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

78°F

26°C

Humidity 90%
Wind Speed SE 9 mph
Barometer 29.78 in (1008.3 mb)
Dewpoint 75°F (24°C)
Visibility 4.00 mi
Heat Index80°F (27°C)
Last update 6 Sep 4:53 pm HST
Extended Forecast for

2 Miles ESE Keaau HI

Flood Watch September 6, 05:30pm until September 8, 06:00pm
High Surf Advisory September 6, 05:30pm until September 8, 06:00am
Click here for hazard details and duration
Flood Watch
High Surf Advisory
  •  
    Flood Watch September 6, 05:30pm until September 8, 06:00pm
    High Surf Advisory September 6, 05:30pm until September 8, 06:00am

    NOW: Multiple hazards in effect

    Click HERE for Details

  • This Afternoon

    High: 82 °F

    Heavy Rain

  • Tonight

    Tonight: Occasional showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 73. East southeast wind around 5 mph becoming light and variable in the evening. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 73 °F

    Heavy Rain

  • Labor Day

    Labor Day: Frequent showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 83. Light south southeast wind increasing to 6 to 11 mph in the morning. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    High: 83 °F

    Heavy Rain

  • Monday Night

    Monday Night: Frequent showers. The rain could be heavy at times. Low around 75. South wind around 9 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch 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 85. Southeast wind 8 to 11 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 85 °F

    Heavy Rain

  • Tuesday Night

    Tuesday Night: Showers likely. Mostly cloudy, with a low around 74. East southeast wind 3 to 7 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 74 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Frequent showers. The rain could be heavy at times. High near 82. East wind 5 to 8 mph. Chance of precipitation is 90%.

    High: 82 °F

    Showers
    Likely then
    Heavy Rain

  • Wednesday Night

    Wednesday Night: Frequent showers. The rain could be heavy at times. Low around 72. Northeast wind around 6 mph. Chance of precipitation is 80%.

    Low: 72 °F

    Heavy Rain

Detailed Forecast

This Afternoon
Frequent showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 82. East southeast wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Occasional showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 73. East southeast wind around 5 mph becoming light and variable in the evening. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Labor Day
Frequent showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 83. Light south southeast wind increasing to 6 to 11 mph in the morning. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Monday Night
Frequent showers. The rain could be heavy at times. Low around 75. South wind around 9 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday
Frequent showers, with thunderstorms also possible after noon. Some of the storms could produce heavy rainfall. High near 85. Southeast wind 8 to 11 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
Showers likely. Mostly cloudy, with a low around 74. East southeast wind 3 to 7 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
Frequent showers. The rain could be heavy at times. High near 82. East wind 5 to 8 mph. Chance of precipitation is 90%.
Wednesday Night
Frequent showers. The rain could be heavy at times. Low around 72. Northeast wind around 6 mph. Chance of precipitation is 80%.
Thursday
Scattered showers. Partly sunny, with a high near 81. North northeast wind around 8 mph. Chance of precipitation is 40%.
Thursday Night
Scattered showers, mainly before midnight. Partly cloudy, with a low around 70. Light north northwest wind. Chance of precipitation is 40%.
Friday
Scattered showers. Mostly sunny, with a high near 82. Calm wind becoming east northeast 5 to 7 mph in the afternoon. Chance of precipitation is 30%.
Friday Night
Scattered showers. Partly cloudy, with a low around 71. Light west northwest wind. Chance of precipitation is 40%.
Saturday
Scattered showers. Partly sunny, with a high near 82. Light north northeast wind becoming northeast 5 to 9 mph in the afternoon. Chance of precipitation is 30%.
Saturday Night
Scattered showers. Mostly cloudy, with a low around 72. North northeast wind around 7 mph. Chance of precipitation is 50%.
Sunday
Scattered showers. Partly sunny, with a high near 82. North wind around 9 mph. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ESE Keaau HI
 19.61°N 155.02°W (Elev. 236 ft)
Last Update:
4:01 pm HST Sep 6, 2026
Forecast Valid:
5pm HST Sep 6, 2026-6pm HST Sep 13, 2026
 
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Additional Resources

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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