Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Hazardous Weather Conditions

Winter Weather Advisory in effect from December 26, 04:00 PM PST until December 27, 10:00 AM PST

Current conditions at

Winchester (ITD41)

Lat: 46.25521°NLon: 116.6051°WElev: 3761.0ft.

30°F

-1°C

Humidity	98%
Wind Speed	S 3 MPH
Barometer	NA
Dewpoint	29°F (-2°C)
Visibility	1.24 mi
Last update	26 Dec 12:00 AM PST

More Information:

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

Extended Forecast for

10 Miles SSW Winchester ID

Winter Weather Advisory December 26, 04:00pm until December 27, 10:00am

Click here for hazard details and duration

Winter Weather Advisory

Overnight
Low: 34 °F
Snow Likely
Friday
High: 37 °F
Snow Likely
Friday Night
Low: 22 °F
Snow
Saturday
High: 26 °F
Snow Likely
then Chance
Snow
Saturday Night
Low: 14 °F
Partly Cloudy
Sunday
High: 26 °F
Mostly Sunny
Sunday Night
Low: 16 °F
Partly Cloudy
Monday
High: 29 °F
Partly Sunny
Monday Night
Low: 21 °F
Mostly Cloudy

Detailed Forecast

Overnight

Snow likely, mainly after 4am. Mostly cloudy, with a steady temperature around 34. South wind around 6 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of less than a half inch possible.

Friday

Snow likely, mainly after 4pm. Mostly cloudy, with a high near 37. Southwest wind 7 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

Friday Night

Snow. Low around 22. Southwest wind 11 to 13 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

Saturday

Snow likely, mainly before 10am. Partly sunny, with a high near 26. West wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

Saturday Night

Partly cloudy, with a low around 14. Light and variable wind.

Sunday

Mostly sunny, with a high near 26.

Sunday Night

Partly cloudy, with a low around 16.

Monday

Partly sunny, with a high near 29.

Monday Night

Mostly cloudy, with a low around 21.

Tuesday

Mostly cloudy, with a high near 33.