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Olean Weather Forecast
| TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY |
 |  |  |  |  |  |  | |  | | | |
| Mostly Cloudy | Chance of T-Storm | Chance of T-Storm | Chance of Showers | Clearing | Sunny | Clear | Mostly Sunny | Chance of Showers | Chance of Showers | Chance of Showers | Chance of Showers |
| Lo: 61°FLo: 16°C | Hi: 81°FHi: 27°C | Lo: 65°FLo: 18°C | Hi: 71°FHi: 22°C | Lo: 50°FLo: 10°C | Hi: 69°FHi: 21°C | Lo: 50°FLo: 10°C | Hi: 79°FHi: 26°C | Lo: 61°FLo: 16°C | Hi: 75°FHi: 24°C | Lo: 59°FLo: 15°C | Hi: 71°FHi: 22°C |
| POP: 40% | POP: 100% | POP: 30% | POP: 30% | POP: 50% | POP: 50% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 400 PM EDT Tue Sep 08 2026 
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Issued: 120 PM EDT Tue Sep 8 2026
Key Messages
1) A cold front will cross the eastern Great Lakes Wednesday through Wednesday night, producing showers and scattered thunderstorms. A few storms may be severe with isolated damaging wind gusts the primary hazard.
2) A few showers may linger Thursday mainly across the Southern Tier, with dry weather returning Friday through Saturday.
Discussion
... KEY MESSAGE 1...A cold front will cross the eastern Great Lakes Wednesday through Wednesday night, producing showers and scattered thunderst...