Forecast Details for Portersville, PA

Recent Locations: Portersville, PA  
Overnight: Partly cloudy, with a low around 61. South wind around 10 mph.
Sunday: Mostly sunny, with a high near 82. Southwest wind 11 to 14 mph.
Sunday Night: Mostly clear, with a low around 58. Southwest wind 6 to 8 mph.
Monday: Sunny, with a high near 85. Southwest wind 8 to 11 mph.
Monday Night: A chance of showers and thunderstorms, mainly after 2am. Partly cloudy, with a low around 60. South wind around 8 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8am. High near 74. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night: A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 52. Chance of precipitation is 30%.
Wednesday: Sunny, with a high near 76.
Wednesday Night: Partly cloudy, with a low around 54.
Thursday: Mostly sunny, with a high near 81.
Thursday Night: A chance of showers. Partly cloudy, with a low around 59. Chance of precipitation is 30%.
Friday: Showers likely. Partly sunny, with a high near 78. Chance of precipitation is 60%.
Friday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 57. Chance of precipitation is 60%.
Saturday: A chance of showers. Partly sunny, with a high near 71. Chance of precipitation is 50%.

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Current U.S. National Radar--Current

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Current U.S. National Radar

National Weather Forecast--Current

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Today's National Weather Map

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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