Storm Lake, IA Weather Forecast
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Storm Lake Weather Forecast
| TODAY | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT |
| Sunny | Partly Cloudy | Sunny | Clearing | Sunny | Partly Cloudy | Mostly Sunny | Mostly Cloudy | Chance of Showers | Chance of Showers | Mostly Sunny | Partly Cloudy |
| Hi: 70°FHi: 21°C | Lo: 49°FLo: 9°C | Hi: 75°FHi: 24°C | Lo: 49°FLo: 9°C | Hi: 75°FHi: 24°C | Lo: 55°FLo: 13°C | Hi: 71°FHi: 22°C | Lo: 59°FLo: 15°C | Hi: 71°FHi: 22°C | Lo: 50°FLo: 10°C | Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C |
| POP: 40% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 549 AM CDT Tue Oct 20 2026 

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Issued: 619 AM CDT Tue Oct 20 2026
Key Messages
- Very isolated river valley fog will lead to visibility below two miles at times into the morning commute.
- Above to well above average temperatures continue. Highs in the upper 60s and 70s and lows in the 40s and 50s. Average highs for mid/late October are upper 50s to lower 60s, with average lows in the mid to upper 30s.
- Dry conditions are expected through Thursday evening. Low (25% or less) rain chances return Friday morning with more widespread and higher chances (around 50%) this ...
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