Folsom, SD Weather Forecast
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Folsom Weather Forecast
| THIS AFTERNOON | TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT |
| Cloudy | Partly Cloudy | Mostly Cloudy | Mostly Cloudy | Chance of Showers | Clearing | Sunny | Clear | Partly Cloudy | Chance of T-Storm | Chance of Showers | Chance of T-Storm |
| Hi: 80°FHi: 27°C | Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°C | Lo: 51°FLo: 11°C | Hi: 71°FHi: 22°C | Lo: 51°FLo: 11°C | Hi: 79°FHi: 26°C | Lo: 51°FLo: 11°C | Hi: 75°FHi: 24°C | Lo: 55°FLo: 13°C | Hi: 71°FHi: 22°C | Lo: 49°FLo: 9°C |
| POP: 30% | POP: 30% | POP: 50% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1233 PM MDT Wed Sep 23 2026 

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Issued: 108 PM MDT Wed Sep 23 2026
Key Messages
- Isolated strong/severe thunderstorms possible through early this evening
- Southwest flow aloft expected through the weekend with showers/thunderstorms possible late Thursday/Friday
- Upper trough moves through for early next week bring increasing precipitation chances Sunday night into early next week
- Temperatures will be 5-10F above normal through the weekend and then back to seasonal readings early next week
Discussion
...(This Evening Through Wednesday) Issued at 100 PM MDT Wed Sep 23 ...
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