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7-Day Zone Forecast for Ontario County (Text-Only)
NWS Forecast for: Ontario County
Issued by: National Weather Service Buffalo, NY
Last Update: 400 AM EDT Wed Jun 10 2026




Today: Showers with a chance of thunderstorms from late morning on. Very warm with highs ranging from around 80 on the hilltops to the mid 80s across the lower elevations. Southwest winds 5 to 10 mph, becoming west 10 to 15 mph. Chance of rain 80 percent.

Tonight: Partly cloudy with a chance of showers and thunderstorms in the evening, then mostly cloudy with a chance of showers overnight. Very warm and muggy with lows around 70. West winds 10 to 15 mph, becoming light. Chance of rain 50 percent.

Thursday: Showers with a chance of thunderstorms. Very warm and humid with highs ranging from the lower 80s on the hilltops to the upper 80s across the lower elevations. West winds 5 to 10 mph, increasing to 10 to 15 mph. Chance of rain 90 percent. Heat index values in the mid 90s.

Thursday Night: Mostly cloudy with showers with a chance of thunderstorms in the evening, then partly cloudy overnight. Very warm and muggy with lows around 70. West winds 5 to 10 mph, becoming light. Chance of rain 90 percent.

Friday: Showers in the morning, then showers with a chance of thunderstorms in the afternoon. Very warm and humid with highs ranging from the mid 80s on the hilltops to the upper 80s across the lower elevations. Southwest winds 5 to 10 mph, becoming west 10 to 15 mph. Chance of rain near 100 percent.

Friday Night: Showers with a chance of thunderstorms. Lows around 60. Chance of rain near 100 percent.

Saturday: Sunny. Highs in the lower 80s.

Saturday Night: Mainly clear. Lows in the lower 60s.

Sunday: Partly sunny with a 50 percent chance of showers and thunderstorms. Highs around 80.

Sunday Night: Mostly cloudy with a 50 percent chance of showers and thunderstorms. Lows in the mid 50s.

Monday: Partly sunny with a 30 percent chance of showers. Highs in the lower 70s.

Monday Night: Mostly cloudy with a 30 percent chance of showers. Lows in the mid 50s.

Tuesday: Partly sunny with a chance of showers. Highs in the lower 70s. Chance of rain 30 percent.







Zone Forecast: Ontario County

Visit your local NWS office at: https://www.weather.gov/buf