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.

Rain

77°F

25°C

Humidity 94%
Wind Speed Calm
Barometer 30.01 in (1016.0 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 17 Sep 11:53 pm HST
Extended Forecast for

Hilo International Airport HI

Flood Watch September 18, 12:44am until September 18, 06:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch September 18, 12:44am until September 18, 06:00am

    NOW until 6:00am Fri

    Flood Watch

  • Overnight

    Low: 74 °F

    Scattered
    Showers

  • Friday

    Friday: Showers likely, mainly before noon. Partly sunny, with a high near 84. Calm wind becoming east northeast 5 to 9 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 84 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Showers likely, mainly after midnight. 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

    Isolated
    Showers then
    Showers
    Likely

  • Saturday

    Saturday: Scattered showers. Mostly cloudy, with a high near 84. Calm wind becoming east 5 to 7 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    High: 84 °F

    Scattered
    Showers

  • Saturday Night

    Saturday Night: Scattered showers. Mostly cloudy, with a low around 74. East northeast wind 3 to 5 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 74 °F

    Scattered
    Showers

  • Sunday

    Sunday: Scattered showers, mainly before noon. Mostly cloudy, with a high near 84. Northeast wind 5 to 9 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    High: 84 °F

    Scattered
    Showers then
    Isolated
    Showers

  • Sunday Night

    Sunday Night: Showers likely, mainly after midnight. Mostly cloudy, with a low around 74. North wind 5 to 7 mph. Chance of precipitation is 60%.

    Low: 74 °F

    Showers
    Likely

  • Monday

    Monday: Scattered showers. Partly sunny, with a high near 84. North northeast wind 6 to 8 mph. Chance of precipitation is 50%.

    High: 84 °F

    Scattered
    Showers

Detailed Forecast

Overnight
Scattered showers. Mostly cloudy, with a low around 74. Calm wind. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Showers likely, mainly before noon. Partly sunny, with a high near 84. Calm wind becoming east northeast 5 to 9 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Showers likely, mainly after midnight. 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.
Saturday
Scattered showers. Mostly cloudy, with a high near 84. Calm wind becoming east 5 to 7 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Scattered showers. Mostly cloudy, with a low around 74. East northeast wind 3 to 5 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Scattered showers, mainly before noon. Mostly cloudy, with a high near 84. Northeast wind 5 to 9 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
Showers likely, mainly after midnight. Mostly cloudy, with a low around 74. North wind 5 to 7 mph. Chance of precipitation is 60%.
Monday
Scattered showers. Partly sunny, with a high near 84. North northeast wind 6 to 8 mph. Chance of precipitation is 50%.
Monday Night
Occasional showers. Low around 74. Northwest wind around 6 mph. Chance of precipitation is 80%.
Tuesday
Occasional showers. High near 84. North wind around 6 mph becoming calm in the afternoon. Chance of precipitation is 80%.
Tuesday Night
Occasional showers. Low around 74. Light and variable wind. Chance of precipitation is 90%.
Wednesday
Showers likely. Mostly cloudy, with a high near 83. Light east northeast wind. Chance of precipitation is 70%.
Wednesday Night
Occasional showers. Low around 74. Calm wind becoming east northeast around 6 mph after midnight. Chance of precipitation is 80%.
Thursday
Occasional showers. High near 83. East wind 5 to 9 mph. Chance of precipitation is 80%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hilo International Airport HI
 19.72°N 155.04°W (Elev. 39 ft)
Last Update:
6:01 pm HST Sep 17, 2026
Forecast Valid:
12am HST Sep 18, 2026-6pm HST Sep 24, 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