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Flat Lake Weather Forecast
| TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | FRIDAY | FRIDAY NIGHT |
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| Chance of T-Storm | Chance of T-Storm | Mostly Clear | Mostly Sunny | Mostly Clear | Partly Cloudy | Chance of T-Storm | Chance of T-Storm | Partly Cloudy | Partly Cloudy | Chance of T-Storm | Chance of Showers |
| Lo: 38°FLo: 3°C | Hi: 52°FHi: 11°C | Lo: 35°FLo: 2°C | Hi: 57°FHi: 14°C | Lo: 36°FLo: 2°C | Hi: 60°FHi: 16°C | Lo: 40°FLo: 4°C | Hi: 58°FHi: 14°C | Hi: 61°FHi: 16°C Lo: 40°FLo: 4°C | Hi: 61°FHi: 16°C Lo: 40°FLo: 4°C | Hi: 60°FHi: 16°C | Lo: 42°FLo: 6°C |
| POP: 50% | POP: 40% | POP: 20% | POP: 30% | POP: 40% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 605 PM MDT Sat Sep 19 2026 
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Issued: 615 PM MDT Sat Sep 19 2026
Key Messages
- Another round of scattered showers/t-storms this afternoon for the mountains and urban corridor.
- Numerous showers/t-storms over the plains, where some will be strong to severe throughthis evening, producing locally heavy rain, strong outflow winds, and hail.
- Trending drier Sunday into Monday, although scattered afternoon/eveningstorms may continue Sunday, particularly along and south of I-70.
- Cooler temperatures expected Sunday into Monday, before warmertemperatures return. Next week...