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Forsyth High School Weather Forecast
| TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY |
 |  | |  |  |  |  |  |  |  |  | |
| Patchy Fog | Increasing Clouds | Patchy Fog | Rain Showers | Thunderstorms | Chance of T-Storm | Chance of T-Storm | Chance of Showers | Chance of Showers | Mostly Sunny | Mostly Clear | Sunny |
| Lo: 49°FLo: 9°C | Hi: 81°FHi: 27°C | Lo: 59°FLo: 15°C | Hi: 81°FHi: 27°C | Lo: 55°FLo: 13°C | Hi: 71°FHi: 22°C | Lo: 51°FLo: 11°C | Hi: 71°FHi: 22°C | Lo: 51°FLo: 11°C | Hi: 79°FHi: 26°C | Lo: 50°FLo: 10°C | Hi: 79°FHi: 26°C |
| POP: 20% | POP: 100% | POP: 90% | POP: 70% | POP: 50% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 350 PM MDT Wed Sep 16 2026 
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Issued: 1243 PM MDT Wed Sep 16 2026
Key Messages
- Isolated to scattered showers and thunderstorms Thursday afternoon and evening. Locally heavy rain possible over SE Montana with any showers/thunderstorms.
- A few strong thunderstorms are possible from Billings east Friday afternoon into the evening hours.
- Strong precipitation chances spread across the area from Friday afternoon through the weekend, with the potential for locally heavy rainfall widespread through Saturday night.
- Chances for widespread weekend precipitation accumulatio...