Weather World
Napa County, CA Official WebsiteNapa County, CA 7-Day Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Napa County Weather Forecast
Napa County, CA Weather Forecast Date: 902 PM PDT Sun Oct 04 2026
Weather forecast for Napa County, CA
Tonight Lo: 65°F Lo: 18°C |
Tonight... Mostly clear. Lows in the upper 50s to lower 70s. West winds up to 5 mph. |
Mon Hi: 91°FHi: 33°C Lo: 65°F Lo: 18°C |
Monday... Sunny. Highs mid 80s to 101. South winds 5 to 10 mph. |
| Tue Hi: 91°FHi: 33°C Lo: 61°F Lo: 16°C |
Tuesday... Sunny. Highs mid 80s to 100. North winds up to 5 mph... Becoming southwest in the afternoon. |
| Wed Hi: 97°FHi: 36°C Lo: 56°F Lo: 13°C |
Wednesday... Sunny. Highs in the mid 80s to upper 90s. |
| Thu Hi: 90°FHi: 32°C Lo: 55°F Lo: 13°C |
Thursday... Mostly clear. Highs in the upper 70s to mid 90s. Lows in the lower 50s to mid 60s. |
| Fri Hi: 87°FHi: 31°C Lo: 55°F Lo: 13°C |
Friday... Mostly clear. Highs in the mid 70s to upper 80s. Lows in the 50s. |
Sat Hi: 71°FHi: 22°C Lo: 50°F Lo: 10°C |
Saturday... Partly cloudy. Highs in the mid 60s to lower 80s. |
Napa County Radar Loop
Use the map search tool if you want to place a location marker on the radar map...