Forecast Details for Dennis Port, MA

Recent Locations: Casa Blanca, NM   Pontotoc, TX   Dennis Port, MA  
Tonight: A chance of rain. Areas of dense fog. Otherwise, cloudy, with a low around 48. Northeast wind 8 to 11 mph. Chance of precipitation is 40%.
Sunday: A chance of rain, mainly before 10am. Patchy dense fog before 11am. Otherwise, cloudy, with a high near 56. Northeast wind around 14 mph. Chance of precipitation is 30%.
Sunday Night: A slight chance of rain between 11pm and midnight. Patchy fog. Otherwise, cloudy, with a low around 48. Northeast wind 8 to 10 mph. Chance of precipitation is 20%.
Monday: Patchy fog before 9am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 60. Northeast wind around 8 mph.
Monday Night: Partly cloudy, with a low around 48. Light and variable wind.
Tuesday: Mostly sunny, with a high near 63. Light southwest wind becoming south 5 to 9 mph in the morning.
Tuesday Night: Partly cloudy, with a low around 51. Southwest wind around 6 mph.
Wednesday: Mostly sunny, with a high near 66. Southwest wind 7 to 11 mph.
Wednesday Night: Partly cloudy, with a low around 53. Southwest wind around 8 mph.
Thursday: Partly sunny, with a high near 65. Southwest wind 8 to 11 mph, with gusts as high as 21 mph.
Thursday Night: Mostly cloudy, with a low around 54. Southwest wind 6 to 8 mph.
Friday: Mostly sunny, with a high near 68. Southwest wind 6 to 9 mph.
Friday Night: Partly cloudy, with a low around 53. West wind 5 to 7 mph.
Saturday: Partly sunny, with a high near 65. South wind 6 to 8 mph.

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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