Hilo

Tonight: Mostly cloudy with numerous showers. Lows 65 to 73 near the shore to around 58 at 4000 feet. Northeast winds up to 10 mph. Chance of rain 70 percent.

Sunday: Mostly sunny. Isolated showers in the morning. Highs around 81 near the shore to 64 to 69 at 4000 feet. Northeast winds up to 15 mph. Chance of rain 20 percent.

Sunday Night: Partly cloudy with isolated showers in the evening, then mostly cloudy with scattered showers after midnight. Lows 65 to 72 near the shore to around 56 at 4000 feet. Light winds. Chance of rain 40 percent.

Kona

Tonight: Mostly cloudy with scattered showers in the evening, then partly cloudy with isolated showers after midnight. Lows 67 to 75 near the shore to around 54 near 5000 feet. West winds up to 10 mph in the evening becoming light. Chance of rain 50 percent.

Sunday: Mostly sunny with isolated showers in the morning, then partly sunny with scattered showers in the afternoon. Highs 83 to 88 near the shore to around 69 near 5000 feet. Northwest winds up to 10 mph. Chance of rain 50 percent.

Sunday Night: Partly cloudy. Isolated showers in the evening. Lows 67 to 75 near the shore to 50 to 56 near 5000 feet. Light winds. Chance of rain 20 percent.

Waimea

Tonight: Partly cloudy with isolated showers. Lows 65 to 72 near the shore to 57 to 66 near 3000 feet. East winds up to 15 mph. Chance of rain 20 percent.

Sunday: Sunny. Highs around 82 near the shore to 69 to 79 near 3000 feet. East winds up to 15 mph.

Sunday Night: Partly cloudy. Isolated showers in the evening, then scattered showers after midnight. Lows 64 to 71 near the shore to 56 to 65 near 3000 feet. East winds around 10 mph. Chance of rain 30 percent.

Kohala

Tonight: Partly cloudy with isolated showers. Lows 65 to 72 near the shore to 57 to 66 near 3000 feet. East winds up to 15 mph. Chance of rain 20 percent.

Sunday: Sunny. Highs around 82 near the shore to 69 to 79 near 3000 feet. East winds up to 15 mph.

Sunday Night: Partly cloudy. Isolated showers in the evening, then scattered showers after midnight. Lows 64 to 71 near the shore to 56 to 65 near 3000 feet. East winds around 10 mph. Chance of rain 30 percent.

South Big Island

Tonight: Mostly cloudy with scattered showers. Lows around 75 near the shore to around 57 near 5000 feet. East winds up to 15 mph. Chance of rain 50 percent.

Sunday: Mostly sunny in the morning then becoming partly sunny. Scattered showers. Highs around 84 near the shore to around 67 near 5000 feet. East winds up to 15 mph. Chance of rain 50 percent.

Sunday Night: Partly cloudy. Isolated showers in the evening, then scattered showers after midnight. Lows around 75 near the shore to around 57 near 5000 feet. Northeast winds up to 10 mph in the evening becoming light. Chance of rain 30 percent.

Puna

Tonight: Mostly cloudy with numerous showers. Lows 65 to 73 near the shore to around 58 at 4000 feet. Northeast winds up to 10 mph. Chance of rain 70 percent.

Sunday: Mostly sunny. Isolated showers in the morning. Highs around 81 near the shore to 64 to 69 at 4000 feet. Northeast winds up to 15 mph. Chance of rain 20 percent.

Sunday Night: Partly cloudy with isolated showers in the evening, then mostly cloudy with scattered showers after midnight. Lows 65 to 72 near the shore to around 56 at 4000 feet. Light winds. Chance of rain 40 percent.

Waikoloa

Tonight: Mostly clear. Lows 70 to 76 near the shore to 51 to 58 above 4000 feet. Northeast winds up to 10 mph shifting to the southeast after midnight.

Sunday: Mostly sunny. Isolated showers in the afternoon. Highs around 86 near the shore to 66 to 73 above 4000 feet. East winds up to 10 mph shifting to the northwest in the afternoon. Chance of rain 20 percent.

Sunday Night: Mostly clear. Lows 70 to 76 near the shore to 51 to 57 above 4000 feet. Light winds.

Detailed Forecast

Synopsis

Moisture will decrease through the rest of this weekend. Light to moderate background trade winds will prevail, allowing sea breezes to develop in sheltered leeward areas. A brief increase in showers is expected Monday night on the Big Island before a return to relatively dry trades through the end of next week.

Discussion

This afternoon, relatively light to moderate background winds have allowed afternoon sea breezes to increase clouds and produce a few light showers across sheltered leeward areas of the smaller islands. Also of note, stubborn clouds and occasional showers have persisted along the North and South Kona Districts of the Big Island throughout the day, in addition to the usual windward zones. These will linger into the evening hours, but should decrease tonight. Otherwise, very few windward showers have been noted across the smaller islands, with only very light accumulations observed.
The low pressure system that brought rain to parts of the state earlier this week continues to linger to the NW of the state, though it has weakened and drifted a little farther away from the islands. Meanwhile, a trough located near the western end of the state will continue occasional passing showers for Kauai and Niihau through tonight, but these will decrease beginning on Sunday as the trough moves farther west. Drier conditions overall are expected statewide on Sunday and Monday.
A trough moving into the island chain from the west looks to bring some additional moisture to the eastern end of the state, primarily the Big Island, by late Monday night into Tuesday. Otherwise, the next several days will be dominated by relatively dry trades. Isolated to scattered showers windward and mauka will be most common at night, with some leeward cloud buildups in sheltered areas each afternoon due to light to moderate background trade winds. Trades look to increase again by the end of next week.

Aviation

Light to moderate southeasterly winds will continue to bring showers to southeast and west facing coasts and slopes of Kauai through the afternoon, while moderate easterly trades prevail elsewhere. These easterly trade winds are expected to fill in completely across the island chain by sometime this evening. Showers are persisting across the coastal areas and lower slopes of the Kona Districts, along with a few showers moving into windward Big Island this afternoon. MVFR conditions are expected in and around these showers. Otherwise, VFR conditions are expected to prevail as drier air filters in on the trades.
AIRMET Sierra is in effect for mountain obscuration along the southeast and west facing coasts and slopes of Kauai, along with the stretch of lower slopes from South Point to Kailua-Kona and windward areas on the Big Island this afternoon. This shower activity is expected to slowly taper off this evening.

Marine

Moderate to fresh trade winds will prevail this weekend, though weaker winds will remain in place over the western waters as a trough continues to linger west of the area. Trade winds then decrease this upcoming week into the light to moderate range through much of the week with slight day to day fluctuations. Strengthening trades are then possible towards the end of the week as high pressure builds north of the area.
A long-period south swell has been filling in today and will peak Sunday into Monday. This will maintain elevated surf along south and west- facing shores, but it will remain below advisory levels. South shore surf will decline slightly by the middle of next week, but will be followed by a new long period swell Wednesday night or Thursday.
A medium-period northwest swell declines through the weekend as the source low pressure northwest of the Hawaiian Islands continues to weaken through Monday. This will cause small surf along north-facing shores to gradually fade today. A smaller long- period northwest swell is also forecast to move through the islands this weekend, which could prolong small surf through Sunday, but will fade by the beginning of next week. A small, long-period northwest swell is forecast to arrive on Monday and peak Tuesday, boosting north shore surf back to moderate levels. A moderate north- northwest swell is possible by the end of the week, depending on the evolution of a projected low in the north Pacific. Due to model discrepancies at this time, confidence on size is low.
Surf along east-facing shores will remain small as local winds remain fairly weak with only slight variations each day. Small, moderate-period west and east swells generated by multiple Pacific tropical cyclones are also moving through the islands this weekend.

Fire weather

Issued at 354 PM HST Sat Oct 10 2026
Light to moderate trades will prevail. Moisture will decrease tonight into Sunday, bringing RH values down to near critical values on Monday on part of the Big Island, including near Kona. With that said, winds will be very light. Inversion heights are around 5500-6500 feet.

HFO Watches/Warnings/Advisories

None.

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Data Courtesy of NOAA.gov