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

73°F

23°C

Humidity 87%
Wind Speed SE 3 mph
Barometer 29.97 in (1014.6 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 9 Apr 8:53 pm HST
Extended Forecast for

Hilo International Airport HI

Flood Watch April 9, 09:30pm until April 10, 06:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch April 9, 09:30pm until April 10, 06:00pm

    NOW until 6:00pm Fri

    Flood Watch

  • Tonight

    Low: 69 °F

    Heavy Rain

  • Friday

    Friday: Frequent showers and possibly a thunderstorm before 2pm, then scattered showers and thunderstorms after 2pm. Some of the storms could produce heavy rainfall. High near 77. South wind 5 to 9 mph becoming light and variable. Chance of precipitation is 80%. New rainfall amounts between 2 and 3 inches possible.

    High: 77 °F

    Heavy Rain

  • Friday Night

    Friday Night: Scattered showers and thunderstorms. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 70. South southeast wind 5 to 9 mph becoming calm. Chance of precipitation is 50%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 70 °F

    Heavy Rain

  • Saturday

    Saturday: Showers likely, mainly after noon. Mostly cloudy, with a high near 80. Southeast wind around 8 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 80 °F

    Scattered
    Showers then
    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely, mainly before midnight. Mostly cloudy, with a low around 70. South wind around 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 70 °F

    Showers
    Likely then
    Isolated
    Showers

  • Sunday

    Sunday: Scattered showers. Mostly cloudy, with a high near 80. Southeast wind 7 to 10 mph. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 80 °F

    Scattered
    Showers

  • Sunday Night

    Sunday Night: Scattered showers. The rain could be heavy at times. Mostly cloudy, with a low around 69. East southeast wind around 7 mph becoming south in the evening. Chance of precipitation is 40%.

    Low: 69 °F

    Heavy Rain

  • Monday

    Monday: Showers likely, mainly after noon. Mostly cloudy, with a high near 80. South wind 6 to 9 mph becoming east southeast in the morning. Chance of precipitation is 60%.

    High: 80 °F

    Scattered
    Showers then
    Showers
    Likely

Detailed Forecast

Tonight
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 69. South wind around 8 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.
Friday
Frequent showers and possibly a thunderstorm before 2pm, then scattered showers and thunderstorms after 2pm. Some of the storms could produce heavy rainfall. High near 77. South wind 5 to 9 mph becoming light and variable. Chance of precipitation is 80%. New rainfall amounts between 2 and 3 inches possible.
Friday Night
Scattered showers and thunderstorms. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 70. South southeast wind 5 to 9 mph becoming calm. Chance of precipitation is 50%. New precipitation amounts between a half and three quarters of an inch possible.
Saturday
Showers likely, mainly after noon. Mostly cloudy, with a high near 80. Southeast wind around 8 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Showers likely, mainly before midnight. Mostly cloudy, with a low around 70. South wind around 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Scattered showers. Mostly cloudy, with a high near 80. Southeast wind 7 to 10 mph. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Scattered showers. The rain could be heavy at times. Mostly cloudy, with a low around 69. East southeast wind around 7 mph becoming south in the evening. Chance of precipitation is 40%.
Monday
Showers likely, mainly after noon. Mostly cloudy, with a high near 80. South wind 6 to 9 mph becoming east southeast in the morning. Chance of precipitation is 60%.
Monday Night
Showers likely, mainly before midnight. Cloudy, with a low around 70. South wind around 6 mph. Chance of precipitation is 60%.
Tuesday
Isolated showers after noon. Cloudy, with a high near 81. South wind 6 to 8 mph becoming east in the morning. Chance of precipitation is 20%.
Tuesday Night
Scattered showers. Cloudy, with a low around 70. South wind around 6 mph. Chance of precipitation is 30%.
Wednesday
Isolated showers. Mostly cloudy, with a high near 80. East wind 5 to 8 mph becoming calm in the afternoon. Chance of precipitation is 20%.
Wednesday Night
Scattered showers. Cloudy, with a low around 70. Light and variable wind. Chance of precipitation is 30%.
Thursday
Isolated showers. Cloudy, with a high near 79. East wind around 6 mph becoming calm in the afternoon. Chance of precipitation is 20%.
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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:
6:02 pm HST Apr 9, 2026
Forecast Valid:
9pm HST Apr 9, 2026-6pm HST Apr 16, 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