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Johnson Lake, SD 7-Day Weather Forecast
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Johnson Lake Weather Forecast
Johnson Lake, SD Weather Forecast Date: 234 AM CDT Fri Sep 18 2026
Weather forecast for Johnson Lake, SD
Today Hi: 61°FHi: 16°C Lo: 55°F Lo: 13°C |
Today... Patchy fog this morning. Showers with a chance of thunderstorms this morning, then a chance of showers this afternoon. Near steady temperature in the lower 60s. East winds 15 to 20 mph with gusts up to 30 mph. Chance of rain near 100%. |
Sat Hi: 61°FHi: 16°C Lo: 51°F Lo: 11°C |
Saturday... Cloudy. Highs in the lower 60s. Northeast winds 10 to 15 mph with gusts up to 25 mph. |
Sun Hi: 65°FHi: 18°C Lo: 49°F Lo: 9°C |
Sunday... Mostly cloudy with a 20% chance of showers. Highs in the mid 60s. Northeast winds 15 to 20 mph with gusts up to 30 mph. |
| Mon Hi: 59°FHi: 15°C Lo: 45°F Lo: 7°C |
Monday... Mostly cloudy. A chance of showers in the morning. Highs in the upper 50s. Chance of rain 50%. |
Tue Hi: 61°FHi: 16°C Lo: 45°F Lo: 7°C |
Tuesday... Mostly sunny. Highs in the lower 60s. |
Wed Hi: 65°FHi: 18°C Lo: 49°F Lo: 9°C |
Wednesday... Partly sunny. Highs in the mid 60s. |
| Thu Hi: 69°FHi: 21°C |
Thursday... Mostly sunny. Highs in the upper 60s. |
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