Weather Alerts For Hopland, CA

URGENT - WEATHER MESSAGE National Weather Service Eureka CA 1227 PM PDT Mon Mar 9 2026 Coastal Del Norte-Northern Humboldt Coast-Mendocino Coast- Northwestern Mendocino Interior-Northeastern Mendocino Interior- Southwestern Mendocino Interior-Southeastern Mendocino Interior- Northern Lake-Southern Lake- Including Willits, Fieldbrook, Laytonville, Potter Valley, Calpella, Covelo, Legget, and Philo 1227 PM PDT Mon Mar 9 2026 ...FROST ADVISORY IN EFFECT FROM 3 AM TO 9 AM PDT TUESDAY... * WHAT...Temperatures as low as 30 will result in frost formation. * WHERE...Mendocino County, Lake County, and Del Norte and Northern Humboldt Coast. * WHEN...From 3 AM to 9 AM PDT Tuesday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. &&

Pollen Index: 8.8 Pollen Level: medium-high Predominant Pollen: Cedar/Juniper, Alder and Birch Concentration of pollen grains in the air for Monday will be unchanged in the high range. This is a result of stable temperatures. Constant and seasonally normal weather conditions tend to stabilize pollen concentrations in the outdoor air.