Reliance, SD 7-Day Weather Forecast
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Reliance Weather Forecast


Reliance, SD Weather Forecast Date: 821 PM CDT Fri Sep 04 2026
Weather forecast for Reliance, SD
| Tonight Lo: 70°F Lo: 21°C |
Tonight... Partly cloudy with a slight chance of thunderstorms this evening, then mostly clear after midnight. Breezy with lows around 70. Southeast winds 15 to 25 mph. Gusts up to 40 mph this evening. Chance of rain 20%. Heat index values up to 100 early this evening. |
| Sat Hi: 99°FHi: 37°C Lo: 70°F Lo: 21°C |
Saturday... Mostly sunny. Hot with highs in the upper 90s. South winds 15 to 20 mph with gusts up to 30 mph. |
| Sun Hi: 91°FHi: 33°C Lo: 69°F Lo: 21°C |
Sunday... Partly sunny. A chance of showers, mainly in the morning. Hot with highs in the lower 90s. South winds 15 to 20 mph. Chance of rain 30%. |
| Labor Day Hi: 91°FHi: 33°C Lo: 69°F Lo: 21°C |
Labor Day... Showers likely in the morning. A chance of thunderstorms. Breezy, hot with highs in the lower 90s. Chance of rain 70%. |
| Tue Hi: 85°FHi: 29°C Lo: 60°F Lo: 16°C |
Tuesday... Partly sunny. Highs in the mid 80s. |
| Wed Hi: 81°FHi: 27°C Lo: 59°F Lo: 15°C |
Wednesday... Mostly clear. Lows around 60. Highs in the lower 80s. |
| Thu Hi: 81°FHi: 27°C Lo: 59°F Lo: 15°C |
Thursday... Partly cloudy with a 20% chance of showers. Lows in the upper 50s. Highs in the lower 80s. |
| Thu Hi: 81°FHi: 27°C Lo: 59°F Lo: 15°C |
Thursday... Partly cloudy with a 20% chance of showers. Lows in the upper 50s. Highs in the lower 80s. |
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