Forecast Details for Altamont, NY

Recent Locations: Columbia, MD Hendersonville, NC Altamont, NY

Today: A slight chance of rain between 9am and 11am. Partly sunny, with a high near 48. Southeast wind 7 to 10 mph becoming west in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 20%.

Tonight: Increasing clouds, with a low around 23. Northwest wind 5 to 7 mph.

Sunday: Snow likely before 10am, then snow likely, possibly mixed with sleet between 10am and 1pm, then a slight chance of snow after 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 28. Northwest wind 5 to 10 mph. Chance of precipitation is 60%. New snow and sleet accumulation of 1 to 3 inches possible.

Sunday Night: Mostly clear, with a low around 4. Wind chill values as low as -6. Northwest wind 6 to 10 mph.

Monday: Sunny, with a high near 23. Northwest wind around 6 mph.

Monday Night: Mostly clear, with a low around 7.

Tuesday: A chance of snow before 1pm, then rain and snow likely. Mostly cloudy, with a high near 35. Chance of precipitation is 70%.

Tuesday Night: Rain. Low around 29. Chance of precipitation is 80%.

Wednesday: Mostly sunny, with a high near 43.

Wednesday Night: A chance of rain after 1am. Partly cloudy, with a low around 28. Chance of precipitation is 30%.

Thursday: A chance of rain. Mostly cloudy, with a high near 48. Chance of precipitation is 50%.

Thursday Night: A chance of rain. Cloudy, with a low around 38. Chance of precipitation is 50%.

Friday: A chance of rain. Mostly cloudy, with a high near 51. Chance of precipitation is 40%.

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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