Napa County Airport (APC) 15 Day Weather Forecast, Napa United States
Current weather conditions and 15 day weather forecast for Napa County Airport in Napa, United States including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain, wind speed, cloud, pressure, and UV index.
Current weather conditions at APC
| 13 September 2026 Sun 14.6 ° C ( 58.3°F )  Clear |
Feels Like : 12.8 ° C / 55°F Humidity : % 73 Pressure : 1015 mb Wind Speed : 9.4 kmph / 5.8 miles from W 
Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15-day weather forecast for Napa County Airport, Napa, United States
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 12 September 2026 Sat | Sunny |
13 ° C | 28.1 ° C | 18.9 ° C | % 67 | 24.8 km/h | 6% |
| 13 September 2026 Sun | Sunny |
9.4 ° C | 26.5 ° C | 17.2 ° C | % 57 | 19.4 km/h | 3% |
| 14 September 2026 Mon | Sunny |
12.2 ° C | 28.7 ° C | 19.7 ° C | % 48 | 17.6 km/h | 2% |
| 15 September 2026 Tue | Sunny |
12.8 ° C | 28 ° C | 18.8 ° C | % 63 | 13 km/h | 4% |
| 16 September 2026 Wed | Sunny |
12.6 ° C | 28.5 ° C | 18.6 ° C | % 63 | 11.5 km/h | 4% |
| 17 September 2026 Thu | Sunny |
12.3 ° C | 28.1 ° C | 19 ° C | % 59 | 10.4 km/h | 3% |
| 18 September 2026 Fri | Sunny |
12.4 ° C | 28.8 ° C | 18.9 ° C | % 57 | 13.3 km/h | 2% |
| 19 September 2026 Sat | Sunny |
12.3 ° C | 27.9 ° C | 18.8 ° C | % 60 | 11.9 km/h | 5% |
| 20 September 2026 Sun |  Overcast |
12.5 ° C | 27.1 ° C | 18.4 ° C | % 58 | 11.9 km/h | 9% |
| 21 September 2026 Mon | Overcast |
13.5 ° C | 26.3 ° C | 18.2 ° C | % 67 | 11.5 km/h | 12% |
| 22 September 2026 Tue | Sunny |
12.7 ° C | 30.3 ° C | 19.7 ° C | % 60 | 11.5 km/h | 3% |
| 23 September 2026 Wed | Sunny |
13.5 ° C | 27.5 ° C | 18.4 ° C | % 65 | 10.8 km/h | 4% |
| 24 September 2026 Thu | Overcast |
11.3 ° C | 26 ° C | 16.9 ° C | % 61 | 23 km/h | 8% |
| 25 September 2026 Fri | Sunny |
8.5 ° C | 24.3 ° C | 15.7 ° C | % 63 | 18.7 km/h | 4% |
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