Forecast Details for Hilo, HI

Recent Locations: White Plains, NC Hilo, HI

Tonight: Scattered showers. Mostly cloudy, with a low around 64. North wind 7 to 10 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.

Monday: Showers likely, mainly before noon. Partly sunny, with a high near 73. North wind 9 to 13 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Monday Night: Scattered showers. Mostly cloudy, with a low around 63. North wind 8 to 10 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

Tuesday: Scattered showers, mainly before noon. Partly sunny, with a high near 75. North northeast wind 10 to 13 mph. Chance of precipitation is 40%.

Tuesday Night: Scattered showers. Mostly cloudy, with a low around 63. North northwest wind 7 to 10 mph. Chance of precipitation is 40%.

Wednesday: Scattered showers, mainly before noon. Partly sunny, with a high near 76. North northeast wind 7 to 11 mph. Chance of precipitation is 40%.

Wednesday Night: Showers likely, mainly after midnight. Mostly cloudy, with a low around 64. North wind 7 to 11 mph. Chance of precipitation is 60%.

Thursday: Scattered showers, mainly before noon. Mostly cloudy, with a high near 76. North northeast wind 6 to 9 mph. Chance of precipitation is 50%.

Thursday Night: Showers likely, mainly after midnight. Mostly cloudy, with a low around 64. North wind around 6 mph. Chance of precipitation is 60%.

Friday: Scattered showers, mainly before noon. Mostly cloudy, with a high near 76. North northeast wind 5 to 9 mph. Chance of precipitation is 50%.

Friday Night: Showers likely. Mostly cloudy, with a low around 64. North northwest wind around 6 mph becoming calm after midnight. Chance of precipitation is 60%.

Saturday: Scattered showers. Mostly cloudy, with a high near 77. Calm wind becoming northeast 5 to 7 mph. Chance of precipitation is 50%.

Saturday Night: Showers likely. Mostly cloudy, with a low around 65. Light north northwest wind. Chance of precipitation is 60%.

Sunday: Scattered showers. Mostly cloudy, with a high near 76. Calm wind becoming northeast 5 to 7 mph in the afternoon. Chance of precipitation is 50%.

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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 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