Weather forecast for 10 days
St. Augustine, FL

Weather forecast for the weekend

Sunday, Jul 20.

Mostly Sunny
6:36 am

8:26 pm
EDT
Mostly Sunny
91°F / 77°F
  • Wind: 11mph S
  • Humidity: 70%
  • Precip. probability: 7%
  • Precipitation: 0"
  • UV index: 11
Tomorrow, sun-filled skies will remain for most of the day.
Temperatures will oscillate between a blazing 91.4°F at their highest and a temperate 77°F at their lowest.
The maximum heat index, which combines air temperature and relative humidity, is computed to be a torridly hot 109.4°F. Note that heat index values are valued for light wind and location in the shade. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
The forecasted peak temperature will reflect the average July high of 90°F.
Sunrise will be at 6:36 am and sunset at 8:26 pm; tomorrow's daylight will last for 13h and 50min.

Frequently asked questions

What is the weather forecast for St. Augustine for the next ten days?
In St. Augustine, predominantly unstable and occasionally bright weather is anticipated for the next ten days.
Will it rain in the next ten days?
Rainfall is predicted nearly every day for the next ten days in St. Augustine. With moderate precipitation of 0.43", Wednesday will be the day with the most rainfall.
How hot will it be in the next ten days?
The maximum temperature will vary between 84.2°F and 91.4°F, while the minimum temperature will be between 75.2°F and 77°F.
Taking the humidity into consideration, the maximum feel-like temperature will vary between 96.8°F and 113°F.
What will be the hottest and the coldest days?
The hottest days will be Sunday, Monday, next Sunday and Monday, with a maximum of 91.4°F. The coldest day will be Wednesday, with a maximum of 84.2°F.

Long-term weather forecast

SatJul 19.
  • min.
  • 75°F
Clear
Clear
  • Wind: 6mph SSW
  • Humidity: 82%
  • UV index: 0
  • Precip. probability: 5%
  • Precipitation: 0"
  • 6:35 am 8:27 pm EDT
SunJul 20.
  • 91°F
  • 77°F
Mostly Sunny
Mostly Sunny
  • Wind: 11mph S
  • Humidity: 70%
  • UV index: 11
  • Precip. probability: 7%
  • Precipitation: 0"
  • 6:36 am 8:26 pm EDT
MonJul 21.
  • 91°F
  • 77°F
PM Thunderstorms
PM Thunderstorms
  • Wind: 9mph WSW
  • Humidity: 73%
  • UV index: 9
  • Precip. probability: 48%
  • Precipitation: 0.2"
  • 6:37 am 8:26 pm EDT
TueJul 22.
  • 90°F
  • 77°F
Scattered Thunderstorms
Scattered Thunderstorms
  • Wind: 9mph SW
  • Humidity: 79%
  • UV index: 11
  • Precip. probability: 58%
  • Precipitation: 0.31"
  • 6:37 am 8:25 pm EDT
WedJul 23.
  • 84°F
  • 75°F
Thunderstorms
Thunderstorms
  • Wind: 12mph ENE
  • Humidity: 85%
  • UV index: 7
  • Precip. probability: 69%
  • Precipitation: 0.43"
  • 6:38 am 8:25 pm EDT
ThuJul 24.
  • 86°F
  • 77°F
Scattered Thunderstorms
Scattered Thunderstorms
  • Wind: 12mph SE
  • Humidity: 79%
  • UV index: 11
  • Precip. probability: 46%
  • Precipitation: 0.16"
  • 6:38 am 8:24 pm EDT
FriJul 25.
  • 88°F
  • 75°F
Scattered Thunderstorms
Scattered Thunderstorms
  • Wind: 12mph SE
  • Humidity: 78%
  • UV index: 11
  • Precip. probability: 42%
  • Precipitation: 0.12"
  • 6:39 am 8:24 pm EDT
SatJul 26.
  • 90°F
  • 77°F
Isolated Thunderstorms
Isolated Thunderstorms
  • Wind: 11mph SSE
  • Humidity: 75%
  • UV index: 11
  • Precip. probability: 32%
  • Precipitation: 0.04"
  • 6:39 am 8:23 pm EDT
SunJul 27.
  • 91°F
  • 77°F
PM Thunderstorms
PM Thunderstorms
  • Wind: 9mph N
  • Humidity: 72%
  • UV index: 11
  • Precip. probability: 39%
  • Precipitation: 0.08"
  • 6:40 am 8:23 pm EDT
MonJul 28.
  • 91°F
  • 77°F
PM Thunderstorms
PM Thunderstorms
  • Wind: 10mph WSW
  • Humidity: 71%
  • UV index: 11
  • Precip. probability: 35%
  • Precipitation: 0.12"
  • 6:41 am 8:22 pm EDT
Primarily thunderstorm-prone and occasionally sun-filled weather is forecasted.
Almost every day for the next ten days, rainfall is anticipated.
In the upcoming days, the highest temperature will vary between 84.2°F and 91.4°F, while changes in the overnight low will be barely noticeable, as the minimum temperature is expected to range between 75.2°F and 77°F.
With a maximum temperature of 91.4°F, Sunday, Monday, next Sunday and Monday will be the hottest days in St. Augustine, Florida; the coldest day will be Wednesday, with a maximum of 84.2°F.
Combining with the humidity, the maximum feel-like temperature may increase vastly and range between a steamy 96.8°F and a searing 113°F.
Among all months, July is the warmest in St. Augustine, showing average highs of 90°F and average lows of 72°F.
Updated: Jul 19, 2025 @ 23:57:07 UTC
Published by: Weather Atlas | About Us
Data Sources | |
Weather Forecasting & Climate
englishespañol中文
Share