Hawaii weather outlook for the next 7 days
From Oct 29 to Nov 4, temperatures in Hawaii will range from 69° to 82°. The hottest day is Saturday, Oct 31, with a high of 82°; the coolest night is Monday, Nov 2, dipping to around 69°. Overall, daytime temperatures are expected to ease slightly towards the end of the period.
3 of the next 7 days are forecast to bring 0.04 in of rain or more: today (Oct 29) (~0.16 in), Sunday, Nov 1 (~0.12 in) and Wednesday, Nov 4 (~0.06 in). The wettest day is today (Oct 29), with around 0.16 in of rain.
The windiest day is Wednesday, Nov 4, with average speeds of about 16 mph and gusts of up to 25 mph. The UV index peaks at 7 (high) on Monday, Nov 2. Average daily humidity ranges from 57% to 87%.
- Rainy days ahead: carry an umbrella or raincoat, slow down on wet roads and never drive through flooded roads – turn around, don't drown.
Frequently asked questions about the weather in Hawaii
Will it rain in Hawaii in the next 24 hours?
Yes. Over the next 24 hours, rain is likely in Hawaii around 1 AM–12 PM, with the highest chance (about 100%) at 2:00 AM. Total rainfall is forecast at around 0.16 in.
What is the weather in Hawaii tomorrow?
Tomorrow (Friday, Oct 30), Hawaii will see overcast clouds, with temperatures from 72° to 78°, a 8% chance of rain, humidity around 78% and winds of 7 mph. Good weather for getting around.
Which day will be hottest in Hawaii this week?
According to the forecast, Saturday, Oct 31 will be the hottest day, with a high of about 82°. The coolest is Monday, Nov 2, with a low of about 69°.
Which day is best for going out or outdoor activities in Hawaii?
Saturday, Oct 31 is the best day of the next 7: overcast clouds, 71° to 82°, with a 0% chance of rain. Go in the morning or late afternoon to avoid the strongest sun.
Is this forecast accurate for every part of Hawaii?
The forecast is calculated for a representative point in Hawaii. In mountain and coastal areas, or during showers and thunderstorms, conditions can vary a lot from place to place. For tornadoes, hurricanes, floods and winter storms, always follow the official National Weather Service warnings.
Day by day in Hawaii
| Day | Weather | High / Low | Rain | Wind | Heat index / wind chill |
|---|---|---|---|---|---|
| Today |  Light rain |
77° / 73° | 100% · 0.16 in | 7 mph | 79° · Not hazardous |
| Tomorrow |  Overcast clouds |
78° / 72° | 8% · 0 in | 7 mph | 79° · Not hazardous |
| Sat, Oct 31 | Overcast clouds |
82° / 71° | 0% · 0 in | 5 mph | 84° · Caution |
| Sun, Nov 1 | Light rain |
77° / 71° | 48% · 0.12 in | 12 mph | 78° · Not hazardous |
| Mon, Nov 2 | Light rain |
75° / 69° | 20% · <0.01 in | 14 mph | 75° · Not hazardous |
| Tue, Nov 3 | Light rain |
76° / 70° | 40% · 0.04 in | 15 mph | 76° · Not hazardous |
| Wed, Nov 4 | Light rain |
77° / 70° | 40% · 0.06 in | 16 mph | 77° · Not hazardous |
About the heat index and wind chill
The heat index is how hot it really feels when humidity is combined with the air temperature. The National Weather Service uses these levels: 80–90 °F caution, 90–103 °F extreme caution, 103–124 °F danger and 125 °F or more extreme danger. At "danger" level, heat cramps and heat exhaustion are likely with prolonged activity outdoors — drink water often, rest in the shade or air conditioning and avoid strenuous work in the afternoon.
The wind chill is how cold it feels on exposed skin when wind is combined with cold air (it applies at 50 °F and below). At a wind chill of −18 °F frostbite can develop in 30 minutes, at −35 °F in 10 minutes: cover your skin, wear layers, a hat and gloves.