Over the next 10 days Sylmar tops out around 105° (Tuesday) and dips to 67° on the coolest night (Wednesday). Rain totals look negligible: a dry run of days ahead. The NWS alert board for this area is currently clear. Right now Sylmar is about 23° cooler than nearby Riverside. Longer view: Mediterranean pattern — nearly all rain lands November through March.
Sylmar, CA · Elev 1,253 ft · 34.31°N, 118.45°W · California · Forecast computed for these exact coordinates