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Frost School, SD Weather Forecast
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Frost School Weather Forecast
| OVERNIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY |
 |  |  |  | | |  |  | | | |  |
| Mostly Clear | Chance of T-Storm | Chance of T-Storm | Sunny | Chance of T-Storm | Sunny | Partly Cloudy | Mostly Cloudy | Chance of T-Storm | Mostly Cloudy | Partly Cloudy | Clearing |
| Lo: 59°FLo: 15°C | Hi: 85°FHi: 29°C | Lo: 60°FLo: 16°C | Hi: 85°FHi: 29°C | Lo: 61°FLo: 16°C | Hi: 81°FHi: 27°C | Lo: 59°FLo: 15°C | Hi: 79°FHi: 26°C | Lo: 61°FLo: 16°C | Hi: 81°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 85°FHi: 29°C |
| POP: 20% | POP: 20% | POP: 20% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1149 PM CDT Wed Aug 19 2026 
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Frost School Forecast Discussion
Issued: 102 AM CDT Thu Aug 20 2026
Key Messages
- Patchy fog continues to develop early this morning. Dense fog is be possible with visibilities less than 1 mile especially along the Highway 20 corridor and into northwest Iowa.
- Isolated to widely scattered thunderstorms possible late Thursday afternoon and evening. 2-inch hail and 70 mph winds will be the primary risk.
- Warmer temperatures continue on Friday, with another very conditional risk for thunderstorms in the afternoon and evening.
- Slightly cool...