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Osterdock, IA Weather Forecast
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Osterdock Weather Forecast
| TODAY | TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT |
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| Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of Showers | Chance of Showers | Chance of Showers | Mostly Cloudy | Mostly Cloudy | Partly Cloudy | Partly Cloudy | Mostly Cloudy |
| Hi: 70°FHi: 21°C | Lo: 60°FLo: 16°C | Hi: 71°FHi: 22°C | Lo: 59°FLo: 15°C | Hi: 65°FHi: 18°C | Hi: 61°FHi: 16°C Lo: 51°FLo: 11°C | Hi: 61°FHi: 16°C Lo: 51°FLo: 11°C | Hi: 61°FHi: 16°C Lo: 49°FLo: 9°C | Hi: 61°FHi: 16°C Lo: 49°FLo: 9°C | Hi: 65°FHi: 18°C Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C Lo: 45°FLo: 7°C | Hi: 69°FHi: 21°C Lo: 49°FLo: 9°C |
| POP: 100% | POP: 100% | POP: 70% | POP: 70% | POP: 70% | POP: 50% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 636 AM CDT Fri Sep 18 2026 
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Issued: 546 AM CDT Fri Sep 18 2026
Key Messages
- Widespread rainfall is expected Friday into Saturday, heavy at times, with totals around 1-4 inches expected, amounts of 5+ inches possible (5-15%, mainly in NE IA), and amounts up to around 7" cannot be ruled out. Localized flooding and river rises are expected where the heaviest rainfall occurs. While the location of the heaviest rainfall remains uncertain, confidence in occurrence was high enough (50%) to issue a Flood Watch including areas along and south of I-90 and north of US ...