Forecast Details for Pittsburgh, PA

Recent Locations: New York City, NY Pittsburgh, PA

Tonight: A chance of snow showers, mainly before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 3. Wind chill values as low as -14. Northwest wind 9 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 50%. Total nighttime snow accumulation of less than a half inch possible.

Saturday: Partly sunny and cold, with a high near 14. Wind chill values as low as -16. Northwest wind 14 to 17 mph, with gusts as high as 29 mph.

Saturday Night: Partly cloudy, with a low around -2. Wind chill values as low as -9. West wind 5 to 9 mph becoming light after midnight. Winds could gust as high as 20 mph.

Sunday: Partly sunny, with a high near 19. Wind chill values as low as -3. Calm wind becoming west around 6 mph in the morning.

Sunday Night: Mostly cloudy, with a low around 5. Calm wind.

Monday: Mostly cloudy, with a high near 31.

Monday Night: Mostly cloudy, with a low around 19.

Tuesday: Mostly sunny, with a high near 42.

Tuesday Night: A chance of rain. Mostly cloudy, with a low around 31. Chance of precipitation is 50%.

Wednesday: Rain likely, mainly before 1pm. Cloudy, with a high near 41. Chance of precipitation is 60%.

Wednesday Night: A chance of rain and snow. Cloudy, with a low around 23. Chance of precipitation is 40%.

Thursday: A chance of snow. Cloudy, with a high near 32. Chance of precipitation is 30%.

Thursday Night: Cloudy, with a low around 20.

Friday: Mostly cloudy, with a high near 33.

Want more detail? Get the Complete 7 Day and Night Detailed Forecast!

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).

National Weather Forecast--Current

The Current National Weather Forecast and National Weather Map are shown below.

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 Cumulus Clouds?

Home - Education - Cloud Types - Cumulus Clouds

Next Topic: Drizzle

Cumulus clouds are fluffy and textured with rounded tops, and may have flat bottoms. The border of a cumulus cloud is clearly defined, and can have the appearance of cotton or cauliflower.

Cumulus clouds form at low altitudes (rarely above 2 km) but can grow very tall, becoming cumulus congestus and possibly the even taller cumulonimbus clouds. When cumulus clouds become taller, they have a greater chance of producing precipitation.

Next Topic: Drizzle

Weather Topic: What is Evaporation?

Home - Education - Precipitation - Evaporation

Next Topic: Fog

Evaporation is the process which returns water from the earth back to the atmosphere, and is another crucial process in the water cycle.

Evaporation is the transformation of liquid into gas, and it happens because molecules are excited by the application of energy and turn into vapor. In order for water to evaporate it has to be on the surface of a body of water.

Next Topic: Fog