The agency said frost and freezing conditions are possible across Mendocino and Lake counties from Saturday through early next week.
Ahead of that, the forecast calls for chances of rain from Thursday through Friday. On Thursday, less than a tenth of an inch is anticipated, to be accompanied by light winds.
Winds are expected to continue on Thursday and increase to more than 25 miles per hour on Friday, with gusts of close to 40 miles per hour.
Temperatures from Thursday through Wednesday will range from the low 40s down into the low 30s at night, and the low 50s to high 60s during the day.
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