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March 2026 Severe Weather and Flash Flooding - 3/10 to 3/24

Hazardous Weather Conditions

Current conditions at

Hilo, Hilo International Airport (PHTO)

Lat: 19.72°NLon: 155.06°WElev: 36ft.

Mostly Cloudy

77°F

25°C

Humidity	79%
Wind Speed	S 9 G 17 mph
Barometer	29.97 in (1014.7 mb)
Dewpoint	70°F (21°C)
Visibility	10.00 mi
Heat Index	79°F (26°C)
Last update	8 Apr 10:53 am HST

More Information:

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

Extended Forecast for

Hilo International Airport HI

Flood Watch until April 10, 06:00pm

Click here for hazard details and duration

Flood Watch

Flood Watch until April 10, 06:00pm
NOW until 6:00pm Fri
Flood Watch
Today
High: 79 °F
Heavy Rain
and Breezy
Tonight
Low: 69 °F
Heavy Rain
Thursday
High: 80 °F
Heavy Rain
and Breezy
Thursday Night
Low: 69 °F
Heavy Rain
Friday
High: 79 °F
Heavy Rain
Friday Night
Low: 70 °F
Heavy Rain
Saturday
High: 82 °F
Scattered
Showers then
Showers
Likely
Saturday Night
Low: 71 °F
Showers
Likely then
Isolated
Showers

Detailed Forecast

Today

Showers and possibly a thunderstorm after 4pm. Some of the storms could produce heavy rainfall. High near 79. Breezy, with an east southeast wind 7 to 16 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight

Showers and possibly a thunderstorm before 8pm, then a slight chance of showers and thunderstorms after 8pm. Some of the storms could produce heavy rainfall. Low around 69. South southeast wind 7 to 14 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Thursday

Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 80. Breezy, with a south southeast wind 9 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Thursday Night

Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 69. South southeast wind 6 to 11 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 79. South southeast wind 7 to 11 mph. 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 70. South wind 3 to 7 mph. Chance of precipitation is 50%. New precipitation amounts between a quarter and half of an inch possible.

Saturday

Showers likely, mainly after noon. Cloudy, with a high near 82. East wind around 6 mph becoming calm in the afternoon. Chance of precipitation is 60%.

Saturday Night

Showers likely, mainly before midnight. Cloudy, with a low around 71. Calm wind becoming south around 5 mph after midnight. Chance of precipitation is 60%.

Sunday

Scattered showers. Cloudy, with a high near 82. East wind 5 to 7 mph becoming light and variable in the afternoon. Chance of precipitation is 40%.

Sunday Night

Scattered showers. The rain could be heavy at times. Cloudy, with a low around 69. Light and variable wind. Chance of precipitation is 40%.

Monday

Showers likely. Cloudy, with a high near 81. East wind around 6 mph becoming calm in the afternoon. Chance of precipitation is 60%.

Monday Night

Showers likely. Cloudy, with a low around 69. Light and variable wind becoming west 8 to 13 mph after midnight. Chance of precipitation is 60%.

Tuesday

Scattered showers. Cloudy, with a high near 80. West wind 8 to 13 mph becoming light and variable in the afternoon. Chance of precipitation is 30%.