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Case Lake, IA Weather Forecast
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Case Lake Weather Forecast
| TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY |
 |  | | |  |  |  | | | | | |
| Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of Showers | Sunny | Mostly Clear | Sunny | Mostly Clear | Sunny | Mostly Clear | Sunny |
| Lo: 69°FLo: 21°C | Hi: 71°FHi: 22°C | Lo: 61°FLo: 16°C | Hi: 65°FHi: 18°C | Lo: 51°FLo: 11°C | Hi: 65°FHi: 18°C | Lo: 49°FLo: 9°C | Hi: 65°FHi: 18°C | Lo: 51°FLo: 11°C | Hi: 65°FHi: 18°C | Lo: 49°FLo: 9°C | Hi: 61°FHi: 16°C |
| POP: 80% | POP: 80% | POP: 100% | POP: 70% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 727 PM CDT Tue Sep 29 2026 
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Issued: 642 PM CDT Tue Sep 29 2026
Key Messages
- Ongoing showers and thunderstorms will prime the area through the remainder of the afternoon into the late evening.
- Widespread, prolonged period of rainfall expected over Iowa from tonight through Wednesday and Thursday. Rainfall amounts of 2 to 4 inches likely, with higher amounts possible in areas that see less breaks from the rain. Flooding and flash flooding will be possible.
- Rainfall chances ending north and northwest on Thursday, ending in the south Friday morning. Cooler and d...