Weather World
About Lake Hennessey, NapaLake Hennessey, CA 7-Day Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Lake Hennessey Weather Forecast
Lake Hennessey, CA Weather Forecast Date: 902 PM PDT Thu Aug 27 2026
Weather forecast for Lake Hennessey, CA
Tonight Lo: 56°F Lo: 13°C |
Tonight... Mostly cloudy. A slight chance of rain after midnight. Lows in the mid 50s to lower 60s. Southwest winds 5 to 10 mph. |
Fri Hi: 76°FHi: 24°C Lo: 50°F Lo: 10°C |
Friday... Mostly cloudy in the morning then becoming partly cloudy. A slight chance of rain in the morning. Highs in the lower 70s to mid 80s. Southwest winds 5 to 15 mph. |
Sat Hi: 80°FHi: 27°C Lo: 50°F Lo: 10°C |
Saturday... Partly cloudy in the morning then becoming sunny. Patchy fog in the morning. Highs in the upper 60s to mid 80s. West winds 5 to 10 mph...Becoming southwest 10 to 20 mph in the afternoon. |
| Sun Hi: 80°FHi: 27°C Lo: 50°F Lo: 10°C |
Sunday... Sunny. Patchy fog. Highs in the upper 60s to mid 80s. |
| Mon Hi: 77°FHi: 25°C Lo: 46°F Lo: 8°C |
Monday... Partly cloudy. Patchy fog. Highs in the mid 60s to upper 70s. Lows in the 40s to mid 50s. |
| Tue Hi: 77°FHi: 25°C Lo: 46°F Lo: 8°C |
Tuesday... Partly cloudy. Patchy fog. Highs in the mid 60s to upper 70s. Lows in the 40s to mid 50s. |
| Tue Hi: 77°FHi: 25°C Lo: 59°F Lo: 15°C |
Tuesday... Partly cloudy. Patchy fog. Highs in the mid 60s to upper 70s. Lows in the 40s to mid 50s. |
| Wed Hi: 75°FHi: 24°C Lo: 59°F Lo: 15°C |
Wednesday... Partly cloudy. Patchy fog. Highs in the upper 60s to lower 80s. Lows in the 40s to upper 50s. |
Lake Hennessey Radar Loop
Use the map search tool if you want to place a location marker on the radar map...