Weather Forecast for
Portsmouth, IA

This Afternoon: Mostly sunny, with a high near 81. South southeast wind 9 to 11 mph, with gusts as high as 18 mph.

Tonight: A 30 percent chance of showers and thunderstorms, mainly between 2am and 4am. Partly cloudy, with a low around 69. Southeast wind 10 to 14 mph, with gusts as high as 21 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Sunday: Sunny, with a high near 88. South wind 6 to 11 mph, with gusts as high as 18 mph.

Sunday Night: Increasing clouds, with a low around 70. East wind 5 to 8 mph.

Monday: Mostly sunny, with a high near 86. East wind 7 to 9 mph becoming south in the afternoon.

Monday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71. Southeast wind 5 to 7 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tuesday: A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 87. South wind around 7 mph.

Tuesday Night: A chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 68. East wind 3 to 6 mph.

Wednesday: Partly sunny, with a high near 83. East wind 5 to 8 mph.

Wednesday Night: A chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 65. East northeast wind around 6 mph.

Thursday: A chance of showers and thunderstorms. Cloudy, with a high near 75. East northeast wind 6 to 8 mph.

Thursday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. East wind around 7 mph.

Friday: A chance of showers and thunderstorms. Partly sunny, with a high near 72. East southeast wind 7 to 10 mph, with gusts as high as 17 mph.

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