Harmon Lake, IA Weather Forecast
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Harmon Lake Weather Forecast
| REST OF TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY |
| Mostly Clear | Sunny | Clear | Sunny | Mostly Clear | Sunny | Mostly Clear | Sunny | Partly Cloudy | Mostly Sunny | Partly Cloudy | Mostly Sunny |
| Lo: 45°FLo: 7°C | Hi: 69°FHi: 21°C | Lo: 41°FLo: 5°C | Hi: 69°FHi: 21°C | Lo: 51°FLo: 11°C | Hi: 75°FHi: 24°C | Lo: 51°FLo: 11°C | Hi: 70°FHi: 21°C | Lo: 50°FLo: 10°C | Hi: 69°FHi: 21°C | Lo: 49°FLo: 9°C | Hi: 69°FHi: 21°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 158 AM CDT Sun Oct 04 2026 

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Issued: 145 AM CDT Sun Oct 4 2026
Key Messages
- Dry conditions are expected to remain over the next several days, with a slow warming trend through the first part of the upcoming work week.
- A few periods with overnight/early morning fog are possible.
Aviation
/06Z TAFS THROUGH 06Z MONDAY/... Issued at 1105 PM CDT Sat Oct 3 2026
VFR conditions will continue through the entire TAF period. Much of the clouds have moved eastward out of the TAF sites except for a FEW/SCT mid-upper level clouds that are lingering around at KMCW and KALO. W...
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