September 24, 2018 Weather Forecast

Photo: James Grenz

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**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

Low pressure northwest of Kauai will lift northeast over the next couple of days, which will drag a weakening trough toward the islands. This will bring an increase in moisture moving in from the west and south. Expect increasing showers on Kauai tonight and Tuesday, which will linger into midweek. Muggy conditions are expected to continue through much of the week with light southerly winds ahead of the trough. A more typical trade wind pattern may return at the end of the week.

Hilo

This Afternoon: Scattered showers. Partly sunny, with a high near 89. Heat index values as high as 96. East southeast wind 7 to 14 mph, with gusts as high as 18 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 70. East southeast wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

Tuesday: Scattered showers, with thunderstorms also possible after noon. Mostly cloudy, with a high near 89. Heat index values as high as 96. Breezy, with a light south wind becoming southeast 10 to 15 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.

Kona

This Afternoon: Scattered showers. Mostly cloudy, with a high near 82. West wind 6 to 9 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 69. Northwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 20%.

Tuesday: Isolated showers, then scattered showers and thunderstorms after noon. Partly sunny, with a high near 83. Light and variable wind becoming west northwest 5 to 10 mph in the afternoon. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Waimea

This Afternoon: Scattered showers. Mostly cloudy, with a high near 81. Light and variable wind. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

Tonight: Isolated showers. Mostly cloudy, with a low around 62. Light and variable wind. Chance of precipitation is 20%.

Tuesday: Isolated showers, then scattered showers and thunderstorms after noon. Mostly cloudy, with a high near 82. Calm wind becoming west northwest around 5 mph. 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 67. Calm wind. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

Tonight: Isolated showers. Partly cloudy, with a low around 57. Light and variable wind. Chance of precipitation is 20%.

Tuesday: Isolated showers, then scattered showers and thunderstorms after noon. Mostly cloudy, with a high near 68. Light and variable wind. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

South Point

This Afternoon: Isolated showers. Mostly sunny, with a high near 87. Heat index values as high as 96. Breezy, with an east wind around 16 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

Tonight: Scattered showers. Mostly cloudy, with a low around 78. Breezy, with an east northeast wind around 15 mph, with gusts as high as 18 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

Tuesday: Scattered showers, with thunderstorms also possible after noon. Mostly cloudy, with a high near 88. Heat index values as high as 97. Breezy, with an east northeast wind around 16 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Puna

This Afternoon: Scattered showers. Partly sunny, with a high near 88. Heat index values as high as 97. Southeast wind 9 to 13 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Tonight: Showers likely. Mostly cloudy, with a low around 68. Southeast wind 5 to 9 mph becoming light. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

Tuesday: Scattered showers, with thunderstorms also possible after noon. Mostly cloudy, with a high near 88. Heat index values as high as 96. South southeast wind 8 to 13 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Waikoloa

This Afternoon: Scattered showers. Partly sunny, with a high near 87. West northwest wind 5 to 11 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

Tonight: Isolated showers. Partly cloudy, with a low around 70. West wind around 5 mph becoming calm. Chance of precipitation is 20%.

Tuesday: Isolated showers, then scattered showers and thunderstorms after noon. Mostly cloudy, with a high near 88. West northwest wind 6 to 11 mph becoming light and variable in the afternoon. Chance of precipitation is 50%. 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