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Roy Lake, SD 7-Day Night Weather Forecast
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Roy Lake, SD Weather Forecast
Roy Lake, SD Weather Forecast Date: 206 AM CDT Sun Aug 30 2026
The area/counties/county of: Marshall, including the city of Britton.or toggle through each period.
Rest of Tonight... Cloudy with a 50% chance of thunderstorms. Near steady temperature in the upper 60s. East winds 5 to 10 mph with gusts up to 25 mph.
Sunday... Mostly cloudy in the morning, then becoming partly sunny. Humid with highs in the lower 80s. East winds 10 to 15 mph with gusts up to 25 mph.
Sunday Night... Mostly cloudy with a chance of thunderstorms in the evening, then partly cloudy with a slight chance of thunderstorms after midnight. Humid with lows around 60. Southeast winds 5 to 10 mph, becoming northwest after midnight. Chance of rain 50%.
Monday... Mostly sunny. Highs around 80. West winds 5 to 10 mph.
Monday Night... Partly cloudy. Lows in the upper 50s. Southwest winds 5 to 10 mph.
Tuesday... Partly sunny. Highs around 80.
Tuesday Night... A chance of showers in the evening. Mostly cloudy with a slight chance of thunderstorms. Lows in the lower 60s. Chance of rain 50%.
Wednesday... Partly sunny. Highs around 80.
Wednesday Night... Mostly clear in the evening, then becoming partly cloudy. A slight chance of thunderstorms. A chance of showers after midnight. Lows in the lower 60s. Chance of rain 30%.
Thursday... Partly sunny. Highs in the lower 80s.
Thursday Night... Mostly clear. Lows in the mid 60s. Highs in the mid 80s.
Friday... Mostly clear. Lows in the mid 60s. Highs in the mid 80s.
Friday Night... Mostly clear. A slight chance of thunderstorms after midnight. Lows in the mid 60s. Chance of rain 20%.
POP = Probability of Precipitation
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