August 17, 2018 Weather Forecast

Photo Credit: James Grenz

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.**

Looking Ahead

Convection has started to develop across interior Big Island and the leeward slopes of Haleakala. A quick update was issued for Maui to add thunderstorm chances to the afternoon forecast over Upcountry areas.

Hilo

This Afternoon: Scattered showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy, with a high near 86. North northeast wind 6 to 11 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight: Occasional showers. Low around 68. West northwest wind 3 to 5 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

Saturday: Frequent showers, with thunderstorms also possible after noon. Some of the storms could produce heavy rainfall. High near 85. Light and variable wind becoming east 5 to 10 mph in the morning. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Kona

This Afternoon: Scattered showers. Widespread haze. Cloudy, with a high near 82. Southwest wind 5 to 8 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Tonight: Scattered showers before midnight. Cloudy during the early evening, then gradual clearing, with a low around 67. Light and variable wind. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

Saturday: Scattered showers after noon. The rain could be heavy at times. Widespread haze. Increasing clouds, with a high near 82. Light and variable wind becoming southwest 5 to 9 mph in the morning. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

Waimea

This Afternoon: Scattered showers and thunderstorms. Some of the storms could produce heavy rain. Mostly cloudy, with a high near 81. Breezy, with a northeast wind 14 to 16 mph, with gusts as high as 22 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. Mostly cloudy, with a low around 60. Breezy, with an east northeast wind around 17 mph, with gusts as high as 24 mph. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.

Saturday: Showers likely, with thunderstorms also possible after noon. Some of the storms could produce heavy rainfall. Mostly cloudy, with a high near 81. Breezy, with a northeast wind 13 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

Kohala

This Afternoon: Showers likely and possibly a thunderstorm. Some of the storms could produce heavy rain. Mostly cloudy, with a high near 67. East northeast wind 9 to 11 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight: Showers likely. Mostly cloudy, with a low around 55. Breezy, with an east wind around 15 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

Saturday: Frequent showers, with thunderstorms also possible after noon. Some of the storms could produce heavy rainfall. High near 67. Breezy, with an east northeast wind 9 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

South Point

This Afternoon: Scattered showers. Widespread haze. Partly sunny, with a high near 81. Breezy, with an east northeast wind around 17 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: Isolated showers. Partly cloudy, with a low around 79. Breezy, with an east northeast wind 10 to 16 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

Saturday: Showers likely, mainly after noon. The rain could be heavy at times. Widespread haze. Partly sunny, with a high near 81. Breezy, with an east northeast wind 14 to 22 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Puna

This Afternoon: Showers likely and possibly a thunderstorm. Some of the storms could produce heavy rain. Cloudy, with a high near 85. Breezy, with a north northeast wind 11 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight: Occasional showers. Low around 66. North northwest wind 8 to 10 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Saturday: Frequent showers, with thunderstorms also possible after noon. Some of the storms could produce heavy rainfall. High near 84. North northwest wind 8 to 11 mph becoming east in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Waikoloa

This Afternoon: Isolated showers. Mostly sunny, with a high near 87. Northeast wind 9 to 14 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.

Tonight: Isolated showers before midnight. Mostly clear, with a low around 68. East northeast wind 10 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

Saturday: Isolated showers. The rain could be heavy at times. Mostly sunny, with a high near 87. East wind 7 to 13 mph becoming north northeast in the afternoon. 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