Grant Lake, MN Weather Forecast
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Grant Lake Weather Forecast
| REST OF TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | FRIDAY | FRIDAY NIGHT |
| Mostly Clear | Sunny | Partly Cloudy | Mostly Sunny | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Mostly Clear | Mostly Clear | Mostly Sunny | Chance of T-Storm |
| Lo: 48°FLo: 9°C | Hi: 75°FHi: 24°C | Lo: 53°FLo: 12°C | Hi: 83°FHi: 28°C | Lo: 63°FLo: 17°C | Hi: 83°FHi: 28°C | Lo: 58°FLo: 14°C | Hi: 75°FHi: 24°C | Hi: 78°FHi: 26°C Lo: 55°FLo: 13°C | Hi: 78°FHi: 26°C Lo: 55°FLo: 13°C | Hi: 83°FHi: 28°C | Lo: 58°FLo: 14°C |
| POP: 70% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1237 AM CDT Sun Aug 23 2026 

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Grant Lake Forecast Discussion
Issued: 1117 PM CDT Sat Aug 22 2026
Key Messages
- There is a level 1 out of 5 risk for severe thunderstorms Monday afternoon and evening.
Discussion
... Issued at 309 PM CDT Sat Aug 22 2026
...Synopsis...
Northwest flow prevails through the forecast period, with the passage of several shortwaves. A weak system moves into central and southeast North Dakota on Sunday, with low chances for a passing afternoon shower or thunderstorm. Best chances will be further west, however. A better chance for showers and storms will occur late Monday in...
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