First Alert Forecast: Warm start to the week

Now that we’ve reached the Autumnal Equinox, the length of daylight will decrease each day until the Winter Solstice.

During the fall season, temperatures will significantly cool at night and in the early morning hours. However, it’s important to remember that coastal communities and valleys may still experience hot temperatures and a bigger threat of fire danger due to Santa Ana winds and offshore flow that often develops in October and November.

While we’re not anticipating a major heat wave with extreme temperatures, Monday and Tuesday are expected to be the hottest days of the week. For the valleys and foothills, temperatures will rise into the upper 80s and mid-90s as high pressure strengthens, marking a return to above-average levels. This trend will take us through Tuesday before temps start to taper again.

We’ll have an overcast start to the morning for most of the county ahead of the afternoon clearing for our valleys, mountains, and deserts. There was a good amount of dense fog over our valleys this morning, limiting visibility on the roads for drivers. As a reminder, when driving through dense fog, increase the following distance, turn on low beams, and slow down.

For the rest of the week, temperatures will cool slightly but remain above average for this time of year due to a warm air mass.

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