What is the weather in Keaau right now?

Current weather in Keaau is overcast clouds.

Where can I find the hourly weather forecast for Keaau?

This page shows hourly weather forecast for Keaau, including temperature, wind, precipitation, humidity and cloud cover.

Is the weather forecast for Keaau updated regularly?

Weather data for Keaau is updated regularly with the latest available observations and forecasts.

Now · 1:16 AM

Keaau Weather & Hourly Forecast

United States · Hawaii · 96749

68°F

Overcast night

Feels like: 71°F

💧 Humidity 99% 🌡 Pressure 29.94 inHg 💨 Wind 6 mph 👁 Visibility ☁ Clouds 98% ☀️ UV index 0.0 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Keaau

Today

2:00 AM

Overcast night

68° 💧 None 💨 6 mph H 99%29.94 inHg

11:00 AM

Partly cloudy

80° 💧 None 💨 8 mph H 58%29.97 inHg

8:00 PM

Mostly clear night

71° 💧 None 💨 7 mph H 84%29.94 inHg

Tomorrow

5:00 AM

Clear night

67° 💧 None 💨 6 mph H 91%29.91 inHg

2:00 PM

Light rain

80° 💧 None 💨 8 mph H 74%29.85 inHg

11:00 PM

Mostly clear night

70° 💧 None 💨 5 mph H 96%29.94 inHg

Tuesday

8:00 AM

Sunny

77° 💧 None 💨 4 mph H 78%29.94 inHg

5:00 PM

Light rain

77° 💧 None 💨 6 mph H 85%29.88 inHg

Wednesday

2:00 AM

Mostly clear night

69° 💧 None 💨 5 mph H 91%29.94 inHg

11:00 AM

Light rain

81° 💧 None 💨 9 mph H 75%30.00 inHg

8:00 PM

Light rain

74° 💧 None 💨 9 mph H 94%29.97 inHg

Thursday

5:00 AM

Light thunderstorms

70° 💧 None 💨 5 mph H 98%29.97 inHg

2:00 PM

Light thunderstorms

77° 💧 None 💨 5 mph H 87%29.94 inHg

11:00 PM

Light rain

72° 💧 None 💨 2 mph H 99%30.03 inHg

Friday

8:00 AM

Light rain

73° 💧 None 💨 4 mph H 97%30.03 inHg

8:00 PM

Light rain

72° 💧 None 💨 3 mph H 99%30.03 inHg

Today

2:00 AM

Overcast night

68° 💧 None 💨 6 mph H 99%29.94 inHg

5:00 AM

Partly cloudy night

68° 💧 None 💨 7 mph H 98%29.91 inHg

8:00 AM

Mostly sunny

71° 💧 None 💨 6 mph H 92%29.97 inHg

11:00 AM

Partly cloudy

80° 💧 None 💨 8 mph H 58%29.97 inHg

2:00 PM

Mostly cloudy

79° 💧 None 💨 10 mph H 65%29.88 inHg

5:00 PM

Partly cloudy

75° 💧 None 💨 8 mph H 72%29.88 inHg

8:00 PM

Mostly clear night

71° 💧 None 💨 7 mph H 84%29.94 inHg

11:00 PM

Mostly clear night

69° 💧 None 💨 7 mph H 85%29.97 inHg

Tomorrow

2:00 AM

Clear night

68° 💧 None 💨 6 mph H 89%29.91 inHg

5:00 AM

Clear night

67° 💧 None 💨 6 mph H 91%29.91 inHg

8:00 AM

Sunny

76° 💧 None 💨 5 mph H 69%29.94 inHg

11:00 AM

Light rain

82° 💧 None 💨 7 mph H 65%29.91 inHg

2:00 PM

Light rain

80° 💧 None 💨 8 mph H 74%29.85 inHg

5:00 PM

Partly cloudy

76° 💧 None 💨 7 mph H 85%29.85 inHg

8:00 PM

Clear night

71° 💧 None 💨 5 mph H 97%29.94 inHg

11:00 PM

Mostly clear night

70° 💧 None 💨 5 mph H 96%29.94 inHg

Tuesday

2:00 AM

Mostly clear night

70° 💧 None 💨 4 mph H 91%29.91 inHg

5:00 AM

Mostly clear night

70° 💧 None 💨 4 mph H 86%29.88 inHg

8:00 AM

Sunny

77° 💧 None 💨 4 mph H 78%29.94 inHg

11:00 AM

Light rain

82° 💧 None 💨 6 mph H 72%29.94 inHg

2:00 PM

Light rain

80° 💧 None 💨 6 mph H 80%29.88 inHg

5:00 PM

Light rain

77° 💧 None 💨 6 mph H 85%29.88 inHg

8:00 PM

Light rain

73° 💧 None 💨 5 mph H 96%29.97 inHg

11:00 PM

Mostly clear night

70° 💧 None 💨 5 mph H 98%29.97 inHg

Wednesday

2:00 AM

Mostly clear night

69° 💧 None 💨 5 mph H 91%29.94 inHg

5:00 AM

Partly cloudy night

70° 💧 None 💨 7 mph H 91%29.94 inHg

8:00 AM

Partly cloudy

76° 💧 None 💨 7 mph H 84%30.00 inHg

11:00 AM

Light rain

81° 💧 None 💨 9 mph H 75%30.00 inHg

2:00 PM

Light rain

82° 💧 None 💨 11 mph H 72%29.91 inHg

5:00 PM

Light rain

77° 💧 None 💨 10 mph H 89%29.91 inHg

8:00 PM

Light rain

74° 💧 None 💨 9 mph H 94%29.97 inHg

11:00 PM

Light rain

71° 💧 None 💨 7 mph H 97%29.97 inHg

Thursday

2:00 AM

Light rain

70° 💧 None 💨 8 mph H 98%29.94 inHg

5:00 AM

Light thunderstorms

70° 💧 None 💨 5 mph H 98%29.97 inHg

8:00 AM

Light rain

73° 💧 None 💨 4 mph H 98%30.00 inHg

11:00 AM

Light rain

79° 💧 None 💨 5 mph H 81%30.00 inHg

2:00 PM

Light thunderstorms

77° 💧 None 💨 5 mph H 87%29.94 inHg

5:00 PM

Light rain

74° 💧 None 💨 3 mph H 98%29.94 inHg

8:00 PM

Light rain

72° 💧 None 💨 5 mph H 99%30.00 inHg

11:00 PM

Light rain

72° 💧 None 💨 2 mph H 99%30.03 inHg

Friday

2:00 AM

Light rain

71° 💧 None 💨 4 mph H 99%30.00 inHg

5:00 AM

Mostly cloudy night

70° 💧 None 💨 5 mph H 99%29.97 inHg

8:00 AM

Light rain

73° 💧 None 💨 4 mph H 97%30.03 inHg

11:00 AM

Light rain

78° 💧 None 💨 5 mph H 82%30.03 inHg

2:00 PM

Light rain

80° 💧 None 💨 7 mph H 75%29.97 inHg

8:00 PM

Light rain

72° 💧 None 💨 3 mph H 99%30.03 inHg

Saturday

2:00 AM

Overcast night

70° 💧 None 💨 3 mph H 97%30.00 inHg

8:00 AM

Light rain

74° 💧 None 💨 4 mph H 93%30.03 inHg

2:00 PM

Light rain

78° 💧 None 💨 7 mph H 80%29.97 inHg

8:00 PM

Light rain

74° 💧 None 💨 5 mph H 90%30.03 inHg

Sunday

2:00 AM

Partly cloudy night

70° 💧 None 💨 5 mph H 97%30.03 inHg

8:00 AM

Mostly sunny

74° 💧 None 💨 7 mph H 86%30.03 inHg

2:00 PM

Moderate rain

77° 💧 None 💨 9 mph H 83%29.97 inHg

8:00 PM

Light rain

71° 💧 None 💨 8 mph H 99%30.03 inHg

Monday

2:00 AM

Mostly cloudy night

69° 💧 None 💨 9 mph H 95%30.00 inHg

8:00 AM

Light rain

72° 💧 None 💨 9 mph H 92%30.03 inHg

2:00 PM

Moderate rain

76° 💧 None 💨 8 mph H 87%30.00 inHg

8:00 PM

Very heavy rain

70° 💧 None 💨 6 mph H 99%30.06 inHg

Tuesday

2:00 AM

Light rain

70° 💧 None 💨 7 mph H 99%30.03 inHg

8:00 AM

Moderate rain

73° 💧 None 💨 5 mph H 99%30.06 inHg

2:00 PM

Heavy rain

74° 💧 None 💨 5 mph H 96%30.03 inHg

8:00 PM

Moderate rain

72° 💧 None 💨 4 mph H 99%30.06 inHg

Wednesday

2:00 AM

Moderate rain

71° 💧 None 💨 3 mph H 99%30.03 inHg

8:00 AM

Moderate rain

73° 💧 None 💨 5 mph H 99%30.09 inHg

2:00 PM

Heavy rain

75° 💧 None 💨 6 mph H 94%30.00 inHg

8:00 PM

Light rain

71° 💧 None 💨 3 mph H 100%30.03 inHg

Thursday

2:00 AM

Moderate rain

70° 💧 None 💨 4 mph H 99%30.00 inHg

8:00 AM

Light rain

73° 💧 None 💨 7 mph H 94%30.03 inHg

2:00 PM

Mostly cloudy

79° 💧 None 💨 10 mph H 61%29.94 inHg

8:00 PM

Light rain

69° 💧 None 💨 6 mph H 94%30.00 inHg

Friday

2:00 AM

Partly cloudy night

66° 💧 None 💨 8 mph H 89%29.94 inHg

8:00 AM

Light rain

73° 💧 None 💨 7 mph H 74%30.00 inHg

2:00 PM

Light rain

79° 💧 None 💨 9 mph H 69%29.94 inHg

8:00 PM

Light rain

70° 💧 None 💨 6 mph H 94%30.00 inHg

Saturday

2:00 AM

Light rain

68° 💧 None 💨 4 mph H 97%30.00 inHg

8:00 AM

Light rain

71° 💧 None 💨 7 mph H 96%30.06 inHg

2:00 PM

Light rain

76° 💧 None 💨 9 mph H 78%30.00 inHg

8:00 PM

Light rain

70° 💧 None 💨 7 mph H 95%30.06 inHg

Sunday

2:00 AM

Partly cloudy night

66° 💧 None 💨 8 mph H 91%30.03 inHg

8:00 AM

Mostly sunny

73° 💧 None 💨 7 mph H 80%30.06 inHg

In Keaau and, more broadly, across the state of Hawaii: Clear skies will continue into the evening, with temperatures remaining steady around 78 degrees Fahrenheit. Light eastward winds will blow at speeds up to 7 mph, with gusts reaching 8 mph. No rain is expected during the next few hours, providing a calm and pleasant evening. Temperatures are expected to stay mild to warm, making for comfortable conditions as night approaches.

15-Day Weather Outlook for Keaau

TomorrowTomorrow

Mostly cloudy 82°/67° 💧 0.002 in 💨 10 mph

Tuesday, Sep 15Tue Sep 15

Light rain 82°/70° 💧 0.093 in 💨 8 mph

Wednesday, Sep 16Wed Sep 16

Light rain 81°/69° 💧 0.223 in 💨 9 mph

Thursday, Sep 17Thu Sep 17

Light thunderstorms 82°/70° 💧 0.901 in 💨 11 mph

Friday, Sep 18Fri Sep 18

Light thunderstorms 78°/70° 💧 0.363 in 💨 5 mph

Saturday, Sep 19Sat Sep 19

Light rain 80°/70° 💧 0.223 in 💨 7 mph

Sunday, Sep 20Sun Sep 20

Light rain 78°/70° 💧 0.232 in 💨 7 mph

Monday, Sep 21Mon Sep 21

Moderate rain 77°/69° 💧 0.419 in 💨 9 mph

Tuesday, Sep 22Tue Sep 22

Very heavy rain 76°/70° 💧 2.418 in 💨 8 mph

Wednesday, Sep 23Wed Sep 23

Heavy rain 74°/71° 💧 1.874 in 💨 5 mph

Thursday, Sep 24Thu Sep 24

Heavy rain 75°/70° 💧 1.653 in 💨 7 mph

Friday, Sep 25Fri Sep 25

Light rain 79°/66° 💧 0.127 in 💨 10 mph

Saturday, Sep 26Sat Sep 26

Light rain 79°/68° 💧 0.243 in 💨 9 mph

Sunday, Sep 27Sun Sep 27

Light rain 76°/66° 💧 0.252 in 💨 9 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Keaau

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Keaau

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 2:00 AM

PM2.5 Fine particles Good 1,8µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Good 5,2µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Good 56,8µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 0,1µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Air quality is favorable for outdoor activities.

UV & HEALTH

UV, Sun & Health Outlook in Keaau

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.

0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme

Today UV 9,8Very high 😊Good

Tomorrow UV 12,4Extreme 🙂Fair

Tuesday UV 11,2Extreme 🙂Fair

Wednesday UV 11,6Extreme 🙂Fair

Thursday UV 6,0High 🙂Fair

Friday UV 6,0High —Unavailable

Saturday UV 6,0High —Unavailable

Hourly UV index today

7:00 AMUV 0,3 8:00 AMUV 1,5 9:00 AMUV 3,7 10:00 AMUV 6,7 11:00 AMUV 9,1 12:00 PMUV 9,8 1:00 PMUV 9,6 2:00 PMUV 7,6 3:00 PMUV 5,1 4:00 PMUV 2,5 5:00 PMUV 0,8 6:00 PMUV 0,1

Today's weather health advice Open today's recommendations.

Very high UV risk

Use SPF 50+ sunscreen, a hat and sunglasses. Seek shade and limit exposure around midday.

Good air quality

Air quality is good and outdoor activities can be enjoyed normally.

Comfortable temperature conditions

Temperatures should feel comfortable for most people, with no particular heat or cold precautions needed.

Best in the morning or late in the day

For walking, running or cycling, prefer the early morning or late afternoon.

WIND OUTLOOK

Hourly Wind Forecast for Keaau

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · KEAAU, HAWAII

Tonight's Stargazing & Shooting Stars

Fair observing conditions. Best local viewing window: 5:00 AM–6:00 AM.

55/100Best-hour score

BEST TIME TONIGHT 5:00 AM–6:00 AM Astronomical darkness: 7:39 PM–4:53 AM

☁ Cloud cover 54% Real hourly forecast for the best viewing hour.

☾ Moonlight 4% New Moon · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 66° high at the best hour.

✦ Estimated visible meteors 1–3/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min57%

UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.

SEP 5–SEP 21

September ε-PerseidsStart SEP 5 · Peak SEP 9 · End SEP 21 · ZHR 8 · 6% Moon at peak

ACTIVE NOW

SEP 20–NOV 20

Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak

UPCOMING

OCT 2–NOV 7

OrionidsStart OCT 2 · Peak OCT 21 · End NOV 7 · ZHR 20 · 77% Moon at peak

UPCOMING

OCT 20–DEC 10

Northern TauridsStart OCT 20 · Peak NOV 12 · End DEC 10 · ZHR 5 · 7% Moon at peak

UPCOMING

Experimental local observing estimate. Weather values come from the hourly forecast already used on this page. Moon position and astronomical darkness are calculated locally from time and coordinates. Meteor-shower ZHR describes ideal conditions and is not the number of meteors a person should expect to see locally.

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Forecast data for Keaau were last refreshed today at 1:16 AM. The current forecast period extends through 18/09/2026 at 8:00 PM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.