Today: Mostly sunny. Highs around 81 near the shore to 69 to 75 at 4000 feet. South winds up to 10 mph shifting to the east in the afternoon.
Tonight: Partly cloudy. Lows 58 to 65 near the shore to around 52 at 4000 feet. Northwest winds up to 10 mph.
Monday: Mostly sunny. Highs around 82 near the shore to 69 to 74 at 4000 feet. Southeast winds up to 10 mph.
Kona
Today: Mostly sunny. Haze. Highs 81 to 86 near the shore to around 71 near 5000 feet. Light winds.
Tonight: Partly cloudy. Haze. Lows around 66 near the shore to 44 to 51 near 5000 feet. Light winds becoming east up to 10 mph after midnight.
ARTICLE CONTINUES BELOW AD
ARTICLE CONTINUES BELOW AD
Monday: Mostly sunny. Haze. Highs 80 to 85 near the shore to around 70 near 5000 feet. North winds up to 10 mph in the morning becoming light.
Waimea
Today: Mostly sunny. Highs 68 to 82. East winds up to 10 mph.
Tonight: Partly cloudy. Lows 57 to 65 near the shore to 48 to 57 near 3000 feet. East winds up to 15 mph increasing to 10 to 15 mph after midnight.
Monday: Mostly sunny. Highs 69 to 82. East winds up to 10 mph.
Kohala
Today: Mostly sunny. Highs 68 to 82. East winds up to 10 mph.
ARTICLE CONTINUES BELOW AD
Tonight: Partly cloudy. Lows 57 to 65 near the shore to 48 to 57 near 3000 feet. East winds up to 15 mph increasing to 10 to 15 mph after midnight.
Monday: Mostly sunny. Highs 69 to 82. East winds up to 10 mph.
South Big Island
Today: Mostly sunny. Haze. Highs around 82 near the shore to around 71 near 5000 feet. East winds up to 15 mph.
Tonight: Mostly clear. Breezy and haze. Lows around 67 near the shore to around 47 near 5000 feet. Northeast winds up to 20 mph increasing to 10 to 20 mph after midnight.
Monday Night: Mostly clear with isolated showers. Haze. Lows 46 to 69. East winds around 10 mph. Chance of rain 20 percent.
Puna
ARTICLE CONTINUES BELOW AD
Today: Mostly sunny. Highs around 81 near the shore to 69 to 75 at 4000 feet. South winds up to 10 mph shifting to the east in the afternoon.
Tonight: Partly cloudy. Lows 58 to 65 near the shore to around 52 at 4000 feet. Northwest winds up to 10 mph.
Monday: Mostly sunny. Highs around 82 near the shore to 69 to 74 at 4000 feet. Southeast winds up to 10 mph.
Waikoloa
Today: Sunny and haze. Highs around 83 near the shore to 68 to 73 above 4000 feet. Southwest winds up to 10 mph shifting to the northwest in the afternoon.
Tonight: Mostly clear. Haze. Lows around 66 near the shore to 45 to 51 above 4000 feet. Southeast winds up to 15 mph.
Monday: Sunny and haze. Highs around 82 near the shore to 67 to 73 above 4000 feet. Light winds.
Detailed Forecast
Synopsis
An upper level ridge of high pressure will continue to keep the Hawaiian Islands in a dry and stable weather pattern through Tuesday with limited cloud cover. Expect cool morning temperatures in the early morning hours. A weak cold front will swiftly move southeastward across the state on Wednesday with a brief increase in shower activity for each island. Trade winds will also briefly strengthen behind the front as a high pressure system passes by just north of the island chain. Light winds return on Thursday and Friday with land and sea breezes over the western slopes of each island.
Discussion
Extremely stable conditions persist across the Hawaii region today as the islands remain directly under the upper level ridge axis. In this pattern warmer temperatures aloft, produced by the downward moving air (or subsidence) under this ridge, and light winds will keep cloud development at minimum levels into early next week. These temperature inversion heights range between 2,000 and 4,000 feet elevation capping vertical cloud development. Near zero rainfall remains in the forecast for most areas. Drier air above the inversion level will also allow more heat to escape into outer space each night, dropping the early morning low temperatures into the mid to low 60's for coastal communities through Tuesday.
Low pressure systems will continue to pass north of the region into early next week with little change to this stable forecast through Tuesday. Light winds will allow local scale sea breezes to develop each day with land breezes at night.
The next best chance for rainfall will occur next week Wednesday as a weak cold front moves swiftly down the island chain. A brief period of clouds and showers will start near Kauai and Oahu early Wednesday morning, reaching the islands in Maui County around noon, and then finally moving into the Big Island from late Wednesday afternoon to evening. Light to moderate trade winds will then briefly fill in as the front passes through each island. Another round of light winds returns by the end of next week as another cold front approaches the state from the northwest.
Aviation
Overnight, moisture trapped below a strong and remarkably low inversion resulted in scattered to broken transient MVFR clouds across the smaller islands. As a result, AIRMET Sierra was issued for tempo mountain obscuration for portions of the state. These clouds are expected to diminish around sunrise and give way to VFR conditions later this morning.
Stable conditions will continue throughout the next few days with the forecast remaining mostly dry. Light winds will allow localized sea breezes each afternoon with land breezes at night. Regardless, VFR conditions are expected to prevail.
Marine
A ridge near the islands will drift around a bit over the next few days, causing trade wind speeds to vary between gentle to moderate and moderate to fresh speeds. A front approaching from the northwest will cause winds to veer to southeasterlies as they become light tonight into Tuesday. Strengthening high pressure north of the area will push a weakening front into the islands, increasing shower chances and bumping wind speeds back into the moderate to locally fresh category, Tuesday night and Wednesday. Stronger winds and much higher combined seas (due to an extra large northwest swell) will likely require an SCA beginning Wednesday for most coastal waters zones.
A NW (320 degrees) swell is forecast to arrive later today and gradually build through Monday. Surf along exposed north and west- facing shores may approach High Surf Advisory levels Monday into Tuesday. A much larger NNW (330 degree) swell is scheduled to arrive Wednesday with surf likely reaching High Surf Warning level through Thursday. A series of very small, medium to long- period S (190 degrees) swells may provide small bumps in south shore surf through early next week.
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