Weather forecast for: Clear Lake IA
Last Update: 3:06 am CDT Sep 2, 2026
Overnight: Showers likely and possibly a thunderstorm. Some of the storms could be severe. Mostly cloudy, with a steady temperature around 70. Northeast wind around 10 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday: A 30 percent chance of showers and thunderstorms, mainly before 9am. Some of the storms could produce heavy rainfall. Mostly cloudy, then gradually becoming sunny, with a high near 85. East wind around 5 mph becoming calm in the afternoon. New precipitation amounts in excess of 4 inches possible.
Wednesday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am. Increasing clouds, with a low around 69. Calm wind becoming south around 6 mph after midnight. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday: Showers and thunderstorms likely, mainly before 10am. Partly sunny, then gradually becoming sunny, with a high near 85. South wind 6 to 9 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night: A 50 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 70. South southeast wind around 8 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday: A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 88. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night: Partly cloudy, with a low around 70.
Saturday: Mostly sunny, with a high near 87.
Saturday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68.
Sunday: A 50 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 85.
Sunday Night: A 40 percent chance of showers. Partly cloudy, with a low around 66.
Labor Day: A 30 percent chance of showers. Partly sunny, with a high near 81.
Monday Night: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Tuesday: A 30 percent chance of showers. Partly sunny, with a high near 80.
WeatherWorld.com
