National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Hilo, Hilo International Airport (PHTO)

Lat: 19.72°NLon: 155.06°WElev: 36ft.

Mostly Cloudy

75°F

24°C

Humidity 84%
Wind Speed Vrbl 3 mph
Barometer 29.89 in (1012.1 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 18 Mar 11:53 am HST
Extended Forecast for

Hilo International Airport HI

  • This Afternoon

    This Afternoon: Scattered showers, then showers likely and possibly a thunderstorm after 2pm. Cloudy, with a high near 79. Calm wind. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 79 °F

    Showers
    Likely

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm before 8pm, then scattered showers. Mostly cloudy, with a low around 68. Light and variable wind. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Showers
    Likely

  • Thursday

    Thursday: Scattered showers before 8am, then scattered showers after 2pm. The rain could be heavy at times. Mostly cloudy, with a high near 81. Light and variable wind becoming east northeast around 5 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    High: 81 °F

    Heavy Rain

  • Thursday Night

    Thursday Night: Scattered showers before 8pm. The rain could be heavy at times. Mostly cloudy, with a low around 69. South wind 3 to 6 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 69 °F

    Heavy Rain
    then Mostly
    Cloudy

  • Friday

    Friday: Isolated showers and thunderstorms after 8am. Mostly cloudy, with a high near 82. East southeast wind 3 to 6 mph. Chance of precipitation is 20%.

    High: 82 °F

    Isolated
    T-storms

  • Friday Night

    Friday Night: Isolated showers and thunderstorms. Cloudy, with a low around 69. Light south wind. Chance of precipitation is 20%.

    Low: 69 °F

    Isolated
    T-storms

  • Saturday

    Saturday: Isolated showers and thunderstorms. Cloudy, with a high near 83. Calm wind becoming northwest around 5 mph. Chance of precipitation is 20%.

    High: 83 °F

    Isolated
    T-storms

  • 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. Calm wind. Chance of precipitation is 30%.

    Low: 69 °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. Calm wind becoming west northwest around 5 mph in the afternoon. Chance of precipitation is 70%.

    High: 81 °F

    Heavy Rain

Detailed Forecast

This Afternoon
Scattered showers, then showers likely and possibly a thunderstorm after 2pm. Cloudy, with a high near 79. Calm wind. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers likely and possibly a thunderstorm before 8pm, then scattered showers. Mostly cloudy, with a low around 68. Light and variable wind. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Scattered showers before 8am, then scattered showers after 2pm. The rain could be heavy at times. Mostly cloudy, with a high near 81. Light and variable wind becoming east northeast around 5 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Scattered showers before 8pm. The rain could be heavy at times. Mostly cloudy, with a low around 69. South wind 3 to 6 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Isolated showers and thunderstorms after 8am. Mostly cloudy, with a high near 82. East southeast wind 3 to 6 mph. Chance of precipitation is 20%.
Friday Night
Isolated showers and thunderstorms. Cloudy, with a low around 69. Light south wind. Chance of precipitation is 20%.
Saturday
Isolated showers and thunderstorms. Cloudy, with a high near 83. Calm wind becoming northwest around 5 mph. 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. 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. Calm wind becoming west northwest around 5 mph in the afternoon. Chance of precipitation is 70%.
Sunday Night
Showers likely and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Cloudy, with a low around 68. Northwest wind 3 to 5 mph. Chance of precipitation is 70%.
Monday
Showers likely. The rain could be heavy at times. Cloudy, with a high near 80. North wind 5 to 9 mph. Chance of precipitation is 70%.
Monday Night
Showers likely. The rain could be heavy at times. Cloudy, with a low around 67. North northwest wind 7 to 9 mph. Chance of precipitation is 70%.
Tuesday
A 40 percent chance of showers. Mostly cloudy, with a high near 79. North wind 8 to 11 mph.
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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:
10:10 am HST Mar 18, 2026
Forecast Valid:
12pm HST Mar 18, 2026-6pm HST Mar 24, 2026
 
Forecast Discussion
 
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Additional Resources

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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