Ontario Long Range Weather Forecast for May 12th to June 11th
May 2026
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12Mild and fair.
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16Mild temperatures, a few showers.
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20Cool and windy; scattered showers in the east and central regions.
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24Dry and pleasant; fair skies in southern Ontario, breezy in the north.
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28Stormy finish; strong winds and rain in eastern Ontario.
June 2026
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1Cool and damp; showers in southern Ontario, snow lingers in far northern regions.
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4Chilly and breezy; dry skies in the southwest, gusty in eastern and northern Ontario.
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8Unsettled and cool; scattered rain in central Ontario, foggy mornings in the east.
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12Mild and fair.
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