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Delevan, NY Weather Forecast
Delevan, NY Weather Forecast Date: 524 PM EST Mon Nov 09 2026
The area/counties/county of: Cattaraugus, including the city of Olean.or toggle through each period.
Tonight... Mostly cloudy. Lows in the mid 30s. West winds 5 to 10 mph, becoming southwest.
Tuesday... Mostly sunny. Highs in the mid 50s. Southwest winds 10 to 15 mph with gusts up to 30 mph, becoming west.
Tuesday Night... Partly cloudy in the evening, then becoming mostly cloudy. Lows in the mid 30s. West winds 5 to 10 mph, becoming light.
Veterans Day... Mostly cloudy. Highs in the lower 50s. Light winds.
Wednesday Night... Mostly cloudy. A chance of rain showers in the evening, then rain showers likely overnight. Lows in the upper 30s. Light winds. Chance of rain 60%.
Thursday... Rain showers. Highs in the upper 40s. Chance of rain 90%.
Thursday Night... Rain showers with snow showers likely. Lows in the upper 20s. Chance of precipitation 90%.
Friday... Snow and rain showers likely. Highs in the upper 30s. Chance of precipitation 60%.
Friday Night... Mostly cloudy with a 50% chance of snow showers. Lows in the mid 20s.
Saturday... Mostly cloudy with a 50% chance of snow showers. Highs in the upper 30s.
Saturday Night... Mostly cloudy with a 30% chance of snow showers. Lows in the mid 20s.
Sunday... Mostly cloudy with a chance of snow showers. Highs in the lower 40s. Chance of snow 30%.
Sunday Night... Mostly cloudy. Lows in the upper 20s.
POP = Probability of Precipitation
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