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Summit Reservoir, SD Weather Forecast
Summit Reservoir, SD Weather Forecast Date: 122 PM CDT Tue Oct 06 2026
The area/counties/county of: Lyman, including the city of Kennebec.or toggle through each period.
This Afternoon... Sunny. Highs in the mid 80s. Northwest winds 10 to 15 mph.
Tonight... Mostly clear. Lows in the upper 40s. Northwest winds 5 to 10 mph.
Wednesday... Partly sunny. Highs in the upper 70s. Northwest winds 5 to 10 mph with gusts up to 20 mph.
Wednesday Night... Mostly cloudy. Lows in the upper 40s. North winds 5 to 10 mph, becoming northeast after midnight.
Thursday... Partly sunny. Highs in the lower 70s. Southeast winds 10 to 15 mph with gusts up to 25 mph.
Thursday Night... Partly cloudy. Lows in the lower 50s.
Friday... Mostly clear and breezy. Highs in the mid 80s. Lows in the lower 60s.
Saturday... Mostly clear and breezy. Highs in the mid 80s. Lows in the lower 60s.
Saturday Night... Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 50s.
Sunday... Partly sunny. Not as warm with highs in the mid 60s.
Sunday Night... Mostly cloudy. A 40% chance of showers. Lows in the mid 40s. Highs in the mid 50s.
POP = Probability of Precipitation
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