Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Honolulu, HI
Issued by NWS Honolulu, HI
769
FNHW50 PHFO 211405
FWFHFO
Fire Weather Planning Forecast for Hawaii
National Weather Service Honolulu HI
405 AM HST Thu Aug 21 2025
.DISCUSSION...
Trade winds will remain in the moderate to locally breezy range
into Sunday while a ridge aloft maintains an inversion between
5,500 to 7,000 ft. Under this rather typical August weather
pattern, afternoon relative humidity should remain near summertime
average in the low to mid 50s today. Slightly drier conditions
are possible Friday into the weekend. As a result, near critical
fire weather conditions are expected, though we do not anticipate
fire weather headlines at this time.
HIZ301-220315-
Niihau-
405 AM HST Thu Aug 21 2025
.TODAY...
Sky/weather.........Mostly sunny.
Max temperature.....82 to 88.
Min humidity........50 percent.
20-foot winds.......East 15 to 20 mph.
Mixing height.......3500 ft AGL.
Transport winds.....East 15 to 20 mph.
.TONIGHT...
Sky/weather.........Mostly clear.
Min temperature.....70 to 76.
Max humidity........90 percent.
20-foot winds.......East 10 to 15 mph.
Mixing height.......2000 ft AGL.
Transport winds.....East around 15 mph.
.FRIDAY...
Sky/weather.........Sunny. Isolated showers after noon.
Max temperature.....82 to 88.
Min humidity........50 percent.
20-foot winds.......East 10 to 15 mph.
Mixing height.......3500 ft AGL.
Transport winds.....East around 15 mph.
=
$$
HIZ302-220315-
Kauai North-
Including Princeville, Hanalei, Na Pali State Park
405 AM HST Thu Aug 21 2025
.TODAY...
Sky/weather.........Partly sunny. Scattered showers until noon.
isolated showers after noon.
Max temperature.....78 to 89.
Min humidity........50 percent.
20-foot winds.......East 5 to 15 mph.
Mixing height.......4500 ft AGL.
Transport winds.....East around 15 mph.
.TONIGHT...
Sky/weather.........Partly cloudy. Scattered showers.
Min temperature.....66 to 74.
Max humidity........95 percent.
20-foot winds.......East 5 to 15 mph.
Mixing height.......1500 ft AGL.
Transport winds.....East 10 to 15 mph.
.FRIDAY...
Sky/weather.........Mostly sunny. Isolated showers.
Max temperature.....79 to 90.
Min humidity........50 percent.
20-foot winds.......East 5 to 15 mph.
Mixing height.......4000 ft AGL.
Transport winds.....East around 15 mph.
=
$$
HIZ303-220315-
Kauai East-
Including Lihue, Kapaa, Anahola
405 AM HST Thu Aug 21 2025
.TODAY...
Sky/weather.........Partly sunny. Scattered showers until noon,
then isolated showers.
Max temperature.....76 to 88.
Min humidity........50 percent.
20-foot winds.......East 5 to 15 mph.
Mixing height.......4500 ft AGL.
Transport winds.....East around 15 mph.
.TONIGHT...
Sky/weather.........Mostly cloudy. Scattered showers.
Min temperature.....66 to 77.
Max humidity........90 percent.
20-foot winds.......East 5 to 15 mph.
Mixing height.......2000 ft AGL.
Transport winds.....East around 15 mph.
.FRIDAY...
Sky/weather.........Mostly sunny. Scattered showers until noon,
then isolated showers.
Max temperature.....75 to 89.
Min humidity........50 percent.
20-foot winds.......East 5 to 15 mph.
Mixing height.......4000 ft AGL.
Transport winds.....East around 15 mph.
=
$$
HIZ304-220315-
Kauai South-
Including Poipu, Kalaheo, Koloa
405 AM HST Thu Aug 21 2025
.TODAY...
Sky/weather.........Partly sunny. Scattered showers until noon,
then isolated showers.
Max temperature.....83 to 91.
Min humidity........45 percent.
20-foot winds.......East 10 to 15 mph.
Mixing height.......4500 ft AGL.
Transport winds.....East around 20 mph.
.TONIGHT...
Sky/weather.........Partly cloudy until midnight, then mostly
cloudy. Scattered showers.
Min temperature.....Around 74.
Max humidity........85 percent.
20-foot winds.......Northeast 10 to 15 mph.
Mixing height.......2500 ft AGL.
Transport winds.....East 15 to 20 mph.
.FRIDAY...
Sky/weather.........Mostly sunny. Scattered showers until noon,
then isolated showers.
Max temperature.....84 to 92.
Min humidity........45 percent.
20-foot winds.......East 10 to 15 mph.
Mixing height.......4000 ft AGL.
Transport winds.....East 15 to 20 mph.
=
$$
HIZ305-220315-
Kauai Southwest-
Including Waimea, Waimea Canyon State Park, Hanapepe, Kekaha,
Barking Sands
405 AM HST Thu Aug 21 2025
.TODAY...
Sky/weather.........Mostly sunny. Isolated showers until noon.
Max temperature.....78 to 93.
Min humidity........45 percent.
20-foot winds.......East 5 to 15 mph.
Mixing height.......4500 ft AGL.
Transport winds.....East around 15 mph.
.TONIGHT...
Sky/weather.........Mostly clear. Isolated showers after midnight.
Min temperature.....62 to 76.
Max humidity........100 percent.
20-foot winds.......East 5 to 15 mph.
Mixing height.......1500 ft AGL.
Transport winds.....East 10 to 15 mph.
.FRIDAY...
Sky/weather.........Sunny.
Max temperature.....78 to 93.
Min humidity........40 percent.
20-foot winds.......East 5 to 15 mph.
Mixing height.......4500 ft AGL.
Transport winds.....East around 15 mph.
=
$$
HIZ306-220315-
Kauai Mountains-
405 AM HST Thu Aug 21 2025
.TODAY...
Sky/weather.........Partly sunny. Scattered showers.
Max temperature.....66 to 87.
Min humidity........55 percent.
20-foot winds.......East 15 to 20 mph.
Mixing height.......4500 ft AGL.
Transport winds.....East around 15 mph.
.TONIGHT...
Sky/weather.........Mostly cloudy. Scattered showers.
Min temperature.....59 to 72.
Max humidity........100 percent.
20-foot winds.......East 10 to 20 mph.
Mixing height.......1000 ft AGL.
Transport winds.....East around 15 mph.
.FRIDAY...
Sky/weather.........Mostly sunny. Scattered showers.
Max temperature.....67 to 86.
Min humidity........55 percent.
20-foot winds.......East 10 to 20 mph.
Mixing height.......4000 ft AGL.
Transport winds.....East around 15 mph.
=
$$
HIZ307-220315-
East Honolulu-
Including Hawaii Kai, Aina Haina, Kahala
405 AM HST Thu Aug 21 2025
.TODAY...
Sky/weather.........Mostly sunny. Isolated showers until noon.
Max temperature.....82 to 89.
Min humidity........45 percent.
20-foot winds.......East 10 to 15 mph.
Mixing height.......3500 ft AGL.
Transport winds.....East 20 to 25 mph.
.TONIGHT...
Sky/weather.........Partly cloudy. Isolated showers.
Min temperature.....Around 76.
Max humidity........80 percent.
20-foot winds.......East 10 to 15 mph.
Mixing height.......2000 ft AGL.
Transport winds.....East 20 to 25 mph.
.FRIDAY...
Sky/weather.........Mostly sunny.
Max temperature.....82 to 88.
Min humidity........50 percent.
20-foot winds.......Northeast around 15 mph.
Mixing height.......3500 ft AGL.
Transport winds.....East around 20 mph.
=
$$
HIZ308-220315-
Honolulu Metro-
Including Honolulu, Waikiki
405 AM HST Thu Aug 21 2025
.TODAY...
Sky/weather.........Mostly sunny. Isolated showers until noon.
Max temperature.....Around 88.
Min humidity........45 percent.
20-foot winds.......East 10 to 15 mph.
Mixing height.......4500 ft AGL.
Transport winds.....East around 20 mph.
.TONIGHT...
Sky/weather.........Partly cloudy. Isolated showers.
Min temperature.....Around 77.
Max humidity........80 percent.
20-foot winds.......East 10 to 15 mph.
Mixing height.......1500 ft AGL.
Transport winds.....East 15 to 20 mph.
.FRIDAY...
Sky/weather.........Sunny.
Max temperature.....Around 88.
Min humidity........50 percent.
20-foot winds.......East 10 to 15 mph.
Mixing height.......4000 ft AGL.
Transport winds.....East around 20 mph.
=
$$
HIZ309-220315-
Ewa Plain-
Including Kapolei
405 AM HST Thu Aug 21 2025
.TODAY...
Sky/weather.........Mostly sunny.
Max temperature.....81 to 89.
Min humidity........50 percent.
20-foot winds.......East 10 to 20 mph.
Mixing height.......5000 ft AGL.
Transport winds.....East 15 to 20 mph.
.TONIGHT...
Sky/weather.........Mostly clear.
Min temperature.....70 to 76.
Max humidity........85 percent.
20-foot winds.......East 10 to 15 mph.
Mixing height.......1500 ft AGL.
Transport winds.....East around 15 mph.
.FRIDAY...
Sky/weather.........Sunny.
Max temperature.....81 to 90.
Min humidity........50 percent.
20-foot winds.......East 10 to 20 mph.
Mixing height.......4500 ft AGL.
Transport winds.....East 15 to 20 mph.
=
$$
HIZ310-220315-
Waianae Coast-
Including Nanakuli, Waianae, Makaha
405 AM HST Thu Aug 21 2025
.TODAY...
Sky/weather.........Mostly sunny.
Max temperature.....86 to 91.
Min humidity........45 percent.
20-foot winds.......East 5 to 15 mph.
Mixing height.......5000 ft AGL.
Transport winds.....East around 20 mph.
.TONIGHT...
Sky/weather.........Mostly clear.
Min temperature.....Around 75.
Max humidity........80 percent.
20-foot winds.......East 5 to 15 mph.
Mixing height.......2500 ft AGL.
Transport winds.....East 15 to 20 mph.
.FRIDAY...
Sky/weather.........Sunny.
Max temperature.....Around 89.
Min humidity........45 percent.
20-foot winds.......East 10 to 15 mph.
Mixing height.......5000 ft AGL.
Transport winds.....East around 15 mph.
=
$$
HIZ311-220315-
Oahu North Shore-
Including Waialua, Haleiwa, Pupukea
405 AM HST Thu Aug 21 2025
.TODAY...
Sky/weather.........Mostly sunny. Isolated showers.
Max temperature.....81 to 89.
Min humidity........50 percent.
20-foot winds.......East 5 to 15 mph.
Mixing height.......4500 ft AGL.
Transport winds.....East around 20 mph.
.TONIGHT...
Sky/weather.........Partly cloudy. Isolated showers.
Min temperature.....69 to 76.
Max humidity........95 percent.
20-foot winds.......East 5 to 15 mph.
Mixing height.......2500 ft AGL.
Transport winds.....East around 20 mph.
.FRIDAY...
Sky/weather.........Sunny.
Max temperature.....83 to 90.
Min humidity........45 percent.
20-foot winds.......East 10 to 15 mph.
Mixing height.......4500 ft AGL.
Transport winds.....East around 20 mph.
=
$$
HIZ312-220315-
Koolau Windward-
Including Kahuku, Laie, Punaluu, Kahaluu, Ahuimanu
405 AM HST Thu Aug 21 2025
.TODAY...
Sky/weather.........Mostly cloudy until noon, then mostly sunny.
Scattered showers.
Max temperature.....76 to 87.
Min humidity........55 percent.
20-foot winds.......East 10 to 20 mph.
Mixing height.......4000 ft AGL.
Transport winds.....East around 20 mph.
.TONIGHT...
Sky/weather.........Mostly cloudy. Scattered showers.
Min temperature.....67 to 78.
Max humidity........95 percent.
20-foot winds.......East 10 to 15 mph.
Mixing height.......2500 ft AGL.
Transport winds.....East around 20 mph.
.FRIDAY...
Sky/weather.........Mostly sunny. Isolated showers.
Max temperature.....77 to 87.
Min humidity........50 percent.
20-foot winds.......East 10 to 20 mph.
Mixing height.......3500 ft AGL.
Transport winds.....East around 20 mph.
=
$$
HIZ313-220315-
Koolau Leeward-
Including Nuuanu, Manoa, Palolo
405 AM HST Thu Aug 21 2025
.TODAY...
Sky/weather.........Partly sunny. Scattered showers.
Max temperature.....73 to 87.
Min humidity........55 percent.
20-foot winds.......East 15 to 20 mph.
Mixing height.......4500 ft AGL.
Transport winds.....East around 20 mph.
.TONIGHT...
Sky/weather.........Mostly cloudy. Scattered showers.
Min temperature.....66 to 78.
Max humidity........95 percent.
20-foot winds.......East 10 to 20 mph.
Mixing height.......1500 ft AGL.
Transport winds.....East 15 to 20 mph.
.FRIDAY...
Sky/weather.........Mostly sunny. Scattered showers until noon,
then isolated showers.
Max temperature.....74 to 87.
Min humidity........55 percent.
20-foot winds.......East 15 to 20 mph.
Mixing height.......4000 ft AGL.
Transport winds.....East around 20 mph.
=
$$
HIZ314-220315-
Olomana-
Including Kailua, Kaneohe, Waimanalo
405 AM HST Thu Aug 21 2025
.TODAY...
Sky/weather.........Mostly sunny. Scattered showers until noon,
then isolated showers.
Max temperature.....80 to 86.
Min humidity........55 percent.
20-foot winds.......East 10 to 15 mph.
Mixing height.......4000 ft AGL.
Transport winds.....East around 20 mph.
.TONIGHT...
Sky/weather.........Partly cloudy. Scattered showers until
midnight, then isolated showers.
Min temperature.....72 to 77.
Max humidity........85 percent.
20-foot winds.......East 10 to 15 mph.
Mixing height.......2500 ft AGL.
Transport winds.....East around 20 mph.
.FRIDAY...
Sky/weather.........Mostly sunny.
Max temperature.....79 to 85.
Min humidity........55 percent.
20-foot winds.......East 10 to 15 mph.
Mixing height.......3500 ft AGL.
Transport winds.....East around 20 mph.
=
$$
HIZ315-220315-
Central Oahu-
Including Mililani, Wahiawa, Pearl City
405 AM HST Thu Aug 21 2025
.TODAY...
Sky/weather.........Mostly sunny. Scattered showers until noon,
then isolated showers.
Max temperature.....80 to 86.
Min humidity........50 percent.
20-foot winds.......East 5 to 15 mph.
Mixing height.......5000 ft AGL.
Transport winds.....East 15 to 20 mph.
.TONIGHT...
Sky/weather.........Partly cloudy. Scattered showers.
Min temperature.....68 to 76.
Max humidity........95 percent.
20-foot winds.......East 10 to 15 mph.
Mixing height.......1000 ft AGL.
Transport winds.....East around 15 mph.
.FRIDAY...
Sky/weather.........Sunny. Isolated showers until noon.
Max temperature.....81 to 86.
Min humidity........50 percent.
20-foot winds.......East 10 to 15 mph.
Mixing height.......4500 ft AGL.
Transport winds.....East 15 to 20 mph.
=
$$
HIZ316-220315-
Waianae Mountains-
405 AM HST Thu Aug 21 2025
.TODAY...
Sky/weather.........Mostly sunny. Isolated showers until noon.
Max temperature.....77 to 91.
Min humidity........50 percent.
20-foot winds.......East 10 to 20 mph.
Mixing height.......5000 ft AGL.
Transport winds.....East around 20 mph.
.TONIGHT...
Sky/weather.........Mostly clear.
Min temperature.....65 to 75.
Max humidity........95 percent.
20-foot winds.......East 10 to 15 mph.
Mixing height.......2000 ft AGL.
Transport winds.....East 15 to 20 mph.
.FRIDAY...
Sky/weather.........Sunny.
Max temperature.....77 to 91.
Min humidity........50 percent.
20-foot winds.......East 10 to 15 mph.
Mixing height.......4500 ft AGL.
Transport winds.....East 15 to 20 mph.
=
$$
HIZ317-220315-
Molokai Windward-
Including Kalaupapa, Halawa Valley
405 AM HST Thu Aug 21 2025
.TODAY...
Sky/weather.........Partly sunny. Scattered showers until noon,
then isolated showers.
Max temperature.....71 to 84.
Min humidity........60 percent.
20-foot winds.......Breezy. East 15 to 25 mph.
Mixing height.......3500 ft AGL.
Transport winds.....East around 25 mph.
.TONIGHT...
Sky/weather.........Partly cloudy until midnight, then mostly
cloudy. Scattered showers.
Min temperature.....60 to 75.
Max humidity........100 percent.
20-foot winds.......Breezy. East 15 to 25 mph.
Mixing height.......2500 ft AGL.
Transport winds.....East around 25 mph.
.FRIDAY...
Sky/weather.........Mostly sunny. Isolated showers.
Max temperature.....71 to 85.
Min humidity........60 percent.
20-foot winds.......Breezy. East 15 to 25 mph.
Mixing height.......3000 ft AGL.
Transport winds.....East around 25 mph.
=
$$
HIZ318-220315-
Molokai Southeast-
Including Pukoo
405 AM HST Thu Aug 21 2025
.TODAY...
Sky/weather.........Mostly sunny. Scattered showers until noon,
then isolated showers.
Max temperature.....70 to 85.
Min humidity........55 percent.
20-foot winds.......Breezy. East 20 to 25 mph.
Mixing height.......3000 ft AGL.
Transport winds.....East around 25 mph.
.TONIGHT...
Sky/weather.........Partly cloudy until midnight, then mostly
cloudy. Isolated showers until midnight, then
scattered showers.
Min temperature.....60 to 75.
Max humidity........100 percent.
20-foot winds.......Breezy. East 15 to 25 mph.
Mixing height.......2500 ft AGL.
Transport winds.....East 25 to 30 mph.
.FRIDAY...
Sky/weather.........Mostly sunny. Isolated showers.
Max temperature.....70 to 85.
Min humidity........55 percent.
20-foot winds.......Breezy. East 15 to 25 mph.
Mixing height.......3000 ft AGL.
Transport winds.....East around 25 mph.
=
$$
HIZ319-220315-
Molokai North-
Including Hoolehua
405 AM HST Thu Aug 21 2025
.TODAY...
Sky/weather.........Mostly sunny. Isolated showers until noon.
Max temperature.....76 to 86.
Min humidity........50 percent.
20-foot winds.......Breezy. East 15 to 25 mph.
Mixing height.......4000 ft AGL.
Transport winds.....East 20 to 25 mph.
.TONIGHT...
Sky/weather.........Partly cloudy.
Min temperature.....66 to 75.
Max humidity........100 percent.
20-foot winds.......East 15 to 20 mph.
Mixing height.......2000 ft AGL.
Transport winds.....East around 20 mph.
.FRIDAY...
Sky/weather.........Mostly sunny.
Max temperature.....77 to 86.
Min humidity........55 percent.
20-foot winds.......Breezy. East 15 to 25 mph.
Mixing height.......4000 ft AGL.
Transport winds.....East around 20 mph.
=
$$
HIZ320-220315-
Molokai West-
Including Kepuhi
405 AM HST Thu Aug 21 2025
.TODAY...
Sky/weather.........Sunny.
Max temperature.....83 to 89.
Min humidity........45 percent.
20-foot winds.......Breezy. East 10 to 25 mph.
Mixing height.......3500 ft AGL.
Transport winds.....East 20 to 25 mph.
.TONIGHT...
Sky/weather.........Partly cloudy.
Min temperature.....Around 75.
Max humidity........85 percent.
20-foot winds.......East 10 to 20 mph.
Mixing height.......2000 ft AGL.
Transport winds.....East 20 to 25 mph.
.FRIDAY...
Sky/weather.........Mostly sunny.
Max temperature.....83 to 89.
Min humidity........50 percent.
20-foot winds.......East 10 to 20 mph.
Mixing height.......4000 ft AGL.
Transport winds.....East around 20 mph.
=
$$
HIZ321-220315-
Molokai Leeward South-
Including Kaunakakai, Maunaloa
405 AM HST Thu Aug 21 2025
.TODAY...
Sky/weather.........Sunny.
Max temperature.....75 to 91.
Min humidity........45 percent.
20-foot winds.......Breezy. East 10 to 25 mph.
Mixing height.......4500 ft AGL.
Transport winds.....East around 20 mph.
.TONIGHT...
Sky/weather.........Partly cloudy.
Min temperature.....62 to 76.
Max humidity........100 percent.
20-foot winds.......East 10 to 15 mph.
Mixing height.......1000 ft AGL.
Transport winds.....East 15 to 20 mph.
.FRIDAY...
Sky/weather.........Mostly sunny.
Max temperature.....76 to 90.
Min humidity........50 percent.
20-foot winds.......East 10 to 20 mph.
Mixing height.......4000 ft AGL.
Transport winds.....East 15 to 20 mph.
=
$$
HIZ322-220315-
Lanai Windward-
Including Shipwreck Beach
405 AM HST Thu Aug 21 2025
.TODAY...
Sky/weather.........Mostly sunny.
Max temperature.....80 to 87.
Min humidity........50 percent.
20-foot winds.......Breezy. Northeast 10 to 25 mph.
Mixing height.......4000 ft AGL.
Transport winds.....East 20 to 25 mph.
.TONIGHT...
Sky/weather.........Partly cloudy until midnight, then mostly
cloudy.
Min temperature.....65 to 75.
Max humidity........90 percent.
20-foot winds.......Northeast 10 to 15 mph.
Mixing height.......2000 ft AGL.
Transport winds.....East 15 to 20 mph.
.FRIDAY...
Sky/weather.........Mostly sunny.
Max temperature.....81 to 87.
Min humidity........50 percent.
20-foot winds.......East 10 to 20 mph.
Mixing height.......3500 ft AGL.
Transport winds.....East 15 to 20 mph.
=
$$
HIZ323-220315-
Lanai Leeward-
Including Kaumalapau Harbor
405 AM HST Thu Aug 21 2025
.TODAY...
Sky/weather.........Mostly sunny.
Max temperature.....82 to 88.
Min humidity........50 percent.
20-foot winds.......Breezy. Northeast 10 to 25 mph.
Mixing height.......4000 ft AGL.
Transport winds.....East around 20 mph.
.TONIGHT...
Sky/weather.........Partly cloudy until midnight, then mostly
cloudy.
Min temperature.....70 to 76.
Max humidity........85 percent.
20-foot winds.......Northeast 5 to 15 mph.
Mixing height.......2000 ft AGL.
Transport winds.....East 15 to 20 mph.
.FRIDAY...
Sky/weather.........Mostly sunny.
Max temperature.....82 to 89.
Min humidity........45 percent.
20-foot winds.......East 5 to 15 mph.
Mixing height.......3500 ft AGL.
Transport winds.....East 15 to 20 mph.
=
$$
HIZ324-220315-
Lanai South-
Including Manele
405 AM HST Thu Aug 21 2025
.TODAY...
Sky/weather.........Mostly sunny.
Max temperature.....Around 83.
Min humidity........55 percent.
20-foot winds.......East 5 to 10 mph.
Mixing height.......3500 ft AGL.
Transport winds.....East around 15 mph.
.TONIGHT...
Sky/weather.........Partly cloudy until midnight, then mostly
cloudy.
Min temperature.....Around 73.
Max humidity........85 percent.
20-foot winds.......Northeast 5 to 10 mph.
Mixing height.......2000 ft AGL.
Transport winds.....East around 15 mph.
.FRIDAY...
Sky/weather.........Partly sunny.
Max temperature.....Around 83.
Min humidity........50 percent.
20-foot winds.......East 5 to 10 mph.
Mixing height.......3000 ft AGL.
Transport winds.....East 10 to 15 mph.
=
$$
HIZ325-220315-
Lanai Mauka-
Including Lanai City
405 AM HST Thu Aug 21 2025
.TODAY...
Sky/weather.........Mostly sunny.
Max temperature.....75 to 83.
Min humidity........55 percent.
20-foot winds.......Northeast 5 to 15 mph.
Mixing height.......4000 ft AGL.
Transport winds.....East around 15 mph.
.TONIGHT...
Sky/weather.........Partly cloudy until midnight, then mostly
cloudy.
Min temperature.....66 to 71.
Max humidity........90 percent.
20-foot winds.......Northeast 5 to 15 mph.
Mixing height.......2000 ft AGL.
Transport winds.....East around 15 mph.
.FRIDAY...
Sky/weather.........Partly sunny.
Max temperature.....76 to 84.
Min humidity........55 percent.
20-foot winds.......East 5 to 15 mph.
Mixing height.......3000 ft AGL.
Transport winds.....East around 15 mph.
=
$$
HIZ326-220315-
Kahoolawe-
405 AM HST Thu Aug 21 2025
.TODAY...
Sky/weather.........Sunny.
Max temperature.....81 to 87.
Min humidity........50 percent.
20-foot winds.......Windy. East 15 to 30 mph.
Mixing height.......2500 ft AGL.
Transport winds.....East around 20 mph.
.TONIGHT...
Sky/weather.........Partly cloudy until midnight, then mostly
cloudy.
Min temperature.....70 to 76.
Max humidity........90 percent.
20-foot winds.......East 10 to 20 mph.
Mixing height.......2000 ft AGL.
Transport winds.....East 20 to 25 mph.
.FRIDAY...
Sky/weather.........Mostly sunny.
Max temperature.....82 to 88.
Min humidity........50 percent.
20-foot winds.......Breezy. East 10 to 20 mph until noon, then 20
to 25 mph.
Mixing height.......3000 ft AGL.
Transport winds.....East 20 to 25 mph.
=
$$
HIZ327-220315-
Maui Windward West-
Including Wailuku
405 AM HST Thu Aug 21 2025
.TODAY...
Sky/weather.........Mostly sunny. Scattered showers until noon,
then isolated showers.
Max temperature.....64 to 87.
Min humidity........55 percent.
20-foot winds.......Breezy. East 15 to 25 mph.
Mixing height.......4000 ft AGL.
Transport winds.....East around 20 mph.
.TONIGHT...
Sky/weather.........Partly cloudy until midnight, then mostly
cloudy. Isolated showers.
Min temperature.....56 to 75.
Max humidity........100 percent.
20-foot winds.......East 15 to 20 mph.
Mixing height.......2000 ft AGL.
Transport winds.....East 15 to 20 mph.
.FRIDAY...
Sky/weather.........Partly sunny. Isolated showers.
Max temperature.....65 to 87.
Min humidity........55 percent.
20-foot winds.......East 15 to 20 mph.
Mixing height.......3000 ft AGL.
Transport winds.....East around 20 mph.
=
$$
HIZ328-220315-
Maui Leeward West-
Including Lahaina, Kaanapali
405 AM HST Thu Aug 21 2025
.TODAY...
Sky/weather.........Mostly sunny. Isolated showers until noon.
Max temperature.....81 to 86.
Min humidity........50 percent.
20-foot winds.......East 5 to 15 mph.
Mixing height.......4000 ft AGL.
Transport winds.....East around 20 mph.
.TONIGHT...
Sky/weather.........Partly cloudy until midnight, then mostly
cloudy.
Min temperature.....69 to 76.
Max humidity........90 percent.
20-foot winds.......East 5 to 15 mph.
Mixing height.......2000 ft AGL.
Transport winds.....East 15 to 20 mph.
.FRIDAY...
Sky/weather.........Partly sunny.
Max temperature.....82 to 87.
Min humidity........50 percent.
20-foot winds.......East 5 to 15 mph.
Mixing height.......3000 ft AGL.
Transport winds.....East around 15 mph.
=
$$
HIZ329-220315-
Maui Central Valley North-
Including Kahului
405 AM HST Thu Aug 21 2025
.TODAY...
Sky/weather.........Mostly sunny.
Max temperature.....85 to 90.
Min humidity........40 percent.
20-foot winds.......Breezy. East 5 to 15 mph until 9 AM, then 15 to
25 mph.
Mixing height.......4500 ft AGL.
Transport winds.....East 15 to 20 mph.
.TONIGHT...
Sky/weather.........Partly cloudy until midnight, then mostly
cloudy.
Min temperature.....Around 72.
Max humidity........85 percent.
20-foot winds.......Northeast 10 to 20 mph.
Mixing height.......1000 ft AGL.
Transport winds.....East 15 to 20 mph.
.FRIDAY...
Sky/weather.........Mostly sunny.
Max temperature.....86 to 91.
Min humidity........40 percent.
20-foot winds.......Breezy. Northeast 10 to 15 mph until noon, then
15 to 25 mph.
Mixing height.......4000 ft AGL.
Transport winds.....East 15 to 20 mph.
=
$$
HIZ330-220315-
Maui Central Valley South-
Including Maalaea
405 AM HST Thu Aug 21 2025
.TODAY...
Sky/weather.........Mostly sunny.
Max temperature.....Around 90.
Min humidity........40 percent.
20-foot winds.......East 5 to 15 mph until noon, then south 10 to
20 mph.
Mixing height.......5000 ft AGL.
Transport winds.....East 15 to 20 mph.
.TONIGHT...
Sky/weather.........Partly cloudy until midnight, then mostly
cloudy.
Min temperature.....70 to 77.
Max humidity........85 percent.
20-foot winds.......Northeast 5 to 15 mph.
Mixing height.......1000 ft AGL.
Transport winds.....Northeast 10 to 15 mph.
.FRIDAY...
Sky/weather.........Partly sunny.
Max temperature.....Around 90.
Min humidity........40 percent.
20-foot winds.......Northeast 10 to 15 mph.
Mixing height.......4500 ft AGL.
Transport winds.....Northeast around 15 mph.
=
$$
HIZ331-220315-
Windward Haleakala-
Including Haiku, Makawao, Hana
405 AM HST Thu Aug 21 2025
.TODAY...
Sky/weather.........Partly sunny. Numerous showers until noon, then
scattered showers.
Max temperature.....Around 87 at the shore to around 67 at 5000
feet.
Min humidity........50 percent.
20-foot winds.......East 10 to 15 mph.
Mixing height.......4000 ft AGL.
Transport winds.....East around 20 mph.
.TONIGHT...
Sky/weather.........Mostly cloudy. Scattered showers.
Min temperature.....Around 73 at the shore to around 52 at 5000
feet.
Max humidity........100 percent.
20-foot winds.......East 10 to 15 mph.
Mixing height.......1500 ft AGL.
Transport winds.....East 15 to 20 mph.
.FRIDAY...
Sky/weather.........Partly sunny. Scattered showers until noon.
isolated showers after noon.
Max temperature.....Around 87 at the shore to around 68 at 5000
feet.
Min humidity........50 percent.
20-foot winds.......East 10 to 15 mph.
Mixing height.......3000 ft AGL.
Transport winds.....East 15 to 20 mph.
=
$$
HIZ332-220315-
Kipahulu-
Including Hamoa
405 AM HST Thu Aug 21 2025
.TODAY...
Sky/weather.........Mostly cloudy. Numerous showers until noon,
then scattered showers.
Max temperature.....66 to 81.
Min humidity........60 percent.
20-foot winds.......East 10 to 20 mph.
Mixing height.......3500 ft AGL.
Transport winds.....East around 20 mph.
.TONIGHT...
Sky/weather.........Mostly cloudy. Scattered showers.
Min temperature.....61 to 73.
Max humidity........100 percent.
20-foot winds.......East around 15 mph.
Mixing height.......1000 ft AGL.
Transport winds.....East around 20 mph.
.FRIDAY...
Sky/weather.........Partly sunny. Scattered showers until noon,
then isolated showers.
Max temperature.....66 to 81.
Min humidity........65 percent.
20-foot winds.......East 10 to 20 mph.
Mixing height.......3000 ft AGL.
Transport winds.....East around 20 mph.
=
$$
HIZ333-220315-
South Maui/Upcountry-
Including Kihei, Makena, Pukalani, Kula, Ulupalakua
405 AM HST Thu Aug 21 2025
.TODAY...
Sky/weather.........Mostly sunny.
Max temperature.....Around 85 at the shore to around 72 at 5000
feet.
Min humidity........40 percent.
20-foot winds.......Southeast up to 10 mph until noon, then south.
Mixing height.......4500 ft AGL.
Transport winds.....East around 15 mph.
.TONIGHT...
Sky/weather.........Partly cloudy until midnight, then mostly
cloudy.
Min temperature.....Around 72 at the shore to around 54 at 5000
feet.
Max humidity........100 percent.
20-foot winds.......Southeast 5 to 10 mph.
Mixing height.......500 ft AGL.
Transport winds.....East 10 to 15 mph.
.FRIDAY...
Sky/weather.........Partly sunny.
Max temperature.....Around 86 at the shore to around 73 at 5000
feet.
Min humidity........45 percent.
20-foot winds.......Northeast 5 to 15 mph.
Mixing height.......4000 ft AGL.
Transport winds.....East around 15 mph.
=
$$
HIZ334-220315-
South Haleakala-
Including Kipahulu, Kaupo
405 AM HST Thu Aug 21 2025
.TODAY...
Sky/weather.........Mostly sunny. Scattered showers until noon.
isolated showers after noon.
Max temperature.....69 to 85.
Min humidity........50 percent.
20-foot winds.......Breezy. East 10 to 25 mph.
Mixing height.......3500 ft AGL.
Transport winds.....East around 20 mph.
.TONIGHT...
Sky/weather.........Mostly cloudy. Isolated showers.
Min temperature.....55 to 73.
Max humidity........100 percent.
20-foot winds.......East 15 to 20 mph.
Mixing height.......500 ft AGL.
Transport winds.....East 15 to 20 mph.
.FRIDAY...
Sky/weather.........Partly sunny.
Max temperature.....69 to 86.
Min humidity........50 percent.
20-foot winds.......Breezy. East 10 to 25 mph.
Mixing height.......2500 ft AGL.
Transport winds.....East around 20 mph.
=
$$
HIZ335-220315-
Haleakala Summit-
Including Haleakala National Park Above 6000 feet
405 AM HST Thu Aug 21 2025
.TODAY...
Sky/weather.........Mostly sunny. Scattered showers.
Max temperature.....Around 68 at 7000 feet to around 62 at the
summit.
Min humidity........20 percent.
20-foot winds.......East 5 to 15 mph.
Mixing height.......4000 ft AGL.
Transport winds.....East 15 to 20 mph.
.TONIGHT...
Sky/weather.........Mostly cloudy. Scattered showers.
Min temperature.....46 to 53 at 7000 feet to around 45 at the
summit.
Max humidity........90 percent.
20-foot winds.......East 5 to 15 mph.
Mixing height.......500 ft AGL.
Transport winds.....East 10 to 15 mph.
.FRIDAY...
Sky/weather.........Partly sunny. Isolated showers until noon.
Max temperature.....66 to 71 at 7000 feet to around 62 at the
summit.
Min humidity........20 percent.
20-foot winds.......East 10 to 15 mph.
Mixing height.......2500 ft AGL.
Transport winds.....East around 15 mph.
=
$$
HIZ336-220315-
Kona-
Including Kailua-Kona, Kealakekua, Milolii
405 AM HST Thu Aug 21 2025
.TODAY...
Sky/weather.........Partly sunny. Isolated showers after noon.
Max temperature.....68 to 89.
Min humidity........50 percent.
20-foot winds.......East up to 5 mph until 9 AM, then west.
Mixing height.......3500 ft AGL.
Transport winds.....Northeast around 5 mph shifting to the
northwest in the afternoon.
.TONIGHT...
Sky/weather.........Mostly cloudy. Scattered showers until
midnight.
Min temperature.....50 to 76.
Max humidity........100 percent.
20-foot winds.......South up to 5 mph until midnight, then
northeast.
Mixing height.......1000 ft AGL.
Transport winds.....Northwest around 5 mph shifting to the
northeast after midnight.
.FRIDAY...
Sky/weather.........Mostly cloudy. Isolated showers after noon.
Max temperature.....68 to 89.
Min humidity........50 percent.
20-foot winds.......Southwest up to 10 mph.
Mixing height.......2500 ft AGL.
Transport winds.....East around 5 mph shifting to the northwest in
the afternoon.
=
$$
HIZ337-220315-
Big Island South-
Including Ocean View
405 AM HST Thu Aug 21 2025
.TODAY...
Sky/weather.........Mostly sunny. Isolated showers after noon.
Max temperature.....69 to 89.
Min humidity........45 percent.
20-foot winds.......Breezy. East 10 to 25 mph.
Mixing height.......4000 ft AGL.
Transport winds.....East around 20 mph.
.TONIGHT...
Sky/weather.........Mostly cloudy.
Min temperature.....56 to 76.
Max humidity........100 percent.
20-foot winds.......Northeast 10 to 20 mph.
Mixing height.......1000 ft AGL.
Transport winds.....Northeast 15 to 20 mph.
.FRIDAY...
Sky/weather.........Mostly sunny until noon, then mostly cloudy.
Max temperature.....71 to 90.
Min humidity........45 percent.
20-foot winds.......East 10 to 20 mph.
Mixing height.......3500 ft AGL.
Transport winds.....East 15 to 20 mph.
=
$$
HIZ338-220315-
Big Island Southeast-
Including South Point, Pahala
405 AM HST Thu Aug 21 2025
.TODAY...
Sky/weather.........Mostly sunny. Scattered showers until noon.
isolated showers after noon.
Max temperature.....68 to 91.
Min humidity........45 percent.
20-foot winds.......East 5 to 20 mph.
Mixing height.......3500 ft AGL.
Transport winds.....Northeast around 15 mph.
.TONIGHT...
Sky/weather.........Partly cloudy until midnight, then mostly
cloudy. Isolated showers until midnight.
Min temperature.....54 to 75.
Max humidity........100 percent.
20-foot winds.......Northeast 10 to 15 mph.
Mixing height.......1500 ft AGL.
Transport winds.....Northeast around 15 mph.
.FRIDAY...
Sky/weather.........Mostly sunny until noon, then mostly cloudy.
Max temperature.....70 to 91.
Min humidity........40 percent.
20-foot winds.......Northeast 10 to 20 mph.
Mixing height.......4000 ft AGL.
Transport winds.....Northeast around 15 mph.
=
$$
HIZ339-220315-
Big Island East-
Including Hilo, Volcano, Pahoa, Mountain View, Laupahoehoe
405 AM HST Thu Aug 21 2025
.TODAY...
Sky/weather.........Partly sunny. Numerous showers until noon, then
scattered showers.
Max temperature.....Around 86 at the shore to around 71 at 4000
feet.
Min humidity........55 percent.
20-foot winds.......South up to 10 mph until 9 AM, then east.
Mixing height.......3500 ft AGL.
Transport winds.....East around 10 mph.
.TONIGHT...
Sky/weather.........Mostly cloudy. Scattered showers.
Min temperature.....Around 70 at the shore to around 58 at 4000
feet.
Max humidity........100 percent.
20-foot winds.......Southeast up to 10 mph until midnight, then
west.
Mixing height.......1500 ft AGL.
Transport winds.....East around 10 mph shifting to the north after
midnight.
.FRIDAY...
Sky/weather.........Partly sunny. Scattered showers until noon.
isolated showers after noon.
Max temperature.....Around 85 at the shore to around 71 at 4000
feet.
Min humidity........50 percent.
20-foot winds.......South up to 10 mph until noon, then northeast.
Mixing height.......4000 ft AGL.
Transport winds.....Northeast around 10 mph.
=
$$
HIZ340-220315-
Big Island North-
Including Honokaa, Kamuela, Waipio Valley, Hawi
405 AM HST Thu Aug 21 2025
.TODAY...
Sky/weather.........Mostly sunny. Isolated showers.
Max temperature.....65 to 86.
Min humidity........45 percent.
20-foot winds.......East 5 to 20 mph until noon, then 15 to 20 mph.
Mixing height.......4000 ft AGL.
Transport winds.....East 15 to 20 mph.
.TONIGHT...
Sky/weather.........Mostly cloudy. Isolated showers.
Min temperature.....48 to 72.
Max humidity........100 percent.
20-foot winds.......East 5 to 15 mph.
Mixing height.......1500 ft AGL.
Transport winds.....East around 15 mph.
.FRIDAY...
Sky/weather.........Mostly cloudy.
Max temperature.....66 to 86.
Min humidity........50 percent.
20-foot winds.......East 10 to 20 mph.
Mixing height.......3000 ft AGL.
Transport winds.....East 15 to 20 mph.
=
$$
HIZ341-220315-
Kohala-
Including Kawaihae, Waikoloa, Waikii, Puuanahulu
405 AM HST Thu Aug 21 2025
.TODAY...
Sky/weather.........Partly sunny. Isolated showers after noon.
Max temperature.....Around 87 at the shore to around 67 at 5000
feet.
Min humidity........40 percent.
20-foot winds.......Southeast 5 to 10 mph until 9 AM, then
northwest 5 to 15 mph until 3 PM, then east.
Mixing height.......4500 ft AGL.
Transport winds.....East around 10 mph shifting to the north in the
afternoon.
.TONIGHT...
Sky/weather.........Mostly cloudy.
Min temperature.....Around 76 at the shore to around 57 at 5000
feet.
Max humidity........100 percent.
20-foot winds.......Southeast up to 10 mph.
Mixing height.......1000 ft AGL.
Transport winds.....East around 10 mph.
.FRIDAY...
Sky/weather.........Partly sunny.
Max temperature.....Around 88 at the shore to around 67 at 5000
feet.
Min humidity........40 percent.
20-foot winds.......Southeast up to 10 mph until noon, then
northwest.
Mixing height.......4000 ft AGL.
Transport winds.....East around 10 mph shifting to the north in the
afternoon.
=
$$
HIZ342-220315-
Big Island Interior-
Including Bradshaw Field, Saddle Road Above 5000 feet
405 AM HST Thu Aug 21 2025
.TODAY...
Sky/weather.........Partly sunny. Isolated showers.
Max temperature.....66 to 75 at 5000 feet to 61 to 66 at 8000 feet.
Min humidity........35 percent.
20-foot winds.......East up to 15 mph.
Mixing height.......3500 ft AGL.
Transport winds.....East around 10 mph.
.TONIGHT...
Sky/weather.........Mostly cloudy. Isolated showers until midnight.
Min temperature.....49 to 58 at 5000 feet to 46 to 52 at 8000 feet.
Max humidity........100 percent.
20-foot winds.......Southeast up to 10 mph.
Mixing height.......1000 ft AGL.
Transport winds.....East around 10 mph.
.FRIDAY...
Sky/weather.........Mostly sunny until noon, then mostly cloudy.
Max temperature.....67 to 76 at 5000 feet to around 65 at 8000
feet.
Min humidity........30 percent.
20-foot winds.......East up to 15 mph.
Mixing height.......3500 ft AGL.
Transport winds.....Northeast around 10 mph.
=
$$
HIZ343-220315-
Big Island Summit-
Including Mauna Loa and Mauna Kea Above 8000 feet
405 AM HST Thu Aug 21 2025
.TODAY...
Sky/weather.........Mostly sunny. Isolated showers after noon.
Max temperature.....Around 62 at 9000 feet to around 47 at the
summits.
Min humidity........5 percent.
20-foot winds.......East 5 to 15 mph.
Mixing height.......3500 ft AGL.
Transport winds.....East around 10 mph.
.TONIGHT...
Sky/weather.........Mostly cloudy.
Min temperature.....Around 48 at 9000 feet to around 40 at the
summits.
Max humidity........75 percent.
20-foot winds.......East 5 to 15 mph.
Mixing height.......500 ft AGL.
Transport winds.....East around 10 mph.
.FRIDAY...
Sky/weather.........Mostly sunny until noon, then mostly cloudy.
Max temperature.....Around 62 at 9000 feet to around 47 at the
summits.
Min humidity........5 percent.
20-foot winds.......East 5 to 10 mph.
Mixing height.......3000 ft AGL.
Transport winds.....East around 10 mph.
=
$$
.FORECAST DAYS 3 THROUGH 7...
.SATURDAY...Mostly cloudy. Windward, isolated showers in the
evening. Scattered showers after midnight, then isolated showers.
Lows 74 to 79. Highs 88 to 93. East winds up to 15 mph.
.SUNDAY...Partly cloudy. Windward, isolated showers. Lows 73 to
78. Highs 87 to 92. East winds up to 15 mph.
.MONDAY...Mostly clear. Isolated showers windward. Lows 72 to 77.
Highs 88 to 93. East winds up to 15 mph.
.TUESDAY...Partly cloudy. Isolated showers windward. Lows 73 to
78. Highs 88 to 93. East winds up to 15 mph.
.WEDNESDAY...Mostly cloudy. Windward, isolated showers in the
evening. Scattered showers after midnight, then isolated showers.
Lows 73 to 78. Highs 88 to 93. East winds up to 15 mph.
$$