National Weather Service Forecast for: Kapolei HI
Issued by: National Weather Service Honolulu, HI
Updated: 7:09 am HST Mar 19, 2026
 
Today

Today: Showers, mainly after 2pm. High near 80. Southeast wind 8 to 11 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Scattered
Showers then
Showers
 Tonight

Tonight: Showers, with thunderstorms also possible after 8pm. Some of the storms could produce heavy rainfall. Low around 71. East southeast wind 6 to 9 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Heavy Rain

 Friday

Friday: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 79. South wind 6 to 11 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Heavy Rain

 Friday
Night
Friday Night: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 70. South wind 8 to 11 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
Heavy Rain

 Saturday

Saturday: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 78. Light and variable wind becoming south southwest 6 to 11 mph in the afternoon. Chance of precipitation is 100%. New rainfall amounts between 2 and 3 inches possible.
Heavy Rain

 Saturday
Night
Saturday Night: Showers and possibly a thunderstorm before 8pm, then scattered showers and thunderstorms after 8pm. Some of the storms could produce heavy rainfall. Low around 67. South southwest wind 11 to 13 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Heavy Rain
then
Scattered
Showers
 Sunday

Sunday: Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 8am. Cloudy, with a high near 78. Southwest wind 6 to 11 mph becoming light and variable. Chance of precipitation is 60%.
Showers
Likely

 Sunday
Night
Sunday Night: Scattered showers. Cloudy, with a low around 67. North northeast wind 6 to 9 mph. Chance of precipitation is 40%.
Scattered
Showers

 Monday

Monday: Scattered showers, mainly before 8am. Mostly cloudy, with a high near 77. Breezy, with a northeast wind 9 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.
Scattered
Showers and
Breezy
Hi 80 °F Lo 71 °F Hi 79 °F Lo 70 °F Hi 78 °F Lo 67 °F Hi 78 °F Lo 67 °F Hi 77 °F

Flood Watch
 

Today
 
 Showers, mainly after 2pm. High near 80. Southeast wind 8 to 11 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Tonight
 
 Showers, with thunderstorms also possible after 8pm. Some of the storms could produce heavy rainfall. Low around 71. East southeast wind 6 to 9 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Friday
 
 Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 79. South wind 6 to 11 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Friday Night
 
 Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 70. South wind 8 to 11 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
Saturday
 
 Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 78. Light and variable wind becoming south southwest 6 to 11 mph in the afternoon. Chance of precipitation is 100%. New rainfall amounts between 2 and 3 inches possible.
Saturday Night
 
 Showers and possibly a thunderstorm before 8pm, then scattered showers and thunderstorms after 8pm. Some of the storms could produce heavy rainfall. Low around 67. South southwest wind 11 to 13 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Sunday
 
 Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 8am. Cloudy, with a high near 78. Southwest wind 6 to 11 mph becoming light and variable. Chance of precipitation is 60%.
Sunday Night
 
 Scattered showers. Cloudy, with a low around 67. North northeast wind 6 to 9 mph. Chance of precipitation is 40%.
Monday
 
 Scattered showers, mainly before 8am. Mostly cloudy, with a high near 77. Breezy, with a northeast wind 9 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.
Monday Night
 
 Isolated showers before 8pm. Mostly cloudy, with a low around 65. Breezy, with a northeast wind 14 to 16 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Tuesday
 
 Isolated showers. Partly sunny, with a high near 77. Breezy, with an east northeast wind 16 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.
Tuesday Night
 
 Mostly clear, with a low around 66. Breezy, with an east northeast wind 14 to 17 mph, with gusts as high as 24 mph.
Wednesday
 
 Mostly sunny, with a high near 78. Breezy, with an east northeast wind 14 to 18 mph, with gusts as high as 25 mph.

 

Forecast from NOAA-NWS for Kapolei HI.