Weather

April 20, 2018 Weather Forecast

April 20, 2018, 6:01 AM HST
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Photo: James Grenz

Flash Flood Watch issued April 20 at 3:31AM HST until April 20 at 6:00PM HST by NWS

Our weather team will bring you any urgent weather alerts or updates as they occur. Check our breaking news section for the latest.

**Click directly on the images below to make them larger. Charts include: Hawaii Island high/low forecasted temperatures, projected winds, projected localized weather conditions and expected wave heights.**

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Looking Ahead

Wet weather and cloudy skies will remain in place through today, particularly over windward areas. Some showers may be heavy at times and isolated thunderstorms are possible. A typical trade wind pattern will return tonight, with showers favoring windward and mauka areas. High pressure north of the state will maintain moderate to breezy trade winds through the weekend, before strengthening to locally windy levels next week.

ARTICLE CONTINUES BELOW AD

Hilo

ARTICLE CONTINUES BELOW AD

Today: Occasional showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 80. West southwest wind around 6 mph becoming calm in the morning. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.

Tonight: Occasional showers. Low around 64. Light and variable wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

Saturday: Occasional showers. High near 82. East wind 3 to 6 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

ARTICLE CONTINUES BELOW AD

Kona

Today: Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after noon. Some of the storms could produce heavy rainfall. Widespread haze. Cloudy, with a high near 83. Calm wind becoming west southwest 5 to 7 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Tonight: Scattered showers, mainly before midnight. Widespread haze. Mostly cloudy, with a low around 65. Calm wind becoming west around 5 mph after midnight. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Saturday: Scattered showers, mainly after noon. Widespread haze. Partly sunny, with a high near 85. West northwest wind 5 to 7 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

Waimea

Today: Occasional showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 74. Breezy, with a northeast wind 13 to 21 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.

Tonight: Scattered showers. Mostly cloudy, with a low around 54. East wind 10 to 14 mph, with gusts as high as 18 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.

Saturday: Showers likely, mainly after noon. Mostly cloudy, with a high near 76. Breezy, with an east wind 14 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

Kohala

Today: Occasional showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 67. Windy, with an east wind 15 to 24 mph, with gusts as high as 34 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

Tonight: Showers likely. Mostly cloudy, with a low around 46. Breezy, with an east wind 13 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

Saturday: Showers likely. Mostly cloudy, with a high near 69. Windy, with an east wind 20 to 23 mph, with gusts as high as 33 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

South Point

Today: Scattered showers and thunderstorms. Some of the storms could produce heavy rainfall. Cloudy, with a high near 83. Windy, with an east northeast wind 23 to 28 mph, with gusts as high as 36 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight: Scattered showers. Widespread haze. Mostly cloudy, with a low around 71. Windy, with an east northeast wind 22 to 24 mph, with gusts as high as 31 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Saturday: Scattered showers. Widespread haze. Mostly cloudy, with a high near 85. Windy, with an east northeast wind around 25 mph, with gusts as high as 31 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

Puna

Today: Occasional showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 77. North wind 7 to 9 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.

Tonight: Occasional showers. Low around 62. North wind 7 to 9 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Saturday: Occasional showers. High near 80. Northeast wind around 10 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Waikoloa

Today: Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after noon. Some of the storms could produce heavy rainfall. Cloudy, with a high near 80. Breezy, with an east northeast wind 15 to 20 mph decreasing to 8 to 13 mph in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Tonight: Isolated showers. Mostly cloudy, with a low around 64. East northeast wind 6 to 8 mph. Chance of precipitation is 20%.

Saturday: Scattered showers, mainly after noon. Partly sunny, with a high near 82. North northeast wind 6 to 9 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Image: NOAA

Image: NOAA

Image: NOAA

Image: NOAA

Image: NOAA

Image: NOAA

Image: NOAA

Image: NOAA

Data Courtesy of NOAA.gov

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