Hawaii County Weather Forecast for June 20, 2022

Photo Credit: James Grenz

Hilo

Today: Mostly cloudy with showers likely. Highs around 83 near the shore to 68 to 73 at 4000 feet. Southeast winds up to 15 mph shifting to the east in the afternoon. Chance of rain 70 percent.

Tonight: Mostly cloudy with scattered showers. Lows around 66 near the shore to around 52 at 4000 feet. East winds up to 10 mph shifting to the north after midnight. Chance of rain 50 percent.

Tuesday: Partly sunny with scattered showers. Highs around 82 near the shore to 68 to 73 at 4000 feet. Northeast winds up to 15 mph shifting to the east in the afternoon. Chance of rain 50 percent.

Kona

Today: Mostly cloudy with isolated showers in the morning, then mostly cloudy with scattered showers in the afternoon. Highs 81 to 86 near the shore to around 68 near 5000 feet. West winds up to 10 mph. Chance of rain 50 percent.

Tonight: Mostly cloudy with scattered showers in the evening, then partly cloudy with isolated showers after midnight. Lows 67 to 73 near the shore to around 53 near 5000 feet. Light winds. Chance of rain 50 percent.

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Tuesday: Mostly sunny in the morning, then partly sunny with isolated showers in the afternoon. Highs 81 to 86 near the shore to around 68 near 5000 feet. West winds up to 10 mph. Chance of rain 20 percent.

Waimea

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Today: Breezy. Partly sunny with scattered showers. Highs around 81 near the shore to 68 to 78 near 3000 feet. East winds up to 20 mph. Chance of rain 50 percent.

Tonight: Mostly cloudy in the evening then partly cloudy. Breezy. Scattered showers. Lows around 66 near the shore to 54 to 60 near 3000 feet. East winds 10 to 20 mph decreasing to up to 20 mph after midnight. Chance of rain 50 percent.

Tuesday: Breezy. Partly sunny with scattered showers. Highs around 80 near the shore to 68 to 78 near 3000 feet. East winds up to 25 mph increasing to 10 to 25 mph in the afternoon. Chance of rain 50 percent.

Kohala

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Today: Breezy. Partly sunny with scattered showers. Highs around 81 near the shore to 68 to 78 near 3000 feet. East winds up to 20 mph. Chance of rain 50 percent.

Tonight: Mostly cloudy in the evening then partly cloudy. Breezy. Scattered showers. Lows around 66 near the shore to 54 to 60 near 3000 feet. East winds 10 to 20 mph decreasing to up to 20 mph after midnight. Chance of rain 50 percent.

Tuesday: Breezy. Partly sunny with scattered showers. Highs around 80 near the shore to 68 to 78 near 3000 feet. East winds up to 25 mph increasing to 10 to 25 mph in the afternoon. Chance of rain 50 percent.

South Big Island

Today: Breezy. Mostly sunny with isolated showers in the morning, then partly sunny with scattered showers in the afternoon. Highs around 85 near the shore to around 72 near 5000 feet. Southeast 10 to 25 mph. Chance of rain 40 percent.

Tonight: Mostly cloudy early in the evening then becoming mostly clear. Breezy. Scattered showers early in the evening. Lows around 68 near the shore to around 51 near 5000 feet. Northeast 10 to 20 mph. Chance of rain 40 percent.

Tuesday: Mostly sunny. Breezy. Isolated showers in the afternoon. Highs around 85 near the shore to around 72 near 5000 feet. East winds up to 25 mph increasing to 10 to 25 mph in the afternoon. Chance of rain 20 percent.

Puna

Today: Mostly cloudy with showers likely. Highs around 83 near the shore to 68 to 73 at 4000 feet. Southeast winds up to 15 mph shifting to the east in the afternoon. Chance of rain 70 percent.

Tonight: Mostly cloudy with scattered showers. Lows around 66 near the shore to around 52 at 4000 feet. East winds up to 10 mph shifting to the north after midnight. Chance of rain 50 percent.

Tuesday: Partly sunny with scattered showers. Highs around 82 near the shore to 68 to 73 at 4000 feet. Northeast winds up to 15 mph shifting to the east in the afternoon. Chance of rain 50 percent.

Waikoloa

Today: Mostly sunny with isolated showers in the morning, then partly sunny with scattered showers in the afternoon. Highs around 85 near the shore to 69 to 75 above 4000 feet. Northeast winds up to 10 mph shifting to the northwest in the afternoon. Chance of rain 50 percent.

Tonight: Mostly cloudy with scattered showers early in the evening, then partly cloudy with isolated showers in the late evening and overnight. Lows 68 to 73 near the shore to 49 to 56 above 4000 feet. Northeast winds up to 15 mph shifting to southeast after midnight. Chance of rain 50 percent.

Tuesday: Mostly sunny in the morning, then partly sunny with isolated showers in the afternoon. Highs around 85 near the shore to 69 to 75 above 4000 feet. Northwest up to 15 mph. Chance of rain 20 percent.

Synopsis

Moderate to locally breezy trade southeast will persist through the middle of the week, with a slight easing possible late in the week into next weekend. A typical rainfall pattern will focus on the smaller islands at times. Meanwhile leeward portions of the Big Island will see little showers each afternoon and during the overnight hours.

Discussion

Currently at the surface, a 1032 mb high centered around 1700 miles northeast of Honolulu, and driving moderate to locally breezy trade across the island chain early this morning. Infrared satellite imagery shows mostly cloudy conditions across much of the state, with a few more cloud cover over the Big Island sections. Radar imagery shows scattered showers moving into windward areas, with mainly dry conditions in leeward areas. Main short term focus revolves around rain chances and trade wind trends.
High pressure northeast of the state will strengthen slightly during the next couple days and remain This will keep moderate to locally breezy trade in place across the state. The high will begin to weaken and lift northeast and further away from the region through the remainder of the work week and into the weekend, while new high-rise buildings to the north of the island chain. Moderate to locally breezy trades Fridays throughout the weekend.
Most of the time the weather is overcast, with bands of showery low clouds moving through the islands at times. Showers will be most prevalent in windward areas, especially in the early morning hours, with few showers reaching the smaller islands from time to time. Big Island each day as well, mainly in the afternoon and overnight hours.

Aviation

A high pressure system northeast of the islands will keep moderate to locally breezy trade southeast in Tuesday. A band of unstable clouds only today Tuesday morning as this band slowly passes through the state. This cloud band may also bring brief showers into drier leeward areas today and tonight.
The AIRMET for mountain obscurations issued this morning for windward sections of the Big Island and Maui. Brief MVFR conditions and showers will spread west to smaller islands later today.

Marine

Fresh from the ridge weakens. The Small Craft Advisory for the typically windier areas around Maui County and Big Island remains extended through Tuesday.
Surf along southwest shores will remain up through the first half of the week as overlapping southwest to southwest swells roll through. The one arriving later today should peak by Tuesday night, hold through midweek, then ease through the second half of the week. Plenty of action currently east-southeast of New Zealand This source should arrive at the end of next weekend out of the south.
Surf along exposed north and west shores came over the weekend and is running a little higher at select spots than predicted. Early morning buoy observations support this trend continuing through the morning hours, before easing this afternoon through Tuesday. After this moves out, a return of summer time conditions is expected up north.
The trades hold. Guidance does little to moderate northeast swell moving through next weekend from a batch of strong northeast off the west coast.

HFO Watches / Warnings / Advisories

Small Craft Advisory until 6 PM HST Tuesday for Maalaea Bay, Pailolo Channel, Alenuihaha Channel, Big Island Leeward Waters, Big Island Southeast Waters.

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Courtesy Data of NOAA.gov

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