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St. Helena, CA

81°F
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St. Helena

California

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St. Helena, CA Weather
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Mostly sunny
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June Weather in St. Helena

St. Helena's June 2026 forecast shows daily high temperatures ranging from 83° to 91°, with overnight lows between 51° and 53°. The average high for June is 88° with an average low of 52°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in St. Helena. See also: July | August | September.

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Weather Near St. Helena:

  • Oakland, CA
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