St George weather live forecast

Today's maximum temperature in St George is expected to be 39°C. Select a day from the live weather forecast for St George, Utah, USA for more weather parameters.

Thursday
10th Sep
39

23

12

9
Friday
11th Sep
38

26

9

9
Saturday
12th Sep
37

26

10

9
Sunday
13th Sep
35

25

9

8
Monday
14th Sep
34

23

7

9

5-day weather forecast updated at 04:01 on Thursday 10th September 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 Thursday 10th September 2026

Expect clear skies in St George, Utah with a maximum temperature of 39°C, very high levels of heat & humidity, maximum UV of 9 (Very High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the north-east.

39
°C maximum temperature
23
°C minimum temperature
clear skies
12
hours of sunshine
9
UV index (Very High)
0
mm of rainfall expected
VH
very high heat & humidity
11
kph wind from NE

St George weather for Friday 11th September 2026

Expect scattered clouds in St George, Utah with a maximum temperature of 38°C, 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 18 kph from the south-west.

38
°C maximum temperature
26
°C minimum temperature
scattered clouds
9
hours of sunshine
9
UV index (Very High)
0
mm of rainfall expected
H
high heat & humidity
18
kph wind from SW

St George weather for Saturday 12th September 2026

Expect scattered clouds 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 0 mm of rainfall expected and a moderate breeze of 20 kph from the south-west.

37
°C maximum temperature
26
°C minimum temperature
scattered clouds
10
hours of sunshine
9
UV index (Very High)
0
mm of rainfall expected
H
high heat & humidity
20
kph wind from SW

St George weather for Sunday 13th September 2026

Expect scattered clouds in St George, Utah with a maximum temperature of 35°C, 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 moderate breeze of 21 kph from the south-west.

35
°C maximum temperature
25
°C minimum temperature
scattered clouds
9
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
H
high heat & humidity
21
kph wind from SW

St George weather for Monday 14th September 2026

Expect broken clouds in St George, Utah with a maximum temperature of 34°C, high levels of heat & humidity, maximum UV of 9 (Very High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the south-west.