Weather WorldSummit Lake, SD 7-Day Weather Forecast
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Summit Lake Weather Forecast
Summit Lake, SD Weather Forecast Date: 736 PM CDT Fri Aug 07 2026
Weather forecast for Summit Lake, SD
Tonight Lo: 55°F Lo: 13°C |
Tonight... Mostly clear this evening, then becoming mostly cloudy. Lows in the mid 50s. Northwest winds 5 to 10 mph, becoming southwest after midnight. |
Sat Hi: 81°FHi: 27°C Lo: 61°F Lo: 16°C |
Saturday... Partly sunny. A slight chance of thunderstorms in the afternoon. Highs in the lower 80s. South winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 20%. |
Sun Hi: 79°FHi: 26°C Lo: 60°F Lo: 16°C |
Sunday... Partly sunny. Humid with highs in the upper 70s. Northeast winds 5 to 10 mph with gusts up to 20 mph. |
| Mon Hi: 79°FHi: 26°C Lo: 61°F Lo: 16°C |
Monday... Partly sunny. Highs in the upper 70s. |
| Tue Hi: 79°FHi: 26°C Lo: 55°F Lo: 13°C |
Tuesday... Mostly cloudy with a slight chance of thunderstorms in the morning, then partly sunny in the afternoon. Highs in the upper 70s. Chance of rain 20%. |
Wed Hi: 75°FHi: 24°C Lo: 55°F Lo: 13°C |
Wednesday... Partly cloudy. Highs in the mid 70s. Lows in the mid 50s. |
| Thu Hi: 71°FHi: 22°C Lo: 55°F Lo: 13°C |
Thursday... Partly sunny. Highs in the lower 70s. |
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