Weather World
Grattan, MN Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Grattan Weather Forecast
| THIS AFTERNOON | TONIGHT | LABOR DAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT |
 |  |  | |  |  |  |  |  | | | |
| Partly Sunny | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of Showers | Mostly Clear | Partly Cloudy | Partly Cloudy | Mostly Clear | Mostly Clear | Mostly Sunny | Chance of T-Storm |
| Hi: 80°FHi: 27°C | Lo: 65°FLo: 18°C | Hi: 75°FHi: 24°C | Lo: 65°FLo: 18°C | Hi: 79°FHi: 26°C | Lo: 55°FLo: 13°C | Hi: 69°FHi: 21°C Lo: 45°FLo: 7°C | Hi: 69°FHi: 21°C Lo: 45°FLo: 7°C | Hi: 75°FHi: 24°C Lo: 55°FLo: 13°C | Hi: 75°FHi: 24°C Lo: 55°FLo: 13°C | Hi: 75°FHi: 24°C | Lo: 49°FLo: 9°C |
| POP: 50% | POP: 50% | POP: 80% | POP: 20% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 341 PM CDT Sun Sep 06 2026 
Grattan Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Grattan Weather Map
Grattan Quick Facts
Grattan Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 238 PM CDT Sun Sep 6 2026
Key Messages
- Scattered showers and thunderstorms arrive this evening across the west. More widespread rainfall arrives late tomorrow and lingers through Tuesday.
- Marginal risk of severe storms late Monday into Tuesday morning. There remains potential for redevelopment of strong to severe storms Tuesday afternoon as well.
- Gale-force wind gusts are possible over western Lake Superior early to mid next week, especially Wednesday.
Discussion
... Issued at 231 PM CDT Sun Sep 6 2026
Current Conditions:
Sur...