Weather WorldGrant Lake, MO Weather Forecast
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Grant Lake Weather Forecast
| REST OF TODAY | TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT |
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| Mostly Cloudy | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy | Mostly Sunny | Partly Cloudy | Chance of Showers | Chance of Showers | Showers | Chance of T-Storm | Chance of Showers | Chance of Showers |
| Hi: 70°FHi: 21°C | Lo: 59°FLo: 15°C | Hi: 69°FHi: 21°C | Lo: 51°FLo: 11°C | Hi: 71°FHi: 22°C | Lo: 51°FLo: 11°C | Hi: 70°FHi: 21°C Lo: 55°FLo: 13°C | Hi: 70°FHi: 21°C Lo: 55°FLo: 13°C | Hi: 70°FHi: 21°C | Lo: 59°FLo: 15°C | Hi: 79°FHi: 26°C | Lo: 61°FLo: 16°C |
| POP: 50% | POP: 50% | POP: 70% | POP: 60% | POP: 70% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1122 AM CDT Mon Sep 21 2026 
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Meteorlogic Glosserator
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Issued: 614 AM CDT Mon Sep 21 2026
Key Messages
- Fog Possible Monday Morning with Light Rain Activity
- Cool Fall Temperatures This Week
- Rain Returns Friday
Discussion
... Issued at 307 AM CDT Mon Sep 21 2026
Surface cyclone has pushed southeast of the area while surface high pressure centered over the Upper Midwest spreads across much of the central CONUS. While there is not a lot of forcing at the surface, an H5 trough is moving across the Central Plains which will inhibit mid-level height rises. This will be just enough lift today to...