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Herren Dam, SD Weather Forecast
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Herren Dam Weather Forecast
| TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY |
 |  |  |  | |  | | | | | | |
| Chance of Showers | Clearing | Partly Cloudy | Chance of Snow | Chance of Snow | Rain and Snow | Rain and Snow | Partly Cloudy | Chance of Rain | Clearing | Partly Cloudy | Clearing |
| Lo: 39°FLo: 4°C | Hi: 51°FHi: 11°C | Lo: 31°FLo: -1°C | Hi: 49°FHi: 9°C | Lo: 30°FLo: -1°C | Hi: 45°FHi: 7°C | Lo: 29°FLo: -2°C | Hi: 51°FHi: 11°C | Lo: 35°FLo: 2°C | Hi: 55°FHi: 13°C | Lo: 29°FLo: -2°C | Hi: 51°FHi: 11°C |
| POP: 20% | POP: 40% | POP: 50% | POP: 60% | POP: 30% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 542 PM MDT Fri Oct 23 2026 
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Issued: 517 PM MDT Fri Oct 23 2026
Key Messages
- Later tonight, gusty northwest winds wind gusts around 40 to 50 mph are likely as a front tracks through.
- Much cooler this weekend with chances for light rain and possibly snow for parts of the western CWA Saturday night into Sunday morning and again Sunday night into Monday morning.
Discussion
...(This Evening Through Friday) Issued at 102 PM MDT Fri Oct 23 2026
Big changes are on the way to the area tonight. An area of low pressure tracking northeast west of the CWA will be the big so...