Hawaii County Weather Forecast for October 03, 2026
Hilo
Rest Of Tonight: Partly cloudy with isolated showers. Lows 66 to 73 near the shore to around 59 at 4000 feet. Northeast winds up to 10 mph. Chance of rain 20 percent.
Saturday: Mostly sunny with isolated showers in the morning, then partly sunny with scattered showers in the afternoon. Highs 78 to 84 near the shore to 65 to 71 at 4000 feet. Northeast winds up to 10 mph. Chance of rain 40 percent.
Saturday Night: Mostly cloudy with scattered showers. Lows 64 to 71 near the shore to 49 to 57 at 4000 feet. North winds up to 15 mph. Chance of rain 50 percent.
Kona
Rest Of Tonight: Mostly clear. Isolated showers early in the evening. Lows 68 to 76 near the shore to around 56 near 5000 feet. Northwest winds up to 10 mph early in the evening becoming light. Chance of rain 20 percent.
Saturday: Sunny. Isolated showers in the afternoon. Highs 83 to 88 near the shore to around 69 near 5000 feet. Light winds becoming west up to 10 mph in the afternoon. Chance of rain 20 percent.
Saturday Night: Mostly clear. Isolated showers in the evening. Lows 70 to 76 near the shore to around 53 near 5000 feet. Northwest winds up to 10 mph in the evening becoming light. Chance of rain 20 percent.
Waimea
Rest Of Tonight: Partly cloudy with isolated showers. Lows 66 to 73 near the shore to 57 to 66 near 3000 feet. East winds up to 15 mph. Chance of rain 20 percent.
Saturday: Mostly sunny. Isolated showers in the morning, then scattered showers in the afternoon. Highs 78 to 83 near the shore to 69 to 79 near 3000 feet. East winds up to 15 mph. Chance of rain 40 percent.
Saturday Night: Breezy. Partly cloudy with isolated showers. Lows 61 to 70 near the shore to 48 to 60 near 3000 feet. East winds up to 20 mph increasing to 10 to 20 mph after midnight. Gusts up to 40 mph. Chance of rain 20 percent.
Kohala
Rest Of Tonight: Partly cloudy with isolated showers. Lows 66 to 73 near the shore to 57 to 66 near 3000 feet. East winds up to 15 mph. Chance of rain 20 percent.
Saturday: Mostly sunny. Isolated showers in the morning, then scattered showers in the afternoon. Highs 78 to 83 near the shore to 69 to 79 near 3000 feet. East winds up to 15 mph. Chance of rain 40 percent.
Saturday Night: Breezy. Partly cloudy with isolated showers. Lows 61 to 70 near the shore to 48 to 60 near 3000 feet. East winds up to 20 mph increasing to 10 to 20 mph after midnight. Gusts up to 40 mph. Chance of rain 20 percent.
South Big Island
Rest Of Tonight: Partly cloudy early in the evening then becoming clear. Breezy. Isolated showers early in the evening. Lows around 76 near the shore to around 60 near 5000 feet. East winds up to 20 mph. Chance of rain 20 percent.
Saturday: Sunny and breezy. Isolated showers in the afternoon. Highs around 83 near the shore to around 68 near 5000 feet. East winds up to 20 mph. Chance of rain 20 percent.
Saturday Night: Mostly clear. Breezy. Lows around 72 near the shore to around 54 near 5000 feet. East winds up to 20 mph.
Puna
Rest Of Tonight: Partly cloudy with isolated showers. Lows 66 to 73 near the shore to around 59 at 4000 feet. Northeast winds up to 10 mph. Chance of rain 20 percent.
Saturday: Mostly sunny with isolated showers in the morning, then partly sunny with scattered showers in the afternoon. Highs 78 to 84 near the shore to 65 to 71 at 4000 feet. Northeast winds up to 10 mph. Chance of rain 40 percent.
Saturday Night: Mostly cloudy with scattered showers. Lows 64 to 71 near the shore to 49 to 57 at 4000 feet. North winds up to 15 mph. Chance of rain 50 percent.
Waikoloa
Rest Of Tonight: Mostly clear. Lows 71 to 77 near the shore to 54 to 61 above 4000 feet. Northeast winds up to 15 mph.
Saturday: Sunny. Highs 84 to 90 near the shore to 67 to 74 above 4000 feet. North winds up to 15 mph.
Saturday Night: Mostly clear. Windy. Lows 71 to 76 near the shore to 46 to 58 above 4000 feet. Northeast winds up to 30 mph.
Detailed Forecast
Synopsis
Tropical Storm Nolo strengthen once again to a hurricane this afternoon away from the islands. Drier air mass will encompass the region tonight into the weekend.
Short term update
No major changes as previous forecast is on track.
Prev discussion
Issued at 352 PM HST Fri Oct 2 2026
Showers developed this afternoon across the windward site of the islands. Rest of the state remained dry. Trailing moisture induced by Hurricane Nolo's circulation which affected the state for most of this week, finally has moved away from the region. A drier air mass has established through the area while winds also have shifted from a southerly to a more easterly component. Although relatively dry conditions will prevail across the state during the weekend, showers are expected to develop each afternoon on the windward side of the islands.
Early next week, the trades will weaken in response to an approaching surface trough from the northeast and then will weaken further heading into midweek as broad troughing develops northwest of the state. In this lighter flow, land and sea breezes will become increasingly more prevalent with clearing expected overnight and clouds and a few showers developing over leeward and interior areas with daytime heating each afternoon.
Aviation
The high pressure ridge will build back over the Hawaii region with drier easterly trade wind weather returning just in time for the weekend. Lower humidity levels and mostly sunny skies will prevail through Sunday.
AIRMET Sierra remains in effect for mountain obscuration above 2000 feet over Kauai, Oahu, and above 2500 feet over portions of the Big Island. Conditions will improve for all islands as drier weather returns by Saturday morning.
Marine
Issued at 352 PM HST Fri Oct 2 2026
As Hurricane Nolo continues to strengthen and moves farther west away from the Hawaiian Islands, its influence on local weather will wane. Gentle to fresh east to northeast trade winds will fill back in on Saturday, along with drier air settling over the area. A Small Craft Advisory may be needed for the typically windy waters and channels by late this weekend for locally strong trades. By the middle of next week, troughing developing northwest of the islands may cause the trade winds to weaken and veer out of the southeast once again.
A moderate, medium-period west to southwest swell originating from Nolo that has been affecting Niihau and Kauai will quickly fade tonight. Meanwhile, a small background south swell continues for other islands, holding surf mostly steady along south facing shores through the weekend. A new small, long-period south swell, originating from a large fetch of gale force winds southeast of New Zealand earlier this week, is forecast to arrive beginning Sunday and peak Monday through Wednesday.
Surf along north-facing shores saw a small bump today as a small, short to medium period swell moved into the region. This will peak late today, then decline into the weekend. Another increase in small north shore surf is possible early next week as a small, medium- period northwest swell arrives this weekend and peaks on Monday. This will be followed by a slightly larger long-period northwest swell peaking on Wednesday. Surf along east facing shores will see a slight boost and become more choppy as easterly trades build back into the region this weekend.
Fire weather
Issued at 352 PM HST Fri Oct 2 2026
Drier air is expected over the weekend as moderate to locally breezy east-northeasterly trades return, which may increase the fire weather concern slightly to moderate levels. However, winds are expected to decrease early to midweek next week, lowering the fire weather concerns once again.
HFO Watches/Warnings/Advisories
None.
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Data Courtesy of NOAA.gov
