Forecast Details for Mequon, WI

Recent Locations: Elgin, SC Lima, OH Mequon, WI

Overnight: A chance of flurries before 4am, then a slight chance of snow showers after 4am. Mostly cloudy, with a low around 18. Calm wind becoming north around 5 mph. Chance of precipitation is 20%.

Sunday: A slight chance of snow showers before 9am, then a chance of flurries between 9am and 11am. Partly sunny, with a high near 29. North wind around 5 mph becoming east in the afternoon. Chance of precipitation is 20%.

Sunday Night: Mostly clear, with a low around 20. East wind around 5 mph becoming calm.

Monday: Mostly sunny, with a high near 39. South wind 5 to 10 mph.

Monday Night: A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 32. Southeast wind around 5 mph becoming calm in the evening.

Tuesday: Rain likely, mainly before noon. Cloudy, with a high near 41. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

Tuesday Night: Mostly cloudy, with a low around 33. Northeast wind around 5 mph becoming calm.

Wednesday: A 40 percent chance of rain. Partly sunny, with a high near 43. East wind around 5 mph.

Wednesday Night: A 30 percent chance of rain. Mostly cloudy, with a low around 36.

Thursday: A 40 percent chance of rain. Mostly cloudy, with a high near 47.

Thursday Night: A 30 percent chance of rain. Mostly cloudy, with a low around 38.

Friday: Rain likely. Mostly cloudy, with a high near 59. Chance of precipitation is 60%.

Friday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 39.

Saturday: A 40 percent chance of rain. Mostly cloudy, with a high near 54.

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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

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North America Water Vapor (Moisture)

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Weather Topic: What are Contrails?

Home - Education - Cloud Types - 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

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