Hilo

Tonight: Mostly cloudy. Scattered showers and slight chance of thunderstorms early in the evening, then scattered showers in the late evening and overnight. Lows 63 to 71 near the shore to 55 to 60 at 4000 feet. Southeast winds up to 10 mph. Chance of rain 50 percent.

Sunday: Partly sunny with scattered showers. Highs around 81 near the shore to around 70 at 4000 feet. Southeast winds up to 15 mph increasing to 10 to 15 mph in the afternoon. Chance of rain 50 percent.

Sunday Night: Mostly cloudy with scattered showers. Lows 62 to 70 near the shore to 54 to 59 at 4000 feet. South winds around 10 mph. Chance of rain 50 percent.

Kona

Tonight: Mostly cloudy. A 20 percent chance of thunderstorms early in the evening. Lows around 73 near the shore to around 54 near 5000 feet. Light winds becoming northeast up to 10 mph after midnight.

Sunday: Mostly cloudy with scattered showers. Highs 82 to 87 near the shore to around 68 near 5000 feet. Light winds. Chance of rain 50 percent.

Sunday Night: Mostly cloudy. Scattered showers early in the evening. Lows around 72 near the shore to around 53 near 5000 feet. Light winds becoming south up to 10 mph after midnight. Chance of rain 50 percent.

Waimea

Tonight: Mostly cloudy. Scattered showers and slight chance of thunderstorms early in the evening. Lows 64 to 72 near the shore to 57 to 64 near 3000 feet. Light winds becoming southeast up to 10 mph after midnight. Chance of rain 50 percent.

Sunday: Mostly cloudy with scattered showers. Highs around 80 near the shore to 70 to 76 near 3000 feet. South winds up to 10 mph. Chance of rain 40 percent.

Sunday Night: Mostly cloudy. Scattered showers early in the evening. Lows 63 to 71 near the shore to 57 to 63 near 3000 feet. South winds up to 10 mph in the evening becoming light. Chance of rain 40 percent.

Kohala

Tonight: Mostly cloudy. Scattered showers and slight chance of thunderstorms early in the evening. Lows 64 to 72 near the shore to 57 to 64 near 3000 feet. Light winds becoming southeast up to 10 mph after midnight. Chance of rain 50 percent.

Sunday: Mostly cloudy with scattered showers. Highs around 80 near the shore to 70 to 76 near 3000 feet. South winds up to 10 mph. Chance of rain 40 percent.

Sunday Night: Mostly cloudy. Scattered showers early in the evening. Lows 63 to 71 near the shore to 57 to 63 near 3000 feet. South winds up to 10 mph in the evening becoming light. Chance of rain 40 percent.

South Big Island

Tonight: Mostly cloudy. Slight chance of thunderstorms early in the evening. Isolated showers after midnight. Lows around 75 near the shore to around 56 near 5000 feet. East winds 10 to 15 mph. Chance of rain 20 percent.

Sunday: Partly sunny with scattered showers. Highs around 84 near the shore to around 68 near 5000 feet. East winds 10 to 15 mph. Chance of rain 50 percent.

Sunday Night: Mostly cloudy. Scattered showers early in the evening. Lows around 74 near the shore to around 56 near 5000 feet. East winds around 10 mph. Chance of rain 50 percent.

Puna

Tonight: Mostly cloudy. Scattered showers and slight chance of thunderstorms early in the evening, then scattered showers in the late evening and overnight. Lows 63 to 71 near the shore to 55 to 60 at 4000 feet. Southeast winds up to 10 mph. Chance of rain 50 percent.

Sunday: Partly sunny with scattered showers. Highs around 81 near the shore to around 70 at 4000 feet. Southeast winds up to 15 mph increasing to 10 to 15 mph in the afternoon. Chance of rain 50 percent.

Sunday Night: Mostly cloudy with scattered showers. Lows 62 to 70 near the shore to 54 to 59 at 4000 feet. South winds around 10 mph. Chance of rain 50 percent.

Waikoloa

Tonight: Mostly cloudy. Slight chance of thunderstorms and isolated showers early in the evening. Lows around 73 near the shore to around 56 above 4000 feet. Light winds. Chance of rain 20 percent.

Sunday: Mostly cloudy with scattered showers. Highs 81 to 86 near the shore to 64 to 70 above 4000 feet. Light winds. Chance of rain 50 percent.

Sunday Night: Mostly cloudy. Scattered showers early in the evening. Lows around 73 near the shore to around 56 above 4000 feet. Light winds. Chance of rain 50 percent.

Detailed Forecast

Synopsis

Showers and isolated thunderstorms will spread over the western half of the state tonight and become heavy over central portions of the state Sunday into Sunday night. Flash flooding is possible. The heaviest rain is currently anticipated over Oahu and Molokai, and possibly Kauai.

Short term update

Issued at 814 PM HST Sat Apr 11 2026
The current forecast remains well on track, highlighting light winds through the next several days. Observations have shown light rainfall across the Hawaiian Islands, particularly across Maui and the Big Island, but amounting to under five hundredths of an inch of precipitation. Latest radar imagery depicts shower activity moving into the western islands, which lines up well with the current forecast. A Flood Watch remains in effect for all islands through Monday afternoon. Further analysis as this evolves will be shown on the morning update. Therefore, no amendments will be made this afternoon.

Aviation

An unstable band of deep tropical moisture will move up from the south under an upper level disturbance. Weather conditions will destabilize later tonight, producing widespread MVFR and isolated IFR conditions statewide with low clouds, showers and thunderstorms from early Sunday morning through Monday. Light and variable winds will prevail at all airfields.
AIRMET Sierra remains in effect for mountain obscuration above 1500 ft for Oahu, Molokai and Lanai. Mountain obscuration coverage will likely be expanded overnight as showers develop.

Marine

Issued at 814 PM HST Sat Apr 11 2026
A surface trough will linger in the vicinity of the central islands into early next week, keeping moderate to fresh southeasterly winds to its east, and light and variable winds to its west. This weak surface boundary along with an upper level disturbance moving into the region may help to bring another round of showers and isolated thunderstorms tonight through Sunday. As the surface trough lifts north and high pressure to the northeast begins to takes over at the surface, gentle to moderate easterly trades will gradually develop across the Hawaiian coastal waters by the end of next week.
A medium-period south swell will gradually decline through Monday. By Tuesday, however, a new south swell will arrive, once again providing a boost to surf along south facing shores through mid week before gradually subsiding into the weekend.
A moderate, short to medium-period northwest swell generated by the gale force low to the northwest filled in early this morning and is providing small to moderate surf to north and west facing shores this afternoon. Another northwest reinforcement will arrive on Sunday and maintain small to moderate surf through the weekend, followed by a decline in northwest swell energy next week.
Surf along east facing shores remains below seasonal average with lighter than average trade winds near and upstream of the islands forecast through next week.

HFO Watches/Warnings/Advisories

Flood Watch through Monday afternoon for Big Island East, Big Island Interior, Big Island North, Big Island South, Big Island Southeast, Big Island Summits, Central Oahu, East Honolulu, Ewa Plain, Haleakala Summit, Honolulu Metro, Kahoolawe, Kauai East, Kauai Mountains, Kauai North, Kauai South, Kauai Southwest, Kipahulu, Kohala, Kona, Koolau Leeward, Koolau Windward, Lanai Leeward, Lanai Mauka, Lanai South, Lanai Windward, Maui Central Valley North, Maui Central Valley South, Maui Leeward West, Maui Windward West, Molokai Leeward South, Molokai North, Molokai Southeast, Molokai West, Molokai Windward, Niihau, Oahu North Shore, Olomana, South Haleakala, South Maui/Upcountry, Waianae Coast, Waianae Mountains, Windward Haleakala.

Data Courtesy of NOAA.gov