Hilo

Tonight: Occasional showers. Lows 60 to 69 near the shore to 51 to 56 at 4000 feet. Northeast winds up to 15 mph. Chance of rain near 100 percent.

Saturday: Mostly cloudy. Numerous showers in the morning, then scattered showers in the afternoon. Highs around 79 near the shore to around 65 at 4000 feet. East winds up to 15 mph. Chance of rain 70 percent.

Saturday Night: Mostly cloudy. Scattered showers in the evening, then numerous showers after midnight. Lows 60 to 69 near the shore to 52 to 58 at 4000 feet. Northeast winds up to 10 mph. Chance of rain 70 percent.

Kona

Tonight: Mostly clear. Isolated showers in the evening. Lows around 71 near the shore to 48 to 53 near 5000 feet. Southwest winds up to 10 mph in the evening becoming light. Chance of rain 20 percent.

Saturday: Mostly sunny. Isolated showers in the afternoon. Highs 82 to 87 near the shore to around 67 near 5000 feet. Light winds. Chance of rain 20 percent.

Saturday Night: Partly cloudy. Isolated showers in the evening. Lows around 72 near the shore to 49 to 54 near 5000 feet. Light winds. Chance of rain 20 percent.

Waimea

Tonight: Mostly cloudy. Breezy. Occasional showers in the evening, then numerous showers after midnight. Lows 61 to 70 near the shore to 54 to 62 near 3000 feet. East winds 10 to 20 mph. Chance of rain 90 percent.

Saturday: Breezy. Partly sunny with scattered showers. Highs around 78 near the shore to 67 to 77 near 3000 feet. East winds 10 to 20 mph. Chance of rain 50 percent.

Saturday Night: Mostly cloudy with scattered showers. Lows 61 to 70 near the shore to 54 to 62 near 3000 feet. East winds 10 to 15 mph. Chance of rain 50 percent.

Kohala

Tonight: Mostly cloudy. Breezy. Occasional showers in the evening, then numerous showers after midnight. Lows 61 to 70 near the shore to 54 to 62 near 3000 feet. East winds 10 to 20 mph. Chance of rain 90 percent.

Saturday: Breezy. Partly sunny with scattered showers. Highs around 78 near the shore to 67 to 77 near 3000 feet. East winds 10 to 20 mph. Chance of rain 50 percent.

Saturday Night: Mostly cloudy with scattered showers. Lows 61 to 70 near the shore to 54 to 62 near 3000 feet. East winds 10 to 15 mph. Chance of rain 50 percent.

South Big Island

Tonight: Mostly clear. Breezy. Isolated showers in the evening. Lows around 74 near the shore to around 53 near 5000 feet. Northeast winds up to 25 mph. Chance of rain 20 percent.

Saturday: Mostly sunny. Breezy. Isolated showers in the afternoon. Highs around 85 near the shore to around 67 near 5000 feet. East winds up to 25 mph increasing to 10 to 25 mph in the afternoon. Chance of rain 20 percent.

Saturday Night: Partly cloudy. Lows around 74 near the shore to around 55 near 5000 feet. Northeast winds 10 to 15 mph.

Puna

Tonight: Occasional showers. Lows 60 to 69 near the shore to 51 to 56 at 4000 feet. Northeast winds up to 15 mph. Chance of rain near 100 percent.

Saturday: Mostly cloudy. Numerous showers in the morning, then scattered showers in the afternoon. Highs around 79 near the shore to around 65 at 4000 feet. East winds up to 15 mph. Chance of rain 70 percent.

Saturday Night: Mostly cloudy. Scattered showers in the evening, then numerous showers after midnight. Lows 60 to 69 near the shore to 52 to 58 at 4000 feet. Northeast winds up to 10 mph. Chance of rain 70 percent.

Waikoloa

Tonight: Mostly clear. Breezy. Isolated showers in the evening. Lows around 72 near the shore to around 52 above 4000 feet. Northeast winds up to 20 mph shifting to the southeast after midnight. Gusts up to 40 mph. Chance of rain 20 percent.

Saturday: Mostly sunny. Breezy. Isolated showers in the afternoon. Highs around 84 near the shore to around 68 above 4000 feet. Northeast winds up to 20 mph shifting to the north in the afternoon. Chance of rain 20 percent.

Saturday Night: Partly cloudy. Lows around 72 near the shore to around 53 above 4000 feet. Light winds becoming northeast up to 10 mph after midnight.

Detailed Forecast

Synopsis

The high pressure ridge north of the islands will keep moderate to locally breezy trade winds blowing across the Hawaii region through Monday. Wind speeds will weaken from Tuesday through Thursday as a weak cold front passes north of the island chain. Trade winds slowly return from Friday into the weekend as the ridge builds back into the region.

Short term update

Moderate trade winds continue with brief passing showers favoring the windward mountain areas through Monday. Lighter winds from Tuesday through Thursday will cause afternoon sea breezes with onshore winds triggered by island surface heating to expand across all islands. Expect interior clouds and a few showers each day in this pattern. Trade winds slowly rebuild across the state from Friday into the weekend.
The afternoon forecast grids look good. No evening updates.

Prev discussion

Issued at 337 PM HST Fri May 1 2026
Benign weather for the foreseeable future as trades deliver showers to windward and mauka areas, mainly overnight. Deeper moisture and a higher/weaker inversion beneath the resident closed upper low will favor comparatively increased coverage over Windward Big Island and possibly Maui through tomorrow. Trades then weaken this weekend into early next week as height falls spread across the Central Pacific. This will cut into shower coverage and make interior zones feel hotter. Extended guidance indicates further weakening of trades next week with potential for a light/variable pattern establishing over the islands as a weak and shallow remnant frontal zone approaches Kauai from the west. Resulting sea breezes in the presence of high stability will produce little or no afternoon shower activity except perhaps over Kauai where moisture along the aforementioned frontal zone will be slightly deeper.

Aviation

Breezy easterly trades will persist into Saturday, with clouds and showers favoring windward and mauka locations. Expect MVFR CIGS/VSBYS in showers moving through, particularly through the overnight and early morning hours. This has resulted in AIRMET Sierra for mountain obscuration over windward areas of Oahu, Molokai, Maui, and the Big Island. Elsewhere, VFR conditions will prevail overnight into Saturday. A return of VFR conditions are anticipated statewide through the day Saturday as the trades begin to ease and the upper-level trough lifts away from the region.
AIRMET Tango remains in effect for tempo moderate turbulence across leeward sides of all islands below 8000 feet due to the breezy trade winds. These conditions may improve tomorrow as winds begin to weaken.

Marine

A high pressure ridge remains to the north of the islands, driving trade winds to the region. The Small Craft Advisory is in place for the typical windier waters near Maui County and the Big Island through tonight. The ridge will weaken through the weekend as a front passes north of the islands. Winds in turn will weaken, and further ease Tuesday into the middle of the week.
An incoming northwesterly swell is currently filling in tonight, and will build and peak tomorrow. Surf heights could approach advisory levels during the peak, then is expected to gradually ease through the weekend. Another, slightly smaller northwest swell is expected early next week, maintaining elevated surf along north and west- facing shores. Looking ahead, guidance indicates yet another long- period northwest (320 deg) swell may arrive late next week, generated by a developing storm near Japan that is forecast to lift northeast near the Kuril Islands over the weekend.
Surf along south-facing shores will trend up over the weekend as a long-period south-southwest pulse arrives. Expect a peak later in the weekend and into Monday before lowering.
As trade winds weaken this weekend, expect surf along east- facing shores to trend downward.

HFO Watches/Warnings/Advisories

Small Craft Advisory until 6 AM HST Saturday for windier waters and channels near Maui and the Big Island.

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Data Courtesy of NOAA.gov