Weather forecast for 10 days
Harbour Island, FL

Weather forecast for the weekend

Saturday, May 10.

Scattered Thunderstorms
6:41 am

8:10 pm
EDT
Scattered Thunderstorms
82°F / 70°F
  • Wind: 9mph S
  • Humidity: 78%
  • Precip. probability: 49%
  • Precipitation: 0.39"
  • UV index: 7
On Saturday, in Harbour Island, expect scattered thunderstorms, which could cause brief interruptions in outdoor plans.
The likelihood of rainfall is low, and light precipitation is anticipated. The day will observe a moderate high of a warm 82.4°F, subtly differing from a low of a delightful 69.8°F.
Sunrise will be at 6:41 am and sunset at 8:10 pm; the daylight will last for 13h and 29min.

Sunday, May 11.

Thunderstorms
6:40 am

8:11 pm
EDT
Thunderstorms
82°F / 70°F
  • Wind: 8mph SSE
  • Humidity: 80%
  • Precip. probability: 65%
  • Precipitation: 0.51"
  • UV index: 9
On Sunday, in Harbour Island, the potential for thunderstorms remains.
With a high probability, moderate precipitation is forecasted. A narrow temperature span is anticipated, from a high of a moderately hot 82.4°F to a low of an agreeable 69.8°F.
Sunrise will be at 6:40 am and sunset at 8:11 pm; the daylight will last for 13h and 31min.

Frequently asked questions

What is the weather forecast for Harbour Island for Saturday?
On Saturday, there will be scattered thunderstorms, which could cause some localized disruption.
Will it rain on Saturday?
Light precipitation of 0.39" is expected on Saturday. The possibility of rainfall is 49%.
What will be the highest temperature on Saturday?
On Saturday, the maximum temperature will be 82.4°F, while the minimum temperature will be 69.8°F.
What is the weather forecast for Harbour Island for Sunday?
On Sunday, in Harbour Island, thunderstorm risks remain elevated.
Will it rain on Sunday?
Moderate precipitation of 0.51" is predicted on Sunday. The possibility of rainfall is 65%.
What will be the highest temperature on Sunday?
On Sunday, the highest temperature will be 82.4°F, while the lowest temperature will be 69.8°F.
What is the weather forecast for Harbour Island for the next ten days?
In Harbour Island, a combination of stormy, gloomy and mostly clear weather is anticipated for the next ten days.
Will it rain in the next ten days?
Rainfall is predicted for Wednesday, Friday through next Monday in Harbour Island. Next Monday, with moderate precipitation of 0.63", will be the day with the most rainfall.
How hot will it be in the next ten days?
The maximum temperature will range between 82.4°F and 91.4°F, while the minimum temperature will range between 69.8°F and 73.4°F.
Combining with the humidity, the maximum feel-like temperature will vary between 89.6°F and 104°F.
What will be the hottest and the coldest days?
Tomorrow will be the hottest day, with a maximum temperature of 91.4°F. The coldest days will be Saturday and Sunday, with a maximum of 82.4°F.

Long-term weather forecast

MonMay 5.
  • min.
  • 70°F
Clear
Clear
  • Wind: 4mph E
  • Humidity: 82%
  • UV index: 0
  • Precip. probability: 5%
  • Precipitation: 0"
  • 6:45 am 8:07 pm EDT
TueMay 6.
  • 91°F
  • 72°F
Mostly Sunny
Mostly Sunny
  • Wind: 8mph SSW
  • Humidity: 62%
  • UV index: 11
  • Precip. probability: 9%
  • Precipitation: 0"
  • 6:44 am 8:08 pm EDT
WedMay 7.
  • 90°F
  • 73°F
Isolated Thunderstorms
Isolated Thunderstorms
  • Wind: 9mph SSW
  • Humidity: 68%
  • UV index: 9
  • Precip. probability: 31%
  • Precipitation: 0.04"
  • 6:43 am 8:08 pm EDT
ThuMay 8.
  • 88°F
  • 72°F
Partly Cloudy
Partly Cloudy
  • Wind: 9mph SSW
  • Humidity: 70%
  • UV index: 11
  • Precip. probability: 24%
  • Precipitation: 0"
  • 6:42 am 8:09 pm EDT
FriMay 9.
  • 86°F
  • 70°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 11mph SSW
  • Humidity: 72%
  • UV index: 9
  • Precip. probability: 23%
  • Precipitation: 0.08"
  • 6:42 am 8:10 pm EDT
SatMay 10.
  • 82°F
  • 70°F
Scattered Thunderstorms
Scattered Thunderstorms
  • Wind: 9mph S
  • Humidity: 78%
  • UV index: 7
  • Precip. probability: 49%
  • Precipitation: 0.39"
  • 6:41 am 8:10 pm EDT
SunMay 11.
  • 82°F
  • 70°F
Thunderstorms
Thunderstorms
  • Wind: 8mph SSE
  • Humidity: 80%
  • UV index: 9
  • Precip. probability: 65%
  • Precipitation: 0.51"
  • 6:40 am 8:11 pm EDT
MonMay 12.
  • 84°F
  • 70°F
Scattered Thunderstorms
Scattered Thunderstorms
  • Wind: 9mph S
  • Humidity: 78%
  • UV index: 9
  • Precip. probability: 67%
  • Precipitation: 0.63"
  • 6:40 am 8:11 pm EDT
TueMay 13.
  • 86°F
  • 70°F
Partly Cloudy
Partly Cloudy
  • Wind: 8mph SW
  • Humidity: 70%
  • UV index: 11
  • Precip. probability: 24%
  • Precipitation: 0"
  • 6:39 am 8:12 pm EDT
WedMay 14.
  • 86°F
  • 70°F
Mostly Sunny
Mostly Sunny
  • Wind: 8mph W
  • Humidity: 67%
  • UV index: 11
  • Precip. probability: 22%
  • Precipitation: 0"
  • 6:39 am 8:13 pm EDT
Looking ahead, conditions suggest a period of turbulent, cloudy and dry and sunny weather is expected.
Rainfall is forecasted for Wednesday, Friday through next Monday.
In the upcoming period, the maximum temperature will vary between 82.4°F and 91.4°F, while the nighttime low will be mostly stable, as the lowest temperatures will remain in the range of 69.8°F to 73.4°F.
Expect the hottest day on Tuesday, with temperatures peaking at 91.4°F; the coldest days will be Saturday and Sunday, with a maximum of 82.4°F.
Combining with the humidity, the maximum feel-like temperature may increase considerably and range between a blazing 89.6°F and a blisteringly hot 104°F.
Updated: May 6, 2025 @ 03:31:26 UTC
Published by: Weather U.S. | About Us
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