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Gretna, SD
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7-Day Forecast
Overnight
Mostly Cloudy
Low: 18°
Mostly cloudy with a low around 18. Northeast wind around 9 mph.
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Saturday
Cloudy
High: 30°
Cloudy with a high near 30. East wind 9 to 14 mph with gusts as high as 22 mph.
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Saturday Night
Cloudy
Low: 25°
Cloudy with a steady temperature around 25. East wind 6 to 14 mph becoming north after midnight. Winds could gust as high as 23 mph.
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Sunday
Mostly Cloudy then Partly Sunny and Blustery
High: 31°
Mostly cloudy with a high near 31. Blustery with a northwest wind 8 to 13 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 29 mph.
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Sunday Night
Mostly Cloudy and Blustery
Low: 10°
Mostly cloudy with a low around 10. Blustery with a northwest wind 18 to 20 mph with gusts as high as 28 mph.
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Monday
Sunny and Blustery
High: 21°
Sunny with a high near 21. Blustery with a northwest wind 13 to 21 mph with gusts as high as 30 mph.
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Monday Night
Mostly Clear
Low: 3°
Mostly clear with a low around 3. Northwest wind 6 to 9 mph becoming east northeast after midnight.
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Tuesday
Mostly Sunny
High: 22°
Mostly sunny with a high near 22. East southeast wind 7 to 10 mph.
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Tuesday Night
Mostly Cloudy
Low: 9°
Mostly cloudy with a low around 9. East wind 7 to 9 mph.
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Wednesday
Mostly Sunny
High: 26°
Mostly sunny with a high near 26.
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Wednesday Night
Mostly Cloudy
Low: 7°
Mostly cloudy with a low around 7.
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Thanksgiving Day
Mostly Sunny
High: 18°
Mostly sunny with a high near 18.
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Thursday Night
Partly Cloudy
Low: 1°
Partly cloudy with a low around 1.
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Friday
Partly Sunny
High: 16°
Partly sunny with a high near 16.
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Source: National Weather Service
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