Oller, SD Weather Forecast
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Oller Weather Forecast
| TODAY | TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT |
| Chance of T-Storm | Partly Cloudy | Mostly Sunny | Mostly Clear | Mostly Sunny | Mostly Clear | Partly Sunny | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Partly Sunny | Chance of T-Storm |
| Hi: 81°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 89°FHi: 32°C | Lo: 61°FLo: 16°C | Hi: 89°FHi: 32°C | Lo: 61°FLo: 16°C | Hi: 81°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 81°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 89°FHi: 32°C | Lo: 65°FLo: 18°C |
| POP: 20% | POP: 50% | POP: 50% | POP: 20% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 651 AM CDT Wed Aug 19 2026 

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Issued: 612 AM CDT Wed Aug 19 2026
Key Messages
- A Marginal Risk (level 1 out of 5) for severe weather has been posted for portions of south central into northeast SD today. The main threats will be large hail to 1 inch in diameter and damaging winds of 60 mph.
- A Marginal Risk (level 1 out of 5) for severe weather has been issued for areas just south and east of the Watertown area Thursday afternoon. Large hail to 1 inch in diameter and damaging winds of 60 mph will be the main threats.
- After a dry cou...
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