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Foster, SD 7-Day Weather Forecast
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Foster Weather Forecast
Foster, SD Weather Forecast Date: 1012 AM CDT Tue Sep 08 2026
Weather forecast for Foster, SD
Today Hi: 81°FHi: 27°C Lo: 55°F Lo: 13°C |
Rest of Today... Mostly sunny. Highs in the lower 80s. Northwest winds 15 to 20 mph with gusts up to 30 mph. |
| Wed Hi: 75°FHi: 24°C Lo: 51°F Lo: 11°C |
Wednesday... Mostly sunny. Highs in the mid 70s. Northwest winds 15 to 20 mph with gusts up to 30 mph. |
| Thu Hi: 85°FHi: 29°C Lo: 59°F Lo: 15°C |
Thursday... Sunny, warmer with highs in the mid 80s. South winds 10 to 15 mph with gusts up to 25 mph. |
Fri Hi: 81°FHi: 27°C Lo: 49°F Lo: 9°C |
Friday... Partly sunny and breezy. Highs in the lower 80s. |
| Sat Hi: 69°FHi: 21°C Lo: 45°F Lo: 7°C |
Saturday... Partly sunny. Not as warm with highs in the upper 60s. |
Sun Hi: 61°FHi: 16°C Lo: 45°F Lo: 7°C |
Sunday... Mostly cloudy in the morning, then becoming partly sunny. A 50% chance of showers. Breezy with highs in the lower 60s. |
| Mon Hi: 61°FHi: 16°C |
Monday... Partly sunny. A chance of showers, mainly in the morning. Highs in the lower 60s. Chance of rain 50%. |
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