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

74°F

23°C

Humidity 94%
Wind Speed SW 9 mph
Barometer 29.80 in (1009.1 mb)
Dewpoint 72°F (22°C)
Visibility 7.00 mi
Last update 7 Sep 4:53 am HST
Extended Forecast for

3 Miles SW Wainaku HI

Flood Watch September 7, 05:01am until September 8, 06:00pm
High Surf Advisory September 7, 05:01am until September 8, 06:00pm
Click here for hazard details and duration
Flood Watch
High Surf Advisory
  •  
    Flood Watch September 7, 05:01am until September 8, 06:00pm
    High Surf Advisory September 7, 05:01am until September 8, 06:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Overnight

    Low: 71 °F

    Heavy Rain

  • Labor Day

    Labor Day: Frequent showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 81. Breezy, with a southeast wind 5 to 15 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New rainfall amounts between 2 and 3 inches possible.

    High: 81 °F

    Heavy Rain
    and Breezy

  • Monday Night

    Monday Night: Frequent showers. The rain could be heavy at times. Low around 73. Southeast wind 5 to 9 mph becoming calm after midnight. Chance of precipitation is 90%. New precipitation amounts between 1 and 2 inches possible.

    Low: 73 °F

    Heavy Rain

  • Tuesday

    Tuesday: 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 6 to 11 mph in the morning. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 85 °F

    Heavy Rain

  • Tuesday Night

    Tuesday Night: Showers likely. Mostly cloudy, with a low around 73. South southeast wind 3 to 5 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 73 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Showers likely, mainly after noon. Mostly cloudy, with a high near 80. East southeast wind 3 to 7 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 80 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Occasional showers. Low around 71. Light south wind. Chance of precipitation is 80%.

    Low: 71 °F

    Showers

  • Thursday

    Thursday: Showers likely, mainly before noon. Mostly cloudy, with a high near 78. Light and variable wind becoming east northeast around 6 mph in the afternoon. Chance of precipitation is 60%.

    High: 78 °F

    Showers
    Likely then
    Isolated
    Showers

Detailed Forecast

Overnight
Occasional showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 71. South wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Labor Day
Frequent showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 81. Breezy, with a southeast wind 5 to 15 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New rainfall amounts between 2 and 3 inches possible.
Monday Night
Frequent showers. The rain could be heavy at times. Low around 73. Southeast wind 5 to 9 mph becoming calm after midnight. 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 85. Light and variable wind becoming east 6 to 11 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 73. South southeast wind 3 to 5 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Showers likely, mainly after noon. Mostly cloudy, with a high near 80. East southeast wind 3 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 71. Light south wind. Chance of precipitation is 80%.
Thursday
Showers likely, mainly before noon. Mostly cloudy, with a high near 78. Light and variable 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 69. East northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%.
Friday
Isolated showers. Mostly sunny, with a high near 78. East northeast wind around 5 mph becoming calm in the afternoon. Chance of precipitation is 20%.
Friday Night
Scattered showers. Mostly cloudy, with a low around 69. Calm wind. Chance of precipitation is 50%.
Saturday
Scattered showers. Partly sunny, with a high near 79. East northeast wind around 6 mph becoming calm in the afternoon. Chance of precipitation is 30%.
Saturday Night
Scattered showers. Partly cloudy, with a low around 69. Calm wind. Chance of precipitation is 50%.
Sunday
Scattered showers. Mostly sunny, with a high near 81. Calm wind becoming east northeast around 6 mph. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Wainaku HI
 19.72°N 155.14°W (Elev. 948 ft)
Last Update:
4:53 am HST Sep 7, 2026
Forecast Valid:
5am 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