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Sylvan Lake Weather Forecast
Sylvan Lake, SD Weather Forecast Date: 250 PM MDT Sun Aug 09 2026
Weather forecast for Sylvan Lake, SD
Late Today Hi: 81°FHi: 27°C Lo: 60°F Lo: 16°C |
Late This Afternoon... Mostly sunny. Widespread smoke. Near steady temperature in the lower 80s. Southeast winds 10 to 15 mph with gusts up to 25 mph. |
Mon Hi: 89°FHi: 32°C Lo: 60°F Lo: 16°C |
Monday... Partly cloudy. Areas of smoke. A slight chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Northeast winds around 5 mph, becoming south with gusts up to 25 mph in the afternoon. Chance of rain 20%. |
| Tue Hi: 85°FHi: 29°C Lo: 59°F Lo: 15°C |
Tuesday... Partly cloudy. Areas of smoke. A chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. East winds 5 to 10 mph. Gusts up to 20 mph in the afternoon. Chance of rain 30%. |
| Wed Hi: 79°FHi: 26°C Lo: 55°F Lo: 13°C |
Wednesday... Partly cloudy in the morning, then mostly cloudy with showers and thunderstorms likely in the afternoon. Highs in the upper 70s. Chance of rain 60%. |
| Thu Hi: 65°FHi: 18°C Lo: 51°F Lo: 11°C |
Thursday... Showers likely in the morning, then showers with a chance of thunderstorms in the afternoon. Highs in the mid 60s. Chance of rain 80%. |
| Fri Hi: 69°FHi: 21°C Lo: 51°F Lo: 11°C |
Friday... Showers likely in the morning, then showers with a chance of thunderstorms in the afternoon. Highs in the upper 60s. Chance of rain 80%. |
| Sat Hi: 70°FHi: 21°C Lo: 51°F Lo: 11°C |
Saturday... Partly cloudy. A chance of showers in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs around 70. Chance of rain 70%. |
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