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Winthrop Weather Forecast
| TODAY | TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT |
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| Chance of T-Storm | Chance of T-Storm | Chance of Showers | Chance of Showers | Showers | Chance of T-Storm | Chance of Showers | Chance of Showers | Chance of T-Storm | Showers | Showers Likely | Chance of Showers |
| Hi: 70°FHi: 21°C | Lo: 69°FLo: 21°C | Hi: 75°FHi: 24°C | Lo: 55°FLo: 13°C | Hi: 69°FHi: 21°C | Lo: 61°FLo: 16°C | Hi: 75°FHi: 24°C | Lo: 61°FLo: 16°C | Hi: 79°FHi: 26°C | Lo: 61°FLo: 16°C | Hi: 75°FHi: 24°C | Lo: 59°FLo: 15°C |
| POP: 50% | POP: 100% | POP: 50% | POP: 40% | POP: 90% | POP: 90% | POP: 40% | POP: 50% | POP: 70% | POP: 80% | POP: 70% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 221 AM CDT Mon Sep 14 2026 
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Issued: 145 AM CDT Mon Sep 14 2026
Key Messages
- Active pattern this week with numerous rounds of showers and storms with heavy rain.
- There is a Marginal Risk, Level 1 out of 5, for severe storms this evening into tonight for the western portions of the outlook area. Primary hazards will be heavy rain and isolated damaging winds.
- An elevated flash flood risk may develop mid-week with repeating rounds of storms. There is a moderate chance (50-70%) for parts of the area to see over 2 inches of rainfall with localized areas of 4+ inch...