Current conditions at

Hilo, Hilo International Airport (PHTO)

Lat: 19.72°NLon: 155.06°WElev: 36ft.

Overcast

77°F

25°C

Humidity 94%
Wind Speed Calm
Barometer 29.85 in (1010.7 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 9 Sep 12:53 am HST
Extended Forecast for

4 Miles E Hilo International Airport HI

Flood Watch September 9, 01:18am until September 9, 06:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch September 9, 01:18am until September 9, 06:00pm

    NOW until 6:00pm Wed

    Flood Watch

  • Overnight

    Low: 76 °F

    Scattered
    Showers

  • Wednesday

    Wednesday: Scattered showers, with thunderstorms also possible after noon. Some of the storms could produce heavy rainfall.  Partly sunny, with a high near 84. Calm wind becoming east southeast 5 to 8 mph.  Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 84 °F

    Heavy Rain

  • Wednesday Night

    Wednesday Night: Showers likely.  Mostly cloudy, with a low around 74. Light and variable wind.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 74 °F

    Showers
    Likely

  • Thursday

    Thursday: Showers likely, mainly before noon.  Partly sunny, with a high near 82. Calm wind becoming east northeast 5 to 8 mph in the afternoon.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 82 °F

    Showers
    Likely then
    Isolated
    Showers

  • Thursday Night

    Thursday Night: Scattered showers, mainly before midnight.  Partly cloudy, with a low around 73. Northeast wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 73 °F

    Scattered
    Showers

  • Friday

    Friday: Scattered showers.  Mostly sunny, with a high near 83. East northeast wind 5 to 7 mph becoming calm  in the afternoon.  Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 83 °F

    Scattered
    Showers

  • Friday Night

    Friday Night: Scattered showers, mainly before midnight.  Mostly cloudy, with a low around 72. Calm wind becoming west around 5 mph.  Chance of precipitation is 50%.

    Low: 72 °F

    Scattered
    Showers then
    Isolated
    Showers

  • Saturday

    Saturday: Scattered showers.  Partly sunny, with a high near 83. Calm wind becoming northeast 5 to 8 mph.  Chance of precipitation is 30%.

    High: 83 °F

    Scattered
    Showers

Detailed Forecast

Overnight
Scattered showers. Mostly cloudy, with a low around 76. Calm wind. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Scattered showers, with thunderstorms also possible after noon. Some of the storms could produce heavy rainfall. Partly sunny, with a high near 84. Calm wind becoming east southeast 5 to 8 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 74. Light and variable wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Showers likely, mainly before noon. Partly sunny, with a high near 82. Calm wind becoming east northeast 5 to 8 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Scattered showers, mainly before midnight. Partly cloudy, with a low around 73. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Scattered showers. Mostly sunny, with a high near 83. East northeast wind 5 to 7 mph becoming calm in the afternoon. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Scattered showers, mainly before midnight. Mostly cloudy, with a low around 72. Calm wind becoming west around 5 mph. Chance of precipitation is 50%.
Saturday
Scattered showers. Partly sunny, with a high near 83. Calm wind becoming northeast 5 to 8 mph. Chance of precipitation is 30%.
Saturday Night
Showers likely, mainly before midnight. Mostly cloudy, with a low around 73. Calm wind becoming west around 6 mph after midnight. Chance of precipitation is 60%.
Sunday
Scattered showers, mainly after noon. Partly sunny, with a high near 84. West northwest wind 5 to 9 mph becoming north northeast in the morning. Chance of precipitation is 50%.
Sunday Night
Scattered showers. Mostly cloudy, with a low around 74. West wind 6 to 8 mph. Chance of precipitation is 50%.
Monday
Scattered showers. Partly sunny, with a high near 85. Northwest wind 5 to 10 mph becoming northeast in the afternoon. Chance of precipitation is 50%.
Monday Night
Scattered showers. Mostly cloudy, with a low around 75. Northeast wind around 6 mph becoming west in the evening. Chance of precipitation is 50%.
Tuesday
Scattered showers. Partly sunny, with a high near 85. East southeast wind 5 to 8 mph becoming calm in the afternoon. Chance of precipitation is 50%.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles E Hilo International Airport HI
 19.7°N 155.02°W (Elev. 36 ft)
6:02 pm HST Sep 8, 2026
1am HST Sep 9, 2026-6pm HST Sep 15, 2026
 
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Additional Resources

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National Digital Forecast Database