Forecast Details for Alta Vista, IA

Recent Locations: West Swanzey, NH Westhampton Beach, NY Alta Vista, IA

Today: Sunny, with a high near 76. Calm wind becoming southwest around 6 mph in the morning.

Tonight: Mostly clear, with a low around 52. Southwest wind 6 to 8 mph becoming northwest after midnight.

Saturday: Sunny, with a high near 75. North wind around 10 mph.

Saturday Night: Clear, with a low around 50. East wind 6 to 10 mph becoming southeast after midnight.

Sunday: Sunny, with a high near 79. Southeast wind 10 to 15 mph.

Sunday Night: Clear, with a low around 56. South wind 10 to 13 mph.

Monday: Sunny, with a high near 80. Breezy, with a south wind 10 to 16 mph, with gusts as high as 24 mph.

Monday Night: Mostly clear, with a low around 57. South wind 10 to 13 mph, with gusts as high as 21 mph.

Tuesday: Sunny, with a high near 81. South wind 10 to 15 mph.

Tuesday Night: Mostly clear, with a low around 61. Southeast wind around 11 mph.

Wednesday: A 20 percent chance of showers. Sunny, with a high near 83. Breezy, with a southeast wind 10 to 17 mph, with gusts as high as 25 mph.

Wednesday Night: A 20 percent chance of showers. Partly cloudy, with a low around 63. Southeast wind around 14 mph, with gusts as high as 22 mph.

Thursday: A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 83. Breezy, with a south wind 14 to 20 mph, with gusts as high as 28 mph.

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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

Tomorrow National Weather Forecast and Tomorrow National Weather Map are show below.

North America Water Vapor (Moisture)

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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