Rapid City Regional Airport (RAP) 15 Day Weather Forecast, Rapid City United States
Current weather conditions and 15 day weather forecast for Rapid City Regional Airport in Rapid City, United States including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain, wind speed, cloud, pressure, and UV index.
Current weather conditions at RAP
| 13 September 2026 Sun 10.8 ° C ( 51.4°F )  Clear |
Feels Like : 8.3 ° C / 46.9°F Humidity : % 55 Pressure : 1018 mb Wind Speed : 12.2 kmph / 7.6 miles from NNW 
Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 5 |
15-day weather forecast for Rapid City Regional Airport, Rapid City, United States
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 13 September 2026 Sun | Sunny |
9.6 ° C | 20.4 ° C | 15.4 ° C | % 57 | 26.6 km/h | 57% |
| 14 September 2026 Mon | Sunny |
13.2 ° C | 26.8 ° C | 20.2 ° C | % 53 | 33.5 km/h | 59% |
| 15 September 2026 Tue | Sunny |
8.8 ° C | 20.6 ° C | 14.5 ° C | % 47 | 27.4 km/h | 3% |
| 16 September 2026 Wed |  Overcast |
13.5 ° C | 25.4 ° C | 18.1 ° C | % 55 | 34.6 km/h | 18% |
| 17 September 2026 Thu | Overcast |
11.5 ° C | 23.8 ° C | 17.6 ° C | % 71 | 22.3 km/h | 42% |
| 18 September 2026 Fri |  Light rain shower |
14.6 ° C | 17.4 ° C | 16.3 ° C | % 92 | 20.5 km/h | 92% |
| 19 September 2026 Sat |  Patchy rain nearby |
13.2 ° C | 19.5 ° C | 15.4 ° C | % 78 | 21.2 km/h | 72% |
| 20 September 2026 Sun | Sunny |
11.5 ° C | 22.2 ° C | 16.7 ° C | % 59 | 25.2 km/h | 3% |
| 21 September 2026 Mon | Sunny |
12.3 ° C | 25.9 ° C | 18.5 ° C | % 50 | 31 km/h | 4% |
| 22 September 2026 Tue | Overcast |
14.6 ° C | 25 ° C | 18.7 ° C | % 50 | 24.5 km/h | 6% |
| 23 September 2026 Wed | Light rain shower |
14.3 ° C | 21 ° C | 17.2 ° C | % 67 | 29.5 km/h | 68% |
| 24 September 2026 Thu | Sunny |
13.6 ° C | 28.5 ° C | 20.4 ° C | % 46 | 25.6 km/h | 2% |
| 25 September 2026 Fri | Sunny |
11.2 ° C | 20.1 ° C | 15.2 ° C | % 35 | 25.9 km/h | 1% |
| 26 September 2026 Sat | Sunny |
9.9 ° C | 24.6 ° C | 16.7 ° C | % 45 | 18.4 km/h | 2% |
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