John Dunn Trail, MT Weather Forecast
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John Dunn Trail Weather Forecast
| TODAY | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT |
| Patchy Fog | Chance of T-Storm | Rain Showers | Mostly Clear | Sunny | Partly Cloudy | Mostly Sunny | Partly Cloudy | Mostly Sunny | Partly Cloudy | Mostly Sunny | Chance of Showers |
| Hi: 79°FHi: 26°C | Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°C | Lo: 51°FLo: 11°C | Hi: 81°FHi: 27°C | Lo: 55°FLo: 13°C | Hi: 81°FHi: 27°C | Lo: 55°FLo: 13°C | Hi: 71°FHi: 22°C | Lo: 49°FLo: 9°C | Hi: 70°FHi: 21°C | Lo: 49°FLo: 9°C |
| POP: 40% | POP: 40% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 350 AM MDT Tue Sep 22 2026 

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Issued: 358 AM MDT Tue Sep 22 2026
Key Messages
- Areas of fog this morning, esepcailly near Billings.
- Warmer and drier much of the work week. 80s return midweek.
- Scattered showers and storms late Tuesday into Wednesday.
- Potential weather system late Friday into the Weekend.
Discussion
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Next 7 Days...
With plenty of moisture left over from the weekend, and another clear night with calm winds, fog development is forecast again this morning. The area of concern is the same locations that saw dense fog Monday morning. With dew points in...
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