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 Rapid City Weather Forecast Summary |
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Today
May 16th
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Sunday
May 17th
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Monday
May 18th
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Tuesday
May 19th
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Wednesday
May 20th
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Mostly Sunny |
Mix of Cloud and Sun |
Cloudy |
Mix of Sun and Cloud |
Mostly Sunny |
79°F
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59°F
50°F |
45°F
38°F |
56°F
36°F |
67°F
39°F |
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| Rapid City Detailed Weather Forecast |
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| Saturday, May 16th, 2026 |
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Morning |
Temperature: 55°F |
| Sunny. |
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Afternoon |
Temperature: 75°F |
| Mostly sunny. Windy at times. |
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Evening |
Temperature: 69°F |
| A mix of cloudy and clear skies with a chance of showers. Slight chance of a thunderstorm. Windy. |
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| Sunday, May 17th, 2026 |
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Overnight |
Temperature: 55°F |
| A mix of cloudy and clear skies with a chance of showers. Windy at times. |
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Morning |
Temperature: 53°F |
| Cloudy with sunny periods. Windy. |
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Afternoon |
Temperature: 55°F |
| Cloudy with a slight chance of showers. Wind 20 to 30 mph. |
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Evening |
Temperature: 55°F |
| A mix of clear and cloudy skies. Wind 20 to 30 mph. |
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| Monday, May 18th, 2026 |
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Overnight |
Temperature: 44°F |
| Mostly cloudy. Wind 20 to 30 mph. |
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Morning |
Temperature: 40°F |
| Cloudy with a chance of showers. Showers possibly mixed with wet flurries. Windy. |
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Afternoon |
Temperature: 38°F |
| Cloudy with a chance of showers. Showers possibly mixed with wet flurries. Windy. |
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Evening |
Temperature: 38°F |
| Mostly cloudy 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: 37°F |
| Cloudy with clear periods. |
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Morning |
Temperature: 40°F |
| A mix of cloud and sun. Windy at times. |
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Afternoon |
Temperature: 53°F |
| A mix of sun and cloud. Windy at times. |
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Evening |
Temperature: 52°F |
| Mostly clear. |
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| Wednesday, May 20th, 2026 |
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Overnight |
Temperature: 41°F |
| Clear with cloudy periods. |
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Morning |
Temperature: 46°F |
| Sunny with cloudy periods. Windy at times. |
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Afternoon |
Temperature: 65°F |
| Sunny with cloudy periods. Windy at times. |
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Evening |
Temperature: 54°F |
| A mix of clear and cloudy skies. Windy. |
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| Thursday, May 21st, 2026 |
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Overnight |
Temperature: 48°F |
| Clear with cloudy periods. Windy at times. |
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Morning |
Temperature: 55°F |
| Sunny. |
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Afternoon |
Temperature: 75°F |
| Sunny with cloudy periods. Windy at times. |
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Evening |
Temperature: 71°F |
| Mostly clear. Windy. |
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| Friday, May 22nd, 2026 |
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Overnight |
Temperature: 60°F |
| Clear. |
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Morning |
Temperature: 64°F |
| Sunny. |
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Afternoon |
Temperature: 84°F |
| Sunny with cloudy periods. Windy at times. |
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Evening |
Temperature: 78°F |
| Mostly clear. Windy. |
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| Saturday, May 23rd, 2026 |
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Overnight |
Temperature: 57°F |
| Mostly clear. Windy. |
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Morning |
Temperature: 62°F |
| Mostly sunny. |
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Afternoon |
Temperature: 87°F |
| Sunny with cloudy periods. Windy at times. |
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Evening |
Temperature: 77°F |
| Mostly clear. Windy at times. |
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| Sunday, May 24th, 2026 |
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Overnight |
Temperature: 66°F |
| Mostly clear. |
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Morning |
Temperature: 68°F |
| Mostly sunny. Wind 20 to 30 mph. |
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Afternoon |
Temperature: 77°F |
| Sunny. Wind 20 to 30 mph. |
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Evening |
Temperature: 68°F |
| Clear. Windy. |
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