 30. South wind 8 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

Wednesday: Rain, possibly mixed with snow, mainly before 7am. High near 44. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

Wednesday Night: A chance of rain and snow after 1am. Mostly cloudy, with a low around 28. Chance of precipitation is 40%.

Thursday: Rain and snow likely, becoming all rain after 1pm. Mostly cloudy, with a high near 49. Chance of precipitation is 70%.

Thursday Night: A chance of rain and snow before 1am. Mostly cloudy, with a low around 29. Chance of precipitation is 30%.

Friday: Mostly sunny, with a high near 46.

Friday Night: Mostly clear, with a low around 34.

Saturday: Sunny, with a high near 61.

Saturday Night: A chance of rain and snow. Mostly cloudy, with a low around 33. Chance of precipitation is 30%.

Sunday: Partly sunny, with a high near 46.

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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 Altostratus Clouds?

Home - Education - Cloud Types - Altostratus Clouds

Next Topic: Cirrocumulus Clouds

Altostratus clouds form at mid to high-level altitudes (between 2 and 7 km) and are created by a warm, stable air mass which causes water vapor to condense as it rise through the atmosphere. Usually altostratus clouds are featureless sheets characterized by a uniform color.

In some cases, wind punching through the cloud formation may give it a waved appearance, called altostratus undulatus. Altostratus clouds are commonly seen with other cloud formations accompanying them.

Next Topic: Cirrocumulus Clouds

Weather Topic: What are Cirrostratus Clouds?

Home - Education - Cloud Types - Cirrostratus Clouds

Next Topic: Cirrus Clouds

Cirrostratus clouds are high, thin clouds that form above 20,000 feet and are made mostly of ice crystals. They sometimes look like giant feathers, horse tails, or curls of hair in the sky. These clouds are pushed by the jet stream and can move at high speeds reaching 100 mph.

What do they indicate?
They indicate that a precipitation is likely within 24 hours.

Next Topic: Cirrus Clouds