52101 Weather (Decorah, IA)

Weather forecast for: Decorah IA

Last Update: 8:47 am CDT Sep 8, 2026

Today: A chance of showers and thunderstorms before 3pm, then a slight chance of showers between 3pm and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 81. South wind 9 to 13 mph. Chance of precipitation is 30%.

Tonight: Showers and thunderstorms, mainly before 1am. Low around 66. Southwest wind 3 to 7 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Wednesday: Mostly cloudy through mid morning, then gradual clearing, with a high near 81. Calm wind becoming west 5 to 8 mph in the afternoon.

Wednesday Night: Mostly clear, with a low around 54. West wind around 5 mph becoming calm in the evening.

Thursday: Sunny, with a high near 78. Calm wind.

Thursday Night: Clear, with a low around 55. Light south wind.

Friday: Sunny, with a high near 80. South wind 5 to 15 mph, with gusts as high as 23 mph.

Friday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 62. South wind 9 to 14 mph becoming west after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 70%.

Saturday: A 30 percent chance of showers, mainly after 1pm. Mostly sunny, with a high near 78. Northwest wind 6 to 8 mph.

Saturday Night: A 30 percent chance of showers after 1am. Partly cloudy, with a low around 54. Calm wind.

Sunday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 73. Calm wind becoming east 5 to 9 mph in the morning.

Sunday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 55. East wind around 7 mph.

Monday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 74. East wind 8 to 11 mph becoming south in the afternoon. Winds could gust as high as 21 mph.