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 as showers and thunderstorms develop Sunday night through Tuesday, and there is the possibility for some tornadoes/waterspouts Monday and Monday night. Tropical storm force winds are expected to reach Kauai and Niihau late Monday through Monday night. Read More >

Hazardous Weather Conditions

Current conditions at

Hilo, Hilo International Airport (PHTO)

Lat: 19.72°NLon: 155.06°WElev: 36ft.

Light Rain Fog/Mist

73°F

23°C

Humidity 96%
Wind Speed SW 5 mph
Barometer 29.82 in (1009.5 mb)
Dewpoint 72°F (22°C)
Visibility 5.00 mi
Last update 7 Sep 5:53 am HST
Extended Forecast for

Wainaku HI

Flood Watch September 7, 06:24am until September 8, 06:00pm
High Surf Advisory September 7, 06:24am until September 8, 06:00pm
Click here for hazard details and duration
Flood Watch
High Surf Advisory
  •  
    Flood Watch September 7, 06:24am until September 8, 06:00pm
    High Surf Advisory September 7, 06:24am until September 8, 06:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Labor Day

    High: 83 °F

    Heavy Rain
    and Breezy

  • Tonight

    Tonight: Frequent showers. The rain could be heavy at times. Low around 75. Southeast wind 8 to 13 mph becoming light and variable in the evening. Chance of precipitation is 90%. New precipitation amounts between 1 and 2 inches possible.

    Low: 75 °F

    Heavy Rain

  • Tuesday

    Tuesday: Frequent showers, with thunderstorms also possible after noon. Some of the storms could produce heavy rainfall. High near 86. Light and variable wind becoming southeast 9 to 14 mph in the morning. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 86 °F

    Heavy Rain

  • Tuesday Night

    Tuesday Night: Showers likely. Mostly cloudy, with a low around 75. Southeast wind around 6 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 75 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Showers likely. Mostly cloudy, with a high near 82. East southeast wind 5 to 7 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 82 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Occasional showers. Low around 73. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 73 °F

    Showers

  • Thursday

    Thursday: Showers likely, mainly before noon. Mostly cloudy, with a high near 80. Calm wind becoming east northeast around 6 mph in the afternoon. Chance of precipitation is 60%.

    High: 80 °F

    Showers
    Likely then
    Isolated
    Showers

  • Thursday Night

    Thursday Night: Scattered showers. Mostly cloudy, with a low around 71. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%.

    Low: 71 °F

    Scattered
    Showers

Detailed Forecast

Labor Day
Frequent showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 83. Breezy, with a southeast wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between 2 and 3 inches possible.
Tonight
Frequent showers. The rain could be heavy at times. Low around 75. Southeast wind 8 to 13 mph becoming light and variable in the evening. Chance of precipitation is 90%. New precipitation amounts between 1 and 2 inches possible.
Tuesday
Frequent showers, with thunderstorms also possible after noon. Some of the storms could produce heavy rainfall. High near 86. Light and variable wind becoming southeast 9 to 14 mph in the morning. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday Night
Showers likely. Mostly cloudy, with a low around 75. Southeast wind around 6 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Showers likely. Mostly cloudy, with a high near 82. East southeast wind 5 to 7 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Occasional showers. Low around 73. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Showers likely, mainly before noon. Mostly cloudy, with a high near 80. Calm wind becoming east northeast around 6 mph in the afternoon. Chance of precipitation is 60%.
Thursday Night
Scattered showers. Mostly cloudy, with a low around 71. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%.
Friday
Scattered showers, mainly before noon. Mostly sunny, with a high near 80. East northeast wind around 6 mph becoming calm in the afternoon. Chance of precipitation is 30%.
Friday Night
Scattered showers. Mostly cloudy, with a low around 71. Calm wind. Chance of precipitation is 50%.
Saturday
Scattered showers. Partly sunny, with a high near 81. Calm wind becoming east northeast 5 to 7 mph. Chance of precipitation is 40%.
Saturday Night
Scattered showers. Partly cloudy, with a low around 71. Calm wind. Chance of precipitation is 50%.
Sunday
Isolated showers. Mostly sunny, with a high near 83. Calm wind becoming northeast 5 to 8 mph. Chance of precipitation is 20%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Wainaku HI
 19.72°N 155.09°W (Elev. 95 ft)
Last Update:
6:02 am HST Sep 7, 2026
Forecast Valid:
6am HST Sep 7, 2026-6pm HST Sep 13, 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