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.

Monday
20th Jul
40

28

11

11
Tuesday
21st Jul
39

29

6

10
Wednesday
22nd Jul
40

28

10

11
Thursday
23rd Jul
41

29

11

11
Friday
24th Jul
41

31

8

8

5-day weather forecast updated at 04:01 on Monday 20th July 2026 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 Monday 20th July 2026

Expect scattered clouds in St George, Utah with a maximum temperature of 40°C, very high levels of heat & humidity, maximum UV of 11 (Extreme) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the south-west.

40
°C maximum temperature
28
°C minimum temperature
scattered clouds
11
hours of sunshine
11
UV index (Extreme)
0
mm of rainfall expected
VH
very high heat & humidity
12
kph wind from SW

St George weather for Tuesday 21st July 2026

Expect isolated thunderstorms in St George, Utah with a maximum temperature of 39°C, very high levels of heat & humidity, maximum UV of 10 (Very High) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 20% chance of some rain and a light breeze of 9 kph from the south-west.

39
°C maximum temperature
29
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
10
UV index (Very High)
20
% chance of some rain
<2
mm of rainfall expected
VH
very high heat & humidity
9
kph wind from SW

St George weather for Wednesday 22nd July 2026

Expect scattered clouds in St George, Utah with a maximum temperature of 40°C, very high levels of heat & humidity, maximum UV of 11 (Extreme) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 9 kph from the south-west.

40
°C maximum temperature
28
°C minimum temperature
scattered clouds
10
hours of sunshine
11
UV index (Extreme)
0
mm of rainfall expected
VH
very high heat & humidity
9
kph wind from SW

St George weather for Thursday 23rd July 2026

Expect scattered clouds in St George, Utah with a maximum temperature of 41°C, very high levels of heat & humidity, maximum UV of 11 (Extreme) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 kph from the south-west.

41
°C maximum temperature
29
°C minimum temperature
scattered clouds
11
hours of sunshine
11
UV index (Extreme)
0
mm of rainfall expected
VH
very high heat & humidity
7
kph wind from SW

St George weather for Friday 24th July 2026

Expect isolated thunderstorms in St George, Utah with a maximum temperature of 41°C, very high levels of heat & humidity, maximum UV of 8 (Very High) and 8 hours of bright sunshine. There are 0-2 mm of rainfall expected with 26% chance of some rain and a light breeze of 8 kph from the south-west.