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Fossum Weather Forecast
| REST OF TODAY | TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY |
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| Chance of T-Storm | Showers Likely | Mostly Sunny | Chance of Showers | Chance of Showers | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy | Chance of Showers | Partly Sunny | Partly Cloudy | Partly Sunny |
| Hi: 68°FHi: 20°C | Lo: 53°FLo: 12°C | Hi: 73°FHi: 23°C | Lo: 53°FLo: 12°C | Hi: 68°FHi: 20°C | Hi: 73°FHi: 23°C Lo: 48°FLo: 9°C | Hi: 73°FHi: 23°C Lo: 48°FLo: 9°C | Hi: 73°FHi: 23°C Lo: 48°FLo: 9°C | Lo: 48°FLo: 9°C | Hi: 73°FHi: 23°C | Lo: 48°FLo: 9°C | Hi: 73°FHi: 23°C |
| POP: 60% | POP: 60% | POP: 20% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 122 PM CDT Wed Sep 16 2026 
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Issued: 616 AM CDT Wed Sep 16 2026
Key Messages
- Frost is forecast this morning in northwest Minnesota near Lake of the Woods to Red Lakes area.
- Showers and weak thunderstorms today. Additional chances for rain come Friday into the weekend.
Discussion
... Issued at 338 PM CDT Tue Sep 15 2026
...Synopsis...
Post-cold frontal, continental air mass continues to spread throughout our region behind yesterday`s cold front/system. Breezy winds will taper tonight as surface high pressure settles into the region, centered near northwest MN by W...