Forecast Details for Porterfield, WI

Recent Locations: Porterfield, WI  
Today: A chance of showers, with thunderstorms also possible after 4pm. Increasing clouds, with a high near 67. Light southeast wind becoming south southeast 6 to 11 mph in the morning. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight: Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and midnight. Cloudy, then gradually becoming partly cloudy, with a low around 42. Southwest wind 6 to 8 mph becoming north northwest after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday: Mostly sunny, with a high near 66. Northwest wind 6 to 8 mph becoming west southwest in the afternoon.
Sunday Night: Mostly clear, with a low around 40. South wind 5 to 7 mph becoming light and variable after midnight.
Monday: Sunny, with a high near 66. East southeast wind 5 to 10 mph.
Monday Night: Partly cloudy, with a low around 46.
Tuesday: Showers, with thunderstorms also possible after 1pm. High near 62. Chance of precipitation is 90%.
Tuesday Night: A chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 47.
Wednesday: A chance of showers after 1pm. Partly sunny, with a high near 67.
Wednesday Night: A chance of showers. Mostly cloudy, with a low around 45.
Thursday: A chance of showers. Partly sunny, with a high near 63.
Thursday Night: Mostly cloudy, with a low around 44.
Friday: Partly sunny, with a high near 61.

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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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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

Weather Topic: What are Cumulus Clouds?

Home - Education - Cloud Types - Cumulus Clouds

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