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September 25, 2018 Weather Forecast

September 25, 2018, 1:45 PM HST
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Photo: James Grenz

There are no active watches, warnings or advisories

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

Low pressure north northwest of Kauai will move east during the next couple of days, dragging a surface trough slowly eastward toward the islands. High moisture levels with southerly winds ahead of the trough will bring frequent showers to Kauai today and tonight, with heavy rainfall possible. Muggy conditions are expected to continue across the state through much of the week as the trough slowly weakens. A more typical trade wind pattern should return by Thursday night or Friday, with trades becoming breezy during the weekend.

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Hilo

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This Afternoon: Showers likely. Mostly cloudy, with a high near 88. Southeast wind 10 to 14 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

Tonight: Scattered showers. Mostly cloudy, with a low around 71. South southeast wind 5 to 10 mph becoming light south after midnight. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Wednesday: Scattered showers, with thunderstorms also possible after noon. Partly sunny, with a high near 88. Light south wind becoming southeast 9 to 14 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

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Kona

This Afternoon: Scattered showers. Mostly cloudy, with a high near 82. West wind 5 to 7 mph. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch possible.

Tonight: Scattered showers, mainly before midnight. Mostly cloudy, with a low around 66. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Wednesday: Isolated showers, then scattered showers and thunderstorms after noon. Increasing clouds, with a high near 83. Calm wind becoming west northwest 5 to 8 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Waimea

This Afternoon: Scattered showers. Mostly cloudy, with a high near 82. West wind 5 to 7 mph. Chance of precipitation is 50%. New precipitation amounts between a quarter and half of an inch possible.

Tonight: Isolated showers before midnight. Partly cloudy, with a low around 62. West southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.

Wednesday: Scattered showers and thunderstorms after noon. Increasing clouds, with a high near 82. Light and variable wind. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Kohala

This Afternoon: Scattered showers. Mostly cloudy, with a high near 68. West wind around 5 mph becoming calm. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

Tonight: Scattered showers before midnight. Partly cloudy, with a low around 57. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Wednesday: Showers likely and possibly a thunderstorm after noon. Increasing clouds, with a high near 68. Light and variable wind. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

South Point

This Afternoon: Showers likely. Mostly cloudy, with a high near 88. Heat index values as high as 96. Breezy, with an east wind 15 to 17 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Tonight: Showers likely. Mostly cloudy, with a low around 78. Breezy, with an east wind 13 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Wednesday: Showers likely, mainly before noon. Mostly cloudy, with a high near 88. Heat index values as high as 96. East northeast wind around 14 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Puna

This Afternoon: Showers likely. Mostly cloudy, with a high near 87. Breezy, with a south southeast wind 13 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

Tonight: Showers likely. Mostly cloudy, with a low around 69. South wind 8 to 13 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

Wednesday: Showers likely, with thunderstorms also possible after noon. Mostly cloudy, with a high near 87. Breezy, with a south southeast wind 8 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Waikoloa

This Afternoon: Mostly sunny, with a high near 87. West northwest wind 5 to 9 mph.

Tonight: Scattered showers, mainly before midnight. Partly cloudy, with a low around 67. West northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Wednesday: Isolated showers, then scattered showers and thunderstorms after noon. Partly sunny, with a high near 88. West northwest wind 5 to 9 mph becoming calm in the afternoon. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

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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