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Winter Storm Warning Portola Valley, California
Alert types
Winter alerts in Portola Valley, newest first, in effect or ended
Alert
State
Severity
Places
Ended Cold conditions with temperatures in the low-to-mid 30s expected.
Issued February 18
Ended February 20, 2026
Moderate
Ended Cold conditions with temperatures as low as 34 expected.
Issued February 17
Ended February 18, 2026
Moderate
Ended Cold conditions with temperatures in the low to mid 30s expected.
Issued January 9
Ended January 10, 2026
Moderate
Ended Cold conditions with temperatures in the low to mid 30s expected.
Issued January 7
Ended January 9, 2026
Moderate
Ended Very cold conditions with temperatures in the low to mid 30s possible except for Interior Monterey and San Benito Counties where temperatures in the upper 20s are possible.
Issued January 7
Ended January 9, 2026
Severe
California