Hilo

Tonight: Mostly cloudy. Occasional showers in the evening, then showers likely after midnight. Lows 67 to 73 near the shore to around 61 at 4000 feet. Northeast winds up to 10 mph. Chance of rain 90 percent.

Sunday: Mostly cloudy. Showers likely in the morning, then scattered showers in the afternoon. Highs 80 to 87 near the shore to around 69 at 4000 feet. East winds up to 10 mph. Chance of rain 70 percent.

Sunday Night: Mostly cloudy. Showers likely in the evening, then occasional showers after midnight. Lows 66 to 73 near the shore to 56 to 61 at 4000 feet. Northeast winds up to 10 mph. Chance of rain 80 percent.

Kona

Tonight: Partly cloudy. Isolated showers in the evening. Lows around 76 near the shore to around 55 near 5000 feet. Light winds. Chance of rain 20 percent.

Sunday: Mostly sunny in the morning, then mostly cloudy with scattered showers in the afternoon. Highs 84 to 90 near the shore to around 70 near 5000 feet. Light winds. Chance of rain 40 percent.

Sunday Night: Partly cloudy with isolated showers. Lows 73 to 78 near the shore to 52 to 57 near 5000 feet. Light winds. Chance of rain 20 percent.

Waimea

Tonight: Mostly cloudy. Showers likely in the evening, then scattered showers after midnight. Lows 67 to 74 near the shore to 60 to 67 near 3000 feet. East winds up to 15 mph. Chance of rain 70 percent.

Sunday: Partly sunny with scattered showers. Highs 66 to 86. East winds up to 15 mph increasing to 10 to 15 mph in the afternoon. Chance of rain 50 percent.

Sunday Night: Mostly cloudy in the evening then becoming partly cloudy. Breezy. Scattered showers. Lows 65 to 73 near the shore to 58 to 65 near 3000 feet. East winds 10 to 20 mph. Chance of rain 50 percent.

Kohala

Tonight: Mostly cloudy. Showers likely in the evening, then scattered showers after midnight. Lows 67 to 74 near the shore to 60 to 67 near 3000 feet. East winds up to 15 mph. Chance of rain 70 percent.

Sunday: Partly sunny with scattered showers. Highs 66 to 86. East winds up to 15 mph increasing to 10 to 15 mph in the afternoon. Chance of rain 50 percent.

Sunday Night: Mostly cloudy in the evening then becoming partly cloudy. Breezy. Scattered showers. Lows 65 to 73 near the shore to 58 to 65 near 3000 feet. East winds 10 to 20 mph. Chance of rain 50 percent.

South Big Island

Tonight: Breezy. Partly cloudy with isolated showers. Lows around 77 near the shore to around 57 near 5000 feet. Northeast winds up to 20 mph. Chance of rain 20 percent.

Sunday: Breezy. Mostly sunny with isolated showers. Highs around 87 near the shore to around 70 near 5000 feet. East winds 10 to 20 mph. Chance of rain 20 percent.

Sunday Night: Mostly clear. Breezy. Isolated showers in the evening. Lows around 76 near the shore to around 55 near 5000 feet. East winds 10 to 20 mph. Chance of rain 20 percent.

Puna

Tonight: Mostly cloudy. Occasional showers in the evening, then showers likely after midnight. Lows 67 to 73 near the shore to around 61 at 4000 feet. Northeast winds up to 10 mph. Chance of rain 90 percent.

Sunday: Mostly cloudy. Showers likely in the morning, then scattered showers in the afternoon. Highs 80 to 87 near the shore to around 69 at 4000 feet. East winds up to 10 mph. Chance of rain 70 percent.

Sunday Night: Mostly cloudy. Showers likely in the evening, then occasional showers after midnight. Lows 66 to 73 near the shore to 56 to 61 at 4000 feet. Northeast winds up to 10 mph. Chance of rain 80 percent.

Waikoloa

Tonight: Partly cloudy. Isolated showers in the evening. Lows around 77 near the shore to around 58 above 4000 feet. Light winds. Chance of rain 20 percent.

Sunday: Mostly sunny. Isolated showers in the morning, then scattered showers in the afternoon. Highs 85 to 90 near the shore to 68 to 75 above 4000 feet. Light winds. Chance of rain 40 percent.

Sunday Night: Mostly clear. Isolated showers in the evening. Lows around 77 near the shore to 54 to 59 above 4000 feet. North winds up to 10 mph shifting to the east after midnight. Gusts up to 30 mph. Chance of rain 20 percent.

Detailed Forecast

Synopsis

The remnants of Hector will move in tonight and will produce another humid day on Sunday with some passing showers primarily over windward areas. Trade winds should return across the state by Sunday afternoon and become locally breezy on Monday. Our typical moderate to locally breezy trade wind weather is expected for the first half of next week.

Discussion

The remnants of Gilma is centered just northwest of Kauai this afternoon and continues to move westward. For tonight, we should see the trades fill in a bit more over the eastern half of the state and we should see the remnant moisture of Hector move in as well. Latest satellite imagery of the remnant moisture of Hector is not very impressive thus we are not expecting much in terms of rainfall amounts. Showers should be most active over windward Big Island tonight and possibly east Maui. The remnant moisture should keep the dewpoints high (low to mid 70s) though and another muggy night should be expected.
For Sunday, the remnant moisture of Hector should move into to the western half of the state and at the same time we should see moderate trade winds return across the state. Passing showers will focus over windward and mountain areas with a few making its way over leeward areas. Dewpoints will continue to remain on the higher side so although trades will return, it should still feel rather muggy on Sunday.
Starting Monday, we should return to our typical trade wind weather and we should see trades pick up to the moderate to locally breezy speeds with dewpoints back down to the upper 60s. Overall, a relatively dry trade wind pattern is expected during the first half of next week with some light showers moving into windward areas. Trade winds may weaken some by mid week as a trough drops southward far north of the state. At this time the trough is not expected to impact the state, but it could bring some lighter trade winds during the second half of next week.

Aviation

Southeasterly winds in the wake of the remnants of Gilma will gradually shift to easterly through tomorrow as a more typical trade wind pattern builds back in. Clouds and showers will be pulled up from the south to southeast today, then switch to the windward areas tonight through tomorrow.
No AIRMETs are in effect and none are expected.

Marine

Light to moderate southerly winds over the western end of the state will transition to moderate to locally fresh southeasterlies state-wide tonight as Gilma's remnant circulation moves off to the north-northwest. Easterly trades return by Sunday, then become locally strong Monday into the middle of next week.
East facing shores, currently seeing diminishing surf, will get a slight bump as returning trades increase into early next week. Small background swells from the south and southeast will maintain small surf along south facing shores. A small northwest swell will slowly diminish through the remainder of the weekend, allowing north facing exposures to return to typically tiny summertime conditions.

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