The weather forecast for the Big Island indicates mostly cloudy conditions with scattered showers tonight. Temperatures are expected to drop, with lows ranging from 64 to 69 degrees near the shore and 50 to 57 degrees at elevations around 4000 feet. Northeast winds may reach up to 10 mph before shifting to the northwest after midnight. The chance of rain stands at 50 percent.
On Tuesday, residents can look forward to partly sunny skies accompanied by scattered showers. Highs are predicted to reach between 79 and 85 degrees near the shore, while temperatures at 4000 feet will be cooler, hovering around 65 to 70 degrees. Winds are expected to pick up slightly, potentially reaching up to 15 mph from the northeast, with the chance of rain remaining at 50 percent.
Tonight, Kona will experience mostly cloudy conditions too, with scattered showers during the evening hours transitioning to partly cloudy skies with isolated showers after midnight. A haze is expected to linger throughout the night, with lows around 73 degrees near the shore and 47 to 53 degrees near elevations of 5000 feet. Light winds are predicted, creating a 40 percent chance of rain.
As Tuesday unfolds, Kona will enjoy partly sunny conditions, though haze will persist throughout the day. Scattered showers may develop in the afternoon with anticipated highs of 84 to 89 degrees near the shoreline and around 68 degrees near higher elevations. Similar to tonight, light winds will continue with a 40 percent chance of rain.
Waimea’s forecast reveals a breezy evening with partly cloudy skies and isolated showers initially, transitioning to mostly cloudy with scattered showers after midnight. Tonight’s lows in Waimea are expected to range from 62 to 71 degrees near the shore, while temperatures at 3000 feet will be slightly cooler at 54 to 62 degrees. Winds from the east may reach speeds of 10 to 25 mph, maintaining a 50 percent chance of rain.
For Tuesday, Waimea will see a continued breeze, characterized by partly sunny skies punctuated by scattered morning showers and mostly sunny afternoons with isolated showers. High temperatures are projected to be around 80 degrees near the shore and between 71 and 79 degrees at 3000 feet. Rain chances will remain at 50 percent.
Continuing the trend, Tuesday night in Waimea is expected to be breezy with mostly cloudy skies and isolated showers. Temperatures should drop to between 62 to 71 degrees near the shore, with the elevation near 3000 feet seeing lows of 53 to 62 degrees. There will be a slight decrease in rain chances to 20 percent as east winds blow at 10 to 20 mph.
In Kohala tonight, the weather will mirror Waimea’s, featuring a breezy environment. The skies will start off partly cloudy with isolated showers in the evening, before transitioning to mostly cloudy with scattered showers after midnight. The expected low temperatures are similar, ranging from 62 to 71 degrees near the shore and between 54 and 62 degrees at elevations around 3000 feet, with east winds of 10 to 25 mph bringing a 50 percent chance of rain.
Kohala’s Tuesday forecast is also breezy, with partly sunny skies accompanied by scattered morning showers before becoming mostly sunny with isolated showers in the afternoon. Highs are projected at around 80 degrees near the shore, while 71 to 79 degrees are expected around 3000 feet. The chance of rain remains consistent at 50 percent.
The night will follow a similar pattern as the previous regions, with breezy conditions and mostly cloudy skies featuring isolated showers. Lows are expected to be between 62 to 71 degrees near the shore and 53 to 62 degrees at elevations near 3000 feet, with east winds at 10 to 20 mph and a diminished chance of rain at 20 percent.
For the South Big Island, the evening weather will start partly cloudy and breezy, with isolated showers and haze lingering into the night. Lows near the shore are anticipated to be around 73 degrees, while temperatures will dip to about 51 degrees at elevations near 5000 feet. East winds could reach up to 20 mph, with a 20 percent chance of rain expected.
On Tuesday, mostly sunny conditions are forecasted, albeit with breezy weather and haze persisting throughout the day. Afternoon isolated showers may occur, with highs near 87 degrees by the shore and around 67 degrees at higher elevations. Winds could reach speeds of up to 20 mph, with a slight increase in strength to between 10 to 25 mph by the afternoon, maintaining a 20 percent chance of rain.
Tuesday night will see a transition into mostly cloudy conditions before clearing to partly cloudy skies. Breezy conditions and haze are expected to continue, with lows around 73 degrees along the shore and around 50 degrees near 5000 feet. East winds will remain consistent, blowing at 10 to 20 mph.
Puna’s forecast reflects that of Hilo, with mostly cloudy conditions and scattered showers expected this evening. Lows in Puna will range from 64 to 69 near the shore and between 50 to 57 at higher elevations, with northeast winds up to 10 mph shifting to the northwest after midnight. The chance of rain is set at 50 percent.
Tuesday will bring partly sunny skies with scattered showers, expecting highs between 79 and 85 degrees near the shoreline while reaching 65 to 70 degrees at elevations around 4000 feet. Northeast winds may blow at speeds of up to 15 mph, sustaining a 50 percent chance of rain. Nighttime conditions will revert to mostly cloudy with scattered showers and lows around 63 to 69 degrees near the shore and 50 to 57 degrees at higher elevations. The northeast winds will again reach speeds of up to 10 mph, with a constant 50 percent chance of rain expected.
In Waikoloa, the evening forecast calls for partly cloudy skies with isolated showers and continued haze. Lows are projected at 71 to 76 degrees near the shore, dropping to between 50 and 55 degrees at elevations above 4000 feet. Winds from the northeast could reach 15 mph, shifting to the east after midnight with potential gusts up to 35 mph. The chance of rain is low at 20 percent.
Tuesday morning is expected to be mostly sunny, gradually becoming partly sunny with isolated showers in the afternoon, again under a haze. Highs are set to be around 83 to 90 degrees along the shore and 64 to 74 degrees at elevations above 4000 feet. Northeast winds could still be occasionally strong, reaching up to 15 mph and could gust to 35 mph. The chance of rain remains at 20 percent.
Tuesday night will see mostly cloudy conditions develop again with isolated showers expected in the evening. Haze will persist overnight, with lows around 70 to 75 degrees near the shore and 49 to 54 degrees at higher elevations. East winds will be present, blowing at speeds of up to 10 mph, with a consistent 20 percent chance of rain.
As for the general synopsis, the current stable trade wind flow established over the Big Island and Maui County is gradually spreading westward across Oahu and Kauai tonight as high clouds begin to diminish. Aside from a few lingering showers around Kauai and leeward Oahu this evening, drier conditions are expected with breezy trade winds focusing modest showers primarily on windward slopes through Wednesday.
A slight increase in shower activity is projected for Thursday and Friday as the trade winds decrease. Light to moderate winds are also anticipated over the weekend.
Discussion points on the weather indicate a humid east-southeast flow with an increase in shower activity observed near Kauai and Oahu this afternoon. In contrast, a drier and more stable trade wind regime prevails over Maui County and the Big Island. This contrast is primarily due to an upper-level low and its associated surface trough located a couple of hundred miles west of Kauai. Dew points have remained in the lower 70s across much of Kauai and Oahu, fostering a humid environment and generating sporadic bands of shower activity in these areas. In contrast, more stable and drier conditions characterized by dew points in the mid to upper 60s dominate Maui County and the Big Island, resulting in limited rainfall primarily on windward areas and sheltering leeward terrain.
Evolving weather patterns denote a shift towards more typical, drier easterly trade winds across the island chain as high pressure northeast of the islands begins to expand westward. Tonight into Tuesday, VFR flight conditions are expected, aside from brief MVFR ceilings and visibilities during passing showers. Showers and low clouds will generally favor the north through east sections of the islands, with afternoon cloud buildups likely occurring along the Kona slopes of the Big Island on Tuesday.
An AIRMET Tango is currently in effect for moderate low-level turbulence downwind of island terrain, which is expected to persist at least through Tuesday night.
Marine conditions are anticipated to see moderate to fresh winds transitioning to a more typical easterly/northeasterly direction tonight as a trough west of the islands continues its westward movement. Winds will gradually lessen in strength throughout the week, potentially reaching a range of moderate to locally fresh conditions. A Small Craft Advisory is in effect for typical windy waters, including windward Maui waters until 6 AM HST Tuesday. However, the advisory will shrink in coverage, remaining only for the usually windy waters surrounding Maui and the Big Island until Wednesday afternoon.
Surf conditions will remain slightly elevated due to small northwest swells lingering through tomorrow. North and west-facing shore surf levels are expected to decrease to near June averages by Wednesday. South-facing shores will continue to experience a mix of small background swell for the next few days, with small southwest swells forecasted to arrive late Tuesday into Wednesday. A larger, longer period south-southwest swell is expected to build in on Friday, peaking over the weekend, potentially resulting in near advisory-level surf of 10 feet along south-facing shores.
In conclusion, this detailed weather report highlights the potential for localized rain and breezy conditions across various regions of the Big Island while anticipating a gradual shift towards more stable and drier trade wind conditions as the week progresses.
image source from：https://bigislandnow.com/2025/06/02/hawaii-county-weather-forecast-for-june-03-2025/
