Decorah, IA Weather - Tomorrow’s Forecast

Tuesday

Fog in some areas

High:
89°F

Areas of fog before 9am. Otherwise, partly sunny, with a high near 89. Heat index values as high as 97. Calm wind becoming southeast around 5 mph in the afternoon.

Tuesday Night

Scattered thunderstorms

Overnight low:
73°F

Scattered showers and thunderstorms. Mostly cloudy, with a low around 73. Southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.