National Weather Service Forecast for: Wailuku HI
Issued by: National Weather Service Honolulu, HI
Updated: 6:01 pm HST Aug 19, 2026
 
Tonight

Tonight: Isolated showers before midnight. Partly cloudy, with a low around 74. North northwest wind around 6 mph. Chance of precipitation is 20%.
Isolated
Showers

 Thursday

Thursday: Scattered showers after noon. Mostly sunny, with a high near 83. North wind 5 to 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Mostly Sunny
then
Scattered
Showers
 Thursday
Night
Thursday Night: Scattered showers. Mostly cloudy, with a low around 75. North northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Scattered
Showers

 Friday

Friday: Scattered showers. Partly sunny, with a high near 84. Light east wind becoming east northeast 5 to 9 mph in the afternoon. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Scattered
Showers

 Friday
Night
Friday Night: Scattered showers. Partly cloudy, with a low around 76. East northeast wind 9 to 13 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Scattered
Showers

 Saturday

Saturday: Scattered showers, mainly after noon. Partly sunny, with a high near 84. Breezy, with an east northeast wind 13 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Scattered
Showers and
Breezy
 Saturday
Night
Saturday Night: Scattered showers, mainly before midnight. The rain could be heavy at times. Partly cloudy, with a low around 76. Breezy, with an east northeast wind 15 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Heavy Rain
and Breezy

 Sunday

Sunday: Scattered showers. The rain could be heavy at times. Partly sunny, with a high near 83. Breezy, with a northeast wind 18 to 20 mph, with gusts as high as 26 mph. Chance of precipitation is 50%.
Heavy Rain
and Breezy

 Sunday
Night
Sunday Night: Showers likely, mainly after midnight. The rain could be heavy at times. Mostly cloudy, with a low around 76. Breezy, with an east northeast wind 14 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.
Heavy Rain
and Breezy
Lo 74 °F Hi 83 °F Lo 75 °F Hi 84 °F Lo 76 °F Hi 84 °F Lo 76 °F Hi 83 °F Lo 76 °F

 

Tonight
 
 Isolated showers before midnight. Partly cloudy, with a low around 74. North northwest wind around 6 mph. Chance of precipitation is 20%.
Thursday
 
 Scattered showers after noon. Mostly sunny, with a high near 83. North wind 5 to 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
 
 Scattered showers. Mostly cloudy, with a low around 75. North northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Friday
 
 Scattered showers. Partly sunny, with a high near 84. Light east wind becoming east northeast 5 to 9 mph in the afternoon. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
 
 Scattered showers. Partly cloudy, with a low around 76. East northeast wind 9 to 13 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
 
 Scattered showers, mainly after noon. Partly sunny, with a high near 84. Breezy, with an east northeast wind 13 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
 
 Scattered showers, mainly before midnight. The rain could be heavy at times. Partly cloudy, with a low around 76. Breezy, with an east northeast wind 15 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Sunday
 
 Scattered showers. The rain could be heavy at times. Partly sunny, with a high near 83. Breezy, with a northeast wind 18 to 20 mph, with gusts as high as 26 mph. Chance of precipitation is 50%.
Sunday Night
 
 Showers likely, mainly after midnight. The rain could be heavy at times. Mostly cloudy, with a low around 76. Breezy, with an east northeast wind 14 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.
Monday
 
 Showers likely, mainly after noon. The rain could be heavy at times. Mostly cloudy, with a high near 83. East northeast wind around 14 mph, with gusts as high as 18 mph. Chance of precipitation is 60%.
Monday Night
 
 Showers likely. Mostly cloudy, with a low around 76. East northeast wind 11 to 13 mph. Chance of precipitation is 60%.
Tuesday
 
 Scattered showers. Mostly cloudy, with a high near 83. East northeast wind 11 to 13 mph. Chance of precipitation is 50%.
Tuesday Night
 
 Scattered showers. Mostly cloudy, with a low around 75. East northeast wind 10 to 13 mph. Chance of precipitation is 40%.
Wednesday
 
 Scattered showers. Partly sunny, with a high near 82. East northeast wind 10 to 13 mph. Chance of precipitation is 40%.

 

Forecast from NOAA-NWS for Wailuku HI.