St Louis weather live forecast

Today's maximum temperature in St Louis is expected to be 27°C. Select a day from the live weather forecast for St Louis, Missouri, USA for more weather parameters.

Wednesday
27th May
27

20

7

7
Thursday
28th May
29

20

11

7
Friday
29th May
25

20

1

6
Saturday
30th May
27

18

13

8
Sunday
31st May
25

17

13

8

5-day weather forecast updated at 04:00 on Wednesday 27th May 2026 GMT

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

St Louis weather forecast by day

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

St Louis weather for Wednesday 27th May 2026

Expect isolated thunderstorms in St Louis, Missouri with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 7 (High) and 7 hours of bright sunshine. There are 2-5 mm of rainfall expected with 35% chance of some rain and little or no wind of 1 kph from the north.

27
°C maximum temperature
20
°C minimum temperature
isolated thunderstorms
7
hours of sunshine
7
UV index (High)
35
% chance of some rain
<5
mm of rainfall expected
L
low heat & humidity
1
kph wind from N

St Louis weather for Thursday 28th May 2026

Expect scattered clouds in St Louis, Missouri with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 5 kph from the east.

29
°C maximum temperature
20
°C minimum temperature
scattered clouds
11
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
L
low heat & humidity
5
kph wind from E

St Louis weather for Friday 29th May 2026

Expect broken clouds in St Louis, Missouri with a maximum temperature of 25°C, maximum UV of 6 (High) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 3 kph from the east.

25
°C maximum temperature
20
°C minimum temperature
broken clouds
1
hour of sunshine
6
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
3
kph wind from E

St Louis weather for Saturday 30th May 2026

Expect clear skies in St Louis, Missouri with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 8 (Very High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 5 kph from the east.

27
°C maximum temperature
18
°C minimum temperature
clear skies
13
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
L
low heat & humidity
5
kph wind from E

St Louis weather for Sunday 31st May 2026

Expect scattered clouds in St Louis, Missouri with a maximum temperature of 25°C, maximum UV of 8 (Very High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 5 kph from the east.