July 21, 2018 Weather Forecast
Photo: James Grenz
**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.**
Looking Ahead
Surface high pressure north of the islands will keep a moderate trade wind flow in place through much of next week, with low clouds and showers favoring windward and mauka areas. An area of enhanced moisture embedded within the trades is forecast to spread westward across the islands Sunday through early next week. This will likely cause an increase in the coverage of low clouds and showers over windward sections from Sunday night into early next week, with an increase in shower chances over leeward areas as well.
Hilo
This Afternoon: Scattered showers. Mostly cloudy, with a high near 84. Northeast wind 5 to 8 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Tonight: Showers likely. Mostly cloudy, with a low around 68. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday: Showers likely. Mostly cloudy, with a high near 85. Calm wind becoming east northeast 5 to 7 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Kona
This Afternoon: Isolated showers. Widespread haze. Partly sunny, with a high near 81. West southwest wind 5 to 7 mph becoming calm. Chance of precipitation is 20%.
Tonight: Isolated showers before midnight. Widespread haze. Partly cloudy, with a low around 68. Calm wind. Chance of precipitation is 20%.
Sunday: Isolated showers after noon. Widespread haze. Partly sunny, with a high near 81. Calm wind becoming southwest 5 to 7 mph in the morning. Chance of precipitation is 20%.
Waimea
This Afternoon: Isolated showers. Partly sunny, with a high near 77. Breezy, with a northeast wind 15 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
Tonight: Scattered showers. Mostly cloudy, with a low around 60. Breezy, with a northeast wind 13 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 40%. New precipitation amounts between a quarter and half of an inch possible.
Sunday: Scattered showers. Mostly cloudy, with a high near 78. Breezy, with a northeast wind 13 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 40%. New precipitation amounts between a quarter and half of an inch possible.
Kohala
This Afternoon: Scattered showers. Partly sunny, with a high near 74. Breezy, with an east wind 18 to 21 mph, with gusts as high as 29 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tonight: Scattered showers. Mostly cloudy, with a low around 58. Breezy, with an east wind around 18 mph, with gusts as high as 25 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Sunday: Showers likely, mainly after noon. Mostly cloudy, with a high near 74. Breezy, with an east wind around 18 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
South Point
This Afternoon: Widespread haze. Partly sunny, with a high near 84. Breezy, with an east wind around 21 mph, with gusts as high as 26 mph.
Tonight: Isolated showers. Widespread haze. Mostly cloudy, with a low around 77. Breezy, with an east wind around 21 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
Sunday: Isolated showers before noon. Widespread haze. Partly sunny, with a high near 84. Windy, with an east wind 20 to 24 mph, with gusts as high as 31 mph. Chance of precipitation is 20%.
Puna
This Afternoon: Scattered showers. Widespread haze. Mostly cloudy, with a high near 81. Breezy, with a northeast wind 10 to 16 mph, with gusts as high as 22 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Tonight: Showers likely. Widespread haze. Mostly cloudy, with a low around 66. North northwest wind around 11 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Sunday: Showers likely. Widespread haze. Mostly cloudy, with a high near 82. Breezy, with a north northeast wind 10 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Waikoloa
This Afternoon: Mostly sunny, with a high near 85. Breezy, with an east northeast wind 15 to 18 mph, with gusts as high as 25 mph.
Tonight: Partly cloudy, with a low around 69. Breezy, with an east northeast wind 14 to 18 mph, with gusts as high as 25 mph.
Sunday: Isolated showers after noon. Partly sunny, with a high near 85. East northeast wind 10 to 14 mph becoming south southwest in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 20%.
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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