St George weather live forecast

Today's maximum temperature in St George is expected to be 37°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 Friday 15th 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 Friday 15th August 2025

Expect isolated thunderstorms in St George, Utah with a maximum temperature of 37°C, high levels of heat & humidity, maximum UV of 9 (Very High) and 10 hours of bright sunshine. There are 2-5 mm of rainfall expected with 12% chance of some rain and a moderate breeze of 26 kph from the south-west.

  • 37°C maximum temperature37
    °C maximum temperature
  • 25°C minimum temperature25
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 10 hours of bright sunshine10
    hours of sunshine
  • UV (maximum) index 9 (Very High)9
    UV index (Very High)
  • 12% chance of some rain12
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • High heat & humidityH
    high heat & humidity
  • Moderate breeze of 26 kph from the South-West26
    kph wind from SW

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St George weather for Saturday 16th August 2025

Expect scattered clouds in St George, Utah with a maximum temperature of 36°C, high levels of heat & humidity, maximum UV of 8 (Very High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 19 kph from the south-west.

  • 36°C maximum temperature36
    °C maximum temperature
  • 25°C minimum temperature25
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 10 hours of bright sunshine10
    hours of sunshine
  • UV (maximum) index 8 (Very High)8
    UV index (Very High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • High heat & humidityH
    high heat & humidity
  • Gentle breeze of 19 kph from the South-West19
    kph wind from SW

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St George weather for Sunday 17th August 2025

Expect scattered clouds in St George, Utah with a maximum temperature of 37°C, high levels of heat & humidity, maximum UV of 10 (Very High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 19 kph from the west.

  • 37°C maximum temperature37
    °C maximum temperature
  • 24°C minimum temperature24
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 12 hours of bright sunshine12
    hours of sunshine
  • UV (maximum) index 10 (Very High)10
    UV index (Very High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • High heat & humidityH
    high heat & humidity
  • Gentle breeze of 19 kph from the West19
    kph wind from W

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St George weather for Monday 18th August 2025

Expect clear skies in St George, Utah with a maximum temperature of 38°C, high levels of heat & humidity, maximum UV of 10 (Very High) and 14 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the west.

  • 38°C maximum temperature38
    °C maximum temperature
  • 23°C minimum temperature23
    °C minimum temperature
  • Clear skies
    clear skies
  • 14 hours of bright sunshine14
    hours of sunshine
  • UV (maximum) index 10 (Very High)10
    UV index (Very High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • High heat & humidityH
    high heat & humidity
  • Gentle breeze of 17 kph from the West17
    kph wind from W

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St George weather for Tuesday 19th August 2025

Expect broken 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 5 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 20 kph from the west.

  • 40°C maximum temperature40
    °C maximum temperature
  • 24°C minimum temperature24
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 5 hours of bright sunshine5
    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 20 kph from the West20
    kph wind from W

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

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