 |
 Current Rapid City Weather Conditions |
Updated May 18th at 6:52 am |
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| light rain |
| Temperature: | 43°F |
Dew Point: | 39°F |
| Barometer: | 29.92 inHg |
Wind: | N 45 Mph |
| Humidity: | 87.0% |
Visibility: | 0M |
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| Rapid City Weather Forecast Summary |
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Today
May 18th
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Tuesday
May 19th
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Wednesday
May 20th
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Thursday
May 21st
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Friday
May 22nd
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Mostly Cloudy |
Mostly Sunny |
Sunny |
Mostly Cloudy with Showers |
Mix of Cloud and Sun |
46°F
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63°F
33°F |
73°F
45°F |
72°F
47°F |
61°F
51°F |
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| Rapid City Detailed Weather Forecast |
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| Monday, May 18th, 2026 |
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Morning |
Temperature: 42°F |
| Cloudy with a chance of showers. Windy. |
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Afternoon |
Temperature: 40°F |
| Cloudy with showers likely. Windy. |
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Evening |
Temperature: 41°F |
| A mix of cloudy and clear skies with a chance of showers. Showers possibly mixed with wet flurries. Windy at times. |
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| Tuesday, May 19th, 2026 |
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Overnight |
Temperature: 35°F |
| Clear with cloudy periods. |
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Morning |
Temperature: 39°F |
| Sunny. |
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Afternoon |
Temperature: 58°F |
| Sunny. |
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Evening |
Temperature: 57°F |
| Clear with cloudy periods. Windy at times. |
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| Wednesday, May 20th, 2026 |
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Overnight |
Temperature: 46°F |
| Clear. |
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Morning |
Temperature: 49°F |
| Sunny. Windy. |
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Afternoon |
Temperature: 70°F |
| Sunny. Windy at times. |
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Evening |
Temperature: 63°F |
| Mostly clear. Slight chance of a thunderstorm. Windy. |
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| Thursday, May 21st, 2026 |
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Overnight |
Temperature: 50°F |
| Clear. Windy. |
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Morning |
Temperature: 53°F |
| Sunny with cloudy periods. Windy at times. |
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Afternoon |
Temperature: 71°F |
| A mix of cloud and sun. Slight chance of a thunderstorm. Windy. |
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Evening |
Temperature: 54°F |
| A mix of clear and cloudy skies with showers likely. |
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| Friday, May 22nd, 2026 |
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Overnight |
Temperature: 53°F |
| Mostly cloudy with a slight chance of showers. |
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Morning |
Temperature: 52°F |
| Cloudy with a slight chance of showers. Windy. |
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Afternoon |
Temperature: 52°F |
| Mostly cloudy with a chance of showers. Windy. |
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Evening |
Temperature: 57°F |
| Clear with a slight chance of showers. Windy at times. |
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| Saturday, May 23rd, 2026 |
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Overnight |
Temperature: 49°F |
| Clear. |
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Morning |
Temperature: 55°F |
| Sunny. |
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Afternoon |
Temperature: 73°F |
| Sunny. Windy. |
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Evening |
Temperature: 71°F |
| Clear. |
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| Sunday, May 24th, 2026 |
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Overnight |
Temperature: 59°F |
| Clear. |
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Morning |
Temperature: 68°F |
| Sunny. |
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Afternoon |
Temperature: 85°F |
| Mostly sunny. Slight chance of a thunderstorm. |
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Evening |
Temperature: 79°F |
| Mostly clear. Slight chance of a thunderstorm. |
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| Monday, May 25th, 2026 |
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Overnight |
Temperature: 65°F |
| Mostly clear. |
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Morning |
Temperature: 76°F |
| Mostly sunny. Windy at times. |
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Afternoon |
Temperature: 90°F |
| Sunny. Windy. |
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Evening |
Temperature: 82°F |
| Clear. Windy at times. |
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| Tuesday, May 26th, 2026 |
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Overnight |
Temperature: 67°F |
| Clear. |
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Morning |
Temperature: 71°F |
| Sunny. Wind 20 to 30 mph. |
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Afternoon |
Temperature: 80°F |
| A mix of sun and cloud. Windy. |
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Evening |
Temperature: 67°F |
| A mix of clear and cloudy skies with a chance of showers. Windy. |
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