Around this time of year, the nights lengthen, cool air begins to pool over Canada, and the long shadow of winter looms over much of the country.
High temperatures the first part of this week reached record levels, with some places soaring well into the 90s and lower 100s clear to the coast. Places such as San Francisco had their warmest temperatures in over a year, and some spots even reached near 110 degrees.
As the strong high pressure responsible for this extreme heat weakens and pushes off to the south, cooler air on a westerly wind will continue to filter in from the Pacific, allowing temperatures to become gradually cooler. This cooling trend is expected to continue.
A storm system developing well offshore will start to approach the coast of California this weekend.
Clouds will start to increase across the northern and central parts of the state later Sunday, before filtering into the rest of the state early next week. A few showers are even possible near the coast.
Temperatures across central and Southern California will drop to as much as 5-10 degrees below normal by Monday and Tuesday, especially from San Francisco southward to Los Angeles and San Diego.
The cool and increasingly showery weather should last into at least the middle part of next week as the low drifts over the state.
Stay with AccuWeather.com for the latest on this cooldown and the potentially showery weather ahead for next week.
Severe storms may erupt from Texas to Wisconsin on Monday as the storm system that spawned several tornadoes across the Plains on Saturday and Sunday shifts slowly to the east.
Several tornadoes touched down from Oklahoma to Iowa, including near Wichita, Kan., and Oklahoma City, on Sunday.
A slow-moving storm resulted in a week of below-normal temperatures that will likely continue into the week.
Several tornado reports have come out of the Midwest this evening, impacting areas around Wichita and Oklahoma City.
Heavy rain returning to the northern Plains will generate a renewed flood threat for the Red River.
Keep up to date on the severe thunderstorm outbreak unfolding across the Plains by tracking local radars.
Patuxent River, MD (1996)
KY, TN, VA (1894)
Late season snow with up to 10" accumulation.
Ft. Myers, FL (1985)
A hospital and several homes were evacuated due to brush fires.