West Kaua’i

Tonight: Partly cloudy with isolated showers. Lows around 68 near the shore to around 58 above 3000 feet. Light winds. Chance of rain 20 percent.

Tuesday: Mostly sunny. Isolated showers in the morning. Highs 79 to 84 near the shore to around 71 above 3000 feet. East winds up to 10 mph shifting to the south around 10 mph in the afternoon. Chance of rain 20 percent.

Tuesday Night: Mostly clear. Lows around 67 near the shore to around 56 above 3000 feet. Light winds becoming south around 10 mph after midnight.

South Kaua’i

Tonight: Partly cloudy with isolated showers. Lows around 68. North winds up to 10 mph. Chance of rain 20 percent.

Tuesday: Mostly sunny. Highs 78 to 84. Southwest winds up to 10 mph.

Tuesday Night: Mostly clear. Lows around 66. Light winds.

Kaua’i Mountains

Tonight: Mostly cloudy in the evening then becoming partly cloudy. Scattered showers. Lows 60 to 67 in the valleys to around 57 above 4000 feet. Light winds. Chance of rain 40 percent.

Tuesday: Mostly sunny with isolated showers. Highs 73 to 80 in the valleys to around 65 above 4000 feet. Light winds. Chance of rain 20 percent.

Tuesday Night: Partly cloudy. Isolated showers in the evening. Lows 58 to 65 in the valleys to around 55 above 4000 feet. Light winds becoming southwest up to 10 mph after midnight. Chance of rain 20 percent.

North Kaua’i

Tonight: Partly cloudy with isolated showers. Lows 61 to 70. Southeast winds up to 10 mph in the evening becoming light. Chance of rain 20 percent.

Tuesday: Mostly sunny with isolated showers. Highs 74 to 82. Light winds becoming northwest up to 10 mph in the afternoon. Chance of rain 20 percent.

Tuesday Night: Mostly clear. Lows 60 to 68. Light winds becoming southwest up to 10 mph after midnight.

East Kaua’i

Tonight: Haze in the evening. Mostly cloudy with scattered showers in the evening, then partly cloudy with isolated showers after midnight. Lows 62 to 71. Light winds. Chance of rain 40 percent.

Tuesday: Mostly sunny with isolated showers. Highs 73 to 84. Southwest winds up to 10 mph. Chance of rain 20 percent.

Tuesday Night: Mostly clear. Lows 60 to 70. Light winds.

Detailed Forecast

Synopsis

Light winds and fair weather will persist across the state over the next several days. A weak front will approach late Thursday and will bring an increase of showers over the smaller islands on Friday with moisture lingering over the eastern half of the state Friday night into Saturday. Some periods of light to moderate rain is expected especially over windward and mauka areas during this time. A much stronger front is possible early next week.

Short term update

Issued at 817 PM HST Mon Jan 26 2026
No changes need to be made to the forecast this evening. The front that moved through much of the state earlier today has now moved off to the northeast. It has left high relative humidities in its wake, resulting in areas of low clouds over most islands. No showers were seen on radar as of 8:15 PM HST. Tuesday through Wednesday should be mostly dry with light winds allowing sea- breezes in the afternoon and land-breezes overnight. The latest guidance still shows a weak front moving slowly across the state from Thursday night through Saturday night.

Prev discussion

. Issued at 350 PM HST Mon Jan 26 2026
Satellite imagery shows that the front has dissipated, but we are still seeing some lingering clouds and some light showers this afternoon for parts of Oahu and Kauai. For rest of the day and tonight, we will continue to see some moisture linger around the western half of the state with some clouds and possibly a few showers. Otherwise for the eastern half of the state, any clouds this afternoon should be on the decrease this evening and tonight as land breezes develop.
From Tuesday through Thursday, we should see a fair weather pattern due to a ridge of high pressure over the state. Light winds will allow sea breezes to develop by late morning, which should allow for some afternoon clouds over interior and mountain areas. For the most part, it should mainly be just afternoon cloud build ups, but a few light showers can't be ruled out each afternoon.
Around Thursday night, global models are in fairly good agreement with a weak front approaching from the northwest and pushing through the smaller islands on Friday. Models are showing the front stalling out and weakening over parts of Maui County and the Big Island Friday night into Saturday. Shower activity will generally increase across many areas, but the most frequent shower activity will be confined to windward and mauka areas, where brief periods of some moderate rainfall will be possible. The threat for heavy rain or thunderstorms will be minimal due to stable conditions aloft during this time.
In the extended, long range models are showing a deep upper level trough developing over the area early next week with a strong cold front making its way through the state. At this time, the front is looking progressive and will likely bring a quick shot of heavy rain and thunderstorms. Stay tuned for more updates.

Aviation

Issued at 817 PM HST Mon Jan 26 2026
Moisture along the remnants of a front will gradually lift to the north tonight as gentle to moderate southeasterly winds develop. The front stalled this morning and brought widespread MVFR conditions to windward and northern terrain of Kauai, Oahu, and Molokai. Conditions have improved on Molokai as the front started dissipating, but AIRMET Sierra for mountain obscuration remains in effect on Oahu and Kauai. As high pressure moves northeast of the state tonight, the gentle to moderate trades will veer out of the southeast, pushing remnant frontal moisture northward and improving conditions on Oahu and Kauai. AIRMET Sierra may be lifted as early as late afternoon on Oahu and should be dropped everywhere by midnight. On Maui and Big Island, VFR will prevail.
On Tuesday, a surface ridge will develop over the island chain and drive gentle to moderate southeast to south winds. Some interior clouds and isolated showers will form in the afternoon, but VFR will likely dominate.

Marine

Issued at 817 PM HST Mon Jan 26 2026
Easterly trades will begin to veer southeast overnight and persist across the eastern end of the state through the second half of the week. Meanwhile, winds over the western end of the state will veer to the south-southwest through Tuesday as the surface ridge settles southward over the islands in response to a progressive pattern featuring a couple of fronts moving through the region. The first front is expected to pass north of the state during the midweek period, while a second front could reach the Kauai waters by Friday. While most coastal areas will experience typical overnight land breezes and afternoon sea breezes, terrain- induced accelerations could lead to brief periods of locally enhanced winds where the flow becomes channeled parallel to the coast.
Surf along north- and west-facing shores will trend upward early Tuesday through midweek as a fresh, medium-period northwest swell arrives. This swell was generated by a broad storm-force low tracking eastward near the Aleutians over the weekend, and surf may reach advisory levels by late Tuesday before gradually easing Wednesday into Thursday.
A larger northwest swell is expected later this week from a broad and complex low over the far northwest Pacific. Latest analysis and satellite imagery show a 966 mb low centered east of the Kurils, with a large area of gale- to storm-force winds directed toward the islands from the west-northwest to northwest (290 to 320 degrees). This swell will begin building down the island chain Thursday and could become a long-duration event, with a peak centered around the Friday through Saturday time frame. Heights will exceed advisory levels by late Thursday afternoon, then exceed warning levels Friday into Saturday.
Surf along east-facing shores will ease into Tuesday due to a combination of the local winds shifting southerly and the lack of trades upstream of the state.
South-facing shore surf may trend up slightly Tuesday as a result of a small, background long-period south swell. This swell will ease by mid week.

HFO Watches/Warnings/Advisories

None.

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Data Courtesy of NOAA.gov