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Napa County, CA Weather Forecast
Napa County, CA Weather Forecast Date: 302 PM PDT Mon Aug 17 2026
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Rest of Today... Sunny. Highs in the lower 70s to mid 80s. Southwest winds 10 to 15 mph.
Tonight... Partly cloudy in the evening then becoming mostly cloudy. Patchy fog after midnight. Lows in the 50s. Southwest winds 5 to 10 mph.
Tuesday... Mostly cloudy in the morning then becoming sunny. Patchy fog in the morning. Highs in the 70s to 80s. Southwest winds 5 to 15 mph.
Tuesday Night... Partly cloudy in the evening then becoming mostly cloudy. Patchy fog after midnight. Lows in the 50s to lower 60s. Southwest winds 5 to 10 mph.
Wednesday... Mostly cloudy in the morning then becoming sunny. Patchy fog in the morning. Highs in the mid 70s to upper 80s. Southwest winds 5 to 10 mph.
Wednesday Night... Mostly clear in the evening then becoming partly cloudy. Lows in the 50s.
Thursday... Mostly cloudy in the morning then becoming partly cloudy. Highs in the 70s to 80s.
Thursday Night... Partly cloudy in the evening then becoming mostly cloudy. Lows in the 50s.
Friday... Mostly cloudy in the morning then becoming sunny. Highs in the lower 70s to mid 80s.
Friday Night... Mostly clear. Lows in the 50s. Highs in the lower 70s to mid 80s.
Saturday... Mostly clear. Lows in the 50s. Highs in the lower 70s to mid 80s.
POP = Probability of Precipitation
Napa County Radar Loop
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