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.

A Few Clouds

76°F

24°C

Humidity 77%
Wind Speed SE 13 mph
Barometer 29.95 in (1014.1 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 9 Apr 8:53 am HST
Extended Forecast for

4 Miles SW Wainaku HI

Flood Watch April 9, 09:53am until April 10, 06:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch April 9, 09:53am until April 10, 06:00pm

    NOW until 6:00pm Fri

    Flood Watch

  • Today

    High: 77 °F

    Heavy Rain
    and Breezy

  • Tonight

    Tonight: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 67. South wind 7 to 13 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.

    Low: 67 °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 74. South wind 5 to 9 mph becoming calm. Chance of precipitation is 80%. New rainfall amounts between 2 and 3 inches possible.

    High: 74 °F

    Heavy Rain

  • Friday Night

    Friday Night: Scattered showers and thunderstorms. Some of the storms could produce heavy rainfall. Cloudy, with a low around 69. South southeast wind 5 to 7 mph becoming calm. Chance of precipitation is 50%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 69 °F

    Heavy Rain

  • Saturday

    Saturday: Showers likely, mainly after noon. Cloudy, with a high near 78. East southeast wind around 6 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 78 °F

    Scattered
    Showers then
    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely, mainly before midnight. Cloudy, with a low around 68. South wind around 6 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 68 °F

    Showers
    Likely then
    Isolated
    Showers

  • Sunday

    Sunday: Showers likely, mainly after noon. Mostly cloudy, with a high near 78. South wind 6 to 8 mph becoming east southeast in the afternoon. Chance of precipitation is 60%.

    High: 78 °F

    Isolated
    Showers then
    Showers
    Likely

  • Sunday Night

    Sunday Night: Scattered showers. The rain could be heavy at times. Cloudy, with a low around 66. East southeast wind around 6 mph becoming south southwest after midnight. Chance of precipitation is 50%.

    Low: 66 °F

    Heavy Rain

Detailed Forecast

Today
Showers likely and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Cloudy, with a high near 77. Breezy, with a south wind 13 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 67. South wind 7 to 13 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 74. South wind 5 to 9 mph becoming calm. 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. Cloudy, with a low around 69. South southeast wind 5 to 7 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. Cloudy, with a high near 78. East southeast wind around 6 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night
Showers likely, mainly before midnight. Cloudy, with a low around 68. South wind around 6 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Showers likely, mainly after noon. Mostly cloudy, with a high near 78. South wind 6 to 8 mph becoming east southeast in the afternoon. Chance of precipitation is 60%.
Sunday Night
Scattered showers. The rain could be heavy at times. Cloudy, with a low around 66. East southeast wind around 6 mph becoming south southwest after midnight. Chance of precipitation is 50%.
Monday
Showers likely, mainly after noon. Cloudy, with a high near 77. South southwest wind 5 to 7 mph becoming east southeast in the morning. Chance of precipitation is 60%.
Monday Night
Showers likely, mainly before midnight. Cloudy, with a low around 68. South wind around 6 mph. Chance of precipitation is 60%.
Tuesday
Scattered showers. Cloudy, with a high near 78. South wind 5 to 7 mph becoming east in the morning. Chance of precipitation is 30%.
Tuesday Night
Scattered showers. Cloudy, with a low around 68. East southeast wind around 6 mph becoming light and variable after midnight. Chance of precipitation is 30%.
Wednesday
Scattered showers. Cloudy, with a high near 78. East wind 5 to 7 mph becoming calm in the afternoon. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Wainaku HI
 19.7°N 155.14°W (Elev. 974 ft)
Last Update:
6:02 am HST Apr 9, 2026
Forecast Valid:
9am HST Apr 9, 2026-6pm HST Apr 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