West Side

Today: Sunny. Highs 79 to 87. Northeast winds up to 15 mph shifting to the east in the afternoon.

Tonight: Partly cloudy in the evening then becoming mostly cloudy. Lows 67 to 74. Northeast winds 10 to 15 mph decreasing to up to 15 mph after midnight.

Monday: Partly sunny in the morning then becoming mostly sunny. Highs 80 to 87. East winds up to 15 mph shifting to the northeast in the afternoon. Gusts up to 35 mph.

South Side

Today: Sunny and breezy. Highs around 88. Northeast winds 10 to 20 mph.

Tonight: Partly cloudy. Lows 66 to 75. Northeast winds 10 to 15 mph.

ARTICLE CONTINUES BELOW AD

ARTICLE CONTINUES BELOW AD

Monday: Mostly sunny. Breezy. Highs around 89. Northeast winds 10 to 20 mph. Gusts up to 40 mph in the afternoon.

North Shore

Today: Partly sunny with scattered showers in the morning, then mostly sunny with isolated showers in the afternoon. Highs 78 to 83 near the shore to around 68 near 5000 feet. East winds 10 to 15 mph. Chance of rain 50 percent.

Tonight: Mostly cloudy with scattered showers. Lows around 70 near the shore to 47 to 54 near 5000 feet. East winds 10 to 15 mph. Chance of rain 50 percent.

Monday: Mostly cloudy with scattered showers. Highs 78 to 84 near the shore to around 68 near 5000 feet. East winds 10 to 15 mph. Chance of rain 50 percent.

Central Maui

Today: Sunny and breezy. Highs 80 to 87. Northeast winds 10 to 20 mph.

Tonight: Partly cloudy. Lows 66 to 71. Northeast winds 10 to 15 mph.

Monday: Mostly sunny. Breezy. Highs 81 to 88. Northeast winds 10 to 20 mph.

Upcountry

Today: Mostly sunny. Scattered showers in the morning. Highs around 68 at the visitor center to around 74 at the summit. Northeast winds 10 to 15 mph. Chance of rain 50 percent.

Tonight: Partly cloudy in the evening then becoming mostly cloudy. Isolated showers. Lows around 51 at the visitor center to around 54 at the summit. East winds 10 to 15 mph. Chance of rain 20 percent.

Monday: Partly sunny. Scattered showers in the morning, then isolated showers in the afternoon. Highs around 67 at the visitor center to around 65 at the summit. East winds 10 to 15 mph. Chance of rain 50 percent.

East Maui

ARTICLE CONTINUES BELOW AD

Today: Partly sunny with scattered showers in the morning, then mostly sunny with isolated showers in the afternoon. Highs 78 to 83 near the shore to around 68 near 5000 feet. East winds 10 to 15 mph. Chance of rain 50 percent.

Tonight: Mostly cloudy with scattered showers. Lows around 70 near the shore to 47 to 54 near 5000 feet. East winds 10 to 15 mph. Chance of rain 50 percent.

Monday: Mostly cloudy with scattered showers. Highs 78 to 84 near the shore to around 68 near 5000 feet. East winds 10 to 15 mph. Chance of rain 50 percent.

Lanai City

Today: Sunny and breezy. Isolated showers in the afternoon. Highs 73 to 81. Northeast winds 10 to 20 mph. Chance of rain 20 percent.

Tonight: Partly cloudy. Lows around 64. Northeast winds 10 to 15 mph.

Monday: Mostly sunny. Breezy. Highs 73 to 81. Northeast winds 10 to 20 mph.

Kaunakakai

Today: Sunny and breezy. Highs 69 to 91. Northeast winds 10 to 20 mph.

Tonight: Partly cloudy. Lows 57 to 74. Northeast winds 10 to 15 mph.

Monday: Mostly sunny. Breezy. Highs 70 to 90. Northeast winds 10 to 25 mph.

Detailed Forecast

Synopsis

A stable, moderate trade wind pattern will prevail through Monday with mainly light showers focused over the windward and mountain areas. Increasing trade winds, and slightly wetter conditions, are possible during the middle of the week, with breezy trades continuing into next weekend.

Discussion

No significant changes to the forecast with the morning package. In the short term the main change for today was a small uptick in showers for the windward side of the Big Island. Other changes in the later periods of the forecast were to nudge the forecast to the latest National Blend of Models as we head into next weekend.
With a ridge building to the north of the islands, expect trades to prevail through the week. The pressure gradient will tighten Monday and Tuesday as the ridge strengthens, and then another uptick is possible later in the week into the weekend.
A stable airmass remains overhead, limiting shower activity and amounts into Monday. The mid level ridge will begin to lift northward Monday and Tuesday, allowing some additional shower activity to spread over the islands. The GFS and ECMWF are in good agreement with an uptick in shower activity Tuesday/Wednesday. During the second half of the week, the GFS remains a bit wetter than the ECMWF. The current forecast leans towards that slightly wetter pattern.

Aviation

Moderate to locally breezy trade winds are expected to continue through Monday. Brief periods of MVFR conditions with clouds and passing showers will be possible, mainly over windward and mauka areas. Otherwise VFR conditions are expected to prevail.
No AIRMETs are currently in effect.

Marine

High pressure far northeast of the state will keep gentle to locally fresh trade winds into Monday. The ridge to the north looks to strengthen over the next few days and bring back moderate to locally strong trade winds Tuesday. A Small Craft Advisory will likely go back up for the typical windy waters around Maui County and the Big Island.
Small surf will hold along south facing shores over the next few days as the current small south- southeast swell will hold today before a south- southwest swell will build in Monday and maintain small surf through the first half of next week. Into the long range, a moderate long period south southwest swell is expected towards the end of next week as a strong low in the southwest pacific continues to develop.
Surf along north facing shores will remain tiny to small as a northeast swell comes through before declining Monday. Surf along east facing shores will trend up Tuesday as trade winds strengthen across the region.
The combination of higher than normal water levels and afternoon spring tides are resulting in water levels running over half a foot above guidance around the Big Island and Maui. This will cause minor coastal flooding issues for both Big Island and Maui this afternoon during peak high tide.

HFO Watches/Warnings/Advisories

None.