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August 2026 Monthly Rainfall Summary for Hawaii

Current conditions at

Hilo, Hilo International Airport (PHTO)

Lat: 19.72°NLon: 155.06°WElev: 36ft.

Partly Cloudy

82°F

28°C

Humidity	63%
Wind Speed	NE 9 mph
Barometer	29.95 in (1013.9 mb)
Dewpoint	68°F (20°C)
Visibility	10.00 mi
Heat Index	85°F (29°C)
Last update	5 Oct 1:53 pm HST

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

3 Miles SW Wainaku HI

This Afternoon
High: 77 °F
Scattered
Showers
Tonight
Low: 67 °F
Scattered
Showers
Tuesday
High: 78 °F
Scattered
Showers then
Partly Sunny
Tuesday Night
Low: 68 °F
Isolated
Showers then
Partly Cloudy
Wednesday
High: 80 °F
Mostly Sunny
Wednesday Night
Low: 70 °F
Mostly Clear
Thursday
High: 81 °F
Sunny then
Isolated
Showers
Thursday Night
Low: 71 °F
Partly Cloudy
Friday
High: 81 °F
Mostly Sunny
then Isolated
Showers

Detailed Forecast

This Afternoon

Scattered showers. Partly sunny, with a high near 77. North northwest wind 7 to 9 mph becoming northeast. Chance of precipitation is 40%.

Tonight

Scattered showers. Mostly cloudy, with a low around 67. North northeast wind 5 to 7 mph becoming light and variable after midnight. Chance of precipitation is 40%.

Tuesday

Scattered showers before noon. Partly sunny, with a high near 78. Light and variable wind. Chance of precipitation is 30%.

Tuesday Night

Isolated showers before midnight. Partly cloudy, with a low around 68. Light and variable wind. Chance of precipitation is 20%.

Wednesday

Mostly sunny, with a high near 80. East southeast wind 3 to 6 mph.

Wednesday Night

Mostly clear, with a low around 70. South southwest wind around 6 mph.

Thursday

Isolated showers after noon. Mostly sunny, with a high near 81. Southeast wind 6 to 10 mph. Chance of precipitation is 20%.

Thursday Night

Partly cloudy, with a low around 71. South wind around 8 mph.