National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Impacts from Lowell to impact the islands through Tuesday

Lowell is expected to bring various impacts to all islands through Tuesday. High surf will continue through Monday night. Flooding will be possible Tuesday, and there is the possibility for some tornadoes/waterspouts through Monday night. Hurricane force winds are expected for Kauai and Niihau, with tropical storm force winds for Oahu, through Monday night. Read More >

Hazardous Weather Conditions

Current conditions at

Kahului, Kahului Airport (PHOG)

Lat: 20.89°NLon: 156.44°WElev: 52ft.

Mostly Cloudy

86°F

30°C

Humidity 67%
Wind Speed NE 17 G 25 mph
Barometer 29.69 in (1005.8 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index94°F (34°C)
Last update 7 Sep 2:54 pm HST
Extended Forecast for

Wailuku HI

Flood Watch September 7, 03:49pm until September 8, 06:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch September 7, 03:49pm until September 8, 06:00pm

    NOW until 6:00pm Tue

    Flood Watch

  • Labor Day

    High: 77 °F

    Heavy Rain

  • Tonight

    Tonight: Frequent showers. The rain could be heavy at times. Low around 75. Breezy, with a light and variable wind becoming south 16 to 21 mph after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between 1 and 2 inches possible.

    Low: 75 °F

    Heavy Rain
    and Breezy

  • Tuesday

    Tuesday: Showers likely. Mostly cloudy, with a high near 78. Windy, with a south wind 20 to 25 mph decreasing to 7 to 12 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 78 °F

    Showers
    Likely and
    Windy

  • Tuesday Night

    Tuesday Night: Showers likely, mainly before midnight. Mostly cloudy, with a low around 74. South wind 5 to 7 mph becoming east after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 74 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Scattered showers. Partly sunny, with a high near 77. East wind 5 to 8 mph. Chance of precipitation is 50%.

    High: 77 °F

    Scattered
    Showers

  • Wednesday Night

    Wednesday Night: Scattered showers. Mostly cloudy, with a low around 73. East northeast wind 6 to 8 mph. Chance of precipitation is 50%.

    Low: 73 °F

    Scattered
    Showers

  • Thursday

    Thursday: Isolated showers. Mostly sunny, with a high near 75. East northeast wind 6 to 9 mph. Chance of precipitation is 20%.

    High: 75 °F

    Isolated
    Showers

  • Thursday Night

    Thursday Night: Isolated showers before midnight. Partly cloudy, with a low around 71. East northeast wind around 9 mph. Chance of precipitation is 20%.

    Low: 71 °F

    Isolated
    Showers then
    Mostly Clear

Detailed Forecast

Labor Day
Frequent showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 77. Northeast wind 9 to 13 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Frequent showers. The rain could be heavy at times. Low around 75. Breezy, with a light and variable wind becoming south 16 to 21 mph after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between 1 and 2 inches possible.
Tuesday
Showers likely. Mostly cloudy, with a high near 78. Windy, with a south wind 20 to 25 mph decreasing to 7 to 12 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
Showers likely, mainly before midnight. Mostly cloudy, with a low around 74. South wind 5 to 7 mph becoming east after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Scattered showers. Partly sunny, with a high near 77. East wind 5 to 8 mph. Chance of precipitation is 50%.
Wednesday Night
Scattered showers. Mostly cloudy, with a low around 73. East northeast wind 6 to 8 mph. Chance of precipitation is 50%.
Thursday
Isolated showers. Mostly sunny, with a high near 75. East northeast wind 6 to 9 mph. Chance of precipitation is 20%.
Thursday Night
Isolated showers before midnight. Partly cloudy, with a low around 71. East northeast wind around 9 mph. Chance of precipitation is 20%.
Friday
Mostly sunny, with a high near 75. East northeast wind 7 to 9 mph.
Friday Night
Partly cloudy, with a low around 71. East northeast wind 6 to 8 mph.
Saturday
Mostly sunny, with a high near 75. East northeast wind 6 to 8 mph.
Saturday Night
Mostly clear, with a low around 71. East wind 6 to 8 mph.
Sunday
Sunny, with a high near 75. East northeast wind 7 to 9 mph.
Sunday Night
Mostly clear, with a low around 72. East northeast wind 7 to 9 mph.
Monday
Sunny, with a high near 76. Northeast wind 5 to 7 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Wailuku HI
 20.87°N 156.52°W (Elev. 1224 ft)
Last Update:
8:12 am HST Sep 7, 2026
Forecast Valid:
3pm HST Sep 7, 2026-6pm HST Sep 14, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation