Sonoma County Airport (STS) 15 Day Weather Forecast, Santa Rosa United States
Current weather conditions and 15 day weather forecast for Sonoma County Airport in Santa Rosa, 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 STS
| 22 December 2025 Mon 15.1 ° C ( 59.2°F )  Light rain |
Feels Like : 15.1 ° C / 59.2°F Humidity : % 93 Pressure : 1013 mb Wind Speed : 23 kmph / 14.3 miles from SSW 
Visibility : 2.4 km Precipitation (rainfall) : 2.52 mm Cloud (%) : 100 |
15-day weather forecast for Sonoma County Airport, Santa Rosa, United States
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 21 December 2025 Sun |  Heavy rain |
14.1 ° C | 15.8 ° C | 14.8 ° C | % 96 | 25.2 km/h | 89% |
| 22 December 2025 Mon |  Moderate rain |
9.9 ° C | 13.1 ° C | 12.3 ° C | % 96 | 13.3 km/h | 89% |
| 23 December 2025 Tue | Heavy rain |
11.2 ° C | 12.8 ° C | 11.9 ° C | % 96 | 27 km/h | 88% |
| 24 December 2025 Wed | Heavy rain |
10.7 ° C | 11.5 ° C | 11.4 ° C | % 94 | 28.4 km/h | 88% |
| 25 December 2025 Thu | Heavy rain |
8.5 ° C | 11.8 ° C | 10 ° C | % 89 | 31.3 km/h | 89% |
| 26 December 2025 Fri | Moderate rain |
6.8 ° C | 10.8 ° C | 8.6 ° C | % 93 | 15.8 km/h | 82% |
| 27 December 2025 Sat |  Patchy rain nearby |
4.5 ° C | 12.3 ° C | 8.2 ° C | % 84 | 11.5 km/h | 76% |
| 28 December 2025 Sun |  Sunny |
2.4 ° C | 14 ° C | 7.1 ° C | % 67 | 9.7 km/h | 0% |
| 29 December 2025 Mon | Patchy rain nearby |
5.9 ° C | 11.8 ° C | 8.9 ° C | % 71 | 6.8 km/h | 84% |
| 30 December 2025 Tue | Patchy rain nearby |
6.6 ° C | 12.8 ° C | 9.4 ° C | % 90 | 6.8 km/h | 86% |
| 31 December 2025 Wed |  Partly Cloudy |
6 ° C | 14.4 ° C | 9.1 ° C | % 83 | 5 km/h | 0% |
| 01 January 2026 Thu |  Cloudy |
5.7 ° C | 12.7 ° C | 8.8 ° C | % 88 | 4 km/h | 0% |
| 02 January 2026 Fri | Sunny |
4.6 ° C | 15.8 ° C | 8.8 ° C | % 82 | 3.6 km/h | 0% |
| 03 January 2026 Sat | Sunny |
5.5 ° C | 17 ° C | 9.7 ° C | % 76 | 4.7 km/h | 0% |
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