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River Valley School, IA Weather Forecast
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River Valley School Weather Forecast
| TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY |
 |  |  |  | | |  |  |  | | |  |
| Chance of T-Storm | Mostly Sunny | Mostly Clear | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of Showers | Mostly Cloudy | Partly Cloudy | Mostly Cloudy | Chance of Showers | Clearing |
| Lo: 61°FLo: 16°C | Hi: 79°FHi: 26°C | Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°C | Lo: 61°FLo: 16°C | Hi: 79°FHi: 26°C | Lo: 59°FLo: 15°C | Hi: 75°FHi: 24°C | Lo: 55°FLo: 13°C | Hi: 75°FHi: 24°C | Lo: 59°FLo: 15°C | Hi: 79°FHi: 26°C |
| POP: 40% | POP: 40% | POP: 50% | POP: 60% | POP: 50% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 544 PM CDT Sat Aug 15 2026 
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Issued: 626 PM CDT Sat Aug 15 2026
Key Messages
- Afternoon thunderstorms will primarily pose a heavy rain risk, with localized rates of 2-3" per hour possible. A brief window for gusty winds, small hail, and even an isolated funnel over NW IA and SW MN is possible this afternoon.
- A front will bring a risk for isolated to scattered severe thunderstorms Monday afternoon and evening. If storms develop, risk of 2" hail and 60 mph winds will be possible.
- An active weather pattern will keep intermittent thun...