O'Sullivan Army Air Field (CSL) 15 Day Weather Forecast, San Luis Obispo United States
Current weather conditions and 15 day weather forecast for O'Sullivan Army Air Field in San Luis Obispo, 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 CSL
| 15 December 2025 Mon 13.3 ° C ( 55.9°F )  Partly cloudy |
Feels Like : 12.8 ° C / 55.1°F Humidity : % 82 Pressure : 1017 mb Wind Speed : 8.3 kmph / 5.1 miles from N 
Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 75 |
15-day weather forecast for O'Sullivan Army Air Field, San Luis Obispo, United States
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 15 December 2025 Mon |  Sunny |
18.6 ° C | 28 ° C | 21.8 ° C | % 79 | 11.5 km/h | 0% |
| 16 December 2025 Tue | Partly Cloudy |
18 ° C | 23.5 ° C | 20.7 ° C | % 89 | 16.9 km/h | 0% |
| 17 December 2025 Wed | Partly Cloudy |
17 ° C | 23.6 ° C | 20.5 ° C | % 82 | 11.9 km/h | 0% |
| 18 December 2025 Thu | Sunny |
20.4 ° C | 25.7 ° C | 22.6 ° C | % 57 | 9.4 km/h | 0% |
| 19 December 2025 Fri | Sunny |
20.5 ° C | 25.9 ° C | 22.3 ° C | % 56 | 9.7 km/h | 0% |
| 20 December 2025 Sat | Sunny |
21.2 ° C | 25.7 ° C | 23.2 ° C | % 57 | 14.8 km/h | 0% |
| 21 December 2025 Sun | Sunny |
21.7 ° C | 25.8 ° C | 23.3 ° C | % 55 | 11.2 km/h | 0% |
| 22 December 2025 Mon | Sunny |
21.3 ° C | 26.5 ° C | 23.5 ° C | % 55 | 11.5 km/h | 0% |
| 23 December 2025 Tue | Sunny |
21.6 ° C | 26.3 ° C | 23.7 ° C | % 55 | 15.1 km/h | 0% |
| 24 December 2025 Wed | Sunny |
22.3 ° C | 27.6 ° C | 24.5 ° C | % 53 | 16.6 km/h | 0% |
| 25 December 2025 Thu | Sunny |
22.8 ° C | 28.6 ° C | 25.5 ° C | % 52 | 15.8 km/h | 0% |
| 26 December 2025 Fri | Sunny |
22.8 ° C | 26.7 ° C | 24.4 ° C | % 60 | 13 km/h | 0% |
| 27 December 2025 Sat | Sunny |
21 ° C | 25.7 ° C | 23.2 ° C | % 72 | 10.4 km/h | 0% |
| 28 December 2025 Sun | Sunny |
20.9 ° C | 25.3 ° C | 22.9 ° C | % 75 | 9 km/h | 0% |
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