National Weather Service forecasts say a cold front associated with the trough of pressure will sweep into the area Monday and bring much cooler, cloudy and unsettled weather over Pasadena into late next week.
Temperatures are expected to peak at 82 degrees Friday afternoon as the first significant Santa Ana wind event of the season sweeps into Southern California. The event brings about renewed fire danger, hazardous crosswinds for motorists and the potential for power outages and tree damage.
Friday night will be clear with a low around 60 degrees.
Breezy and windy conditions may persist into Saturday when ten degrees above normal temperatures – about 88 degrees – could prevail.
Relative humidity is starting to fall across the area with Pasadena being in the 18 to 20 percent range Saturday through Sunday.
By Monday, with the cooling trend associated with the cold front, humidity could go up to 47 percent and a 40 percent chance of rain is possible.