Boulder, CO Hourly Forecast
Boulder temperature trend - Next 24 hours
The next 24 hours at a glance
- Warmest hour: 2 PM - around 82°
- Coolest hour: 6 AM - around 55°
- Highest rain chance: 4 PM (70%) - pack accordingly
- UV peak: 12 PM at index 8 - sun protection recommended
- Windiest: 4 PM at 12 mph
Boulder hourly weather - Thursday, August 13
In Boulder, expect a high near 82°F (28°C) around 2 PM and a low of 55°F (13°C) near 6 AM; precipitation risk peaks at 70% around 4 PM.
| Time | Conditions | Temp | Feels | Rain | Wind | Humidity | UV | |
|---|---|---|---|---|---|---|---|---|
| 5 AM | Clear | 56° | 52° | 5% | 5 mph W | 65% | 0 | |
| 6 AM | Clear | 55° | 53° | 6% | 4 mph WNW | 67% | 0 | |
| 7 AM | Sunny | 62° | 60° | 5% | 3 mph NW | 66% | 0 | |
| 8 AM | Sunny | 66° | 66° | 5% | 3 mph NNE | 66% | 1 | |
| 9 AM | Sunny | 69° | 68° | 5% | 3 mph ENE | 64% | 2 | |
| 10 AM | Patchy rain nearby | 72° | 71° | 13% | 5 mph E | 57% | 4 | |
| 11 AM | Patchy rain nearby | 75° | 73° | 9% | 6 mph E | 51% | 6 | |
| 12 PM | Patchy rain nearby | 78° | 76° | 10% | 8 mph ESE | 45% | 8 | |
| 1 PM | Patchy rain nearby | 81° | 77° | 17% | 8 mph ESE | 40% | 8 | |
| 2 PM | Patchy rain nearby | 82° | 79° | 17% | 8 mph E | 37% | 2 | |
| 3 PM | Patchy light rain | 80° | 80° | 57% | 10 mph S | 42% | 2 | |
| 4 PM | Moderate rain at times | 65° | 60° | 70% | 12 mph NW | 79% | 1 | |
| 5 PM | Light rain shower | 66° | 69° | 59% | 1 mph ESE | 80% | 2 | |
| 6 PM | Patchy light drizzle | 64° | 65° | 37% | 3 mph NNW | 87% | 0 | |
| 7 PM | Patchy rain nearby | 65° | 66° | 36% | 2 mph ESE | 79% | 0 | |
| 8 PM | Patchy light rain | 59° | 60° | 58% | 2 mph SSE | 88% | 0 | |
| 9 PM | Patchy rain nearby | 64° | 64° | 24% | 5 mph SW | 88% | 0 | |
| 10 PM | Patchy rain nearby | 59° | 58° | 28% | 4 mph WSW | 85% | 0 | |
| 11 PM | Patchy rain nearby | 61° | 59° | 18% | 6 mph WNW | 76% | 0 |
Boulder hourly weather - Friday, August 14
In Boulder, expect a high near 85°F (30°C) around 1 PM and a low of 56°F (13°C) near 4 AM; precipitation risk peaks at 82% around 8 PM.
| Time | Conditions | Temp | Feels | Rain | Wind | Humidity | UV | |
|---|---|---|---|---|---|---|---|---|
| 12 AM | Patchy rain nearby | 60° | 57° | 23% | 5 mph W | 74% | 0 | |
| 1 AM | Patchy rain nearby | 62° | 61° | 27% | 5 mph NNW | 77% | 0 | |
| 2 AM | Cloudy | 61° | 63° | 22% | 0 mph WSW | 85% | 0 | |
| 3 AM | Partly Cloudy | 61° | 63° | 15% | 1 mph SW | 83% | 0 | |
| 4 AM | Partly Cloudy | 56° | 55° | 14% | 2 mph WSW | 86% | 0 | |
| 5 AM | Clear | 56° | 54° | 12% | 3 mph SW | 83% | 0 | |
| 6 AM | Cloudy | 56° | 53° | 17% | 5 mph WSW | 78% | 0 | |
| 7 AM | Partly Cloudy | 59° | 56° | 12% | 6 mph WSW | 71% | 0 | |
| 8 AM | Patchy rain nearby | 70° | 70° | 12% | 4 mph W | 60% | 1 | |
| 9 AM | Sunny | 75° | 76° | 2% | 1 mph SE | 46% | 3 | |
| 10 AM | Sunny | 79° | 78° | 1% | 4 mph ESE | 39% | 5 | |
| 11 AM | Patchy rain nearby | 82° | 79° | 7% | 7 mph ESE | 34% | 7 | |
| 12 PM | Patchy rain nearby | 84° | 80° | 8% | 9 mph ESE | 31% | 9 | |
| 1 PM | Patchy rain nearby | 85° | 80° | 9% | 9 mph ESE | 30% | 6 | |
| 2 PM | Patchy light drizzle | 79° | 77° | 23% | 6 mph W | 40% | 3 | |
| 3 PM | Patchy light drizzle | 73° | 72° | 23% | 4 mph W | 49% | 1 | |
| 4 PM | Patchy rain nearby | 77° | 76° | 9% | 4 mph WNW | 45% | 1 | |
| 5 PM | Sunny | 82° | 78° | 1% | 7 mph E | 35% | 0 | |
| 6 PM | Patchy rain nearby | 76° | 73° | 10% | 9 mph ENE | 50% | 0 | |
| 7 PM | Patchy light rain | 70° | 70° | 60% | 4 mph NNW | 65% | 0 | |
| 8 PM | Moderate rain at times | 65° | 68° | 82% | 2 mph NNW | 85% | 0 | |
| 9 PM | Patchy rain nearby | 63° | 66° | 35% | 2 mph SSW | 90% | 0 | |
| 10 PM | Clear | 63° | 62° | 12% | 5 mph W | 82% | 0 | |
| 11 PM | Partly Cloudy | 64° | 64° | 12% | 3 mph W | 77% | 0 |
Boulder hourly weather - Saturday, August 15
In Boulder, expect a high near 78°F (26°C) around 1 PM and a low of 56°F (13°C) near 5 AM; precipitation risk peaks at 60% around 3 PM.
| Time | Conditions | Temp | Feels | Rain | Wind | Humidity | UV | |
|---|---|---|---|---|---|---|---|---|
| 12 AM | Partly Cloudy | 64° | 64° | 9% | 3 mph SSW | 73% | 0 | |
| 1 AM | Partly Cloudy | 60° | 58° | 10% | 4 mph SW | 76% | 0 | |
| 2 AM | Partly Cloudy | 58° | 57° | 11% | 2 mph WSW | 78% | 0 | |
| 3 AM | Patchy rain nearby | 60° | 57° | 18% | 5 mph W | 71% | 0 | |
| 4 AM | Clear | 57° | 55° | 7% | 4 mph WSW | 72% | 0 | |
| 5 AM | Clear | 56° | 54° | 9% | 2 mph WSW | 76% | 0 | |
| 6 AM | Partly Cloudy | 56° | 53° | 11% | 5 mph WNW | 73% | 0 | |
| 7 AM | Partly Cloudy | 59° | 56° | 9% | 5 mph W | 69% | 0 | |
| 8 AM | Partly Cloudy | 69° | 69° | 6% | 2 mph S | 58% | 1 | |
| 9 AM | Patchy rain nearby | 72° | 71° | 9% | 2 mph SSE | 52% | 3 | |
| 10 AM | Patchy rain nearby | 75° | 73° | 8% | 4 mph SE | 46% | 5 | |
| 11 AM | Patchy rain nearby | 76° | 75° | 9% | 3 mph SE | 44% | 7 | |
| 12 PM | Patchy rain nearby | 77° | 76° | 8% | 4 mph E | 42% | 8 | |
| 1 PM | Patchy rain nearby | 78° | 77° | 8% | 4 mph E | 41% | 5 | |
| 2 PM | Patchy light drizzle | 76° | 76° | 36% | 2 mph WNW | 44% | 4 | |
| 3 PM | Moderate rain at times | 66° | 60° | 60% | 14 mph WSW | 68% | 6 | |
| 4 PM | Patchy rain nearby | 62° | 60° | 25% | 6 mph WSW | 75% | 4 | |
| 5 PM | Sunny | 71° | 71° | 4% | 2 mph E | 55% | 1 | |
| 6 PM | Partly Cloudy | 70° | 68° | 7% | 6 mph SSW | 60% | 0 | |
| 7 PM | Sunny | 70° | 69° | 5% | 4 mph SW | 62% | 0 | |
| 8 PM | Clear | 60° | 58° | 6% | 4 mph SW | 67% | 0 | |
| 9 PM | Clear | 61° | 58° | 5% | 5 mph W | 66% | 0 | |
| 10 PM | Clear | 60° | 56° | 5% | 6 mph W | 67% | 0 | |
| 11 PM | Clear | 59° | 55° | 5% | 5 mph W | 67% | 0 |
Quick answers for the hours ahead
What is the warmest hour in Boulder today?
Will it rain in Boulder tonight?
When is the UV index highest in Boulder today?
Boulder hour-by-hour: what to expect
Over the next 24 hours in Boulder, temperatures range from 55°F (13°C) around 6 AM up to 82°F (28°C) near 2 PM - right in line with the typical August high of 83°F (28°C).
Precipitation is a real possibility: the chance of rain peaks at 70% around 4 PM. UV reaches 8 (12 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 Boulder 14-day forecast or the monthly climate averages.