Weather

July 31, 2018 Weather Forecast

July 31, 2018, 7:00 AM HST
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Photo: Asa Ellison

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

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Looking Ahead

High pressure north of the state will keep breezy trade winds in place through Friday. Showers will remain a bit more active than normal this morning, then decrease this afternoon as a slightly drier airmass moves in. A fairly typical trade wind shower regime is then expected tonight through Thursday night, although windward Big Island may remain a bit more showery tonight and Wednesday as a disturbance passes by to the south of the state. An upper level trough is expected to bring an increase in shower coverage and intensity once again late Friday through the weekend. A drier trade wind pattern is then forecast to overspread the state early next week.

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West Side

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Today: Mostly sunny, with a high near 92. Heat index values as high as 100. Breezy, with an east northeast wind 7 to 12 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 28 mph.

Tonight: Partly cloudy, with a low around 75. Windy, with an east northeast wind 20 to 23 mph, with gusts as high as 32 mph.

Wednesday: Mostly sunny, with a high near 90. Heat index values as high as 96. Windy, with an east northeast wind around 23 mph, with gusts as high as 32 mph.

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South Side

Today: Scattered showers after 1pm. Mostly sunny, with a high near 92. Heat index values as high as 97. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Tonight: Scattered showers before 7pm. Partly cloudy, with a low around 74. West 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 after 1pm. Mostly sunny, with a high near 90. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 20%.

North Shore

Today: Scattered showers, mainly before 1pm. Partly sunny, with a high near 91. Heat index values as high as 97. Windy, with an east wind 18 to 24 mph, with gusts as high as 34 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Tonight: Isolated showers. Partly cloudy, with a low around 75. Windy, with an east wind 21 to 24 mph, with gusts as high as 34 mph. Chance of precipitation is 20%.

Wednesday: Isolated showers before 1pm. Mostly sunny, with a high near 89. Windy, with an east wind 21 to 25 mph, with gusts as high as 37 mph. Chance of precipitation is 20%.

Central Maui

Today: Mostly sunny, with a high near 92. Heat index values as high as 99. Windy, with an east northeast wind 10 to 15 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 33 mph.

Tonight: Partly cloudy, with a low around 73. Breezy, with an east northeast wind 14 to 21 mph, with gusts as high as 29 mph.

Wednesday: Mostly sunny, with a high near 90. Heat index values as high as 95. Windy, with an east northeast wind 14 to 19 mph increasing to 20 to 25 mph in the morning. Winds could gust as high as 37 mph.

Upcountry

Today: Isolated showers after noon. Mostly sunny, with a high near 78. Calm wind becoming west around 6 mph. Chance of precipitation is 20%.

Tonight: Partly cloudy, with a low around 61. Calm wind becoming southeast 5 to 7 mph after midnight.

Wednesday: Mostly sunny, with a high near 76. Calm wind becoming east 5 to 9 mph in the afternoon.

East Maui

Today: Showers likely, mainly before noon. Partly sunny, with a high near 86. East wind 9 to 11 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

Tonight: Showers likely, mainly after midnight. Mostly cloudy, with a low around 72. East wind around 11 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Wednesday: Showers likely, mainly before noon. Partly sunny, with a high near 84. Breezy, with an east wind 10 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.

Lanai City

Today: Scattered showers after noon. Mostly sunny, with a high near 79. Breezy, with a northeast wind 7 to 12 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Tonight: Partly cloudy, with a low around 69. Breezy, with a northeast wind 13 to 21 mph, with gusts as high as 29 mph.

Wednesday: Isolated showers after noon. Mostly sunny, with a high near 79. Windy, with a northeast wind 15 to 23 mph, with gusts as high as 32 mph. Chance of precipitation is 20%.

Kaunakakai

Today: Mostly sunny, with a high near 90. Heat index values as high as 97. Breezy, with an east wind 11 to 17 mph, with gusts as high as 23 mph.

Tonight: Partly cloudy, with a low around 79. Breezy, with an east wind 13 to 16 mph, with gusts as high as 23 mph.

Wednesday: Mostly sunny, with a high near 89. Heat index values as high as 95. Breezy, with an east wind 15 to 22 mph, with gusts as high as 30 mph.

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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