Forecast Details for West Mifflin, PA

Recent Locations: West Mifflin, PA  
This Afternoon: A slight chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 77. South wind around 11 mph. Chance of precipitation is 20%.
Tonight: A slight chance of showers and thunderstorms before 9pm. Mostly cloudy, with a low around 60. South wind around 7 mph. Chance of precipitation is 20%.
Sunday: Mostly sunny, with a high near 82. Southwest wind 7 to 11 mph.
Sunday Night: Mostly clear, with a low around 60. Southwest wind around 6 mph becoming calm in the evening.
Monday: Sunny, with a high near 87. Light southwest wind increasing to 5 to 9 mph in the morning.
Monday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 62. Chance of precipitation is 20%.
Tuesday: Showers likely before 2pm, then showers and possibly a thunderstorm between 2pm and 5pm, then showers after 5pm. High near 78. Chance of precipitation is 80%.
Tuesday Night: Showers before 8pm. Low around 56. Chance of precipitation is 80%.
Wednesday: Mostly sunny, with a high near 81.
Wednesday Night: Partly cloudy, with a low around 57.
Thursday: Mostly sunny, with a high near 85.
Thursday Night: A chance of showers. Partly cloudy, with a low around 61. Chance of precipitation is 30%.
Friday: Showers likely and possibly a thunderstorm. Partly sunny, with a high near 80. Chance of precipitation is 60%.

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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).

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 Cirrus Clouds?

Home - Education - Cloud Types - Cirrus Clouds

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

Weather Topic: What are Contrails?

Home - Education - Cloud Types - Contrails

Contrails Next Topic: Cumulonimbus Clouds

A contrail is an artificial cloud, created by the passing of an aircraft.

Contrails form because water vapor in the exhaust of aircraft engines is suspended in the air under certain temperatures and humidity conditions. These contrails are called exhaust contrails.

Another type of contrail can form due to a temporary reduction in air pressure moving over the plane's surface, causing condensation. These are called aerodynamic contrails.

When you can see your breath on a cold day, it is also because of condensation. The reason contrails last longer than the condensation from your breath is because the water in contrails freezes into ice particles.

Next Topic: Cumulonimbus Clouds