Hour-by-hour Forecast in Napa — Graph
Detailed Hourly Forecast — Next 24 hours
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| Conditions | Comfort | Precipitation | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Time | Temp | Weather | Feels Like | Wind | Humidity | Chance | Amount | ||
| 9:00 am Sat, Mar 21 |  | 57 °F | Overcast. | 57 °F | 3 mph | ↑ | 87% | 0% | 0.00" (snow) 0.00" (rain) |
| 10:00 am | | 64 °F | Cloudy. | 64 °F | 2 mph | ↑ | 74% | 0% | 0.00" (snow) 0.00" (rain) |
| 11:00 am | | 72 °F | Cloudy. | 76 °F | 2 mph | ↑ | 58% | 0% | 0.00" (snow) 0.00" (rain) |
| 12:00 pm | | 77 °F | Cloudy. | 79 °F | 4 mph | ↑ | 49% | 0% | 0.00" (snow) 0.00" (rain) |
| 1:00 pm | | 81 °F | Overcast. | 81 °F | 5 mph | ↑ | 43% | 0% | 0.00" (snow) 0.00" (rain) |
| 2:00 pm | | 83 °F | Overcast. | 82 °F | 6 mph | ↑ | 39% | 0% | 0.00" (snow) 0.00" (rain) |
| 3:00 pm |  | 84 °F | Broken clouds. | 83 °F | 7 mph | ↑ | 39% | 0% | 0.00" (snow) 0.00" (rain) |
| 4:00 pm |  | 83 °F | Scattered clouds. | 83 °F | 8 mph | ↑ | 41% | 0% | 0.00" (snow) 0.00" (rain) |
| 5:00 pm | | 82 °F | Mostly sunny. | 82 °F | 9 mph | ↑ | 43% | 0% | 0.00" (snow) 0.00" (rain) |
| 6:00 pm |  | 79 °F | Sunny. | 80 °F | 7 mph | ↑ | 45% | 0% | 0.00" (snow) 0.00" (rain) |
| 7:00 pm | | 73 °F | Sunny. | 77 °F | 6 mph | ↑ | 52% | 0% | 0.00" (snow) 0.00" (rain) |
| 8:00 pm |  | 68 °F | Clear. | 68 °F | 4 mph | ↑ | 58% | 0% | 0.00" (snow) 0.00" (rain) |
| 9:00 pm | | 60 °F | Clear. | 60 °F | 4 mph | ↑ | 72% | 0% | 0.00" (snow) 0.00" (rain) |
| 10:00 pm | | 56 °F | Clear. | 56 °F | 4 mph | ↑ | 77% | 0% | 0.00" (snow) 0.00" (rain) |
| 11:00 pm | | 53 °F | Clear. | 53 °F | 3 mph | ↑ | 81% | 0% | 0.00" (snow) 0.00" (rain) |
| 12:00 am Sun, Mar 22 | | 50 °F | Clear. | 50 °F | 3 mph | ↑ | 86% | 0% | 0.00" (snow) 0.00" (rain) |
| 1:00 am |  | 49 °F | Mostly clear. | 49 °F | 2 mph | ↑ | 88% | 0% | 0.00" (snow) 0.00" (rain) |
| 2:00 am | | 48 °F | Mostly clear. | 48 °F | 2 mph | ↑ | 89% | 0% | 0.00" (snow) 0.00" (rain) |
| 3:00 am |  | 47 °F | Partly cloudy. | 47 °F | 2 mph | ↑ | 92% | 0% | 0.00" (snow) 0.00" (rain) |
| 4:00 am |  | 46 °F | Mostly cloudy. | 46 °F | 2 mph | ↑ | 92% | 0% | 0.00" (snow) 0.00" (rain) |
| 5:00 am | | 47 °F | Overcast. | 47 °F | 2 mph | ↑ | 91% | 0% | 0.00" (snow) 0.00" (rain) |
| 6:00 am | | 47 °F | Cloudy. | 47 °F | 2 mph | ↑ | 90% | 0% | 0.00" (snow) 0.00" (rain) |
| 7:00 am | | 46 °F | Cloudy. | 46 °F | 2 mph | ↑ | 91% | 0% | 0.00" (snow) 0.00" (rain) |
| 8:00 am | | 48 °F | Cloudy. | 48 °F | 2 mph | ↑ | 90% | 0% | 0.00" (snow) 0.00" (rain) |
| * Updated Saturday, March 21, 2026 6:42:39 am Napa time - Weather by CustomWeather, © 2026 | |||||||||