National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Hilo, Hilo International Airport (PHTO)

Lat: 19.72°NLon: 155.06°WElev: 36ft.

Overcast

84°F

29°C

Humidity 77%
Wind Speed E 17 mph
Barometer 29.87 in (1011.5 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index93°F (34°C)
Last update 9 Sep 11:53 am HST
Extended Forecast for

Hilo International Airport HI

Flood Watch September 9, 12:53pm until September 9, 06:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch September 9, 12:53pm until September 9, 06:00pm

    NOW until 6:00pm Wed

    Flood Watch

  • This Afternoon

    High: 83 °F

    Heavy Rain

  • Tonight

    Tonight: Showers likely. Mostly cloudy, with a low around 73. East southeast wind 5 to 8 mph becoming calm in the evening. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 73 °F

    Showers
    Likely

  • Thursday

    Thursday: Showers likely, mainly before noon. Mostly cloudy, with a high near 80. Calm wind becoming northeast 5 to 9 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 80 °F

    Showers
    Likely then
    Isolated
    Showers

  • Thursday Night

    Thursday Night: Scattered showers. Mostly cloudy, with a low around 72. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 72 °F

    Scattered
    Showers

  • Friday

    Friday: Scattered showers. Partly sunny, with a high near 80. Calm wind becoming east northeast around 6 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 80 °F

    Scattered
    Showers

  • Friday Night

    Friday Night: Scattered showers. Mostly cloudy, with a low around 71. West wind around 6 mph becoming calm after midnight. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 71 °F

    Scattered
    Showers

  • Saturday

    Saturday: Scattered showers. Partly sunny, with a high near 81. East wind around 6 mph becoming calm in the afternoon. Chance of precipitation is 30%.

    High: 81 °F

    Scattered
    Showers

  • Saturday Night

    Saturday Night: Showers likely, mainly before midnight. Mostly cloudy, with a low around 72. Light and variable wind. Chance of precipitation is 60%.

    Low: 72 °F

    Showers
    Likely then
    Isolated
    Showers

Detailed Forecast

This Afternoon
Showers likely and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Mostly cloudy, with a high near 83. East southeast wind around 8 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Showers likely. Mostly cloudy, with a low around 73. East southeast wind 5 to 8 mph becoming calm in the evening. Chance of precipitation is 70%. 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 northeast 5 to 9 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Scattered showers. Mostly cloudy, with a low around 72. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Scattered showers. Partly sunny, with a high near 80. Calm wind becoming east northeast around 6 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Scattered showers. Mostly cloudy, with a low around 71. West wind around 6 mph becoming calm after midnight. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Scattered showers. Partly sunny, with a high near 81. East wind around 6 mph becoming calm in the afternoon. Chance of precipitation is 30%.
Saturday Night
Showers likely, mainly before midnight. Mostly cloudy, with a low around 72. Light and variable wind. Chance of precipitation is 60%.
Sunday
Scattered showers, mainly after noon. Mostly sunny, with a high near 82. Calm wind becoming north northeast around 6 mph in the afternoon. Chance of precipitation is 40%.
Sunday Night
Scattered showers before midnight. Partly cloudy, with a low around 72. Northwest wind around 5 mph becoming calm after midnight. Chance of precipitation is 50%.
Monday
Scattered showers. Partly sunny, with a high near 83. Calm wind becoming east around 6 mph in the afternoon. Chance of precipitation is 40%.
Monday Night
Scattered showers. Partly cloudy, with a low around 73. Light and variable wind becoming west southwest 5 to 7 mph after midnight. Chance of precipitation is 50%.
Tuesday
Scattered showers. Partly sunny, with a high near 84. West southwest wind 5 to 7 mph becoming east in the morning. Chance of precipitation is 40%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hilo International Airport HI
 19.72°N 155.09°W (Elev. 95 ft)
Last Update:
10:54 am HST Sep 9, 2026
Forecast Valid:
12pm HST Sep 9, 2026-6pm HST Sep 15, 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