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

72°F

22°C

Humidity 91%
Wind Speed Calm
Barometer 29.89 in (1012.0 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 18 Mar 8:53 pm HST
Extended Forecast for

Hilo International Airport HI

Flood Watch March 19, 06:00pm until March 22, 06:00pm
Click here for hazard details and duration
Flood Watch

  • Tonight

    Tonight: Scattered showers. Mostly cloudy, with a low around 68. Light and variable wind. Chance of precipitation is 50%.

    Low: 68 °F

    Scattered
    Showers

  • Thursday

    Thursday: Scattered showers before 8am, then scattered showers after 2pm. The rain could be heavy at times. Mostly cloudy, with a high near 80. Calm wind becoming east northeast around 5 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 80 °F

    Heavy Rain

  • Thursday Night

    Thursday Night: Scattered showers before 8pm. The rain could be heavy at times. Mostly cloudy, with a low around 70. Calm wind becoming south around 5 mph after midnight. Chance of precipitation is 40%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 70 °F

    Heavy Rain
    then Mostly
    Cloudy

  • Friday

    Friday: Isolated showers and thunderstorms after 8am. Mostly cloudy, with a high near 81. South wind around 5 mph becoming calm in the afternoon. Chance of precipitation is 20%.

    High: 81 °F

    Isolated
    T-storms

  • Friday Night

    Friday Night: Isolated showers and thunderstorms. Cloudy, with a low around 70. Light south wind. Chance of precipitation is 20%.

    Low: 70 °F

    Isolated
    T-storms

  • Saturday

    Saturday: Isolated showers and thunderstorms. Some of the storms could produce heavy rainfall. Mostly cloudy, with a high near 82. Light and variable wind. Chance of precipitation is 20%.

    High: 82 °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 70. Calm wind. Chance of precipitation is 30%.

    Low: 70 °F

    Heavy Rain

  • Sunday

    Sunday: Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 8am. Some of the storms could produce heavy rainfall. Cloudy, with a high near 81. Light and variable wind. Chance of precipitation is 70%.

    High: 81 °F

    Heavy Rain

  • Sunday Night

    Sunday Night: Showers likely. Cloudy, with a low around 69. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 70%.

    Low: 69 °F

    Showers
    Likely

Detailed Forecast

Tonight
Scattered showers. Mostly cloudy, with a low around 68. Light and variable wind. Chance of precipitation is 50%.
Thursday
Scattered showers before 8am, then scattered showers after 2pm. The rain could be heavy at times. Mostly cloudy, with a high near 80. Calm wind becoming east northeast around 5 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Scattered showers before 8pm. The rain could be heavy at times. Mostly cloudy, with a low around 70. Calm wind becoming south around 5 mph after midnight. Chance of precipitation is 40%. New precipitation amounts between a half and three quarters of an inch possible.
Friday
Isolated showers and thunderstorms after 8am. Mostly cloudy, with a high near 81. South wind around 5 mph becoming calm in the afternoon. Chance of precipitation is 20%.
Friday Night
Isolated showers and thunderstorms. Cloudy, with a low around 70. Light south 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 82. Light and variable wind. 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 70. Calm wind. Chance of precipitation is 30%.
Sunday
Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 8am. Some of the storms could produce heavy rainfall. Cloudy, with a high near 81. Light and variable wind. Chance of precipitation is 70%.
Sunday Night
Showers likely. Cloudy, with a low around 69. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 70%.
Monday
Occasional showers. The rain could be heavy at times. High near 77. North wind 5 to 9 mph. Chance of precipitation is 80%.
Monday Night
Occasional showers. The rain could be heavy at times. Low around 67. North northwest wind 6 to 9 mph. Chance of precipitation is 80%.
Tuesday
A 50 percent chance of showers. Cloudy, with a high near 77. Northeast wind 7 to 9 mph.
Tuesday Night
Scattered showers. Mostly cloudy, with a low around 67. North wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 50%.
Wednesday
Scattered showers. Mostly cloudy, with a high near 77. East wind 3 to 8 mph. Chance of precipitation is 50%.
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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:
6:01 pm HST Mar 18, 2026
Forecast Valid:
9pm HST Mar 18, 2026-6pm HST Mar 25, 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