Forecast Details for Honolulu, HI

Recent Locations: Las Vegas, NV San Diego, CA Honolulu, HI

Current Alerts for Honolulu, HI: Flood Advisory Flood Watch
High Surf Advisory Wind Advisory

This Afternoon: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 80. Windy, with a southwest wind around 28 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

Tonight: Showers likely and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 75. Windy, with a south southwest wind 25 to 28 mph, with gusts as high as 40 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

Sunday: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 80. Breezy, with a southwest wind around 22 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Sunday Night: Showers. Low around 74. Southwest wind 11 to 13 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Monday: Showers likely. Cloudy, with a high near 81. Southwest wind 7 to 10 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

Monday Night: Showers. Low around 73. West wind around 6 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

Tuesday: Showers likely. Cloudy, with a high near 78. Light and variable wind becoming south southwest 5 to 8 mph in the afternoon. Chance of precipitation is 70%.

Tuesday Night: Isolated showers. Cloudy, with a low around 71. South wind around 5 mph becoming calm after midnight. Chance of precipitation is 20%.

Wednesday: Isolated showers. Partly sunny, with a high near 79. Calm wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 20%.

Wednesday Night: Showers likely. Cloudy, with a low around 71. South wind 7 to 9 mph. Chance of precipitation is 70%.

Thursday: Scattered showers. Mostly cloudy, with a high near 79. South southeast wind 3 to 6 mph. Chance of precipitation is 30%.

Thursday Night: Scattered showers. Cloudy, with a low around 70. Southeast wind around 5 mph becoming calm after midnight. Chance of precipitation is 30%.

Friday: Scattered showers. Cloudy, with a high near 78. Light and variable wind. 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

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 Mammatus Clouds?

Home - Education - Cloud Types - Mammatus Clouds

Mammatus Clouds Next Topic: Nimbostratus Clouds

A mammatus cloud is a cloud with a unique feature which resembles a web of pouches hanging along the base of the cloud.

In the United States, mammatus clouds tend to form in the warmer months, commonly in the Midwest and eastern regions.

While they usually form at the bottom of a cumulonimbis cloud, they can also form under altostratus, altocumulus, stratocumulus, and cirrus clouds. Mammatus clouds warn that severe weather is close.

Next Topic: Nimbostratus Clouds

Weather Topic: What is Precipitation?

Home - Education - Precipitation - Precipitation

Next Topic: Rain

Precipitation can refer to many different forms of water that may fall from clouds. Precipitation occurs after a cloud has become saturated to the point where its water particles are more dense than the air below the cloud.

In most cases, precipitation will reach the ground, but it is not uncommon for precipitation to evaporate before it reaches the earth's surface. When precipitation evaporates before it contacts the ground it is called Virga. Graupel, hail, sleet, rain, drizzle, and snow are forms of precipitation, but fog and mist are not considered precipitation because the water vapor which constitutes them isn't dense enough to fall to the ground.

Next Topic: Rain