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

Hilo, Hilo International Airport (PHTO)

Lat: 19.72°NLon: 155.06°WElev: 36ft.

Fair

77°F

25°C

Humidity 88%
Wind Speed S 6 mph
Barometer 29.78 in (1008.4 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 7 Sep 11:53 pm HST
Extended Forecast for

Hilo HI

Flood Watch September 8, 12:04am until September 8, 06:00pm
High Surf Advisory September 8, 12:04am until September 8, 06:00pm
Click here for hazard details and duration
Flood Watch
High Surf Advisory
  •  
    Flood Watch September 8, 12:04am until September 8, 06:00pm
    High Surf Advisory September 8, 12:04am until September 8, 06:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Overnight

    Low: 74 °F

    Heavy Rain

  • Tuesday

    Tuesday: Frequent showers, with thunderstorms also possible after noon. Some of the storms could produce heavy rainfall. High near 86. Calm wind becoming north northeast 5 to 7 mph in the afternoon. 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 73. East wind around 6 mph becoming calm in the evening. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 73 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Showers likely. Mostly cloudy, with a high near 82. Calm wind becoming east around 6 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 82 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely, mainly before midnight. Mostly cloudy, with a low around 71. Calm wind becoming east around 5 mph after midnight. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 71 °F

    Showers
    Likely

  • Thursday

    Thursday: Showers likely, mainly before noon. Mostly cloudy, with a high near 80. East wind 3 to 6 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 80 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Scattered showers, mainly before midnight. Mostly cloudy, with a low around 70. Light northeast wind. Chance of precipitation is 50%.

    Low: 70 °F

    Scattered
    Showers then
    Isolated
    Showers

  • Friday

    Friday: Scattered showers. Partly sunny, with a high near 80. East northeast wind around 6 mph becoming calm in the afternoon. Chance of precipitation is 40%.

    High: 80 °F

    Scattered
    Showers

Detailed Forecast

Overnight
Frequent showers. The rain could be heavy at times. Low around 74. Calm wind becoming south around 6 mph. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.
Tuesday
Frequent showers, with thunderstorms also possible after noon. Some of the storms could produce heavy rainfall. High near 86. Calm wind becoming north northeast 5 to 7 mph in the afternoon. 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. East wind around 6 mph becoming calm in the evening. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Showers likely. Mostly cloudy, with a high near 82. Calm wind becoming east around 6 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Showers likely, mainly before midnight. Mostly cloudy, with a low around 71. Calm wind becoming east around 5 mph after midnight. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Showers likely, mainly before noon. Mostly cloudy, with a high near 80. East wind 3 to 6 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Scattered showers, mainly before midnight. Mostly cloudy, with a low around 70. Light northeast wind. Chance of precipitation is 50%.
Friday
Scattered showers. Partly sunny, with a high near 80. East northeast wind around 6 mph becoming calm in the afternoon. Chance of precipitation is 40%.
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 81. Calm wind becoming east northeast 5 to 7 mph. Chance of precipitation is 30%.
Saturday Night
Showers likely. Mostly cloudy, with a low around 70. Light and variable wind. Chance of precipitation is 60%.
Sunday
Scattered showers. Mostly sunny, with a high near 82. Light and variable wind becoming northeast 5 to 9 mph. Chance of precipitation is 40%.
Sunday Night
Scattered showers. Partly cloudy, with a low around 71. Light and variable wind. Chance of precipitation is 50%.
Monday
Scattered showers. Partly sunny, with a high near 83. Calm wind becoming east 5 to 8 mph in the afternoon. Chance of precipitation is 40%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hilo HI
 19.7°N 155.09°W (Elev. 217 ft)
Last Update:
6:01 pm HST Sep 7, 2026
Forecast Valid:
12am HST Sep 8, 2026-6pm HST Sep 14, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation