‘Chilly snap’ hits San Francisco Bay Space, some spots forecast to drop into 20s

It’s time to pull out the wool mittens and hat. Chilly temperatures are expected to grip the San Francisco Bay Area over the next several nights and mornings, through Sunday morning. Some inland valleys could see the mercury dipping into the bone-chilling 20s, while San Francisco is forecast to drop to 40 on Friday and Saturday mornings.
“Frost and freezing temperatures possible for inland valleys and cold sheltered spots,” the National Weather Service warned. “These temperatures will impact those without adequate heating, and may damage or kill sensitive vegetation.”
The weather service forecast lows near 40 along the bay and coast, mid- to upper 30s for coastal valleys, and upper 20s to lower 30s for inland valleys.
“It’s going to be a good cold snap for a few days, especially in regards to the lows,” said Sean Miller, a forecaster with the weather service. “Saturday morning is expected to be the coldest morning during this event. We should be warming up after Sunday morning.”
Forecast lows around the Bay Area:
-San Francisco: near 40;
-San Jose/South Bay: mid- to upper 30s;
-East Bay: lower to mid-30s;
-North Bay valleys: upper 20s to lower 30s;
-Monterey Bay: mid- to upper 30s to about 40;
-Eastern Monterey and San Benito counties: mid-20s to low 30s.
Afternoon highs will be in the mid-40s to mid-50s through the weekend.
Conditions will be dry through the weekend, with rain returning next week, possibly as early as Monday.
“We expect rain early next week within the Monday to Wednesday timeframe,” said Miller. “We’re still a few days out, so things could change with that. In general, it looks like it could be a good rainmaker. We’ve gotten into an active pattern here and it looks like we’re going to continue with that into the near future.”