Hilo

Today: Mostly cloudy with isolated showers. Highs around 78 near the shore to 62 to 67 at 4000 feet. North winds up to 10 mph. Chance of rain 20 percent.

Tonight: Mostly cloudy. Scattered showers in the evening, then isolated showers after midnight. Lows 64 to 69 near the shore to around 51 at 4000 feet. North winds up to 10 mph. Chance of rain 40 percent.

Thursday: Mostly cloudy. Scattered showers in the morning, then isolated showers in the afternoon. Highs around 78 near the shore to 62 to 67 at 4000 feet. Northeast winds up to 10 mph. Chance of rain 50 percent.

Kona

Today: Mostly sunny early in the morning, then partly sunny with isolated showers in the late morning and afternoon. Highs around 80 near the shore to around 63 near 5000 feet. Light winds. Chance of rain 20 percent.

Tonight: Mostly cloudy with isolated showers in the evening, then partly cloudy after midnight. Lows 68 to 73 near the shore to around 52 near 5000 feet. Light winds. Chance of rain 20 percent.

Thursday: Mostly sunny in the morning then becoming partly sunny. Isolated showers. Highs around 80 near the shore to around 63 near 5000 feet. Light winds becoming southwest up to 10 mph in the afternoon. Chance of rain 20 percent.

Waimea

Today: Partly sunny with isolated showers. Highs around 76 near the shore to 63 to 72 near 3000 feet. Light winds. Chance of rain 20 percent.

Tonight: Mostly cloudy with isolated showers. Lows around 66 near the shore to 52 to 59 near 3000 feet. East winds up to 10 mph. Chance of rain 20 percent.

Thursday: Partly sunny with isolated showers. Highs around 76 near the shore to 63 to 72 near 3000 feet. East winds up to 15 mph. Chance of rain 20 percent.

Kohala

Today: Partly sunny with isolated showers. Highs around 76 near the shore to 63 to 72 near 3000 feet. Light winds. Chance of rain 20 percent.

Tonight: Mostly cloudy with isolated showers. Lows around 66 near the shore to 52 to 59 near 3000 feet. East winds up to 10 mph. Chance of rain 20 percent.

Thursday: Partly sunny with isolated showers. Highs around 76 near the shore to 63 to 72 near 3000 feet. East winds up to 15 mph. Chance of rain 20 percent.

South Big Island

Today: Mostly sunny. Highs around 81 near the shore to around 67 near 5000 feet. Southeast winds up to 10 mph.

Tonight: Partly cloudy. Lows 65 to 72 near the shore to around 51 near 5000 feet. East winds up to 10 mph in the evening becoming light.

Thursday: Mostly sunny. Highs around 81 near the shore to around 67 near 5000 feet. East winds up to 15 mph.

Puna

Today: Mostly cloudy with isolated showers. Highs around 78 near the shore to 62 to 67 at 4000 feet. North winds up to 10 mph. Chance of rain 20 percent.

Tonight: Mostly cloudy. Scattered showers in the evening, then isolated showers after midnight. Lows 64 to 69 near the shore to around 51 at 4000 feet. North winds up to 10 mph. Chance of rain 40 percent.

Thursday: Mostly cloudy. Scattered showers in the morning, then isolated showers in the afternoon. Highs around 78 near the shore to 62 to 67 at 4000 feet. Northeast winds up to 10 mph. Chance of rain 50 percent.

Waikoloa

Today: Mostly sunny. Highs around 82 near the shore to 64 to 69 above 4000 feet. Northwest winds up to 10 mph.

Tonight: Mostly clear. Lows 67 to 73 near the shore to 48 to 55 above 4000 feet. East winds up to 10 mph.

Thursday: Mostly sunny. Highs around 82 near the shore to 64 to 69 above 4000 feet. Northeast winds up to 10 mph shifting to the north in the afternoon.

Detailed Forecast

Synopsis

Mostly dry and pleasant conditions will prevail through the weekend as high pressure builds to the north. Light to moderate northerly winds will shift out of a more typical northeast trade wind direction today, then remain in place through the weekend. As the trades return, clouds and light showers will favor the typical windward and mauka locations overnight through the morning hours.

Discussion

The latest model guidance has initialized well with the current pattern and depicts mostly dry conditions prevailing through the weekend as high pressure builds north of the state. The northerly winds will linger this morning, then shift out of the northeast through the rest of the day (light enough for localized land and sea breeze conditions). Although mostly dry conditions will prevail, a weak upper trough moving in today through Thursday, combined with a remnant low-level moisture boundary settling south into the area may be enough for a few light showers over north through northeast facing slopes. The light northeast flow will become breezy Thursday, briefly weaken late Friday through Saturday as a weak system passes to the north, then shift out of the east and return to breezy levels Sunday into early next week as high pressure builds to the north.

Aviation

Light north to northeast flow will allow local sea breeze development across sheltered areas today. Expect brief MVFR conditions across windward and mauka locations, especially within sparse showers. Otherwise, VFR conditions should prevail through the TAF period.
No AIRMETS are in effect and none are expected today and tonight.

Marine

Light to moderate northerlies will veer to the northeast today. High pressure will build north of the region and drift east as trades persist into next week, becoming moderate to fresh by this weekend.
Surf along south facing shores came in notably higher and will hold through Thursday as overlapping south swells will keep elevated surf through the end of the week. The current northwest swell will become increasingly north as it gradually lowers through Thursday. Surf along east facing shores remains small through late week before trending up slightly as trade strengthen late this week.

HFO Watches/Warnings/Advisories

None.

Big Island Now Weather is brought to you by Blue Hawaiian Helicopters.

Check out their Big Island Helicopter Tours today!

Data Courtesy of NOAA.gov