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: 10mph SSW
  • Humidity: 70%
  • Precip. probability: 10%
  • Precipitation: 0"
  • UV index: 11
Tomorrow, in St. Augustine, mainly sunny skies with just a few high clouds are anticipated.
The temperature is expected to vary between a maximum of a hot 91.4°F and a minimum of a temperate 77°F.
The maximum heat index, which combines air temperature and relative humidity, is appraised at a blisteringly hot 109.4°F. Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
The temperature for tomorrow is predicted to correspond with the average July peak 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, a combination of predominantly lightning-active and occasionally sunny and dull weather is predicted for the next ten days.
Will it rain in the next ten days?
In St. Augustine, rain is expected almost every day for the next ten days. Tuesday, with moderate precipitation of 0.43", will be the day with the most rainfall.
How hot will it be in the next ten days?
The maximum temperature will range between 84.2°F and 93.2°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 range between 96.8°F and 118.4°F.
What will be the hottest and the coldest days?
Monday will be the hottest day, with a maximum temperature of 93.2°F. The coldest day will be Wednesday, with a maximum of 84.2°F.

Long-term weather forecast

SatJul 19.
  • min.
  • 77°F
Mostly Clear
Mostly Clear
  • Wind: 11mph S
  • Humidity: 82%
  • UV index: 0
  • Precip. probability: 18%
  • Precipitation: 0"
  • 6:35 am 8:27 pm EDT
SunJul 20.
  • 91°F
  • 77°F
Mostly Sunny
Mostly Sunny
  • Wind: 10mph SSW
  • Humidity: 70%
  • UV index: 11
  • Precip. probability: 10%
  • Precipitation: 0"
  • 6:36 am 8:26 pm EDT
MonJul 21.
  • 93°F
  • 77°F
Partly Cloudy
Partly Cloudy
  • Wind: 9mph WSW
  • Humidity: 72%
  • UV index: 10
  • Precip. probability: 24%
  • Precipitation: 0.16"
  • 6:37 am 8:26 pm EDT
TueJul 22.
  • 90°F
  • 77°F
Scattered Thunderstorms
Scattered Thunderstorms
  • Wind: 9mph SW
  • Humidity: 80%
  • UV index: 10
  • Precip. probability: 58%
  • Precipitation: 0.43"
  • 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: 70%
  • Precipitation: 0.39"
  • 6:38 am 8:25 pm EDT
ThuJul 24.
  • 86°F
  • 77°F
Scattered Thunderstorms
Scattered Thunderstorms
  • Wind: 12mph ESE
  • Humidity: 80%
  • UV index: 11
  • Precip. probability: 51%
  • Precipitation: 0.2"
  • 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: 46%
  • Precipitation: 0.12"
  • 6:39 am 8:24 pm EDT
SatJul 26.
  • 90°F
  • 77°F
PM Thunderstorms
PM Thunderstorms
  • Wind: 11mph SSE
  • Humidity: 75%
  • UV index: 11
  • Precip. probability: 36%
  • Precipitation: 0.04"
  • 6:39 am 8:23 pm EDT
SunJul 27.
  • 90°F
  • 77°F
PM Thunderstorms
PM Thunderstorms
  • Wind: 9mph N
  • Humidity: 73%
  • UV index: 11
  • Precip. probability: 40%
  • Precipitation: 0.08"
  • 6:40 am 8:23 pm EDT
MonJul 28.
  • 91°F
  • 77°F
PM Thunderstorms
PM Thunderstorms
  • Wind: 10mph SW
  • Humidity: 71%
  • UV index: 11
  • Precip. probability: 39%
  • Precipitation: 0.16"
  • 6:41 am 8:22 pm EDT
Primarily turbulent and occasionally mostly clear and cloud-filled weather is predicted.
Rain is forecasted nearly every day for the next ten days.
In the coming days, the highest temperature will vary between 84.2°F and 93.2°F, while the nighttime low will be mostly stable, as night temperatures will lie between 75.2°F and 77°F.
With the highest temperature of 93.2°F, Monday will be the hottest day; the coldest day will be Wednesday, with a maximum of 84.2°F.
Including the humidity's impact, the maximum feel-like temperature may increase significantly and range between a steamy 96.8°F and a dangerously hot 118.4°F.
The climate in St. Augustine reaches its peak warmth in July, with highs averaging 90°F and lows dropping to 72°F.
Updated: Jul 19, 2025 @ 20:05:37 UTC
Published by: Weather U.S. | About Us
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Weather Forecasting & Climate
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