Mark, IA Weather Forecast
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| REST OF TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY |
| Partly Cloudy | Mostly Sunny | Partly Cloudy | Mostly Cloudy | Chance of Showers | Chance of Showers | Chance of Showers | Showers | Chance of T-Storm | Chance of Showers | Partly Cloudy | Mostly Sunny |
| Lo: 50°FLo: 10°C | Hi: 70°FHi: 21°C | Lo: 55°FLo: 13°C | Hi: 70°FHi: 21°C | Lo: 59°FLo: 15°C | Hi: 69°FHi: 21°C | Lo: 59°FLo: 15°C | Hi: 65°FHi: 18°C | Lo: 59°FLo: 15°C | Hi: 71°FHi: 22°C | Lo: 60°FLo: 16°C | Hi: 75°FHi: 24°C |
| POP: 20% | POP: 50% | POP: 50% | POP: 70% | POP: 50% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 128 AM CDT Wed Sep 23 2026 

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Issued: 214 AM CDT Wed Sep 23 2026
Key Messages
- Sunny and cool today.
- Showers and thunderstorms return Thursday in western Iowa, expanding across much of Iowa Friday and Saturday. Severe storms are not anticipated but pockets of heavier rain are possible.
Aviation
/06Z TAFS THROUGH 06Z THURSDAY/... Issued at 1054 PM CDT Tue Sep 22 2026
The cloud deck has generally continued to move westward as the night has progressed leading to VFR conditions at the three eastern TAF sites. KDSM and KFOD are situated in lower ceilings with the westw...
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