Severe Weather and Heavy Rainfall Potential for the Plains; Coastal Low Across the mid-Atlantic

An upper trough and frontal boundary will focus showers and thunderstorms across portions of the Plains through early Monday; A few severe thunderstorms along with heavy rainfall are expected. Meanwhile, low pressure off the Southeast Coast will bring inclement weather across the mid-Atlantic coast through Monday. This system is forecast to meander off the coast then track inland early this week. Read More >

For More Weather Information:

Honolulu, HI Local Forecast Office

Poipu HI

Marine Point Forecast

[NOTICE]

This Afternoon
High: 87 °F
E 13kt
2ft
Tonight
Low: 75 °F
NE 12kt
2ft
Monday
High: 87 °F
E 13kt
2ft
Monday Night
Low: 76 °F
NE 12kt
2ft
Tuesday
High: 87 °F
ENE 13kt
2ft
Tuesday Night
Low: 76 °F
ENE 13kt
2ft
Wednesday
High: 87 °F
ENE 14kt
2ft
Wednesday Night
Low: 76 °F
ENE 14kt
2ft
Thursday
High: 87 °F
ENE 14kt
2-4ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 6:01 am HST Sep 14, 2025
Forecast Valid: 2pm HST Sep 14, 2025-6pm HST Sep 20, 2025

View Nearby Observations

Detailed Forecast

This Afternoon

E wind around 13 kt. Sunny. N swell 0 ft at 2 seconds. Waves around 2 ft.

Tonight

NE wind 10 to 12 kt. Partly cloudy. N swell 0 ft at 2 seconds. Waves around 2 ft.

Monday

E wind 11 to 13 kt. Isolated showers before noon. N swell 0 ft at 2 seconds. Waves around 2 ft.

Monday Night

NE wind around 12 kt. Scattered showers after midnight. N swell 0 ft. Waves around 2 ft.

Tuesday

ENE wind around 13 kt. Scattered showers. N swell 0 ft. Waves around 2 ft.

Tuesday Night

ENE wind around 13 kt. Showers likely, mainly after midnight. N swell 0 ft. Waves around 2 ft.

Wednesday

ENE wind 12 to 14 kt. Showers likely, mainly before noon. N swell 0 ft. Waves around 2 ft.

Wednesday Night

ENE wind around 14 kt. Scattered showers. N swell 0 ft. Waves around 2 ft.

Thursday

ENE wind around 14 kt. Scattered showers. N swell 0 ft. Waves 2 to 4 ft.

*Notices:

This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.