Active National Weather Service alert for Kahului, HI: Flood Watch. Flood Watch issued October 27 at 2:54AM HST until October 29 at 5:00AM HST by NWS Honolulu HI Until Thu, 5:00 AM HST.
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Kahului, HI weather, straight from the source.

Current conditions, official National Weather Service forecasts and alerts, rain timing, local radar, air quality, wind, humidity, sunrise, sunset, and the latest reported update for Kahului, HI. Always follow local warnings and emergency instructions.

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Weather status

Flood Watch

Flood Watch issued October 27 at 2:54AM HST until October 29 at 5:00AM HST by NWS Honolulu HI Expires Thu, 5:00 AM HST.

Official NOAA / NWSWSR-88D DopplerUpdates every 5 minutes

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Low rain chance for the next 6 hours

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What’s next

Hourly forecast

⌖ Kahului, HI

Check the latest hourly conditions, seven-day outlook, rain timing, wind, sunrise and sunset for Kahului, HI. Forecasts and alerts update from NOAA and the National Weather Service.

74°Mostly Clear11% rain
74°Isolated Rain Showers22% rain
74°Isolated Rain Showers22% rain
75°Isolated Rain Showers22% rain
78°Isolated Rain Showers22% rain
81°Isolated Rain Showers22% rain
84°Isolated Rain Showers22% rain
85°Chance Showers And Thunderstorms59% rain

Next 24 hours

Rain Timeline

Highest chance 86%

Most likely around 12 PM, 1 PM, 2 PM, 3 PM. Expected type: Rain / Thunderstorms.

11%None
22%Rain
22%Rain
22%Rain
22%Rain
22%Rain
22%Rain
59%Thunderstorms
59%Thunderstorms
59%Thunderstorms
59%Thunderstorms
59%Thunderstorms
59%Thunderstorms
86%Thunderstorms
86%Thunderstorms
86%Thunderstorms
86%Thunderstorms
86%Thunderstorms
86%Thunderstorms
86%Thunderstorms
86%Thunderstorms
86%Thunderstorms
86%Thunderstorms
86%Thunderstorms

Official NWS outlook

7-Day Forecast

High / low temperatures

Today

! NWS
85°69°

Chance Showers And Thunderstorms

Precipitation
86%
Wind
NNE 2 to 14 mph
Sunrise
6:27 AM
Sunset
5:54 PM

Wed

83°69°

Occasional Showers And Thunderstorms

Precipitation
90%
Wind
NNE 5 to 9 mph
Sunrise
6:27 AM
Sunset
5:53 PM

Thu

84°69°

Chance Rain Showers

Precipitation
68%
Wind
NE 8 mph
Sunrise
6:28 AM
Sunset
5:53 PM

Fri

85°69°

Scattered Rain Showers

Precipitation
42%
Wind
NE 10 mph
Sunrise
6:28 AM
Sunset
5:52 PM

Sat

85°68°

Isolated Rain Showers

Precipitation
27%
Wind
NE 8 mph
Sunrise
6:29 AM
Sunset
5:52 PM

Sun

84°73°

Isolated Rain Showers

Precipitation
23%
Wind
NNE 7 to 14 mph
Sunrise
6:29 AM
Sunset
5:51 PM

Mon

83°Low not available yet

Mostly Sunny then Scattered Rain Showers

Precipitation
27%
Wind
NE 15 mph
Sunrise
6:30 AM
Sunset
5:51 PM

Forecasts, icons, precipitation, wind, and alerts are from the National Weather Service. Sunrise and sunset are calculated locally for the selected coordinates.

Weather for a healthier day

Healthy Weather

Real Feel74°F
Walking is not recommended now

Review the active Flood Watch before going outside. MyUSA.us will not recommend this activity while an NWS watch, warning, or emergency is active.

WindN2 mph
Best walk timeReview the active Flood Watch before leaving

MyUSA.us will not recommend an outing window while an NWS watch, warning, or emergency is active. Follow the official alert and local instructions.

Official EPA AirNowLocal air qualityKahului, HI
View AQI +
More weather details
Wind gustsNot reported
Rain now11%next hour
Humidity82%current
Daily peak UV forecastChecking…EPA daily maximum · not a current reading

Wind impact: Light wind with little expected outdoor impact.

Full Healthy Weather guides and reminders →

“Better weather window” is planning guidance based on official NWS data—not a promise of safe conditions. Review active alerts and radar before leaving.

Storm & DetailsGusts, pressure, visibility and official risk outlooksView details +
Wind gustNot reported
Pressure—
Visibility10.0 mi
Peak rain chance86%
Dew point68°F
Active alerts1

Official risk outlooks

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Severe · Future

Flood Watch

Applies to: 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 NorthIssued by: NWS Honolulu HIFlood Watch issued October 27 at 2:54AM HST until October 29 at 5:00AM HST by NWS Honolulu HI
Alert detailsA trough moving over the state will bring abundant tropical moisture today 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...From 6 AM HST this morning 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 are expected to develop today and continue through Wednesday night as a trough moves over the state. While the greatest flood threat will be focused over Oahu and Maui County, all islands are at risk.
Safety instructionsYou should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.
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