Weather Forecast and Radar for Ontario, Oregon

Current & 7-day weather forecast, weather alerts, and weather radar for Ontario, Oregon.
All times shown in your local timezone

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Temperature Forecast for Ontario, Oregon

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Temperature Forecast for Ontario, Oregon

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Weather Radar for Ontario, Oregon

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Weather in Ontario, OR

Ontario, Oregon, United States experiences generally mild weather year-round with variations in temperatures based on the season. During the winter, temperatures average between a low of 26°F and a high of 46°F throughout December, January, and February. Spring brings a slight increase in temperature with lows of 32°F and highs of 56°F in March, April, and May. The summer months of June, July, and August boast the warmest temperatures of the year with lows of 45°F and highs of 95°F. As the season turns to fall, the temperatures begin to cool once again with lows of 28°F and highs of 79°F in September, October, and November.

Fast Facts About Ontario, OR

As of 2020, the city population is 11031.

Major Cities Nearby Ontario, OR

This map shows the current & 7-day weather forecast, weather alerts, and weather radar for Ontario, Oregon.