The timing and intensity of the storm are still difficult to pin down, but the big change in the weather is currently forecast to arrive Monday and exit on Wednesday.
The brunt of the storm is expected on Tuesday and overnight into Wednesday. The storm may bring moderate to heavy precipitation, winds of 25-35 mph, with gusts to 40 mph, according to an e-mail from Kathy Hoxie, warning coordination meteorologist with the National Weather Service in Sacramento.
Hoxie notes that a mixture of heavy precipitation and wind early in the season before trees drop their leaves often results in broken limbs, downed trees, power outages and clogged street drains.
"On the positive note, this storm system may provide enough precipitation to all but bring the fire season to a close," she wrote.
Snow levels from the storm in the Sierra should be above the passes through the mountains early next week. However, some snowfall could occur on trans-Sierra passes Wednesday after most of the precipitation has moved out.
Until fall arrives via the cold front, the Sacramento region is expected to have another afternoon of summer-like temperatures today. The high today is predicted to be 94 degrees downtown.
Temperatures start to cool Friday. The weekend weather is forecast to be cloudy and cool, highs around 78 degrees.
The detailed, 7-day forecast for the Sacramento region:
Today: Sunny, with a high near 94. Southwest wind between 3 and 9 mph.
Tonight: Mostly clear, with a low around 61. South wind between 8 and 10 mph.
Friday: Mostly sunny, with a high near 85. South southwest wind between 6 and 10 mph.
Friday night: Partly cloudy, with a low around 59. South southwest wind around 9 mph.
Saturday: Mostly sunny, with a high near 78. South southwest wind around 6 mph.
Saturday night: Mostly cloudy, with a low around 54.
Sunday: Partly sunny, with a high near 78.
Sunday night: Mostly cloudy, with a low around 54.
Monday: A chance of rain. Partly sunny, with a high near 74.
Monday night: A chance of rain. Mostly cloudy, with a low around 55.
Tuesday: A chance of rain. Mostly cloudy, with a high near 74.
Tuesday night: A chance of rain. Mostly cloudy, with a low around 56.
Wednesday: Rain likely. Cloudy, with a high near 72.
© Copyright The Sacramento Bee. All rights reserved.