October 21, 2018 Weather Forecast

October 21, 2018, 7:00 AM HST · Updated October 21, 7:00 AM
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Photo: Chris Archer

High Surf Advisory issued October 21 at 3:39AM HST until October 22 at 6:00PM HST by NWS

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: Maui County high/low forecasted temperatures, projected winds, projected localized weather conditions and expected wave heights.**

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    Looking Ahead

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    A mid/upper level trough over the Big Island will continue moving slowly eastward today. Drier weather will spread across the entire state today and tonight, as the trade winds increase slightly. Showers riding in on the trades will favor windward and mountain areas, and will be mostly frequent during the overnight and early morning hours. A wetter trade wind pattern may develop by midweek, as deeper tropical moisture moves into the state from the southeast.

    West Side

    Today: Isolated showers after noon. Mostly sunny, with a high near 88. Light east wind becoming east northeast 6 to 11 mph in the afternoon. Chance of precipitation is 20%.

    Tonight: Mostly clear, with a low around 74. East northeast wind 6 to 14 mph, with gusts as high as 18 mph.

    Monday: Sunny, with a high near 88. Light east wind becoming east northeast 6 to 11 mph in the afternoon.

    South Side

    Today: Isolated showers after noon. Mostly sunny, with a high near 85. West wind around 5 mph becoming calm in the afternoon. Chance of precipitation is 20%.

    Tonight: Mostly clear, with a low around 73. Light and variable wind.

    Monday: Isolated showers after noon. Mostly sunny, with a high near 85. Light and variable wind becoming east northeast 5 to 10 mph in the afternoon. Chance of precipitation is 20%.

    North Shore

    Today: Scattered showers. Partly sunny, with a high near 84. Breezy, with an east northeast wind 11 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Tonight: Scattered showers. Mostly cloudy, with a low around 73. Breezy, with an east wind 11 to 16 mph, with gusts as high as 22 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Monday: Isolated showers before noon. Sunny, with a high near 84. Breezy, with an east northeast wind 11 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.

    Central Maui

    Today: Scattered showers. Partly sunny, with a high near 86. Breezy, with a northeast wind 6 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Tonight: Scattered showers, mainly before midnight. Partly cloudy, with a low around 72. Northeast wind 7 to 13 mph. Chance of precipitation is 30%.

    Monday: Sunny, with a high near 86. Breezy, with a northeast wind 7 to 15 mph, with gusts as high as 21 mph.

    Upcountry

    Today: Isolated showers after noon. Mostly sunny, with a high near 72. Calm wind becoming west around 6 mph. Chance of precipitation is 20%.

    Tonight: Mostly clear, with a low around 60. Calm wind.

    Monday: Isolated showers after noon. Sunny, with a high near 72. Light and variable wind becoming east northeast 5 to 10 mph in the afternoon. Chance of precipitation is 20%.

    East Maui

    Today: Showers likely, mainly before noon. Mostly cloudy, with a high near 81. Light and variable wind becoming east 5 to 10 mph in the morning. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Tonight: Showers likely, mainly after midnight. Mostly cloudy, with a low around 70. Northeast wind around 6 mph becoming calm after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Monday: Showers likely, mainly before noon. Partly sunny, with a high near 81. Light northeast wind becoming east northeast 6 to 11 mph in the morning. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Lanai City

    Today: Isolated showers. Mostly sunny, with a high near 77. Breezy, with a northeast wind 7 to 17 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

    Tonight: Isolated showers before 7pm. Mostly clear, with a low around 71. Breezy, with a northeast wind 15 to 17 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

    Monday: Isolated showers after 1pm. Mostly sunny, with a high near 77. Breezy, with a northeast wind 13 to 17 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

    Kaunakakai

    Today: Scattered showers, mainly before noon. Mostly sunny, with a high near 84. East northeast wind 5 to 14 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.

    Tonight: Mostly clear, with a low around 75. East northeast wind 6 to 14 mph, with gusts as high as 18 mph.

    Monday: Sunny, with a high near 84. East northeast wind 6 to 14 mph, with gusts as high as 18 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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