As you step out the door in the morning, you'll probably find some frost on your windshield.
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The increasing cold temperatures can be especially difficult for the unhoused community.
At around 5:30 a.m. Monday, ABC7's Lena Howland said it was 37 degrees in Santa Clara, enough of a concern to prompt county officials to open up Bay Area warming centers.
Video above showed frosty conditions in Martinez in the East Bay.
The Santa Clara Senior Center will be the first to open up at 7 a.m. on Monday.
The National Weather Service originally issued a Freeze Watch for most of the Bay Area from Sunday night into Monday Morning, but it has since been converted into a Frost Advisory for the Bay Area and Central Coast.
MORE: Latest weather forecast
These conditions can make people vulnerable to hypothermia, especially younger people and people over the age of 65.
A number of libraries and community centers will open as warming centers throughout Santa Clara County. Here's a list:
2635 Homestead Road
Santa Clara, CA 95051
Hours of Operation:
Mon., Jan. 30 from 10 a.m. to 2 p.m.
Tues., Jan. 31 from noon to 7 p.m.
Wed., Feb. 1 from noon to 6 p.m.
969 Kiely Blvd.
Santa Clara, CA 95051
Hours of Operation:
Mon., Jan. 30 - Wed., Feb. 1 from 8:30 a.m. to 6 p.m.
10800 Torre Ave.
Cupertino, CA 95014
Hours of Operation:
Mon., Jan. 30 - Wed., Feb. 1 from 10 a.m. to 9 p.m.
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350 W. 6th St.
Gilroy, CA 95020
Hours of Operation:
Mon., Jan. 30 - Wed., Feb. 1 from 1 p.m. to 9 p.m.
13 S. San Antonio Road
Los Altos, CA 94022
Hours of Operation:
Mon., Jan. 30 from 10 a.m. to 9 p.m.
160 N. Main St.
Milpitas, CA 95035
Hours of Operation:
Mon., Jan. 30 - Wed., Feb 1 from 10 a.m. to 9 p.m.
1098 Lexington Street
Santa Clara, CA 95050
Hours of Operation:
Mon., Jan. 30 from 9 a.m. to 5 p.m.
Tues., Jan. 31 from noon to 7 p.m.
Wed., Feb. 1 from 9 a.m. to 5 p.m.
660 W. Main Ave.
Morgan Hill, CA 95037
Hours of Operation:
Mon., Jan. 30 - Wed., Feb. 1 from noon to 9 p.m.
695 Moreland Way
Santa Clara, CA 95054
Hours of Operation:
Tues., Jan. 31 from noon to 7 p.m.
Wed., Feb. 1 from noon to 6 p.m.
1303 Fremont St.
Santa Clara, CA 95050
Hours of Operation:
Mon., Jan. 30 through Wed., Feb. 1 from 7 a.m. to 3 p.m.
13650 Saratoga Ave.
Saratoga, CA 95070
Hours of Operation:
Mon., Jan. 30 - Tues., Jan. 31 from 10 a.m. to 9 p.m.
Wed., Feb. 1 from 10 a.m. to 6 p.m.
1975 Grant Road
Los Altos, CA 94024
Hours of Operation
Mon., Jan. 30 - Wed., Feb. 1 from 11 a.m. to 8 p.m.
For folks seeking overnight shelter, Santa Clara County officials have set up the "Here 4 You Hotline" at (408) 385-2400. The hotline will operate with extended hours of 9 a.m. to 8 p.m. during the inclement weather period.
Unhoused individuals in San Jose can also seek an Overnight Warming Location (OWL) bed by calling the referral line at (408) 539-2105 or by emailing here.
Marin County:
Marin County has opened a shelter for people experiencing homelessness in response to Monday's Freeze Warning.
It's located at the Marin Health and Wellness Campus at 3253 Kerner Boulevard in San Rafael.
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The emergency overnight shelter is open until 6:30 a.m. and will reopen Monday at 5 p.m.
People interested in shelter are encouraged to sign in by 8 p.m.
Volunteers and donations are not being accepted for this shelter by Health and Human Services.
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