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Marmarth Weather Forecast
| TODAY | TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT |
 | |  | | | |  |  | | |  | |
| Patchy Fog | Patchy Fog | Chance of Showers | Showers | Showers | Chance of Showers | Partly Sunny | Increasing Clouds | Clouds | Mostly Cloudy | Clearing | Chance of Showers |
| Hi: 71°FHi: 22°C | Lo: 51°FLo: 11°C | Hi: 65°FHi: 18°C | Lo: 51°FLo: 11°C | Hi: 60°FHi: 16°C | Lo: 49°FLo: 9°C | Hi: 69°FHi: 21°C | Lo: 49°FLo: 9°C | Hi: 71°FHi: 22°C | Lo: 51°FLo: 11°C | Hi: 75°FHi: 24°C | Lo: 51°FLo: 11°C |
| POP: 40% | POP: 40% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 636 AM MDT Fri Sep 18 2026 
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Issued: 622 AM CDT Fri Sep 18 2026
Key Messages
- Medium to high chances for rain far south central into the southern James River Valley this morning.
- Low to medium chances for showers and possibly a thunderstorm west central, northwest and north central today an into this evening.
- Medium to high chances for rain in the west through much of the weekend.
- Patchy fog possible this morning and again Saturday morning.
- Seasonable temperatures through early next week, with highs mostly in the 60s and 70s.
Discussion
... Issued at 343 AM CDT ...