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

85°F

29°C

Humidity 65%
Wind Speed SE 9 mph
Barometer 29.95 in (1014.1 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index91°F (33°C)
Last update 21 Aug 3:53 pm HST
Extended Forecast for

Hilo International Airport HI

Flood Watch August 23, 12:00am until August 24, 06:00pm
Click here for hazard details and duration
Flood Watch

  • Tonight

    Tonight: Scattered showers. Mostly cloudy, with a low around 74. East wind 5 to 8 mph becoming calm in the evening. Chance of precipitation is 40%.

    Low: 74 °F

    Scattered
    Showers

  • Saturday

    Saturday: Showers likely, mainly after noon. Partly sunny, with a high near 85. Calm wind becoming northeast around 6 mph in the afternoon. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 85 °F

    Scattered
    Showers then
    Showers
    Likely

  • Saturday Night

    Saturday Night: Occasional showers. The rain could be heavy at times. Low around 74. Calm wind becoming east northeast 5 to 7 mph after midnight. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 74 °F

    Heavy Rain

  • Sunday

    Sunday: Showers. The rain could be heavy at times. High near 83. Northeast wind 7 to 9 mph. Chance of precipitation is 100%. New precipitation amounts between 3 and 4 inches possible.

    High: 83 °F

    Heavy Rain

  • Sunday Night

    Sunday Night: Showers. The rain could be heavy at times. Low around 74. Southeast wind 6 to 9 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

    Low: 74 °F

    Heavy Rain

  • Monday

    Monday: Showers. The rain could be heavy at times. High near 84. Southeast wind 7 to 11 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 84 °F

    Heavy Rain

  • Monday Night

    Monday Night: Showers likely. Mostly cloudy, with a low around 74. East southeast wind 6 to 10 mph. Chance of precipitation is 60%.

    Low: 74 °F

    Showers
    Likely

  • Tuesday

    Tuesday: Showers likely, mainly before noon. Partly sunny, with a high near 83. East wind 7 to 11 mph. Chance of precipitation is 60%.

    High: 83 °F

    Showers
    Likely then
    Isolated
    Showers

  • Tuesday Night

    Tuesday Night: Scattered showers. Mostly cloudy, with a low around 73. Northeast wind 6 to 10 mph. Chance of precipitation is 40%.

    Low: 73 °F

    Scattered
    Showers

Detailed Forecast

Tonight
Scattered showers. Mostly cloudy, with a low around 74. East wind 5 to 8 mph becoming calm in the evening. Chance of precipitation is 40%.
Saturday
Showers likely, mainly after noon. Partly sunny, with a high near 85. Calm wind becoming northeast around 6 mph in the afternoon. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Occasional showers. The rain could be heavy at times. Low around 74. Calm wind becoming east northeast 5 to 7 mph after midnight. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
Showers. The rain could be heavy at times. High near 83. Northeast wind 7 to 9 mph. Chance of precipitation is 100%. New precipitation amounts between 3 and 4 inches possible.
Sunday Night
Showers. The rain could be heavy at times. Low around 74. Southeast wind 6 to 9 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Monday
Showers. The rain could be heavy at times. High near 84. Southeast wind 7 to 11 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Monday Night
Showers likely. Mostly cloudy, with a low around 74. East southeast wind 6 to 10 mph. Chance of precipitation is 60%.
Tuesday
Showers likely, mainly before noon. Partly sunny, with a high near 83. East wind 7 to 11 mph. Chance of precipitation is 60%.
Tuesday Night
Scattered showers. Mostly cloudy, with a low around 73. Northeast wind 6 to 10 mph. Chance of precipitation is 40%.
Wednesday
Scattered showers, mainly before noon. Partly sunny, with a high near 83. Northeast wind 6 to 10 mph. Chance of precipitation is 30%.
Wednesday Night
Scattered showers. Mostly cloudy, with a low around 72. North northeast wind 5 to 10 mph. Chance of precipitation is 40%.
Thursday
Scattered showers. Partly sunny, with a high near 83. East northeast wind 5 to 8 mph. Chance of precipitation is 30%.
Thursday Night
Scattered showers. Mostly cloudy, with a low around 72. North wind 3 to 8 mph. Chance of precipitation is 40%.
Friday
Scattered showers. Partly sunny, with a high near 83. Light and variable wind becoming east northeast 5 to 9 mph in the afternoon. Chance of precipitation is 30%.
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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:
4:01 pm HST Aug 21, 2026
Forecast Valid:
4pm HST Aug 21, 2026-6pm HST Aug 28, 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