National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

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 >

Current conditions at

DW5434 Heppner (D5434)

Lat: 45.24967°NLon: 119.73117°WElev: 2600.0ft.

NA

37°F

3°C

Humidity 94%
Wind Speed WNW 0 MPH
Barometer 29.6 in (1002.37 mb)
Dewpoint 35°F (2°C)
Visibility NA
Last update 25 Dec 11:15 AM PST
Extended Forecast for

Lonerock OR

  • Christmas Day

    Christmas Day: A 30 percent chance of rain, mainly between 1pm and 4pm. Mostly sunny, with a high near 52. South wind 14 to 16 mph, with gusts as high as 30 mph.

    High: 52 °F

    Chance Rain

  • Tonight

    Tonight: A slight chance of rain before 1am, then rain likely, possibly mixed with snow. Snow level 3900 feet. Mostly cloudy, with a low around 35. South wind 7 to 9 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 35 °F

    Slight Chance
    Rain then
    Rain/Snow
    Likely

  • Friday

    Friday: Rain and snow before 10am, then rain likely between 10am and 1pm, then rain and snow likely after 1pm. Snow level 3400 feet. High near 44. Southwest wind 9 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 44 °F

    Rain/Snow

  • Friday Night

    Friday Night: Snow likely, mainly before 4am. Mostly cloudy, with a low around 29. West wind 14 to 17 mph, with gusts as high as 32 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Low: 29 °F

    Snow Likely

  • Saturday

    Saturday: A 40 percent chance of snow before 10am. Mostly cloudy, with a high near 36. West wind 11 to 14 mph, with gusts as high as 25 mph.

    High: 36 °F

    Chance Snow
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 24.

    Low: 24 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 38.

    High: 38 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 40.

    High: 40 °F

    Partly Sunny

Detailed Forecast

Christmas Day
A 30 percent chance of rain, mainly between 1pm and 4pm. Mostly sunny, with a high near 52. South wind 14 to 16 mph, with gusts as high as 30 mph.
Tonight
A slight chance of rain before 1am, then rain likely, possibly mixed with snow. Snow level 3900 feet. Mostly cloudy, with a low around 35. South wind 7 to 9 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Friday
Rain and snow before 10am, then rain likely between 10am and 1pm, then rain and snow likely after 1pm. Snow level 3400 feet. High near 44. Southwest wind 9 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Friday Night
Snow likely, mainly before 4am. Mostly cloudy, with a low around 29. West wind 14 to 17 mph, with gusts as high as 32 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Saturday
A 40 percent chance of snow before 10am. Mostly cloudy, with a high near 36. West wind 11 to 14 mph, with gusts as high as 25 mph.
Saturday Night
Mostly cloudy, with a low around 24.
Sunday
Mostly sunny, with a high near 38.
Sunday Night
Partly cloudy, with a low around 25.
Monday
Partly sunny, with a high near 40.
Monday Night
Mostly cloudy, with a low around 27.
Tuesday
Partly sunny, with a high near 43.
Tuesday Night
Partly cloudy, with a low around 30.
Wednesday
Partly sunny, with a high near 46.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lonerock OR
 45.08°N 119.89°W (Elev. 2992 ft)
Last Update:
11:16 am PST Dec 25, 2025
Forecast Valid:
11am PST Dec 25, 2025-6pm PST Dec 31, 2025
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation