Key West, FL Hourly Forecast
Key West temperature trend - Next 24 hours
The next 24 hours at a glance
- Warmest hour: 10 AM - around 87°
- Coolest hour: 4 AM - around 86°
- Highest rain chance: 8 AM (61%) - pack accordingly
- UV peak: 2 PM at index 10 - sun protection recommended
- Windiest: 2 AM at 19 mph
Key West hourly weather - Tuesday, September 15
In Key West, expect a high near 86°F (30°C) around 8 PM and a low of 86°F (30°C) near 6 PM; precipitation risk peaks at 24% around 7 PM.
| Time | Conditions | Temp | Feels | Rain | Wind | Humidity | UV | |
|---|---|---|---|---|---|---|---|---|
| 6 PM | Sunny | 86° | 95° | 6% | 13 mph E | 72% | 1 | |
| 7 PM | Patchy rain nearby | 86° | 96° | 24% | 13 mph E | 70% | 0 | |
| 8 PM | Clear | 86° | 95° | 5% | 14 mph E | 68% | 0 | |
| 9 PM | Cloudy | 86° | 95° | 14% | 16 mph ENE | 70% | 0 | |
| 10 PM | Clear | 86° | 95° | 8% | 17 mph ENE | 72% | 0 | |
| 11 PM | Clear | 86° | 96° | 6% | 18 mph E | 70% | 0 |
Key West hourly weather - Wednesday, September 16
In Key West, expect a high near 87°F (30°C) around 10 AM and a low of 86°F (30°C) near 4 AM; precipitation risk peaks at 61% around 8 AM.
| Time | Conditions | Temp | Feels | Rain | Wind | Humidity | UV | |
|---|---|---|---|---|---|---|---|---|
| 12 AM | Patchy rain nearby | 86° | 95° | 15% | 18 mph E | 70% | 0 | |
| 1 AM | Patchy rain nearby | 86° | 95° | 18% | 18 mph E | 70% | 0 | |
| 2 AM | Patchy rain nearby | 86° | 95° | 15% | 19 mph E | 71% | 0 | |
| 3 AM | Patchy rain nearby | 86° | 95° | 17% | 17 mph E | 71% | 0 | |
| 4 AM | Patchy rain nearby | 86° | 94° | 16% | 17 mph E | 71% | 0 | |
| 5 AM | Patchy rain nearby | 86° | 94° | 13% | 17 mph E | 70% | 0 | |
| 6 AM | Patchy rain nearby | 86° | 94° | 19% | 17 mph E | 68% | 0 | |
| 7 AM | Patchy rain nearby | 86° | 94° | 21% | 16 mph E | 70% | 0 | |
| 8 AM | Light rain shower | 86° | 93° | 61% | 16 mph E | 69% | 0 | |
| 9 AM | Light rain shower | 86° | 94° | 27% | 16 mph E | 66% | 0 | |
| 10 AM | Patchy rain nearby | 87° | 94° | 17% | 17 mph E | 64% | 2 | |
| 11 AM | Patchy rain nearby | 86° | 94° | 22% | 17 mph E | 66% | 4 | |
| 12 PM | Patchy rain nearby | 86° | 94° | 17% | 16 mph ENE | 68% | 7 | |
| 1 PM | Patchy rain nearby | 86° | 94° | 19% | 16 mph ENE | 68% | 10 | |
| 2 PM | Patchy rain nearby | 86° | 94° | 20% | 17 mph ENE | 68% | 10 | |
| 3 PM | Patchy rain nearby | 86° | 95° | 13% | 17 mph ENE | 71% | 8 | |
| 4 PM | Sunny | 86° | 94° | 6% | 17 mph ENE | 70% | 6 | |
| 5 PM | Sunny | 86° | 94° | 6% | 17 mph E | 70% | 3 | |
| 6 PM | Sunny | 86° | 94° | 6% | 17 mph E | 69% | 1 | |
| 7 PM | Sunny | 86° | 95° | 6% | 17 mph E | 70% | 0 | |
| 8 PM | Cloudy | 86° | 95° | 11% | 18 mph ENE | 71% | 0 | |
| 9 PM | Overcast | 86° | 95° | 16% | 18 mph ENE | 70% | 0 | |
| 10 PM | Patchy rain nearby | 86° | 95° | 14% | 18 mph E | 70% | 0 | |
| 11 PM | Patchy rain nearby | 86° | 95° | 20% | 17 mph E | 69% | 0 |
Key West hourly weather - Thursday, September 17
In Key West, expect a high near 86°F (30°C) around 12 AM and a low of 84°F (29°C) near 6 AM; precipitation risk peaks at 63% around 2 PM.
| Time | Conditions | Temp | Feels | Rain | Wind | Humidity | UV | |
|---|---|---|---|---|---|---|---|---|
| 12 AM | Patchy rain nearby | 86° | 95° | 19% | 18 mph E | 70% | 0 | |
| 1 AM | Patchy rain nearby | 86° | 94° | 40% | 19 mph E | 71% | 0 | |
| 2 AM | Patchy rain nearby | 85° | 93° | 28% | 17 mph E | 72% | 0 | |
| 3 AM | Moderate rain at times | 85° | 92° | 43% | 17 mph E | 72% | 0 | |
| 4 AM | Clear | 84° | 92° | 6% | 17 mph E | 72% | 0 | |
| 5 AM | Clear | 84° | 92° | 6% | 15 mph ENE | 71% | 0 | |
| 6 AM | Patchy rain nearby | 84° | 92° | 36% | 15 mph ENE | 72% | 0 | |
| 7 AM | Clear | 85° | 93° | 6% | 15 mph E | 70% | 0 | |
| 8 AM | Patchy rain nearby | 85° | 92° | 14% | 15 mph E | 70% | 0 | |
| 9 AM | Patchy rain nearby | 85° | 93° | 19% | 15 mph E | 71% | 1 | |
| 10 AM | Patchy rain nearby | 85° | 93° | 32% | 15 mph E | 71% | 3 | |
| 11 AM | Patchy rain nearby | 85° | 93° | 17% | 15 mph E | 72% | 6 | |
| 12 PM | Patchy rain nearby | 85° | 93° | 30% | 13 mph E | 72% | 8 | |
| 1 PM | Patchy rain nearby | 85° | 93° | 37% | 13 mph E | 72% | 10 | |
| 2 PM | Patchy rain nearby | 85° | 93° | 63% | 12 mph E | 72% | 10 | |
| 3 PM | Light rain shower | 85° | 93° | 46% | 12 mph E | 72% | 8 | |
| 4 PM | Overcast | 85° | 92° | 18% | 13 mph E | 72% | 5 | |
| 5 PM | Patchy rain nearby | 84° | 92° | 25% | 13 mph ENE | 72% | 3 | |
| 6 PM | Light rain shower | 85° | 93° | 60% | 14 mph ENE | 71% | 1 | |
| 7 PM | Partly Cloudy | 85° | 94° | 10% | 16 mph ENE | 72% | 0 | |
| 8 PM | Clear | 86° | 94° | 6% | 17 mph E | 71% | 0 | |
| 9 PM | Clear | 85° | 94° | 6% | 18 mph ENE | 71% | 0 | |
| 10 PM | Partly Cloudy | 85° | 94° | 9% | 18 mph E | 70% | 0 | |
| 11 PM | Patchy rain nearby | 85° | 94° | 18% | 19 mph E | 71% | 0 |
Quick answers for the hours ahead
What is the warmest hour in Key West today?
Will it rain in Key West tonight?
When is the UV index highest in Key West today?
Key West hour-by-hour: what to expect
Over the next 24 hours in Key West, temperatures range from 86°F (30°C) around 4 AM up to 87°F (30°C) near 10 AM - right in line with the typical September high of 85°F (29°C).
Precipitation is a real possibility: the chance of rain peaks at 61% around 8 AM. Wind picks up to 19 mph (30 km/h) from the E near 2 AM. UV reaches 10 (2 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 Key West 14-day forecast or the monthly climate averages.