Submitted by John C. Toman, meteorologist with temeculaweather.com
Summer-like temperatures will continue on the first full day of fall in the Temecula Valley and the region; fall began Satuday.
But the heat won't last, as low pressure deepening over the west leads to cooler weather for much of the week.
Onshore flow will be prevalent through at least Wednesday, and morning low clouds could poke into the area Wednesday and Thursday.
The next warming trend looks to begin by Thursday and last into next weekend. Some high clouds, remnants of Tropical Storm Miriam, should reach the area by Saturday.
Sunday: Mostly sunny. Very warm and breezy. Light variable wind becoming southwest 10 to 20 mph in the afternoon, high near 96 degrees.
Predicted air quality index is: 57.
Sunday night: Mostly clear, breezy early. Southwest wind 10 to 20 mph in the evening, low around 65 degrees.
Monday: Sunny. Warm and breezy. Southwest wind increasing to 10 to 20 mph in the afternoon, high of about 89 degrees.
Monday night: Clear, low near 62 degrees.
Tuesaday: Sunny. Warm, high around 82 degrees.
Tuesday night: Clear, then low clouds and patchy fog developing late, low of about 60 degrees.
Wednesday: Morning low clouds and fog, becoming sunny. Warm, high near 84 degrees.
Wednesday night: Clear, then low clouds and patchy fog developing late, low around 60 degrees.
Thursday: Morning low clouds and fog, becoming sunny. Warm, high of about 87 degrees.
Thursday night: Mostly clear, low near 62 degrees.
Friday: Mostly sunny. Very warm, high around 90 degrees.
Friday night: Mostly clear, becoming partly cloudy, low of about 62 degrees.
Saturday: Partly sunny. Very warm, high near 90 degrees.