National Weather Service Forecast for: Waipahu HI
Issued by: National Weather Service Honolulu, HI
Updated: 6:01 pm HST Dec 19, 2025
 
Tonight

Tonight: 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 71. Light north northeast wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Heavy Rain

 Saturday

Saturday: Scattered showers. Partly sunny, with a high near 82. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Scattered
Showers

 Saturday
Night
Saturday Night: Mostly cloudy, with a low around 72. East northeast wind 5 to 8 mph.
Mostly Cloudy

 Sunday

Sunday: Partly sunny, with a high near 81. East wind 8 to 13 mph.
Partly Sunny

 Sunday
Night
Sunday Night: Mostly cloudy, with a low around 72. Breezy, with an east northeast wind 13 to 15 mph, with gusts as high as 20 mph.
Mostly Cloudy
then Mostly
Cloudy and
Breezy
 Monday

Monday: Isolated showers after noon. Partly sunny, with a high near 81. Breezy, with an east wind around 15 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Breezy.
Partly Sunny
then Isolated
Showers
 Monday
Night
Monday Night: Mostly cloudy, with a low around 72. Breezy, with an east northeast wind 15 to 17 mph, with gusts as high as 24 mph.
Mostly Cloudy
and Breezy

 Tuesday

Tuesday: Mostly cloudy, with a high near 79. Breezy, with an east northeast wind 16 to 20 mph, with gusts as high as 28 mph.
Mostly Cloudy
and Breezy

 Tuesday
Night
Tuesday Night: Mostly cloudy, with a low around 70. Breezy, with an east northeast wind around 16 mph, with gusts as high as 23 mph.
Mostly Cloudy
and Breezy
Lo 71 °F Hi 82 °F Lo 72 °F Hi 81 °F Lo 72 °F Hi 81 °F Lo 72 °F Hi 79 °F Lo 70 °F

 

Tonight
 
 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 71. Light north northeast wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
 
 Scattered showers. Partly sunny, with a high near 82. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
 
 Mostly cloudy, with a low around 72. East northeast wind 5 to 8 mph.
Sunday
 
 Partly sunny, with a high near 81. East wind 8 to 13 mph.
Sunday Night
 
 Mostly cloudy, with a low around 72. Breezy, with an east northeast wind 13 to 15 mph, with gusts as high as 20 mph.
Monday
 
 Isolated showers after noon. Partly sunny, with a high near 81. Breezy, with an east wind around 15 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Monday Night
 
 Mostly cloudy, with a low around 72. Breezy, with an east northeast wind 15 to 17 mph, with gusts as high as 24 mph.
Tuesday
 
 Mostly cloudy, with a high near 79. Breezy, with an east northeast wind 16 to 20 mph, with gusts as high as 28 mph.
Tuesday Night
 
 Mostly cloudy, with a low around 70. Breezy, with an east northeast wind around 16 mph, with gusts as high as 23 mph.
Wednesday
 
 Partly sunny, with a high near 80. Breezy, with an east wind around 15 mph, with gusts as high as 21 mph.
Wednesday Night
 
 Partly cloudy, with a low around 69. East wind 10 to 14 mph, with gusts as high as 18 mph.
Christmas Day
 
 Mostly sunny, with a high near 80. East wind 6 to 10 mph.
Thursday Night
 
 Partly cloudy, with a low around 69. East wind 6 to 8 mph.
Friday
 
 Mostly sunny, with a high near 81. East wind around 6 mph becoming calm in the morning.

 

Forecast from NOAA-NWS for Waipahu HI.