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Rainbow School Weather Forecast
| OVERNIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY |
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| Fog | Chance of T-Storm | Showers | Showers | Showers | Chance of Showers | Partly Cloudy | Partly Cloudy | Partly Cloudy | Chance of T-Storm | Chance of T-Storm | Clearing |
| Lo: 55°FLo: 13°C | Hi: 65°FHi: 18°C | Lo: 49°FLo: 9°C | Hi: 59°FHi: 15°C | Lo: 49°FLo: 9°C | Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C | Hi: 70°FHi: 21°C | Lo: 50°FLo: 10°C | Hi: 79°FHi: 26°C | Lo: 51°FLo: 11°C | Hi: 79°FHi: 26°C |
| POP: 50% | POP: 80% | POP: 80% | POP: 90% | POP: 20% | POP: 20% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 127 AM MDT Sat Sep 19 2026 
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Issued: 1127 PM MDT Fri Sep 18 2026
Key Messages
- Cool and wet this weekend, with daily precipitation in the region.
- Gradual warmup early next week.
Discussion
...(This Evening Through Friday) Issued at 213 PM MDT Fri Sep 18 2026
Current Water Vapor and upper air models show southwest flow over the forecast area, as upper low digs into the Rockies. 18Z surface analysis depicts a low over southeastern SD, with frontal boundary stretching into central Nebraska. Winds are generally light out of the north, with temperatures in the 60s to u...