St. Petersburg, FL Hourly Forecast
St. Petersburg temperature trend - Next 24 hours
The next 24 hours at a glance
- Warmest hour: 5 PM - around 90°
- Coolest hour: 6 AM - around 81°
- Highest rain chance: 6 PM (70%) - pack accordingly
- UV peak: 1 PM at index 8 - sun protection recommended
- Windiest: 10 AM at 20 mph
St. Petersburg hourly weather - Tuesday, September 15
In St. Petersburg, expect a high near 87°F (30°C) around 7 PM and a low of 84°F (29°C) near 11 PM; precipitation risk peaks at 70% around 6 PM.
| Time | Conditions | Temp | Feels | Rain | Wind | Humidity | UV | |
|---|---|---|---|---|---|---|---|---|
| 6 PM | Moderate or heavy rain shower | 86° | 94° | 70% | 11 mph ESE | 66% | 1 | |
| 7 PM | Light rain shower | 87° | 95° | 61% | 12 mph E | 66% | 0 | |
| 8 PM | Light rain shower | 87° | 96° | 48% | 15 mph E | 68% | 0 | |
| 9 PM | Light rain shower | 85° | 93° | 36% | 16 mph E | 70% | 0 | |
| 10 PM | Patchy rain nearby | 85° | 92° | 52% | 19 mph E | 72% | 0 | |
| 11 PM | Moderate rain at times | 84° | 91° | 48% | 18 mph E | 74% | 0 |
St. Petersburg hourly weather - Wednesday, September 16
In St. Petersburg, expect a high near 90°F (32°C) around 6 PM and a low of 81°F (27°C) near 6 AM; precipitation risk peaks at 42% around 1 AM.
| Time | Conditions | Temp | Feels | Rain | Wind | Humidity | UV | |
|---|---|---|---|---|---|---|---|---|
| 12 AM | Clear | 83° | 91° | 7% | 18 mph E | 76% | 0 | |
| 1 AM | Patchy rain nearby | 83° | 90° | 42% | 18 mph E | 77% | 0 | |
| 2 AM | Clear | 82° | 90° | 8% | 17 mph E | 78% | 0 | |
| 3 AM | Clear | 82° | 89° | 8% | 17 mph ENE | 78% | 0 | |
| 4 AM | Patchy rain nearby | 82° | 88° | 20% | 17 mph ENE | 80% | 0 | |
| 5 AM | Thundery outbreaks in nearby | 82° | 88° | 26% | 17 mph ENE | 80% | 0 | |
| 6 AM | Thundery outbreaks in nearby | 81° | 87° | 29% | 18 mph ENE | 82% | 0 | |
| 7 AM | Light rain shower | 81° | 87° | 36% | 19 mph ENE | 81% | 0 | |
| 8 AM | Patchy rain nearby | 81° | 87° | 26% | 19 mph ENE | 81% | 0 | |
| 9 AM | Patchy rain nearby | 82° | 88° | 41% | 20 mph ENE | 79% | 1 | |
| 10 AM | Cloudy | 83° | 89° | 16% | 20 mph ENE | 75% | 3 | |
| 11 AM | Patchy rain nearby | 84° | 91° | 21% | 19 mph ENE | 70% | 5 | |
| 12 PM | Patchy rain nearby | 86° | 93° | 11% | 20 mph ENE | 65% | 7 | |
| 1 PM | Patchy rain nearby | 88° | 95° | 20% | 18 mph ENE | 62% | 8 | |
| 2 PM | Patchy rain nearby | 88° | 96° | 20% | 17 mph ENE | 62% | 8 | |
| 3 PM | Patchy rain nearby | 89° | 96° | 14% | 18 mph ENE | 58% | 6 | |
| 4 PM | Overcast | 90° | 96° | 13% | 16 mph E | 56% | 5 | |
| 5 PM | Patchy rain nearby | 90° | 96° | 7% | 14 mph E | 53% | 3 | |
| 6 PM | Patchy rain nearby | 90° | 95° | 9% | 17 mph ENE | 50% | 1 | |
| 7 PM | Partly Cloudy | 89° | 92° | 4% | 21 mph NE | 51% | 0 | |
| 8 PM | Clear | 86° | 89° | 2% | 23 mph NE | 53% | 0 | |
| 9 PM | Clear | 85° | 87° | 2% | 22 mph ENE | 53% | 0 | |
| 10 PM | Clear | 83° | 86° | 3% | 22 mph ENE | 59% | 0 | |
| 11 PM | Clear | 82° | 85° | 4% | 21 mph ENE | 64% | 0 |
St. Petersburg hourly weather - Thursday, September 17
In St. Petersburg, expect a high near 90°F (32°C) around 3 PM and a low of 79°F (26°C) near 8 AM; precipitation risk peaks at 22% around 7 AM.
| Time | Conditions | Temp | Feels | Rain | Wind | Humidity | UV | |
|---|---|---|---|---|---|---|---|---|
| 12 AM | Clear | 81° | 85° | 5% | 19 mph ENE | 68% | 0 | |
| 1 AM | Partly Cloudy | 81° | 85° | 9% | 18 mph ENE | 70% | 0 | |
| 2 AM | Clear | 80° | 84° | 8% | 18 mph ENE | 73% | 0 | |
| 3 AM | Partly Cloudy | 80° | 84° | 9% | 17 mph ENE | 74% | 0 | |
| 4 AM | Overcast | 80° | 82° | 21% | 17 mph ENE | 76% | 0 | |
| 5 AM | Overcast | 80° | 83° | 21% | 17 mph ENE | 76% | 0 | |
| 6 AM | Overcast | 80° | 82° | 21% | 17 mph ENE | 77% | 0 | |
| 7 AM | Overcast | 79° | 81° | 22% | 17 mph ENE | 78% | 0 | |
| 8 AM | Overcast | 79° | 81° | 22% | 18 mph ENE | 78% | 0 | |
| 9 AM | Cloudy | 80° | 82° | 16% | 19 mph ENE | 76% | 1 | |
| 10 AM | Sunny | 81° | 86° | 6% | 18 mph ENE | 72% | 3 | |
| 11 AM | Sunny | 83° | 87° | 5% | 19 mph ENE | 67% | 5 | |
| 12 PM | Sunny | 85° | 90° | 4% | 18 mph ENE | 61% | 8 | |
| 1 PM | Sunny | 87° | 91° | 3% | 18 mph ENE | 55% | 9 | |
| 2 PM | Sunny | 88° | 93° | 2% | 16 mph ENE | 54% | 10 | |
| 3 PM | Sunny | 90° | 94° | 2% | 14 mph ENE | 52% | 8 | |
| 4 PM | Partly Cloudy | 90° | 95° | 3% | 18 mph ENE | 52% | 5 | |
| 5 PM | Sunny | 87° | 93° | 4% | 25 mph NE | 59% | 2 | |
| 6 PM | Sunny | 86° | 91° | 4% | 24 mph ENE | 60% | 1 | |
| 7 PM | Sunny | 85° | 90° | 4% | 24 mph ENE | 61% | 0 | |
| 8 PM | Clear | 84° | 88° | 4% | 24 mph ENE | 63% | 0 | |
| 9 PM | Clear | 83° | 87° | 4% | 23 mph ENE | 65% | 0 | |
| 10 PM | Clear | 82° | 86° | 5% | 23 mph ENE | 68% | 0 | |
| 11 PM | Clear | 81° | 85° | 6% | 21 mph ENE | 70% | 0 |
Quick answers for the hours ahead
What is the warmest hour in St. Petersburg today?
Will it rain in St. Petersburg tonight?
When is the UV index highest in St. Petersburg today?
St. Petersburg hour-by-hour: what to expect
Over the next 24 hours in St. Petersburg, temperatures range from 81°F (27°C) around 6 AM up to 90°F (32°C) near 5 PM - about 4°F (2°C) above the typical September high of 86°F (30°C).
Precipitation is a real possibility: the chance of rain peaks at 70% around 6 PM. Wind picks up to 20 mph (32 km/h) from the ENE near 10 AM. UV reaches 8 (1 PM) - sun protection recommended through midday.
The “feels like” column blends humidity and wind into an apparent temperature - see how it works in our feels-like temperature guide. Planning further ahead? Check the St. Petersburg 14-day forecast or the monthly climate averages.