St. Louis, MO Hourly Forecast
St. Louis temperature trend - Next 24 hours
The next 24 hours at a glance
- Warmest hour: 3 PM - around 96°
- Coolest hour: 6 AM - around 74°
- Rain risk: low all day (peaks at 12%)
- UV peak: 1 PM at index 10 - sun protection recommended
- Windiest: 10 AM at 11 mph
St. Louis hourly weather - Friday, July 17
In St. Louis, expect a high near 96°F (35°C) around 3 PM and a low of 84°F (29°C) near 11 PM, with no meaningful precipitation risk.
| Time | Conditions | Temp | Feels | Rain | Wind | Humidity | UV | |
|---|---|---|---|---|---|---|---|---|
| 12 PM | Sunny | 91° | 102° | 4% | 8 mph WNW | 60% | 10 | |
| 1 PM | Partly Cloudy | 93° | 100° | 4% | 8 mph WNW | 50% | 10 | |
| 2 PM | Partly Cloudy | 95° | 101° | 3% | 9 mph WNW | 44% | 10 | |
| 3 PM | Partly Cloudy | 96° | 83° | 2% | 9 mph WNW | 38% | 8 | |
| 4 PM | Partly Cloudy | 95° | 99° | 2% | 8 mph WNW | 41% | 5 | |
| 5 PM | Sunny | 96° | 101° | 1% | 7 mph W | 40% | 3 | |
| 6 PM | Sunny | 95° | 84° | 1% | 8 mph W | 38% | 1 | |
| 7 PM | Sunny | 94° | 83° | 1% | 6 mph WNW | 38% | 0 | |
| 8 PM | Sunny | 91° | 93° | 1% | 5 mph WNW | 42% | 0 | |
| 9 PM | Clear | 88° | 90° | 1% | 4 mph WNW | 47% | 0 | |
| 10 PM | Clear | 86° | 88° | 2% | 4 mph WNW | 52% | 0 | |
| 11 PM | Clear | 84° | 87° | 2% | 4 mph W | 55% | 0 |
St. Louis hourly weather - Saturday, July 18
In St. Louis, expect a high near 93°F (34°C) around 4 PM and a low of 74°F (23°C) near 6 AM; precipitation risk peaks at 38% around 9 PM.
| Time | Conditions | Temp | Feels | Rain | Wind | Humidity | UV | |
|---|---|---|---|---|---|---|---|---|
| 12 AM | Clear | 82° | 85° | 4% | 4 mph WSW | 65% | 0 | |
| 1 AM | Clear | 76° | 67° | 11% | 5 mph SW | 84% | 0 | |
| 2 AM | Clear | 76° | 66° | 11% | 6 mph WSW | 83% | 0 | |
| 3 AM | Clear | 75° | 64° | 11% | 6 mph WSW | 84% | 0 | |
| 4 AM | Clear | 74° | 64° | 11% | 6 mph WSW | 85% | 0 | |
| 5 AM | Clear | 74° | 63° | 12% | 6 mph WSW | 85% | 0 | |
| 6 AM | Sunny | 74° | 63° | 12% | 6 mph W | 86% | 0 | |
| 7 AM | Sunny | 75° | 64° | 12% | 6 mph WSW | 85% | 0 | |
| 8 AM | Sunny | 78° | 73° | 10% | 8 mph WSW | 79% | 1 | |
| 9 AM | Sunny | 82° | 86° | 7% | 10 mph W | 72% | 3 | |
| 10 AM | Partly Cloudy | 84° | 88° | 6% | 11 mph W | 66% | 5 | |
| 11 AM | Sunny | 83° | 88° | 7% | 9 mph W | 69% | 8 | |
| 12 PM | Sunny | 88° | 93° | 3% | 10 mph W | 55% | 10 | |
| 1 PM | Sunny | 91° | 96° | 2% | 11 mph W | 49% | 10 | |
| 2 PM | Sunny | 92° | 97° | 2% | 11 mph W | 46% | 10 | |
| 3 PM | Sunny | 93° | 98° | 2% | 11 mph W | 46% | 8 | |
| 4 PM | Sunny | 93° | 100° | 2% | 10 mph W | 47% | 5 | |
| 5 PM | Sunny | 93° | 99° | 3% | 10 mph W | 49% | 3 | |
| 6 PM | Sunny | 91° | 98° | 3% | 10 mph W | 54% | 1 | |
| 7 PM | Patchy rain nearby | 87° | 95° | 36% | 8 mph WNW | 62% | 0 | |
| 8 PM | Partly Cloudy | 84° | 89° | 7% | 7 mph NW | 68% | 0 | |
| 9 PM | Patchy rain nearby | 82° | 86° | 38% | 6 mph NW | 69% | 0 | |
| 10 PM | Clear | 80° | 83° | 7% | 6 mph WNW | 74% | 0 | |
| 11 PM | Clear | 79° | 77° | 8% | 6 mph W | 76% | 0 |
St. Louis hourly weather - Sunday, July 19
In St. Louis, expect a high near 95°F (35°C) around 4 PM and a low of 74°F (24°C) near 6 AM; precipitation risk peaks at 42% around 8 PM.
| Time | Conditions | Temp | Feels | Rain | Wind | Humidity | UV | |
|---|---|---|---|---|---|---|---|---|
| 12 AM | Clear | 78° | 72° | 9% | 6 mph W | 78% | 0 | |
| 1 AM | Clear | 77° | 68° | 9% | 5 mph W | 80% | 0 | |
| 2 AM | Clear | 77° | 66° | 10% | 5 mph W | 82% | 0 | |
| 3 AM | Clear | 76° | 65° | 11% | 6 mph W | 84% | 0 | |
| 4 AM | Clear | 75° | 65° | 12% | 6 mph W | 85% | 0 | |
| 5 AM | Clear | 75° | 65° | 12% | 5 mph W | 86% | 0 | |
| 6 AM | Sunny | 74° | 65° | 13% | 5 mph WNW | 87% | 0 | |
| 7 AM | Sunny | 76° | 67° | 12% | 4 mph WNW | 85% | 0 | |
| 8 AM | Sunny | 80° | 80° | 10% | 5 mph NW | 79% | 1 | |
| 9 AM | Sunny | 83° | 88° | 7% | 4 mph NW | 72% | 3 | |
| 10 AM | Partly Cloudy | 86° | 92° | 6% | 4 mph NW | 66% | 5 | |
| 11 AM | Sunny | 88° | 96° | 4% | 4 mph WNW | 61% | 7 | |
| 12 PM | Sunny | 90° | 99° | 3% | 4 mph WNW | 57% | 9 | |
| 1 PM | Sunny | 92° | 101° | 3% | 4 mph W | 53% | 9 | |
| 2 PM | Patchy rain nearby | 94° | 102° | 17% | 4 mph WNW | 50% | 7 | |
| 3 PM | Sunny | 94° | 103° | 3% | 4 mph NW | 49% | 6 | |
| 4 PM | Partly Cloudy | 95° | 103° | 3% | 4 mph NNW | 48% | 3 | |
| 5 PM | Partly Cloudy | 94° | 103° | 3% | 5 mph NNE | 50% | 2 | |
| 6 PM | Thundery outbreaks in nearby | 90° | 100° | 13% | 7 mph NE | 61% | 0 | |
| 7 PM | Patchy rain nearby | 88° | 99° | 28% | 6 mph ENE | 68% | 0 | |
| 8 PM | Patchy rain nearby | 83° | 92° | 42% | 7 mph E | 79% | 0 | |
| 9 PM | Partly Cloudy | 81° | 87° | 13% | 6 mph ESE | 84% | 0 | |
| 10 PM | Patchy rain nearby | 81° | 86° | 40% | 6 mph ESE | 83% | 0 | |
| 11 PM | Clear | 79° | 76° | 13% | 5 mph SE | 87% | 0 |
Quick answers for the hours ahead
What is the warmest hour in St. Louis today?
Will it rain in St. Louis tonight?
When is the UV index highest in St. Louis today?
St. Louis hour-by-hour: what to expect
Over the next 24 hours in St. Louis, temperatures range from 74°F (23°C) around 6 AM up to 96°F (35°C) near 3 PM - about 8°F (4°C) above the typical July high of 88°F (31°C).
Precipitation chances stay minimal throughout, so plans can skip the umbrella. UV reaches 10 (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. Louis 14-day forecast or the monthly climate averages.