Today: Mostly cloudy. Numerous showers in the morning, then scattered showers in the afternoon. Highs 76 to 83 near the shore to around 68 at 4000 feet. Northeast winds up to 15 mph. Chance of rain 70 percent.
Tonight: Scattered showers in the evening, then showers after midnight. Lows 62 to 70 near the shore to around 56 at 4000 feet. North winds up to 10 mph. Chance of rain near 100 percent.
Friday: Mostly cloudy. Showers in the morning, then scattered showers in the afternoon. Highs 76 to 83 near the shore to 65 to 70 at 4000 feet. Northeast winds up to 10 mph. Chance of rain 90 percent.
Kona
Today: Mostly sunny in the morning, then mostly cloudy with scattered showers in the afternoon. Highs 83 to 88 near the shore to around 69 near 5000 feet. South winds up to 10 mph shifting to the west in the afternoon. Chance of rain 40 percent.
Tonight: Partly cloudy with isolated showers. Lows around 73 near the shore to 49 to 54 near 5000 feet. Light winds. Chance of rain 20 percent.
ARTICLE CONTINUES BELOW AD
ARTICLE CONTINUES BELOW AD
Friday: Mostly sunny in the morning, then mostly cloudy with scattered showers in the afternoon. Highs 83 to 88 near the shore to around 68 near 5000 feet. Light winds. Chance of rain 40 percent.
Waimea
Today: Breezy. Mostly sunny with scattered showers in the morning, then mostly cloudy with isolated showers in the afternoon. Highs 73 to 80 near the shore to 67 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.
Tonight: Breezy. Partly cloudy with isolated showers in the evening, then mostly cloudy with scattered showers after midnight. Lows 62 to 70 near the shore to 55 to 62 near 3000 feet. East winds up to 20 mph increasing to 10 to 20 mph after midnight. Gusts up to 40 mph. Chance of rain 50 percent.
Friday: Partly sunny. Breezy. Scattered showers in the morning, then isolated showers in the afternoon. Highs 73 to 79 near the shore to 67 to 78 near 3000 feet. East winds 10 to 20 mph. Chance of rain 50 percent.
Kohala
Today: Breezy. Mostly sunny with scattered showers in the morning, then mostly cloudy with isolated showers in the afternoon. Highs 73 to 80 near the shore to 67 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.
ARTICLE CONTINUES BELOW AD
Tonight: Breezy. Partly cloudy with isolated showers in the evening, then mostly cloudy with scattered showers after midnight. Lows 62 to 70 near the shore to 55 to 62 near 3000 feet. East winds up to 20 mph increasing to 10 to 20 mph after midnight. Gusts up to 40 mph. Chance of rain 50 percent.
Friday: Partly sunny. Breezy. Scattered showers in the morning, then isolated showers in the afternoon. Highs 73 to 79 near the shore to 67 to 78 near 3000 feet. East winds 10 to 20 mph. Chance of rain 50 percent.
South Big Island
Today: Breezy. Mostly sunny in the morning, then partly sunny with isolated showers in the afternoon. Highs around 85 near the shore to around 67 near 5000 feet. East winds up to 25 mph. Chance of rain 20 percent.
Tonight: Partly cloudy. Breezy. Lows around 73 near the shore to around 53 near 5000 feet. Northeast winds 10 to 20 mph.
Friday: Breezy. Mostly sunny in the morning, then mostly cloudy with isolated showers in the afternoon. Highs around 84 near the shore to around 67 near 5000 feet. East winds 10 to 25 mph. Chance of rain 20 percent.
Puna
ARTICLE CONTINUES BELOW AD
Today: Mostly cloudy. Numerous showers in the morning, then scattered showers in the afternoon. Highs 76 to 83 near the shore to around 68 at 4000 feet. Northeast winds up to 15 mph. Chance of rain 70 percent.
Tonight: Scattered showers in the evening, then showers after midnight. Lows 62 to 70 near the shore to around 56 at 4000 feet. North winds up to 10 mph. Chance of rain near 100 percent.
Friday: Mostly cloudy. Showers in the morning, then scattered showers in the afternoon. Highs 76 to 83 near the shore to 65 to 70 at 4000 feet. Northeast winds up to 10 mph. Chance of rain 90 percent.
Waikoloa
Today: Breezy. Sunny in the morning, then partly sunny with isolated showers in the afternoon. Highs 82 to 88 near the shore to 66 to 74 above 4000 feet. Northeast winds up to 25 mph. Chance of rain 20 percent.
Tonight: Partly cloudy. Breezy. Lows around 73 near the shore to 51 to 56 above 4000 feet. Southeast winds up to 20 mph.
Friday: Breezy. Mostly sunny in the morning, then partly sunny with isolated showers in the afternoon. Highs 81 to 87 near the shore to 66 to 73 above 4000 feet. Northeast winds up to 20 mph. Chance of rain 20 percent.
Detailed Forecast
Synopsis
A high pressure ridge will linger north of the Hawaiian Islands into next week producing moderate to breezy trade winds. Weak upper level troughing will keep brief periods of windward showers in the forecast favoring windward and mountain areas with drier conditions over leeward locations. Clouds and showers will develop along the Kona slopes of the Big Island each afternoon and evening.
Discussion
A fairly typical moderate to breezy trade wind weather pattern will continue as a high pressure ridge remains locked in place north of the Hawaiian Islands into next week. Weak upper level troughing will keep the trade wind temperature inversion heights between 5,000 to 7,000 feet for much of the forecast period. Trade wind inversion heights at this level will keep brief periods of shower activity in the forecast, mainly over windward and mountain areas as the trade winds lift the moisture over the windward mountain peaks. Shower activity in these windward mountain areas will trend higher in the overnight to early morning hours. Drier conditions are forecast over leeward locations. High level cirrus clouds will move over the state into the weekend, enhancing sunrise and sunset colors.
Not much day to day changes in the weather forecast over the next seven days. A slight increasing trend in the easterly trade wind speeds may develop by next week Wednesday.
Aviation
Moderate to breezy trade winds will persist over the next couple of days. SHRA and low cigs will favor windward and mauka areas bringing brief periods of MVFR conds. A few SHRA may make it to leeward sides but otherwise, VFR conds should prevail.
AIRMET Sierra for mtn obsc is in effect for windward portions of Oahu and Molokai.
Marine
Fresh to strong easterly trades will continue through the weekend, as the surface ridge remains north of the area. This supports the Small Craft Advisory (SCA) continuing for the windier channels and waters around Maui County and the Big Island each day.
Surf along south facing shores will hold steady today due to a mix of a fading south-southwest swell and a small, medium-period southeast swell moving through. A fresh, long-period south swell is expected to arrive tonight into Friday, then peak late Friday into Saturday. This swell could produce near warning-level surf through its peak late Friday into Saturday. A gradual downward trend is expected Sunday into early next week. After this swell moves out, very little swell is expected next week beginning around Tuesday.
Surf along north-facing shores will remain up above the summertime average (flat) today as a short-period north- northwest swells move through. A downward trend is expected Friday through the weekend.
Surf along east-facing shores will remain small and choppy each day due to a limited trade wind fetch upstream of the islands.
HFO Watches/Warnings/Advisories
Small Craft Advisory until 6 PM HST Saturday for Maalaea Bay, Pailolo Channel, Alenuihaha Channel, Big Island Leeward Waters, Big Island Southeast Waters.
This comments section is a public community forum for the purpose of free expression. Although Big Island Now encourages respectful communication only, some content may be considered offensive. Please view at your own discretion. View Comments
