Merriam, IN Weather Forecast
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Merriam Weather Forecast
| TODAY | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT |
| Showers Likely | Chance of T-Storm | Chance of Showers | Chance of Showers | Sunny | Clear | Sunny | Clear | Mostly Sunny | Mostly Clear | Mostly Sunny | Mostly Clear |
| Hi: 65°FHi: 18°C | Lo: 55°FLo: 13°C | Hi: 55°FHi: 13°C | Lo: 35°FLo: 2°C | Hi: 55°FHi: 13°C | Lo: 35°FLo: 2°C | Hi: 61°FHi: 16°C | Lo: 39°FLo: 4°C | Hi: 65°FHi: 18°C | Lo: 41°FLo: 5°C | Hi: 69°FHi: 21°C | Lo: 41°FLo: 5°C |
| POP: 60% | POP: 70% | POP: 70% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 413 AM EDT Thu Oct 15 2026 

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Issued: 257 AM EDT Thu Oct 15 2026
Key Messages
- Scattered rain possible today, mainly west of I-69.
- There is a Marginal Risk of severe storms (mainly wind) along and south of US Route 24 this evening. Confidence in severe weather is low.
- Turning much cooler and windy for Friday with some lake effect rain showers expected. Watching for frost chances, which appear the most possible Sunday morning, but Saturday morning`s chances cannot be ruled out.
Discussion
... Issued at 245 AM EDT Thu Oct 15 2026
Surface high pressure slides eastwar...
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