| NWS Forecast for: Ontario County Issued by: National Weather Service Buffalo, NY Last Update: 1000 PM EDT Mon Sep 7 2026 | |
| Overnight: Partly to mostly cloudy with some patchy fog developing. Lows in the mid 50s. Light southwest winds. Tuesday: Some patchy fog in the morning, otherwise partly to mostly sunny. Highs ranging from the lower 70s on the hilltops to the upper 70s across the lower elevations. Light winds. Tuesday Night: Mostly cloudy. Lows in the lower 60s. Light winds, becoming south 5 to 10 mph. Wednesday: Partly sunny. A chance of showers and thunderstorms in the afternoon. Highs ranging from the upper 70s on the hilltops to the lower 80s across the lower elevations. South winds 5 to 10 mph, becoming southwest 10 to 15 mph. Chance of rain 40 percent. Wednesday Night: Showers with a chance of thunderstorms in the evening, then showers overnight. Warm and muggy with lows in the upper 60s. Southwest winds 10 to 15 mph, becoming west. Chance of rain 90 percent. Thursday: Mostly cloudy with a 30 percent chance of showers. Highs in the mid 70s. Thursday Night: Mostly cloudy. Lows in the mid 50s. Friday: Mostly sunny. Highs in the lower 70s. Friday Night: Mainly clear. Lows in the mid 50s. Saturday: Mostly sunny. Highs in the upper 70s. Saturday Night: Partly cloudy. Lows in the lower 60s. Sunday: Partly sunny with a 30 percent chance of showers. Highs in the upper 70s. Sunday Night: Partly cloudy with a 30 percent chance of showers. Lows in the upper 50s. Monday: Partly sunny. Highs in the lower 70s. | |
| Zone Forecast: Ontario County | |
Visit your local NWS office at: https://www.weather.gov/buf |