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Portsmouth, IA
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7-Day Forecast
Tonight
Partly Cloudy
Low: 18°
Partly cloudy with a low around 18. South southwest wind 5 to 7 mph.
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Sunday
Sunny
High: 37°
Sunny with a high near 37. Southwest wind 5 to 8 mph.
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Sunday Night
Mostly Cloudy
Low: 27°
Mostly cloudy with a low around 27. South southwest wind 5 to 8 mph.
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Monday
Mostly Sunny
High: 45°
Mostly sunny with a high near 45. West wind 5 to 7 mph.
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Monday Night
Partly Cloudy
Low: 28°
Partly cloudy with a low around 28. West northwest wind 5 to 7 mph.
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Tuesday
Mostly Sunny
High: 52°
Mostly sunny with a high near 52. West northwest wind 5 to 7 mph becoming south in the afternoon.
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Tuesday Night
Chance Rain
Low: 35°
A 30% chance of rain. Partly cloudy with a low around 35. South wind 7 to 10 mph becoming northwest after midnight. Winds could gust as high as 17 mph.
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Wednesday
Mostly Sunny
High: 49°
Mostly sunny with a high near 49. Northwest wind 10 to 16 mph with gusts as high as 23 mph.
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Wednesday Night
Partly Cloudy
Low: 28°
Partly cloudy with a low around 28. North northwest wind 6 to 10 mph becoming west after midnight.
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Thursday
Sunny
High: 53°
Sunny with a high near 53. Northwest wind 7 to 14 mph with gusts as high as 20 mph.
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Thursday Night
Mostly Clear
Low: 29°
Mostly clear with a low around 29. Northwest wind 6 to 8 mph becoming south in the evening.
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Friday
Mostly Sunny
High: 58°
Mostly sunny with a high near 58. South wind 8 to 17 mph becoming west in the afternoon. Winds could gust as high as 24 mph.
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Friday Night
Partly Cloudy
Low: 29°
Partly cloudy with a low around 29. West northwest wind around 11 mph with gusts as high as 20 mph.
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Saturday
Sunny
High: 44°
Sunny with a high near 44. North northwest wind 9 to 15 mph with gusts as high as 22 mph.
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Source: National Weather Service
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