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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.

Partly Cloudy

79°F

26°C

Humidity	67%
Wind Speed	S 15 G 25 mph
Barometer	29.94 in (1013.7 mb)
Dewpoint	67°F (19°C)
Visibility	10.00 mi
Heat Index	81°F (27°C)
Last update	8 Apr 12:53 pm HST

More Information:

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

Extended Forecast for

Hilo 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
This Afternoon
High: 77 °F
Heavy Rain
Tonight
Low: 68 °F
Heavy Rain
Thursday
High: 78 °F
Heavy Rain
Thursday Night
Low: 68 °F
Heavy Rain
Friday
High: 77 °F
Heavy Rain
Friday Night
Low: 69 °F
Heavy Rain
Saturday
High: 80 °F
Scattered
Showers then
Showers
Likely
Saturday Night
Low: 69 °F
Showers
Likely then
Isolated
Showers

Detailed Forecast

This Afternoon

Showers and possibly a thunderstorm after 4pm. Some of the storms could produce heavy rainfall. High near 77. East southeast wind 6 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.

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 68. South southeast wind 6 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

Thursday

Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 78. South southeast wind 6 to 14 mph, with gusts as high as 18 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 68. South southeast wind 5 to 10 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 77. South southeast wind 6 to 10 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 69. South wind 3 to 6 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 80. 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 69. Calm wind becoming south southwest around 5 mph after midnight. Chance of precipitation is 60%.

Sunday

Scattered showers. Cloudy, with a high near 80. East wind around 6 mph becoming calm in the afternoon. Chance of precipitation is 40%.

Sunday Night

Scattered showers. The rain could be heavy at times. Cloudy, with a low around 68. Light southwest wind. Chance of precipitation is 40%.

Monday

Showers likely. Cloudy, with a high near 79. East wind around 6 mph becoming calm in the afternoon. Chance of precipitation is 60%.

Monday Night

Showers likely. Cloudy, with a low around 68. Light and variable wind becoming west northwest 5 to 10 mph after midnight. Chance of precipitation is 60%.

Tuesday

Scattered showers. Cloudy, with a high near 78. West northwest wind 5 to 10 mph becoming light and variable in the afternoon. Chance of precipitation is 30%.