Lancaster, IN Weather Forecast
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Lancaster Weather Forecast
| TODAY | TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT |
| Chance of T-Storm | Chance of T-Storm | Mostly Sunny | Chance of T-Storm | Mostly Sunny | Mostly Clear | Sunny | Mostly Clear | Sunny | Mostly Clear | Chance of T-Storm | Chance of T-Storm |
| Hi: 80°FHi: 27°C | Lo: 69°FLo: 21°C | Hi: 85°FHi: 29°C | Lo: 61°FLo: 16°C | Hi: 79°FHi: 26°C | Lo: 61°FLo: 16°C | Hi: 91°FHi: 33°C | Lo: 69°FLo: 21°C | Hi: 91°FHi: 33°C | Lo: 70°FLo: 21°C | Hi: 89°FHi: 32°C | Lo: 65°FLo: 18°C |
| POP: 50% | POP: 50% | POP: 20% | POP: 40% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 408 AM EDT Sat Sep 12 2026 

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Issued: 324 PM EDT Sat Sep 12 2026
Key Messages
- Isolated to scattered showers and storms continue this afternoon, with precipitation chances diminishing tonight.
- Patchy, locally dense fog is possible Sunday morning, especially in sheltered valleys and in areas which receive rain today.
- Overall drier and hotter conditions arrive early next week while an upper level ridge builds.
Aviation
/18Z TAFS THROUGH 00Z MONDAY/... Issued at 129 PM EDT Sat Sep 12 2026
Spotty showers and storms expected throughout the afternoon for all TAF sites e...
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