Hilo

Tonight: Partly cloudy. Scattered showers in the evening, then isolated showers after midnight. Lows 60 to 70 near the shore to 52 to 57 at 4000 feet. Northeast winds up to 10 mph shifting to the northwest after midnight. Chance of rain 40 percent.

Friday: Mostly sunny in the morning then becoming partly sunny. Scattered showers. Highs around 79 near the shore to 64 to 69 at 4000 feet. Northeast winds up to 10 mph. Chance of rain 40 percent.

Friday Night: Mostly cloudy with scattered showers. Lows 59 to 68 near the shore to 51 to 57 at 4000 feet. North winds up to 10 mph. Chance of rain 50 percent.

Kona

Tonight: Mostly clear. Lows around 72 near the shore to 49 to 55 near 5000 feet. Light winds.

Friday: Sunny. Highs 81 to 86 near the shore to around 67 near 5000 feet. Light winds.

Friday Night: Mostly clear. Isolated showers in the evening. Lows around 71 near the shore to 49 to 54 near 5000 feet. Light winds. Chance of rain 20 percent.

Waimea

Tonight: Partly cloudy with isolated showers. Lows 61 to 71 near the shore to 54 to 61 near 3000 feet. East winds up to 15 mph. Chance of rain 20 percent.

Friday: Mostly sunny with isolated showers. Highs around 77 near the shore to 67 to 75 near 3000 feet. Northeast winds up to 10 mph. Chance of rain 20 percent.

Friday Night: Partly cloudy. Scattered showers in the evening, then isolated showers after midnight. Lows 60 to 70 near the shore to 53 to 60 near 3000 feet. East winds up to 10 mph. Chance of rain 40 percent.

Kohala

Tonight: Partly cloudy with isolated showers. Lows 61 to 71 near the shore to 54 to 61 near 3000 feet. East winds up to 15 mph. Chance of rain 20 percent.

Friday: Mostly sunny with isolated showers. Highs around 77 near the shore to 67 to 75 near 3000 feet. Northeast winds up to 10 mph. Chance of rain 20 percent.

Friday Night: Partly cloudy. Scattered showers in the evening, then isolated showers after midnight. Lows 60 to 70 near the shore to 53 to 60 near 3000 feet. East winds up to 10 mph. Chance of rain 40 percent.

South Big Island

Tonight: Mostly clear. Isolated showers in the evening. Lows around 74 near the shore to around 56 near 5000 feet. East winds around 10 mph. Chance of rain 20 percent.

Friday: Sunny. Isolated showers in the afternoon. Highs around 83 near the shore to around 65 near 5000 feet. East winds up to 15 mph. Chance of rain 20 percent.

Friday Night: Mostly clear. Isolated showers in the evening. Lows around 74 near the shore to around 55 near 5000 feet. Northeast winds up to 10 mph. Chance of rain 20 percent.

Puna

Tonight: Partly cloudy. Scattered showers in the evening, then isolated showers after midnight. Lows 60 to 70 near the shore to 52 to 57 at 4000 feet. Northeast winds up to 10 mph shifting to the northwest after midnight. Chance of rain 40 percent.

Friday: Mostly sunny in the morning then becoming partly sunny. Scattered showers. Highs around 79 near the shore to 64 to 69 at 4000 feet. Northeast winds up to 10 mph. Chance of rain 40 percent.

Friday Night: Mostly cloudy with scattered showers. Lows 59 to 68 near the shore to 51 to 57 at 4000 feet. North winds up to 10 mph. Chance of rain 50 percent.

Waikoloa

Tonight: Mostly clear. Lows around 72 near the shore to around 54 above 4000 feet. East winds up to 15 mph becoming around 10 mph after midnight.

Friday: Sunny. Highs 81 to 86 near the shore to 66 to 71 above 4000 feet. North winds up to 10 mph.

Friday Night: Mostly clear. Lows around 71 near the shore to 51 to 56 above 4000 feet. Northeast winds up to 10 mph in the evening becoming light.

Detailed Forecast

Synopsis

Moderate to locally breezy trade winds are filtering back into the region due to a surface ridge building north of the islands. Rainfall will be limited into Saturday due to an upper level ridge over the islands. However low level moisture riding in on the trades will bring more typical windward and mauka showers by the end of the weekend into early next week.

Short term update

No changes to the forecast this evening, and not expecting any significant changes with the morning package.

Prev discussion

Issued at 331 PM HST Thu Apr 23 2026
A low pressure system east-northeast of the islands, combined with low about 1000 miles north-northwest of the islands are helping to disrupt the trade wind flow. However the low to the east-northeast will continue to weaken today as it moves to the east away from the islands. The low to the north- northwest will lift to the north. As this happens, the ridge to the north will strengthen, and moderate to locally breezy trades will filter back over the islands tonight into Friday. The global models agree on mid level ridging over the region which will help to maintain a stable airmass, limiting rainfall totals over the next few days.
The global models are in good agreement that moisture from the aforementioned low will get caught up in the trade wind flow over the weekend, and make its way into the islands. This will help us return to a more typical trade wind weather pattern with some heavier showers over the windward and mauka areas, along with the clouds and showers that form over the Kona slopes during the afternoon from Sunday into early next week.

Aviation

Issued at 331 PM HST Thu Apr 23 2026
Moderate northeasterly trade winds will prevail over the islands over the next several days. VFR conditions are expected, with isolated showers and brief MVFR conditions possible for primarily windward and mountain sites. No AIRMETs are in effect.

Marine

Issued at 331 PM HST Thu Apr 23 2026
A ridge of high pressure far north of the state will maintain moderate to fresh trade winds through much of next week. A weak trough moving over the state this weekend into early next week will cause the trade winds to briefly weaken and shift more easterly and will bring an increase of showers especially over windward waters. Brief periods of locally strong winds will be possible over the windier areas around Maui County and the Big Island through next week.
A pair of gale lows in the North Pacific will send a series of small northwest to north-northwest swells Friday night into the first half of next week. These swells should help maintain near average surf along north facing shores into next week. A storm- force low developing this weekend near the Aleutian Islands should send a slightly larger northwest swell towards the middle of next week.
The current short to medium period north-northeast swell will continue to decline this evening. A small fetch of strong northeast winds associated with the weak low northeast of the state, could provide some reinforcing short-period swell Friday into Saturday. Otherwise, below average surf is expected along east facing shores next week due to the lack of strong trade winds locally or upstream of the state.
Small background energy from the west will continue to linger the next few days and fade out this weekend. A small southwest bump from the Tasman Sea that passed across American Samoa's 51209 buoy yesterday is expected to arrive this weekend. No significant south swells are expected through the first half of next week.

HFO Watches/Warnings/Advisories

None.

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Data Courtesy of NOAA.gov