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City of Avon, SDAvon, SD Weather Forecast
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Avon Weather Forecast
| OVERNIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY |
 |  |  | |  |  | | | | |  | |
| Partly Cloudy | Chance of Showers | Chance of Showers | Chance of Showers | Mostly Cloudy | Mostly Cloudy | Showers | Showers | Showers | Showers | Chance of Showers | Chance of Showers |
| Lo: 45°FLo: 7°C | Hi: 55°FHi: 13°C | Lo: 49°FLo: 9°C | Hi: 61°FHi: 16°C | Lo: 51°FLo: 11°C | Hi: 61°FHi: 16°C | Lo: 55°FLo: 13°C | Hi: 61°FHi: 16°C | Lo: 49°FLo: 9°C | Hi: 55°FHi: 13°C | Lo: 41°FLo: 5°C | Hi: 51°FHi: 11°C |
| POP: 30% | POP: 50% | POP: 20% | POP: 70% | POP: 90% | POP: 70% | POP: 70% | POP: 50% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1109 PM CDT Thu Oct 29 2026 
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Issued: 1058 PM CDT Thu Oct 29 2026
Key Messages
- Low chance (20-25%) very patchy fog is may form late tonight into Friday morning. Mainly along river valleys and east of I-29.
- Showers and very isolated thunderstorms will be possible Friday night into Saturday morning, mainly near and east of Highway 81. Drizzle and spotty showers will be possible west of Highway 81.
- More widespread rain returns later Sunday night into Monday. The EC/GFS and Canadian ensembles suggest about a 40-70 percent for more than an inch of rain.
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