Weather WorldGrass Lake, SD 7-Day Weather Forecast
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Grass Lake Weather Forecast
Grass Lake, SD Weather Forecast Date: 211 AM CDT Sun Sep 13 2026
Weather forecast for Grass Lake, SD
Tonight Lo: 50°F Lo: 10°C |
Tonight... Mostly cloudy with a chance of sprinkles. Near steady temperature in the lower 50s. Northeast winds around 5 mph. |
Sun Hi: 70°FHi: 21°C Lo: 51°F Lo: 11°C |
Sunday... Mostly cloudy with a chance of sprinkles in the morning, then mostly sunny in the afternoon. Highs around 70. East winds around 5 mph. |
Mon Hi: 70°FHi: 21°C Lo: 49°F Lo: 9°C |
Monday... A slight chance of thunderstorms. Showers, breezy with highs around 70. South winds 20 to 25 mph with gusts up to 40 mph. Chance of rain near 100%. |
Tue Hi: 65°FHi: 18°C Lo: 49°F Lo: 9°C |
Tuesday... Mostly sunny. Highs in the mid 60s. |
Wed Hi: 65°FHi: 18°C Lo: 50°F Lo: 10°C |
Wednesday... Partly sunny. A slight chance of showers in the morning, then a chance of showers in the afternoon. Highs in the mid 60s. Chance of rain 30%. |
| Thu Hi: 71°FHi: 22°C Lo: 51°F Lo: 11°C |
Thursday... Mostly cloudy in the morning, then becoming partly sunny. Highs in the lower 70s. |
| Fri Hi: 71°FHi: 22°C Lo: 51°F Lo: 11°C |
Friday... Mostly cloudy. A chance of showers with a slight chance of thunderstorms. Lows in the lower 50s. Highs in the lower 70s. Chance of rain 40%. |
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