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Sioux County, IA Weather Forecast
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Sioux County Weather Forecast
| TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY |
 | |  |  |  | | |  |  |  | | |
| Patchy Fog | Patchy Fog | Chance of Showers | Chance of T-Storm | Showers | Showers | Chance of Showers | Mostly Cloudy | Mostly Clear | Sunny | Mostly Clear | Mostly Sunny |
| Lo: 60°FLo: 16°C | Hi: 71°FHi: 22°C | Lo: 60°FLo: 16°C | Hi: 69°FHi: 21°C | Lo: 59°FLo: 15°C | Hi: 69°FHi: 21°C | Lo: 55°FLo: 13°C | Hi: 61°FHi: 16°C | Lo: 45°FLo: 7°C | Hi: 61°FHi: 16°C | Lo: 49°FLo: 9°C | Hi: 61°FHi: 16°C |
| POP: 40% | POP: 100% | POP: 70% | POP: 70% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 209 PM CDT Sun Sep 27 2026 
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Issued: 100 PM CDT Sun Sep 27 2026
Key Messages
- Coverage of drizzle should continue to decrease through the afternoon, but low level moisture may continue to produce isolated sprinkles or drizzle through tonight.
- Greater chances for showers and a few thunderstorms Monday night into Tuesday. Pockets of heavier rainfall will again be the primary concern.
Discussion
... Issued at 257 PM CDT Sat Sep 26 2026
The area of steady moderate rain that impacted the area this morning is exiting off to our northeast; however, patchy drizzle contin...