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The Fire Weather Zones in Del Norte, Humboldt, Trinity, Mendocino, and Lake Counties will be Changing in March 2026
The Public Forecast Zones in Trinity and Lake Counties will be Changing in March 2026

Hazardous Weather Conditions

Cold Weather Advisory in effect from February 20, 12:00 AM PST until February 20, 09:00 AM PST

Current conditions at

TRINITY RIVER NEAR DOUGLAS CITY 1SW (DCYC1)

Lat: 40.64528°NLon: 122.95667°WElev: 1598ft.

N/A

Humidity	NA
Wind Speed	NA NA MPH
Barometer	NA
Dewpoint	N/A
Visibility	NA
Last update	NA

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

10 Miles S Lewiston CA

Cold Weather Advisory February 20, 12:00am until February 20, 09:00am

Click here for hazard details and duration

Cold Weather Advisory

This Afternoon
High: 27 °F
Chance Snow
Showers and
Windy
Tonight
Low: 17 °F
Mostly Clear
and Blustery
then Mostly
Clear
Friday
High: 26 °F
Mostly Sunny
then Slight
Chance Snow
Showers
Friday Night
Low: 25 °F
Chance Snow
Showers and
Breezy
Saturday
High: 32 °F
Snow Likely
and Windy
Saturday Night
Low: 27 °F
Heavy Snow
and Windy
Sunday
High: 38 °F
Heavy Snow
and Windy
Sunday Night
Low: 35 °F
Breezy.
Rain/Snow
then Rain
Monday
High: 39 °F
Rain and
Breezy

Detailed Forecast

This Afternoon

A 30 percent chance of snow showers, mainly before 1pm. Partly sunny, with a high near 27. Windy, with a west northwest wind 18 to 22 mph, with gusts as high as 34 mph.

Tonight

Mostly clear, with a low around 17. Blustery, with a west northwest wind 9 to 17 mph, with gusts as high as 28 mph.

Friday

A 10 percent chance of snow showers after 4pm. Increasing clouds, with a high near 26. West wind 5 to 13 mph becoming south southeast in the afternoon. Winds could gust as high as 21 mph.

Friday Night

A 30 percent chance of snow showers, mainly after 10pm. Mostly cloudy, with a low around 25. Breezy, with a southeast wind 15 to 20 mph, with gusts as high as 32 mph.

Saturday

Snow likely, mainly after 4pm. Cloudy, with a high near 32. Windy, with an east southeast wind 17 to 23 mph, with gusts as high as 31 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

Saturday Night

Snow. The snow could be heavy at times. Low around 27. Windy, with an east wind around 22 mph, with gusts as high as 34 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 7 inches possible.

Sunday

Snow. The snow could be heavy at times. High near 38. Windy. Chance of precipitation is 90%. New snow accumulation of 5 to 9 inches possible.

Sunday Night

Rain and snow, becoming all rain after 10pm. Cloudy, with a low around 35. Breezy.

Monday

Rain. Cloudy, with a high near 39. Breezy.

Monday Night

Rain. Cloudy, with a low around 36.

Tuesday

Rain and snow. Cloudy, with a high near 37.

Tuesday Night

Rain and snow showers. Mostly cloudy, with a low around 34.