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Gustavus Weather Forecast
| TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY |
 |  |  | |  |  | |  | |  | | |
| Chance of T-Storm | Mostly Sunny | Partly Cloudy | Mostly Sunny | Chance of Showers | Chance of T-Storm | Chance of T-Storm | Chance of Showers | Chance of Showers | Partly Cloudy | Partly Cloudy | Chance of Showers |
| Lo: 55°FLo: 13°C | Hi: 71°FHi: 22°C | Lo: 50°FLo: 10°C | Hi: 80°FHi: 27°C | Lo: 65°FLo: 18°C | Hi: 81°FHi: 27°C | Lo: 65°FLo: 18°C | Hi: 81°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 79°FHi: 26°C | Lo: 59°FLo: 15°C | Hi: 79°FHi: 26°C |
| POP: 70% | POP: 50% | POP: 50% | POP: 50% | POP: 50% | POP: 50% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 717 PM EDT Sun Sep 13 2026 
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Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 743 PM EDT Sun Sep 13 2026
Key Messages
1) Canadian high pressure brings an early-fall like airmass briefly, but shifts east quickly with a return to the warm sector midweek.
2) Oscillating stationary front Tuesday night through Thursday brings a return of POPs to the area.
Discussion
... KEY MESSAGE 1... High pressure will build in behind the cold front this evening and tonight with strong pressure rises and northerly winds gusting 15- 25mph. Canadian airmass settles in for Monday with dewpoints down into the lower 50s and d...