| NWS Forecast for: Ontario County Issued by: National Weather Service Buffalo, NY Last Update: 400 AM EDT Sun May 10 2026 |  |
| Today: Becoming mostly sunny. A chance of showers early. Highs ranging from the lower 50s on the hilltops to the upper 50s across the lower elevations. West winds 10 mph or less, becoming northwest 10 to 15 mph. Chance of rain 30 percent. Tonight: Mainly clear in the evening, then becoming partly cloudy with patchy frost developing overnight. Lows in the upper 30s. Northwest winds 5 to 10 mph, becoming light. Monday: Partly sunny and cool with highs ranging from the upper 40s on the hilltops to the mid 50s across the lower elevations. Light winds, becoming northwest 10 to 15 mph. Monday Night: Mainly clear with widespread frost developing. Cold with lows ranging from the lower 30s on the hilltops to the mid 30s across the lower elevations. Northwest winds 5 to 10 mph, becoming light. Tuesday: Sunny. Highs ranging from the lower 50s on the hilltops to the upper 50s across the lower elevations. Light winds. Tuesday Night: Showers likely. Lows in the mid 40s. Chance of rain 70 percent. Wednesday: Showers with a chance of thunderstorms. Highs in the lower 60s. Chance of rain 90 percent. Wednesday Night: Showers with a chance of thunderstorms. Lows in the mid 40s. Chance of rain 90 percent. Thursday: Mostly cloudy with a 50 percent chance of showers. Highs in the upper 50s. Thursday Night: Mostly cloudy with a 50 percent chance of showers. Lows in the mid 40s. Friday: Partly sunny. Highs in the mid 60s. Friday Night: Partly cloudy. Lows in the upper 40s. Saturday: Mostly sunny. Highs around 70. | |
| Zone Forecast: Ontario County | |
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