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

Hazardous Weather Conditions

Flood Watch until April 10, 06:00 PM HST

Current conditions at

Hilo, Hilo International Airport (PHTO)

Lat: 19.72°NLon: 155.06°WElev: 36ft.

Overcast

74°F

23°C

Humidity	85%
Wind Speed	SE 5 mph
Barometer	29.95 in (1013.9 mb)
Dewpoint	69°F (21°C)
Visibility	10.00 mi
Last update	9 Apr 7:53 pm HST

More Information:

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

Extended Forecast for

4 Miles WNW Volcano HI

Flood Watch April 9, 08:25pm until April 10, 06:00pm

Click here for hazard details and duration

Flood Watch

Flood Watch April 9, 08:25pm until April 10, 06:00pm
NOW until 6:00pm Fri
Flood Watch
Tonight
Low: 55 °F
Heavy Rain
and Breezy
Friday
High: 64 °F
Heavy Rain
Friday Night
Low: 57 °F
Heavy Rain
Saturday
High: 67 °F
Showers
Likely
Saturday Night
Low: 56 °F
Showers
Likely then
Isolated
Showers
Sunday
High: 67 °F
Heavy Rain
Sunday Night
Low: 56 °F
Showers
Likely then
Isolated
Showers
Monday
High: 66 °F
Isolated
Showers then
Showers
Likely

Detailed Forecast

Tonight

Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 55. Breezy, with a southwest wind 11 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New rainfall amounts between 2 and 3 inches possible.

Friday

Frequent showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 64. South southwest wind 10 to 14 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New rainfall amounts between 3 and 4 inches possible.

Friday Night

Showers likely and possibly a thunderstorm before 8pm, then scattered showers. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 57. Southwest wind 6 to 10 mph. Chance of precipitation is 60%. New precipitation amounts between 1 and 2 inches possible.

Saturday

Showers likely, mainly after noon. Cloudy, with a high near 67. South southeast wind around 7 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

Saturday Night

Showers likely, mainly before midnight. Mostly cloudy, with a low around 56. South wind around 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Sunday

Scattered showers and thunderstorms, then showers likely after noon. Some of the storms could produce heavy rainfall. Mostly cloudy, with a high near 67. South southeast wind 6 to 8 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday Night

Showers likely, mainly before midnight. Cloudy, with a low around 56. South wind 5 to 7 mph. Chance of precipitation is 60%.

Monday

Showers likely, mainly after noon. Cloudy, with a high near 66. South southwest wind 5 to 7 mph becoming east in the afternoon. Chance of precipitation is 60%.

Monday Night

Showers likely before midnight. Cloudy, with a low around 56. East wind around 6 mph becoming light and variable after midnight. Chance of precipitation is 60%.

Tuesday

Scattered showers after noon. Cloudy, with a high near 68. Light and variable wind becoming east southeast 5 to 7 mph in the afternoon. Chance of precipitation is 40%.

Tuesday Night

Scattered showers. Mostly cloudy, with a low around 57. North wind around 7 mph. Chance of precipitation is 40%.

Wednesday

Scattered showers. Mostly cloudy, with a high near 67. North wind 5 to 8 mph becoming east in the morning. Chance of precipitation is 40%.

Wednesday Night

Scattered showers. Mostly cloudy, with a low around 56. North wind 3 to 7 mph. Chance of precipitation is 40%.

Thursday

Scattered showers. Cloudy, with a high near 66. East northeast wind around 8 mph. Chance of precipitation is 40%.