The latest weather forecast for the Big Island indicates a continuation of breezy trade winds over the next few days, bringing along passing clouds and showers, particularly favoring windward and mauka areas.
Tonight, the weather will be mostly cloudy with numerous showers expected. The lows are predicted to range from 61 to 68 degrees near the shore, while temperatures at elevations around 4000 feet could drop to between 47 and 54 degrees. North winds of up to 10 mph will shift to the northwest after midnight, and the chance of rain stands at 70 percent.
On Monday, residents can expect a mostly cloudy day with numerous showers in the morning, followed by occasional showers in the afternoon. High temperatures will reach around 80 degrees near the shore and about 66 degrees at 4000 feet. East winds will reach up to 15 mph, with the chance of rain increasing to 90 percent.
Monday night will see occasional showers with lows of 61 to 67 degrees near the shore and 47 to 54 degrees at 4000 feet. East winds may reach 10 mph, with the chance of rain near 100 percent.
In Kona, the weather tonight is expected to be mostly clear, with lows ranging from 68 to 73 degrees near the shore, and 43 to 49 degrees near 5000 feet. Light winds will accompany the clear skies.
Monday will transition to mostly sunny conditions, with scattered showers likely to appear in the afternoon. Highs will be around 82 to 87 degrees near the shore and approximately 66 degrees near 5000 feet. Light winds will turn northwest, reaching up to 10 mph in the afternoon. The chance of rain is forecasted to be around 40 percent.
By Monday night, partly cloudy skies will prevail with scattered showers in the evening and isolated showers following after midnight. Lows will be between 67 and 72 degrees near the shore, and 43 to 49 degrees near 5000 feet. North winds of up to 10 mph are expected, with a 50 percent chance of rain.
In Waimea, tonight’s forecast is for mostly cloudy skies accompanied by breezy conditions. Lows are expected to range from 60 to 70 degrees near the shore, dropping to about 50 to 59 degrees at 3000 feet, with east winds of 10 to 20 mph.
Monday will begin partly sunny, but breezy weather is anticipated with shower likelihood increasing in the afternoon. High temperatures will hover around 79 degrees near the shore and 71 to 78 degrees near 3000 feet, with east winds reaching 10 to 25 mph. The chance of rain is forecast at 70 percent.
Monday night will revert to mostly cloudy skies, with breezy conditions continuing. Scattered showers are expected in the evening, transitioning to likely showers after midnight. Lows are set to range from 60 to 68 degrees near the shore, and 51 to 58 degrees near 3000 feet, along with east winds that could reach up to 20 mph. The chance of rain is again expected at 70 percent.
Kohala’s weather tonight is similar to Waimea’s, predicting mostly cloudy skies and breezy conditions. Lows will range from 60 to 70 degrees near the shore and 50 to 59 degrees at 3000 feet. East winds are expected to blow at 10 to 20 mph.
Monday will feature partly sunny skies and a continuation of breezy conditions. Showers are likely to emerge in the afternoon, with highs around 79 degrees near the shore and 71 to 78 degrees near 3000 feet. East winds of 10 to 25 mph will persist, and the chance of rain stands at 70 percent for the day.
As Monday night approaches, conditions will be mostly cloudy and breezy, with scattered showers in the evening likely transitioning to more showers after midnight. Lows will range similarly to those in Waimea, 60 to 68 degrees near the shore and 51 to 58 degrees at 3000 feet, with east winds up to 20 mph. Rain chances will remain at 70 percent.
Turning to the South Big Island, a clear night is expected with breezy conditions, and lows are set around 72 degrees near the shore and approximately 48 degrees near 5000 feet. East winds are expected at 10 to 20 mph.
Monday will bring sunny skies and scattered showers in the afternoon. High temperatures will be around 85 degrees near the shore and 67 degrees near 5000 feet, with east winds of 10 to 25 mph. The chance of rain for the day is a moderate 40 percent.
Monday night will feature partly cloudy skies with isolated showers in the evening. Lows are anticipated to be around 71 degrees near the shore and 48 degrees near 5000 feet, in a scenario with east winds of 10 to 20 mph. The chance of rain stands at 20 percent.
Puna’s weather tonight mirrors that of Hilo, with mostly cloudy conditions and numerous showers expected. Lows will range from 61 to 68 degrees near the shore, and 47 to 54 degrees at 4000 feet. North winds of up to 10 mph transitioning to northwest after midnight will be experienced, along with a 70 percent chance of rain.
Tomorrow, Puna residents can expect mostly cloudy skies with numerous morning showers and occasional showers in the afternoon. Highs will arrive at approximately 80 degrees near the shore and 66 degrees at 4000 feet. East winds will reach up to 15 mph, with rain chances increasing to 90 percent.
Monday night will bring continued occasional showers with expected lows between 61 to 67 degrees near the shore and 47 to 54 degrees at 4000 feet. East winds will be up to 10 mph, with a near 100 percent chance of rain forecasted.
Waikoloa’s weather tonight includes mostly clear skies with lows from 67 to 73 degrees near the shore and around 45 to 51 degrees above 4000 feet. Expect east winds of up to 15 mph.
Monday is predicted to be sunny, with scattered showers likely in the afternoon. Highs are expected to range from 81 to 87 degrees near the shore and 62 to 72 degrees above 4000 feet. North winds will blow at up to 10 mph, with a 50 percent chance of rain.
Moreover, Monday night will present partly cloudy conditions interspersed with isolated showers. Lows are projected between 67 to 72 degrees near the shore and 46 to 52 degrees above 4000 feet. Northeast winds will reach up to 10 mph in the evening before becoming light, with a 20 percent chance of rain.
Taking a broader view, the synopsis indicates that breezy trade winds are set to continue, bringing passing clouds and showers, particularly over windward and mauka areas over the coming days. However, lighter winds are expected by mid-week, resulting in fewer windward showers and a greater chance of afternoon interior showers each day.
The discussion suggests that a diurnal trend has reduced moisture once focused over Maui County, which is now predominantly over Oahu. As showers start redeveloping, particularly heavier ones may develop around Kauai. The upper low is anticipated to move eastward through Tuesday, promoting weak instability and facilitating increased shower activity across windward areas.
Observations reveal a steady supply of shallow moisture influencing continued shower activity over windward and mauka areas, particularly through early next week. Potential pockets of heavier showers may arise due to organized areas of moisture.
By Tuesday through early Wednesday, brief mid-level shortwave ridging is expected to develop in response to a mid-latitude trough impacting the area late Wednesday into Friday. This ridging should bring about increased stability, resulting in a diminishing surface pressure gradient and a transition to a land and sea breeze pattern by Wednesday.
Later in the week, larger-scale ascent is expected to increase Thursday into Friday, which will likely enhance afternoon showers over the island interiors, with the potential for heavy downpours.
Winds will remain light and variable over western waters as they are disrupted by an incoming front, with eastern areas experiencing a shift to east-southeast at light to moderate speeds.
Marine conditions are characterized by a high-pressure system northeast of the state, maintaining moderate to strong trade winds up through Monday and prompting a Small Craft Advisory in various ocean areas. These winds are expected to gradually ease as the week progresses.
Surf along east shores will maintain above-average conditions through Tuesday but will turn rough due to strong trades, while a decline is expected as the winds lessen.
Additionally, a small to moderate northwest swell will enhance surf along north and west shores on Monday and Tuesday, with surf levels diminishing thereafter, before a new moderate-sized swell arrives late Thursday, leading to potentially advisory-level surf on Friday.
Overall, conditions indicate varying weather patterns across the Big Island, with expected rain and breezy conditions giving way to more stabilized weather by midweek, alongside fluctuations in ocean conditions.
image source from：https://bigislandnow.com/2025/04/13/hawaii-county-weather-forecast-for-april-14-2025/
