Forecast Details for Union, ME

Recent Locations: Litchfield, CA Mills River, NC Union, ME

Current Alerts for Union, ME: Beach Hazards Statement

Tonight: Widespread haze before midnight. Mostly clear, with a low around 58. South wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 20 mph.

Monday: Widespread haze after 9am. Sunny, with a high near 87. Calm wind becoming west around 5 mph in the afternoon.

Monday Night: Isolated showers before 9pm. Partly cloudy, with a low around 61. Calm wind. Chance of precipitation is 20%.

Tuesday: Mostly sunny, with a high near 80. Northeast wind around 5 mph becoming east in the afternoon.

Tuesday Night: Partly cloudy, with a low around 57. Calm wind.

Wednesday: Mostly sunny, with a high near 80.

Wednesday Night: Partly cloudy, with a low around 57.

Thursday: Mostly sunny, with a high near 81.

Thursday Night: Partly cloudy, with a low around 59.

Friday: Sunny, with a high near 81.

Friday Night: Mostly clear, with a low around 60.

Saturday: Sunny, with a high near 84.

Saturday Night: Mostly clear, with a low around 62.

Sunday: Sunny, with a high near 86.

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Current U.S. National Radar--Current

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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 Cirrus Clouds?

Home - Education - Cloud Types - 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

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