Pasadena will remain hotter than normal through Saturday, with highs in the lower 90s, before a significant cool down arrives Sunday, according to the National Weather Service Los Angeles/Oxnard office.
Forecasters said today will be sunny with a high near 92. Winds will stay calm before shifting southwest at 5 mph in the afternoon. Tonight will be mostly clear, with lows around 66.
Friday will continue hot, reaching near 94 under sunny skies. Winds will remain light, becoming southwest in the afternoon. Patchy fog may develop late Friday night, with lows around 67.
Saturday will bring similar heat, with highs near 94. Morning fog is expected before skies turn partly sunny. Forecasters noted mid- and high-level clouds could increase depending on the track of Hurricane Polo. Overnight lows will remain in the upper 60s.
Sunday marks the change, with highs dropping to the mid-80s. A trough moving into California will deepen the marine layer, producing widespread morning clouds. Temperatures will fall 4 to 8 degrees compared to Saturday, forecasters said.
Monday may bring a slight chance of showers, though forecasters stressed uncertainty tied to tropical systems Polo and Odalys. At present, most rainfall is expected to remain south of Los Angeles County. Pasadena’s high Monday should reach near 81, with partly to mostly cloudy skies.
Winds will stay light throughout the forecast period, generally calm in the mornings and shifting southwest in the afternoons. No advisories are currently in effect for Pasadena, though forecasters warned of increasing south swells at area beaches beginning Sunday, peaking Monday and Tuesday.
By Tuesday, weak offshore flow and building high pressure will return, warming Pasadena’s highs back into the upper 80s. Wednesday should remain sunny, with highs near 89.
Here is the Pasadena forecast from the National Weather Service as of 2:35 a.m. Thursday:
Today: Sunny, with a high near 92. Calm wind becoming south southwest around 5 mph in the afternoon.
Tonight: Mostly clear, with a low around 66. Southwest wind around 5 mph becoming calm in the evening.
Friday: Sunny, with a high near 94. Calm wind becoming south southwest around 5 mph in the afternoon.
Friday Night: Patchy fog after 11:00 p.m. Otherwise, increasing clouds, with a low around 67. Southwest wind around 5 mph becoming calm.
Saturday: Patchy fog before 11:00 a.m. Otherwise, partly sunny, with a high near 94. Calm wind becoming south southwest around 5 mph.
Saturday Night: Mostly cloudy, with a low around 67.
Sunday: Sunny, with a high near 84.
Sunday Night: Mostly cloudy, with a low around 63.
Monday: A slight chance of showers. Mostly sunny, with a high near 81.
Monday Night: Mostly clear, with a low around 61.
Tuesday: Sunny, with a high near 87.
Tuesday Night: Clear, with a low around 65.
Wednesday: Sunny, with a high near 89.
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