St Petersburg weather live forecast

Today's maximum temperature in St Petersburg is expected to be 34°C. Select a day from the live weather forecast for St Petersburg, Florida, USA for more weather parameters.

Wednesday
12th Aug
34

28

10

10
Thursday
13th Aug
33

27

7

10
Friday
14th Aug
34

27

9

10
Saturday
15th Aug
33

27

8

10
Sunday
16th Aug
33

27

9

10

5-day weather forecast updated at 04:01 on Wednesday 12th August 2026 GMT

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

St Petersburg weather forecast by day

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

St Petersburg weather for Wednesday 12th August 2026

Expect scattered clouds in St Petersburg, Florida with a maximum temperature of 34°C, high levels of heat & humidity, maximum UV of 10 (Very High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the north-west.

34
°C maximum temperature
28
°C minimum temperature
scattered clouds
10
hours of sunshine
10
UV index (Very High)
0
mm of rainfall expected
H
high heat & humidity
17
kph wind from NW

St Petersburg weather for Thursday 13th August 2026

Expect scattered clouds in St Petersburg, Florida with a maximum temperature of 33°C, high levels of heat & humidity, maximum UV of 10 (Very High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the north-west.

33
°C maximum temperature
27
°C minimum temperature
scattered clouds
7
hours of sunshine
10
UV index (Very High)
0
mm of rainfall expected
H
high heat & humidity
15
kph wind from NW

St Petersburg weather for Friday 14th August 2026

Expect isolated thunderstorms in St Petersburg, Florida with a maximum temperature of 34°C, high levels of heat & humidity, maximum UV of 10 (Very High) and 9 hours of bright sunshine. There are 0-2 mm of rainfall expected with 47% chance of some rain and a light breeze of 10 kph from the north.

34
°C maximum temperature
27
°C minimum temperature
isolated thunderstorms
9
hours of sunshine
10
UV index (Very High)
47
% chance of some rain
<2
mm of rainfall expected
H
high heat & humidity
10
kph wind from N

St Petersburg weather for Saturday 15th August 2026

Expect isolated thunderstorms in St Petersburg, Florida with a maximum temperature of 33°C, high levels of heat & humidity, maximum UV of 10 (Very High) and 8 hours of bright sunshine. There are 0-2 mm of rainfall expected with 47% chance of some rain and a light breeze of 10 kph from the west.

33
°C maximum temperature
27
°C minimum temperature
isolated thunderstorms
8
hours of sunshine
10
UV index (Very High)
47
% chance of some rain
<2
mm of rainfall expected
H
high heat & humidity
10
kph wind from W

St Petersburg weather for Sunday 16th August 2026

Expect isolated thunderstorms in St Petersburg, Florida with a maximum temperature of 33°C, high levels of heat & humidity, maximum UV of 10 (Very High) and 9 hours of bright sunshine. There are 0-2 mm of rainfall expected with 41% chance of some rain and a gentle breeze of 13 kph from the north-west.