MENDOCINO CO., 12/30/25 – Rain returns to Mendocino County on Wednesday, with the National Weather Service warning of a stronger system Friday that could bring heavy rain and localized flooding into the weekend.
A series of atmospheric rivers are expected to move through Northern California, increasing the risk of flooding in urban areas and along streams and other low-lying areas. Road closures may be possible during periods of heavier rain.
As of Tuesday morning, the National Water Prediction Service forecasts that the Navarro and Russian rivers will remain below flood stage, though conditions could change depending on rainfall totals later this week.
Here’s what to expect:
- Wed–Thu: Rain returns, mostly light to moderate
- Fri–Sat: Heavier rain, thunderstorms possible, flooding risk increases
- Weekend: Rain likely continues; colder air may bring snow to higher elevations
The coast is also under a coastal flood advisory from Wednesday morning through Sunday afternoon as king tides return. High tides could result in flooding of low-lying coastal areas, including beach access points, harbors and oceanside parking lots.
The storms follow a brief stretch of drier weather after heavy rain and strong winds impacted the county last week, causing flooding and road closures in some areas.
Residents in flood-prone areas are urged to monitor forecasts closely, sign up for emergency alerts at mendoready.org, know their evacuation zone, and be prepared to act if flooding occurs. The Mendocino Voice’s list of sandbag station is available here.
Because Mendocino County contains multiple microclimates, weather conditions may vary widely by location. Additional forecasts, watches and warnings are available at weather.gov.