Today: Mostly sunny with isolated showers in the morning, then mostly cloudy with scattered showers in the afternoon. Highs around 79 near the shore to 64 to 69 at 4000 feet. East winds up to 15 mph increasing to 10 to 15 mph in the afternoon. Chance of rain 50 percent.
Tonight: Mostly cloudy with scattered showers. Lows 64 to 69 near the shore to around 52 at 4000 feet. East winds up to 10 mph. Chance of rain 50 percent.
Sunday: Partly sunny with scattered showers. Highs around 81 near the shore to 64 to 69 at 4000 feet. East winds up to 15 mph increasing to 10 to 15 mph in the afternoon. Chance of rain 50 percent.
Kona
Today: Sunny in the morning, then mostly cloudy with scattered showers in the afternoon. Highs 80 to 85 near the shore to around 64 near 5000 feet. Northwest winds up to 10 mph. Chance of rain 50 percent.
Tonight: Partly cloudy with isolated showers. Lows 67 to 72 near the shore to around 53 near 5000 feet. Light winds. Chance of rain 20 percent.
ARTICLE CONTINUES BELOW AD
ARTICLE CONTINUES BELOW AD
Sunday: Mostly sunny in the morning, then mostly cloudy with scattered showers in the afternoon. Highs 80 to 85 near the shore to around 64 near 5000 feet. North winds up to 10 mph shifting to the west in the afternoon. Chance of rain 40 percent.
Waimea
Today: Mostly sunny with isolated showers in the morning, then partly sunny with scattered showers in the afternoon. Highs around 78 near the shore to 63 to 74 near 3000 feet. East winds up to 15 mph. Chance of rain 50 percent.
Tonight: Mostly cloudy in the evening then becoming partly cloudy. Scattered showers. Lows around 66 near the shore to 53 to 60 near 3000 feet. East winds 10 to 15 mph. Chance of rain 50 percent.
Sunday: Mostly sunny in the morning then becoming partly sunny. Breezy. Scattered showers. Highs around 80 near the shore to 65 to 75 near 3000 feet. East winds 10 to 20 mph. Chance of rain 50 percent.
Kohala
Today: Mostly sunny with isolated showers in the morning, then partly sunny with scattered showers in the afternoon. Highs around 78 near the shore to 63 to 74 near 3000 feet. East winds up to 15 mph. Chance of rain 50 percent.
ARTICLE CONTINUES BELOW AD
Tonight: Mostly cloudy in the evening then becoming partly cloudy. Scattered showers. Lows around 66 near the shore to 53 to 60 near 3000 feet. East winds 10 to 15 mph. Chance of rain 50 percent.
Sunday: Mostly sunny in the morning then becoming partly sunny. Breezy. Scattered showers. Highs around 80 near the shore to 65 to 75 near 3000 feet. East winds 10 to 20 mph. Chance of rain 50 percent.
South Big Island
Today: Breezy. Sunny with isolated showers in the morning, then partly sunny with scattered showers in the afternoon. Highs around 82 near the shore to around 68 near 5000 feet. East winds up to 25 mph. Chance of rain 50 percent.
Tonight: Partly cloudy. Isolated showers in the evening. Lows around 68 near the shore to around 52 near 5000 feet. East winds 10 to 15 mph. Chance of rain 20 percent.
Sunday: Mostly sunny. Isolated showers in the afternoon. Highs around 82 near the shore to around 68 near 5000 feet. East winds 10 to 15 mph. Chance of rain 20 percent.
Puna
ARTICLE CONTINUES BELOW AD
Today: Mostly sunny with isolated showers in the morning, then mostly cloudy with scattered showers in the afternoon. Highs around 79 near the shore to 64 to 69 at 4000 feet. East winds up to 15 mph increasing to 10 to 15 mph in the afternoon. Chance of rain 50 percent.
Tonight: Mostly cloudy with scattered showers. Lows 64 to 69 near the shore to around 52 at 4000 feet. East winds up to 10 mph. Chance of rain 50 percent.
Sunday: Partly sunny with scattered showers. Highs around 81 near the shore to 64 to 69 at 4000 feet. East winds up to 15 mph increasing to 10 to 15 mph in the afternoon. Chance of rain 50 percent.
Waikoloa
Today: Sunny in the morning, then partly sunny with scattered showers in the afternoon. Highs around 84 near the shore to 65 to 71 above 4000 feet. East winds up to 10 mph shifting to the west in the afternoon. Chance of rain 50 percent.
Tonight: Partly cloudy with isolated showers. Lows around 70 near the shore to 49 to 56 above 4000 feet. North winds up to 10 mph shifting to the east after midnight. Chance of rain 20 percent.
Sunday: Mostly sunny. Highs around 84 near the shore to 65 to 71 above 4000 feet. Northeast winds up to 15 mph shifting to the north in the afternoon.
Detailed Forecast
Synopsis
Trade winds will begin to fill in across the eastern half of the state today and expand westward on Sunday. Drier conditions will return to most of the state, but showers will linger near Kauai through today and select interior and leeward areas could see scattered showers this afternoon. A breezy trade wind pattern will return across the state during the first half of next week.
Discussion
An upper low northeast of the Big Island this morning will continue to move eastward through the forecast period and fill in, allowing weak upper ridging to develop across the islands. Yesterday's associated heavy rainfall and deep convection across the Big Island has collapsed, with satellite loop now showing scattered low clouds to clear skies from Oahu eastward. An area of showery low clouds continues to linger across and around Kauai. This will diminish and get pushed westward away from the islands as trade winds fill in tonight and Sunday.
Expect less shower activity today versus yesterday, with mainly fair weather conditions for most of the islands. The one exception could be over Kauai, where southerly winds in the low levels will continue to bring showers to the area through today. Easterly trades will begin to return today, but winds may still be light enough for localized sea breezes to develop across protected areas. Afternoon showers are possible and, due to the background easterly flow, showers will likely develop over interior areas and drift westward this afternoon. With the stabilizing atmosphere, shower intensity should remain light to moderate.
Trades will further strengthen Sunday into Monday, with a typical breezy trade wind weather pattern returning during the first half of next week. An increase in low level moisture is possible Monday into Tuesday, which could bring periods of increased showery weather for windward areas.
Aviation
Early this morning, an area of showers and low clouds continues to linger near and just west of Kauai, producing occasional MVFR ceilings and steady rainfall near Niihau. Much drier conditions have overspread the remaining islands throughout the night as an upper low moves off to the east and weak upper ridging develops across the state.
Southerly low level winds will continue to support showers near Kauai today. Easterly trade winds begin to build back into the region across the eastern half of the state today before expanding westward on Sunday. With that said, trades may still be light enough for localized sea breezes to develop this afternoon, which could produce some light to moderate interior and leeward showers. Regardless, VFR conditions are expected to prevail at most locations throughout the forecast period.
AIRMET Sierra for mountain obscuration remains in effect for Kauai early this morning. This AIRMET will likely remain in effect through the rest of the morning, but showers and low clouds should diminish later today.
Marine
High pressure will build to the northeast, leading to strengthening trade winds that will produce Small Craft Advisory (SCA) conditions around the Big Island and Maui County beginning tonight. Trades will increase to fresh to locally strong levels Sunday and Monday and then drop slightly on Wednesday.
Surf will be below seasonal average through much of the week. Inconsistent pulses of south-southwest and south-southeast swell will produce surf just below seasonal average though the weekend, followed by mainly summertime background sized surf next week. A small, short-period north swell will fade tonight, with a tiny pulse of northwest swell possible late Sunday and Monday. As trade winds return, expect rough east shore to build Sunday and Monday but remain below seasonal average through the week.
HFO Watches/Warnings/Advisories
Small Craft Advisory from 6 PM this evening to 6 PM HST Sunday for Pailolo Channel, Alenuihaha Channel, Big Island Leeward Waters, Big Island Southeast Waters.
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