National Weather Service Forecast for: Hilo International Airport HI
Issued by: National Weather Service Honolulu, HI
Updated: 4:01 am HST Apr 6, 2026
 
Overnight

Overnight: Scattered showers. Mostly cloudy, with a low around 65. South southwest wind around 6 mph. Chance of precipitation is 30%.
Scattered
Showers
 Monday

Monday: Isolated showers. Mostly sunny, with a high near 77. South southwest wind 6 to 9 mph becoming east southeast in the morning. Chance of precipitation is 20%.
Isolated
Showers
 Monday
Night
Monday Night: Scattered showers. Mostly cloudy, with a low around 67. South wind around 6 mph. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.
Scattered
Showers
 Tuesday

Tuesday: Occasional showers. High near 76. Southeast wind around 7 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.
Showers
 Tuesday
Night
Tuesday Night: Showers likely and possibly a thunderstorm before midnight, then scattered showers and thunderstorms after midnight. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 68. South southeast wind 6 to 8 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Heavy Rain
 Wednesday

Wednesday: Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after noon. Some of the storms could produce heavy rainfall. Partly sunny, with a high near 78. South southeast wind around 11 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Heavy Rain
 Wednesday
Night
Wednesday Night: Showers likely and possibly a thunderstorm before midnight, then scattered showers and thunderstorms after midnight. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 69. South wind around 10 mph. Chance of precipitation is 60%.
Heavy Rain
 Thursday

Thursday: Scattered showers and thunderstorms. Some of the storms could produce heavy rainfall. Partly sunny, with a high near 77. South southeast wind around 13 mph. Chance of precipitation is 50%.
Heavy Rain
 Thursday
Night
Thursday Night: Showers likely and possibly a thunderstorm before midnight, then scattered showers. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 69. South wind around 8 mph. Chance of precipitation is 60%.
Heavy Rain
Lo 65 °F Hi 77 °F Lo 67 °F Hi 76 °F Lo 68 °F Hi 78 °F Lo 69 °F Hi 77 °F Lo 69 °F

Special Weather Statement
Hydrologic Outlook
 

Overnight
 
 Scattered showers. Mostly cloudy, with a low around 65. South southwest wind around 6 mph. Chance of precipitation is 30%.
Monday
 
 Isolated showers. Mostly sunny, with a high near 77. South southwest wind 6 to 9 mph becoming east southeast in the morning. Chance of precipitation is 20%.
Monday Night
 
 Scattered showers. Mostly cloudy, with a low around 67. South wind around 6 mph. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
 
 Occasional showers. High near 76. Southeast wind around 7 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.
Tuesday Night
 
 Showers likely and possibly a thunderstorm before midnight, then scattered showers and thunderstorms after midnight. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 68. South southeast wind 6 to 8 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
 
 Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after noon. Some of the storms could produce heavy rainfall. Partly sunny, with a high near 78. South southeast wind around 11 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
 
 Showers likely and possibly a thunderstorm before midnight, then scattered showers and thunderstorms after midnight. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 69. South wind around 10 mph. Chance of precipitation is 60%.
Thursday
 
 Scattered showers and thunderstorms. Some of the storms could produce heavy rainfall. Partly sunny, with a high near 77. South southeast wind around 13 mph. Chance of precipitation is 50%.
Thursday Night
 
 Showers likely and possibly a thunderstorm before midnight, then scattered showers. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 69. South wind around 8 mph. Chance of precipitation is 60%.
Friday
 
 Scattered showers and thunderstorms. Some of the storms could produce heavy rainfall. Mostly cloudy, with a high near 78. South southeast wind around 7 mph. Chance of precipitation is 50%.
Friday Night
 
 Scattered showers and thunderstorms. Some of the storms could produce heavy rainfall. Partly cloudy, with a low around 69. South wind around 6 mph. Chance of precipitation is 40%.
Saturday
 
 Scattered showers. Mostly sunny, with a high near 80. South southeast wind around 6 mph becoming light and variable in the afternoon. Chance of precipitation is 40%.
Saturday Night
 
 Scattered showers. Partly cloudy, with a low around 69. Light southwest wind. Chance of precipitation is 30%.
Sunday
 
 Scattered showers. Partly sunny, with a high near 79. Light and variable wind becoming south southeast around 6 mph in the afternoon. Chance of precipitation is 50%.

 

Forecast from NOAA-NWS for Hilo International Airport HI.