Weather WorldTwomile Lake, SD Weather Forecast
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Twomile Lake Weather Forecast
| TODAY | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SUNDAY | SUNDAY NIGHT | LABOR DAY |
 |  |  |  | |  | | |  | | |  |
| Mostly Cloudy | Chance of Showers | Mostly Sunny | Chance of T-Storm | Mostly Sunny | Mostly Clear | Mostly Clear | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of Showers |
| Hi: 79°FHi: 26°C | Lo: 59°FLo: 15°C | Hi: 81°FHi: 27°C | Lo: 65°FLo: 18°C | Hi: 85°FHi: 29°C | Hi: 89°FHi: 32°C Lo: 65°FLo: 18°C | Hi: 89°FHi: 32°C Lo: 65°FLo: 18°C | Hi: 85°FHi: 29°C Lo: 69°FLo: 21°C | Hi: 85°FHi: 29°C Lo: 69°FLo: 21°C | Hi: 85°FHi: 29°C Lo: 69°FLo: 21°C | Lo: 60°FLo: 16°C | Hi: 75°FHi: 24°C |
| POP: 50% | POP: 20% | POP: 20% | POP: 20% | POP: 20% | POP: 40% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 331 AM CDT Tue Sep 01 2026 
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Issued: 157 AM CDT Tue Sep 1 2026
Key Messages
- Showers move through the area today and tonight. The probability of 1" of moisture is about 30% across central South Dakota, with about a 30-40% chance for 1/4" for northeast South Dakota. The least amount of moisture is expected across north central South Dakota.
- There is a marginal (1 of 5) and slight risk (2 of 5) in place along and south of Highway 212 from Pierre east. The main threats are high winds (60 to 75 mph) and large hail (around golf-ball sized) in the highlighted area. ...