Shamrock, IN 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 |
| Clear | Sunny | Clear | Sunny | Clear | Mostly Sunny | Mostly Clear | Mostly Sunny | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy |
| Lo: 40°FLo: 4°C | Hi: 70°FHi: 21°C | Lo: 45°FLo: 7°C | Hi: 71°FHi: 22°C | Lo: 41°FLo: 5°C | Hi: 70°FHi: 21°C | Lo: 45°FLo: 7°C | Hi: 71°FHi: 22°C | Lo: 49°FLo: 9°C | Hi: 75°FHi: 24°C | Lo: 49°FLo: 9°C | Hi: 69°FHi: 21°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 142 AM CDT Wed Oct 21 2026 

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Issued: 322 AM EDT Wed Oct 21 2026
Key Messages
- Dense fog is expected this morning, particularly along and east of Interstate 69. More patchy fog is possible tonight with the greatest chances across northeast Indiana and northwest Ohio. Some locally dense fog is possible again early Thursday morning.
- Dry weather will continue through the weekend with temperatures slightly above normal. Temperatures are expected to cool to slightly below normal by next Tuesday and Wednesday.
Discussion
... Issued at 320 AM EDT Wed Oct 21 2026
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