Weather WorldWilmarth Lake, SD Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Wilmarth Lake Weather Forecast
| TODAY | TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT |
 |  |  |  |  |  |  | | |  | | |
| Clearing | Chance of Showers | Chance of Showers | Chance of T-Storm | Chance of T-Storm | Partly Cloudy | Mostly Sunny | Partly Cloudy | Chance of Showers | Mostly Cloudy | Mostly Sunny | Chance of Showers |
| Hi: 71°FHi: 22°C | Lo: 51°FLo: 11°C | Hi: 69°FHi: 21°C | Lo: 55°FLo: 13°C | Hi: 75°FHi: 24°C | Lo: 51°FLo: 11°C | Hi: 69°FHi: 21°C | Lo: 51°FLo: 11°C | Hi: 70°FHi: 21°C | Lo: 51°FLo: 11°C | Hi: 75°FHi: 24°C | Lo: 55°FLo: 13°C |
| POP: 30% | POP: 20% | POP: 70% | POP: 90% | POP: 40% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 514 AM CDT Sat Sep 12 2026 
Wilmarth Lake Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Wilmarth Lake Weather Map
Wilmarth Lake Quick Facts
Wilmarth Lake Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 425 AM CDT Sat Sep 12 2026
Key Messages
- Scattered showers will be possible on Sunday with mainly light accumulations.
- More widespread chances for showers and storms are expected from Sunday night into Monday. While severe weather is not expected, beneficial rainfall is expected especially along and east of I-29.
- Near to below normal temperatures will continue with highs mainly in the upper 60s to 70s.
Discussion
... Issued at 207 PM CDT Fri Sep 11 2026
Today winds will be southerly and strong, gusting to 30-40 mph with areas ...