St George weather live forecast

Today's maximum temperature in St George is expected to be 40°C. Select a day from the live weather forecast for St George, Utah, USA for more weather parameters.

5-day weather forecast updated at 04:01 on Tuesday 19th August 2025 GMT

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The 5-day weather forecast for Utah (St George) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

St George weather forecast by day

Below are the detailed weather forecasts for St George for the next 5 days.

St George weather for Tuesday 19th August 2025

Expect scattered clouds in St George, Utah with a maximum temperature of 40°C, very high levels of heat & humidity, maximum UV of 10 (Very High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 21 kph from the west.

  • 40°C maximum temperature40
    °C maximum temperature
  • 25°C minimum temperature25
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 10 (Very High)10
    UV index (Very High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Very high heat & humidityVH
    very high heat & humidity
  • Moderate breeze of 21 kph from the West21
    kph wind from W

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St George weather for Wednesday 20th August 2025

Expect scattered clouds in St George, Utah with a maximum temperature of 41°C, very high levels of heat & humidity, maximum UV of 9 (Very High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 19 kph from the west.

  • 41°C maximum temperature41
    °C maximum temperature
  • 28°C minimum temperature28
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 9 hours of bright sunshine9
    hours of sunshine
  • UV (maximum) index 9 (Very High)9
    UV index (Very High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Very high heat & humidityVH
    very high heat & humidity
  • Gentle breeze of 19 kph from the West19
    kph wind from W

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St George weather for Thursday 21st August 2025

Expect scattered clouds in St George, Utah with a maximum temperature of 42°C, very high levels of heat & humidity, maximum UV of 9 (Very High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 19 kph from the west.

  • 42°C maximum temperature42
    °C maximum temperature
  • 28°C minimum temperature28
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 8 hours of bright sunshine8
    hours of sunshine
  • UV (maximum) index 9 (Very High)9
    UV index (Very High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Very high heat & humidityVH
    very high heat & humidity
  • Gentle breeze of 19 kph from the West19
    kph wind from W

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St George weather for Friday 22nd August 2025

Expect isolated thunderstorms in St George, Utah with a maximum temperature of 42°C, very high levels of heat & humidity, maximum UV of 9 (Very High) and 7 hours of bright sunshine. There are 0-2 mm of rainfall expected with 9% chance of some rain and a moderate breeze of 20 kph from the south-west.

  • 42°C maximum temperature42
    °C maximum temperature
  • 29°C minimum temperature29
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 9 (Very High)9
    UV index (Very High)
  • 9% chance of some rain9
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • Very high heat & humidityVH
    very high heat & humidity
  • Moderate breeze of 20 kph from the South-West20
    kph wind from SW

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St George weather for Saturday 23rd August 2025

Expect scattered clouds in St George, Utah with a maximum temperature of 40°C, very high levels of heat & humidity, maximum UV of 8 (Very High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the west.

  • 40°C maximum temperature40
    °C maximum temperature
  • 29°C minimum temperature29
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 9 hours of bright sunshine9
    hours of sunshine
  • UV (maximum) index 8 (Very High)8
    UV index (Very High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Very high heat & humidityVH
    very high heat & humidity
  • Gentle breeze of 17 kph from the West17
    kph wind from W

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Metric (°C / mm)  |  Imperial (°F / inches)

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