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
15th Apr
27

22

2

4
Thursday
16th Apr
28

19

10

7
Friday
17th Apr
31

17

9

7
Saturday
18th Apr
23

11

8

6
Sunday
19th Apr
16

6

13

8

5-day weather forecast updated at 04:00 on Wednesday 15th April 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 15th April 2026

Expect isolated thunderstorms in St Louis, Missouri with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 4 (Moderate) and 2 hours of bright sunshine. There are 2-5 mm of rainfall expected with 66% chance of some rain and a light breeze of 10 kph from the south-west.

27
°C maximum temperature
22
°C minimum temperature
isolated thunderstorms
2
hours of sunshine
4
UV index (Moderate)
66
% chance of some rain
<5
mm of rainfall expected
L
low heat & humidity
10
kph wind from SW

St Louis weather for Thursday 16th April 2026

Expect isolated thunderstorms in St Louis, Missouri with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 7 (High) and 10 hours of bright sunshine. There are 2-5 mm of rainfall expected with 37% chance of some rain and a light breeze of 7 kph from the south-west.

28
°C maximum temperature
19
°C minimum temperature
isolated thunderstorms
10
hours of sunshine
7
UV index (High)
37
% chance of some rain
<5
mm of rainfall expected
L
low heat & humidity
7
kph wind from SW

St Louis weather for Friday 17th April 2026

Expect isolated thunderstorms in St Louis, Missouri with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 9 hours of bright sunshine. There are 0-2 mm of rainfall expected with 29% chance of some rain and a light breeze of 11 kph from the south.

31
°C maximum temperature
17
°C minimum temperature
isolated thunderstorms
9
hours of sunshine
7
UV index (High)
29
% chance of some rain
<2
mm of rainfall expected
M
moderate heat & humidity
11
kph wind from S

St Louis weather for Saturday 18th April 2026

Expect isolated thunderstorms in St Louis, Missouri with a maximum temperature of 23°C, maximum UV of 6 (High) and 8 hours of bright sunshine. There are 10-20 mm of rainfall expected with 67% chance of some rain and a light breeze of 12 kph from the north-west.

23
°C maximum temperature
11
°C minimum temperature
isolated thunderstorms
8
hours of sunshine
6
UV index (High)
67
% chance of some rain
<20
mm of rainfall expected
0
no heat & humidity
12
kph wind from NW

St Louis weather for Sunday 19th April 2026

Expect clear skies in St Louis, Missouri with a maximum temperature of 16°C, maximum UV of 8 (Very High) and 13 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 9 kph from the north-west.