Forecast Details for Waikoloa, HI

Recent Locations: Plattsburg, MO Attalla, AL Waikoloa, HI

Tonight: Mostly clear, with a low around 62. Windy, with an east wind around 26 mph, with gusts as high as 38 mph.

Wednesday: Sunny, with a high near 80. Windy, with an east northeast wind 24 to 30 mph, with gusts as high as 44 mph.

Wednesday Night: Clear, with a low around 63. Windy, with an east wind 20 to 25 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 36 mph.

Thursday: Mostly cloudy, with a high near 79. North northeast wind around 7 mph.

Thursday Night: Mostly cloudy, with a low around 62. Northeast wind 5 to 7 mph.

Friday: Partly sunny, with a high near 80. North northeast wind 5 to 7 mph.

Friday Night: Mostly cloudy, with a low around 63. East northeast wind around 6 mph.

Saturday: Mostly sunny, with a high near 81. North wind around 6 mph.

Saturday Night: Partly cloudy, with a low around 63. Northeast wind 3 to 5 mph.

Sunday: Mostly sunny, with a high near 82. Light and variable wind becoming north northwest around 5 mph.

Sunday Night: Partly cloudy, with a low around 64. Light north northwest wind.

Monday: Mostly cloudy, with a high near 82. Calm wind.

Monday Night: Mostly cloudy, with a low around 65. Calm wind.

Tuesday: Scattered showers. Mostly cloudy, with a high near 83. Calm wind. Chance of precipitation is 30%.

Want more detail? Get the Complete 7 Day and Night Detailed Forecast!

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).

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 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