Rapid City, SD Hourly Forecast
Rapid City temperature trend - Next 24 hours
The next 24 hours at a glance
- Warmest hour: 3 PM - around 97°
- Coolest hour: 5 AM - around 68°
- Rain risk: low all day (peaks at 3%)
- UV peak: 1 PM at index 10 - sun protection recommended
- Windiest: 1 PM at 11 mph
Rapid City hourly weather - Friday, July 17
In Rapid City, expect a high near 97°F (36°C) around 3 PM and a low of 80°F (27°C) near 11 PM, with no meaningful precipitation risk.
| Time | Conditions | Temp | Feels | Rain | Wind | Humidity | UV | |
|---|---|---|---|---|---|---|---|---|
| 11 AM | Sunny | 82° | 84° | 3% | 10 mph NNE | 61% | 8 | |
| 12 PM | Sunny | 91° | 96° | 2% | 11 mph NNE | 50% | 10 | |
| 1 PM | Sunny | 93° | 97° | 1% | 11 mph NE | 43% | 10 | |
| 2 PM | Sunny | 95° | 82° | 1% | 11 mph ENE | 36% | 9 | |
| 3 PM | Sunny | 97° | 83° | 0% | 11 mph ENE | 31% | 5 | |
| 4 PM | Sunny | 96° | 83° | 0% | 11 mph ENE | 29% | 1 | |
| 5 PM | Sunny | 92° | 79° | 0% | 11 mph ENE | 29% | 0 | |
| 6 PM | Sunny | 90° | 77° | 0% | 11 mph ENE | 29% | 0 | |
| 7 PM | Sunny | 91° | 78° | 0% | 10 mph ENE | 28% | 0 | |
| 8 PM | Sunny | 89° | 77° | 0% | 8 mph NE | 29% | 0 | |
| 9 PM | Clear | 87° | 76° | 0% | 7 mph NE | 30% | 0 | |
| 10 PM | Clear | 83° | 72° | 1% | 7 mph NNE | 32% | 0 | |
| 11 PM | Clear | 80° | 70° | 1% | 6 mph NNE | 36% | 0 |
Rapid City hourly weather - Saturday, July 18
In Rapid City, expect a high near 100°F (38°C) around 4 PM and a low of 68°F (20°C) near 5 AM, with no meaningful precipitation risk.
| Time | Conditions | Temp | Feels | Rain | Wind | Humidity | UV | |
|---|---|---|---|---|---|---|---|---|
| 12 AM | Clear | 78° | 69° | 1% | 3 mph NNW | 37% | 0 | |
| 1 AM | Clear | 74° | 64° | 2% | 4 mph WNW | 46% | 0 | |
| 2 AM | Clear | 73° | 63° | 1% | 5 mph NNW | 45% | 0 | |
| 3 AM | Clear | 71° | 62° | 1% | 4 mph NNW | 44% | 0 | |
| 4 AM | Clear | 70° | 61° | 1% | 3 mph NNW | 46% | 0 | |
| 5 AM | Clear | 68° | 59° | 2% | 3 mph N | 49% | 0 | |
| 6 AM | Sunny | 69° | 60° | 2% | 4 mph NNE | 51% | 0 | |
| 7 AM | Sunny | 74° | 65° | 2% | 3 mph ESE | 49% | 1 | |
| 8 AM | Sunny | 77° | 66° | 1% | 5 mph ESE | 47% | 2 | |
| 9 AM | Sunny | 80° | 80° | 1% | 7 mph ESE | 42% | 4 | |
| 10 AM | Sunny | 84° | 72° | 1% | 9 mph ESE | 38% | 6 | |
| 11 AM | Sunny | 88° | 75° | 1% | 11 mph SE | 33% | 8 | |
| 12 PM | Sunny | 92° | 78° | 1% | 12 mph SE | 29% | 10 | |
| 1 PM | Sunny | 95° | 80° | 0% | 15 mph SE | 25% | 10 | |
| 2 PM | Sunny | 98° | 82° | 0% | 16 mph SSE | 21% | 10 | |
| 3 PM | Sunny | 99° | 83° | 0% | 15 mph SSE | 20% | 8 | |
| 4 PM | Sunny | 100° | 84° | 0% | 14 mph SSE | 18% | 5 | |
| 5 PM | Sunny | 100° | 84° | 0% | 14 mph SE | 18% | 3 | |
| 6 PM | Sunny | 99° | 84° | 0% | 14 mph SE | 18% | 1 | |
| 7 PM | Sunny | 97° | 81° | 0% | 15 mph SE | 20% | 0 | |
| 8 PM | Sunny | 92° | 78° | 1% | 12 mph SE | 25% | 0 | |
| 9 PM | Clear | 84° | 72° | 1% | 8 mph SSE | 30% | 0 | |
| 10 PM | Clear | 82° | 70° | 1% | 7 mph S | 32% | 0 | |
| 11 PM | Clear | 79° | 68° | 1% | 7 mph SSW | 33% | 0 |
Rapid City hourly weather - Sunday, July 19
In Rapid City, expect a high near 106°F (41°C) around 3 PM and a low of 78°F (25°C) near 4 AM, with no meaningful precipitation risk.
| Time | Conditions | Temp | Feels | Rain | Wind | Humidity | UV | |
|---|---|---|---|---|---|---|---|---|
| 12 AM | Clear | 78° | 67° | 1% | 7 mph SW | 33% | 0 | |
| 1 AM | Clear | 80° | 67° | 1% | 10 mph SSW | 31% | 0 | |
| 2 AM | Clear | 80° | 67° | 1% | 11 mph SSW | 31% | 0 | |
| 3 AM | Clear | 79° | 66° | 1% | 11 mph SW | 33% | 0 | |
| 4 AM | Clear | 78° | 65° | 1% | 10 mph SW | 35% | 0 | |
| 5 AM | Clear | 78° | 65° | 1% | 11 mph SW | 36% | 0 | |
| 6 AM | Sunny | 79° | 67° | 1% | 8 mph WSW | 36% | 0 | |
| 7 AM | Sunny | 86° | 76° | 1% | 4 mph SW | 32% | 1 | |
| 8 AM | Sunny | 92° | 81° | 1% | 6 mph SW | 26% | 2 | |
| 9 AM | Sunny | 96° | 86° | 1% | 5 mph SSW | 22% | 2 | |
| 10 AM | Sunny | 99° | 87° | 1% | 9 mph S | 18% | 4 | |
| 11 AM | Sunny | 102° | 87° | 1% | 14 mph S | 16% | 8 | |
| 12 PM | Sunny | 103° | 87° | 1% | 16 mph S | 14% | 10 | |
| 1 PM | Sunny | 104° | 88° | 1% | 16 mph S | 14% | 10 | |
| 2 PM | Sunny | 105° | 89° | 1% | 15 mph SSE | 13% | 7 | |
| 3 PM | Sunny | 106° | 91° | 1% | 14 mph SSE | 12% | 4 | |
| 4 PM | Partly Cloudy | 106° | 91° | 3% | 13 mph SSE | 12% | 1 | |
| 5 PM | Cloudy | 103° | 90° | 5% | 11 mph SSE | 13% | 3 | |
| 6 PM | Partly Cloudy | 98° | 90° | 3% | 2 mph NW | 17% | 1 | |
| 7 PM | Partly Cloudy | 96° | 83° | 2% | 10 mph N | 19% | 0 | |
| 8 PM | Partly Cloudy | 92° | 78° | 3% | 12 mph N | 22% | 0 | |
| 9 PM | Partly Cloudy | 86° | 71° | 3% | 13 mph NNE | 29% | 0 | |
| 10 PM | Partly Cloudy | 84° | 70° | 2% | 12 mph N | 32% | 0 | |
| 11 PM | Partly Cloudy | 78° | 67° | 3% | 8 mph NW | 37% | 0 |
Quick answers for the hours ahead
What is the warmest hour in Rapid City today?
Will it rain in Rapid City tonight?
When is the UV index highest in Rapid City today?
Rapid City hour-by-hour: what to expect
Over the next 24 hours in Rapid City, temperatures range from 68°F (20°C) around 5 AM up to 97°F (36°C) near 3 PM - about 11°F (6°C) above the typical July high of 86°F (30°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 Rapid City 14-day forecast or the monthly climate averages.