| NWS Forecast for: Ontario County Issued by: National Weather Service Buffalo, NY Last Update: 230 PM EDT Mon Jun 29 2026 |  |
This Afternoon: Mostly sunny. Highs ranging from the lower 80s on the hilltops to the upper 80s across the lower elevations. Light east winds. Tonight: Becoming mainly clear. Very warm with lows in the lower 70s. Light south winds. Tuesday: Partly to mostly sunny. A 40 percent chance of showers and thunderstorms. Hot with highs ranging from the mid 80s on the hilltops to the lower 90s across the lower elevations. Southwest winds 10 mph or less. Heat index values up to 100. Tuesday Night: Partly to mostly cloudy. Very warm and muggy with lows in the mid 70s. Light winds, becoming southwest around 10 mph. Wednesday: Partly to mostly sunny. A 30 percent chance of showers and thunderstorms. Hot with highs ranging from the upper 80s on the hilltops to the mid 90s across the lower elevations. Southwest winds 5 to 10 mph, becoming west 10 to 15 mph. Wednesday Night: Mainly clear. Lows in the mid 70s. Thursday: Sunny. Highs in the mid 90s. Thursday Night: Partly cloudy. Lows in the mid 70s. Friday: Partly sunny with a 50 percent chance of showers and thunderstorms. Highs in the lower 90s. Friday Night: Mostly cloudy with a 50 percent chance of showers and thunderstorms. Lows in the lower 70s. Independence Day: Showers likely with a chance of thunderstorms. Highs in the upper 80s. Chance of rain 60 percent. Saturday Night: Showers likely with a chance of thunderstorms. Lows in the upper 60s. Chance of rain 60 percent. Sunday: Partly sunny with a 40 percent chance of showers and thunderstorms. Highs in the mid 80s. | |
| Zone Forecast: Ontario County | |
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