Weather WorldRapid Valley School, SD Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Rapid Valley School Weather Forecast
| TODAY | TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT |
 |  | | | | |  |  |  |  | | |
| Sunny | Clear | Sunny | Clear | Sunny | Mostly Clear | Partly Cloudy | Partly Cloudy | Chance of Rain | Chance of Rain | Partly Cloudy | Mostly Clear |
| Hi: 59°FHi: 15°C | Lo: 45°FLo: 7°C | Hi: 75°FHi: 24°C | Lo: 49°FLo: 9°C | Hi: 69°FHi: 21°C | Lo: 50°FLo: 10°C | Hi: 75°FHi: 24°C | Lo: 55°FLo: 13°C | Hi: 75°FHi: 24°C | Lo: 45°FLo: 7°C | Hi: 55°FHi: 13°C | Lo: 39°FLo: 4°C |
| POP: 20% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 702 AM MDT Mon Oct 19 2026 
Rapid Valley School Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Rapid Valley School Weather Map
Rapid Valley School Quick Facts
Rapid Valley School Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 510 AM MDT Mon Oct 19 2026
Key Messages
- Warm and dry weather through much of this week.
Discussion
...(This Evening Through Sunday) Issued at 112 PM MDT Sun Oct 18 2026
Water vapor and upper air models show southwest flow over the region, as upper ridge sits to our east and an upper trough is located over the southwestern CONUS this afternoon. 18Z surface analysis shows a frontal boundary stretching from northeastern SD down into central WY, mostly through our forecast area now. Satellite shows clear skies over the forecast a...