State weather

Hawaii weather

Forecasts for 1 city in Hawaii from the National Weather Service. 2 NWS alerts are active in Hawaii, including 1 warning.

City forecasts: snapshot of Oct 27, 8:15 PM HST Alerts updated Oct 27, 8:15 PM HST
Hawaii cities
CityCountyObservedForecastPopulation
HonoluluHonolulu County— · RainTonight: Occasional Showers And Thunderstorms, low 70°F344,967

Observed temperatures come from the NWS station nearest each city at the time of the snapshot. Open a city for current conditions, the next 24 hours and the 7-day forecast, loaded live from api.weather.gov.

Active alerts in Hawaii

Flood Watch Severe Future

Flood Watch issued October 27 at 3:04PM HST until October 29 at 5:00AM HST by NWS Honolulu HI

Area
Niihau; Kauai Southwest; Kauai Mountains; Waianae Coast; Oahu North Shore; Olomana; Central Oahu; Waianae Mountains; Lanai Mauka; Kahoolawe; Maui Windward West; Maui Leeward West; Haleakala Summit; Kona; Kohala; Big Island Interior; Big Island Summit; Kauai North; Kauai East; Kauai South; East Honolulu; Honolulu Metro; Ewa Plain; Koolau Windward; Koolau Leeward; Molokai Windward; Molokai Southeast; Molokai North; Molokai West; Molokai Leeward South; Lanai Windward; Lanai Leeward; Lanai South; Maui Central Valley North; Maui Central Valley South; Windward Haleakala; Kipahulu; South Maui/Upcountry; South Haleakala; Big Island South; Big Island Southeast; Big Island East; Big Island North
In effect
Oct 27, 3:04 PM HST
Until
Oct 29, 5:00 AM HST
Issued by
NWS Honolulu HI
Full text

A trough moving over the state from west to east will bring abundant tropical moisture through at least Wednesday night. Heavy rain and isolated thunderstorms are expected to produce flash flooding, and while the greatest flood threat will be focused over Oahu and Maui County, all islands are at risk. * WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...All main Hawaiian Islands. * WHEN...Through late Wednesday night. * IMPACTS...Significant flooding may occur due to the overflow of streams and drainages. Roads in several areas may be closed, along with property damage in urban or low lying spots due to runoff. Landslides may also occur in areas with steep terrain. * ADDITIONAL DETAILS... - Heavy showers and isolated thunderstorms with intense rain rates may develop at any time through Wednesday night as a trough moves over the state from the west. While the greatest flood threat will be focused over Oahu and Maui County, all islands are at risk.

What to do: You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.

High Wind Warning Severe Expected

High Wind Warning issued October 27 at 3:04PM HST until October 28 at 12:00PM HST by NWS Honolulu HI

Area
Big Island Summit
In effect
Oct 27, 6:00 PM HST
Until
Oct 28, 12:00 PM HST
Issued by
NWS Honolulu HI
Full text

* WHAT...Southwest winds 30 to 40 mph with gusts up to 80 mph expected. * WHERE...Big Island Summits. * WHEN...Until noon HST Wednesday. * IMPACTS...Winds this strong can make driving and walking dangerous. The winds can forcefully open doors and damage hinges or slam doors shut, possibly causing injuries.

What to do: Motorists, especially those in high profile vehicles, are urged to drive with extreme caution.

For official warnings, check weather.gov and your local authorities. OpenForecast repeats National Weather Service alerts and may be delayed or incomplete. Follow instructions from emergency officials.

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Sources

  • Forecasts, observations and alerts: National Weather Service API (api.weather.gov/alerts/active?area=HI).
  • Cities and population: U.S. Census Bureau, Vintage 2024 population estimates.
  • These agencies do not endorse OpenForecast.