Weather forecast for: Storm Lake IA
Last Update: 1:33 am CDT Aug 30, 2026
Overnight: A 10 percent chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 72. South southwest wind around 10 mph, with gusts as high as 20 mph.
Sunday: A slight chance of showers and thunderstorms between 2pm and 4pm. Mostly sunny, with a high near 91. South southwest wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Sunday Night: Mostly cloudy, with a low around 72. South wind 5 to 10 mph.
Monday: A 20 percent chance of showers and thunderstorms after 1pm. Increasing clouds, with a high near 89. West wind around 5 mph becoming east in the afternoon.
Monday Night: A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 68. East southeast wind around 5 mph becoming calm.
Tuesday: A 20 percent chance of showers and thunderstorms before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 89. North wind around 5 mph becoming southeast in the afternoon.
Tuesday Night: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Wednesday: Mostly sunny, with a high near 89.
Wednesday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 69.
Thursday: Mostly sunny, with a high near 89.
Thursday Night: Partly cloudy, with a low around 69.
Friday: Mostly sunny, with a high near 89.
Friday Night: Partly cloudy, with a low around 68.
Saturday: Mostly sunny, with a high near 88.
WeatherWorld.com
