Hazardous Weather Conditions

Current conditions at

Hilo, Hilo International Airport (PHTO)

Lat: 19.72°NLon: 155.06°WElev: 36ft.

Fair

71°F

22°C

Humidity 90%
Wind Speed W 6 mph
Barometer 29.84 in (1010.2 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 20 Mar 11:53 pm HST
Extended Forecast for

3 Miles ENE Hilo International Airport HI

Flood Watch March 21, 12:40am until March 22, 06:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch March 21, 12:40am until March 22, 06:00pm

    NOW until 6:00pm Sun

    Flood Watch

  • Overnight

    Low: 69 °F

    Heavy Rain

  • Saturday

    Saturday: Isolated showers and thunderstorms. Some of the storms could produce heavy rainfall.  Mostly cloudy, with a high near 84. Calm wind becoming north northwest 5 to 7 mph in the afternoon.  Chance of precipitation is 20%.

    High: 84 °F

    Heavy Rain

  • Saturday Night

    Saturday Night: Scattered showers and thunderstorms, mainly after 8pm. Some of the storms could produce heavy rainfall.  Cloudy, with a low around 69. North northwest wind 5 to 7 mph becoming calm  in the evening.  Chance of precipitation is 30%. New rainfall amounts between three quarters and one inch possible.

    Low: 69 °F

    Heavy Rain

  • Sunday

    Sunday: Scattered showers and thunderstorms, then showers and possibly a thunderstorm after 8am. Some of the storms could produce heavy rainfall.  High near 81. Calm wind becoming east around 6 mph.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 81 °F

    Heavy Rain

  • Sunday Night

    Sunday Night: Showers likely.  Cloudy, with a low around 67. Light and variable wind.  Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 67 °F

    Showers
    Likely

  • Monday

    Monday: Showers likely.  Cloudy, with a high near 77. Calm wind becoming north 5 to 9 mph in the afternoon.  Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 77 °F

    Showers
    Likely

  • Monday Night

    Monday Night: Showers likely, mainly before 8pm.  Mostly cloudy, with a low around 66. North wind 5 to 9 mph.  Chance of precipitation is 70%.

    Low: 66 °F

    Showers
    Likely then
    Scattered
    Showers

  • Tuesday

    Tuesday: Scattered showers.  Partly sunny, with a high near 77. North northeast wind 9 to 13 mph.  Chance of precipitation is 30%.

    High: 77 °F

    Scattered
    Showers

Detailed Forecast

Overnight
Isolated showers and thunderstorms. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 69. Calm wind. Chance of precipitation is 20%.
Saturday
Isolated showers and thunderstorms. Some of the storms could produce heavy rainfall. Mostly cloudy, with a high near 84. Calm wind becoming north northwest 5 to 7 mph in the afternoon. Chance of precipitation is 20%.
Saturday Night
Scattered showers and thunderstorms, mainly after 8pm. Some of the storms could produce heavy rainfall. Cloudy, with a low around 69. North northwest wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 30%. New rainfall amounts between three quarters and one inch possible.
Sunday
Scattered showers and thunderstorms, then showers and possibly a thunderstorm after 8am. Some of the storms could produce heavy rainfall. High near 81. Calm wind becoming east around 6 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Showers likely. Cloudy, with a low around 67. Light and variable wind. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Monday
Showers likely. Cloudy, with a high near 77. Calm wind becoming north 5 to 9 mph in the afternoon. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
Showers likely, mainly before 8pm. Mostly cloudy, with a low around 66. North wind 5 to 9 mph. Chance of precipitation is 70%.
Tuesday
Scattered showers. Partly sunny, with a high near 77. North northeast wind 9 to 13 mph. Chance of precipitation is 30%.
Tuesday Night
Scattered showers. Mostly cloudy, with a low around 66. North wind 8 to 11 mph. Chance of precipitation is 30%.
Wednesday
Scattered showers, mainly after noon. Partly sunny, with a high near 78. North northeast wind 8 to 11 mph. Chance of precipitation is 30%.
Wednesday Night
Scattered showers. Mostly cloudy, with a low around 65. North wind 6 to 8 mph. Chance of precipitation is 30%.
Thursday
Isolated showers. Partly sunny, with a high near 78. North wind 6 to 11 mph. Chance of precipitation is 20%.
Thursday Night
Isolated showers. Mostly cloudy, with a low around 66. North northeast wind 3 to 8 mph. Chance of precipitation is 20%.
Friday
Isolated showers. Partly sunny, with a high near 78. Northeast wind 3 to 8 mph. Chance of precipitation is 20%.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ENE Hilo International Airport HI
 19.72°N 155.02°W (Elev. 16 ft)
10:56 pm HST Mar 20, 2026
12am HST Mar 21, 2026-6pm HST Mar 27, 2026
 
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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