County Forecast for Fort Atkinson , IA
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131800-
Winneshiek-
Including the city of Decorah
532 AM CDT Wed May 13 2026

Today   Mostly sunny. Highs in the upper 60s. North winds 10 to 15 mph.
Tonight   Clear. Lows in the lower 40s. North winds 5 to 10 mph, becoming southeast after midnight.
Thursday   Mostly sunny. Highs in the mid 70s. South winds 10 to 20 mph.
Thursday night   Warmer. Mostly cloudy with a chance of showers. Lows in the mid 50s. South winds 10 to 15 mph. Chance of rain 50 percent.
Friday   Warmer. Mostly sunny. Highs in the mid 80s. Southwest winds 10 to 15 mph.
Friday night   Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 50s.
Saturday   Mostly sunny. Highs in the mid 80s.
Saturday night   Showers likely. Lows in the mid 50s. Chance of rain 60 percent.
Sunday and sunday night   Showers likely and a chance of thunderstorms. Highs around 80. Lows around 60. Chance of rain 70 percent.
Monday   Breezy. Showers likely and a chance of thunderstorms. Highs in the upper 70s. Chance of rain 60 percent.
Monday night   Showers likely. Lows in the lower 50s. Chance of rain 60 percent.
Tuesday   Partly sunny. Highs in the upper 60s.
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DTN Weather Summary

Bryce Anderson image
Bryce Anderson – DTN Meteorologist
System Moving Into Canadian Prairies, Northern Plains Wednesday
Posted at 5:34AM Wed May 13, 2026 CDT
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