Forecast Details for Hilo, HI

Recent Locations: Granite City, IL Crawfordsville, OR Hilo, HI

Overnight: Showers. Low around 66. West wind around 5 mph. Chance of precipitation is 80%.

Thursday: Scattered showers. Partly sunny, with a high near 74. West southwest wind around 5 mph becoming calm. Chance of precipitation is 30%.

Thursday Night: Showers. Low around 65. East southeast wind 3 to 5 mph. Chance of precipitation is 80%.

Friday: Scattered showers. Partly sunny, with a high near 76. East wind 5 to 7 mph becoming calm in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Friday Night: Occasional showers. Low around 65. Light and variable wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Saturday: Scattered showers. Mostly cloudy, with a high near 75. Calm wind becoming east 5 to 7 mph. Chance of precipitation is 30%. New precipitation amounts between a quarter and half of an inch possible.

Saturday Night: Occasional showers. Low around 66. South southeast wind 3 to 6 mph. Chance of precipitation is 80%.

Sunday: Scattered showers. Mostly cloudy, with a high near 74. East wind 3 to 8 mph. Chance of precipitation is 30%.

Sunday Night: Occasional showers. Low around 65. East wind 5 to 8 mph becoming calm after midnight. Chance of precipitation is 80%.

Washington's Birthday: Scattered showers. Mostly cloudy, with a high near 73. Calm wind becoming east 5 to 7 mph in the afternoon. Chance of precipitation is 30%.

Monday Night: Occasional showers. Low around 65. East wind around 6 mph becoming west southwest after midnight. Chance of precipitation is 80%.

Tuesday: Occasional showers. High near 75. West southwest wind 5 to 8 mph becoming east southeast in the morning. Chance of precipitation is 80%.

Tuesday Night: Occasional showers. Low around 65. South southwest wind 5 to 13 mph becoming southeast after midnight. Chance of precipitation is 80%.

Wednesday: Occasional showers. High near 75. Breezy, with an east southeast wind 13 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 80%.

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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)

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 Cirrocumulus Clouds?

Home - Education - Cloud Types - Cirrocumulus Clouds

Next Topic: Cirrostratus Clouds

Cirrocumulus clouds form at high altitudes (usually around 5 km) and have distinguishing characteristics displayed in a fine layer of small cloud patches. These small cloud patches are sometimes referred to as "cloudlets" in relation to the whole cloud formation.

Cirrocumulus clouds are formed from ice crystals and water droplets. Often, the water droplets in the cloud freeze into ice crystals and the cloud becomes a cirrostratus cloud. Because of this common occurrence, cirrocumulus cloud formations generally pass rapidly.

Next Topic: Cirrostratus Clouds

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