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Alton, MO Weather Forecast
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Alton Weather Forecast
| TODAY | TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | SATURDAY |
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| Showers | Chance of Showers | Chance of Showers | Chance of Showers | Chance of T-Storm | Chance of T-Storm | Chance of Showers | Partly Cloudy | Partly Cloudy | Chance of Showers | Partly Cloudy | Partly Cloudy |
| Hi: 61°FHi: 16°C | Lo: 55°FLo: 13°C | Hi: 71°FHi: 22°C | Lo: 59°FLo: 15°C | Hi: 71°FHi: 22°C | Lo: 49°FLo: 9°C | Hi: 69°FHi: 21°C | Hi: 69°FHi: 21°C Lo: 41°FLo: 5°C | Hi: 69°FHi: 21°C Lo: 41°FLo: 5°C | Lo: 41°FLo: 5°C | Hi: 69°FHi: 21°C Lo: 41°FLo: 5°C | Hi: 69°FHi: 21°C Lo: 41°FLo: 5°C |
| POP: 80% | POP: 20% | POP: 30% | POP: 70% | POP: 100% | POP: 60% | POP: 20% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 337 AM CST Sun Nov 01 2026 
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Issued: 605 AM CST Sun Nov 1 2026
Key Messages
- Drizzle and lowered visibilities will stick around through the late morning into the early afternoon hours.
- 15-25 mph southerly winds with gusts up to 35 mph are expected on Monday. The strongest winds will generally occur along and west of Highway 65.
- 90+% chance for rain to move across the area late Monday into Tuesday. Monitoring a low-end potential for severe weather with this system, mostly along and west of I-49.
Aviation
/12Z TAFS THROUGH 12Z MONDAY/... Issued at 552 AM CST Sun ...