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 >

Hazardous Weather Conditions

Current conditions at

070W10895RWS1RP1 at Canyon Creek Rd (CO099)

Lat: 39.5739°NLon: 107.45295°WElev: 5679.0ft.

NA

51°F

11°C

Humidity 56%
Wind Speed E 5 MPH
Barometer NA
Dewpoint 36°F (2°C)
Visibility 1.24 mi
Last update 24 Dec 05:34 PM MST
Extended Forecast for

New Castle CO

  • Tonight

    Tonight: A 40 percent chance of showers after 3am. Mostly cloudy, with a low around 38. East wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 38 °F

    Mostly Cloudy
    then Chance
    Showers

  • Christmas Day

    Christmas Day: Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 54. East wind 5 to 10 mph becoming west in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 70%.

    High: 54 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 36. West wind around 10 mph becoming south after midnight. Chance of precipitation is 40%.

    Low: 36 °F

    Chance
    Showers

  • Friday

    Friday: A 20 percent chance of showers. Mostly cloudy, with a high near 52. Southwest wind around 10 mph, with gusts as high as 20 mph.

    High: 52 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: A chance of rain showers before 2am, then a chance of rain and snow showers. Mostly cloudy, with a low around 34. South southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.

    Low: 34 °F

    Chance
    Showers then
    Chance
    Rain/Snow

  • Saturday

    Saturday: Rain, possibly mixed with snow showers. High near 44. Chance of precipitation is 80%.

    High: 44 °F

    Rain/Snow

  • Saturday Night

    Saturday Night: A chance of rain and snow showers before 11pm, then a chance of snow showers. Mostly cloudy, with a low around 19. Chance of precipitation is 50%.

    Low: 19 °F

    Chance
    Rain/Snow
    then Chance
    Snow Showers

  • Sunday

    Sunday: A slight chance of snow showers before 11am. Mostly sunny, with a high near 35.

    High: 35 °F

    Slight Chance
    Snow Showers
    then Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 10.

    Low: 10 °F

    Mostly Clear

Detailed Forecast

Tonight
A 40 percent chance of showers after 3am. Mostly cloudy, with a low around 38. East wind 5 to 10 mph, with gusts as high as 20 mph.
Christmas Day
Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 54. East wind 5 to 10 mph becoming west in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 70%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 36. West wind around 10 mph becoming south after midnight. Chance of precipitation is 40%.
Friday
A 20 percent chance of showers. Mostly cloudy, with a high near 52. Southwest wind around 10 mph, with gusts as high as 20 mph.
Friday Night
A chance of rain showers before 2am, then a chance of rain and snow showers. Mostly cloudy, with a low around 34. South southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Saturday
Rain, possibly mixed with snow showers. High near 44. Chance of precipitation is 80%.
Saturday Night
A chance of rain and snow showers before 11pm, then a chance of snow showers. Mostly cloudy, with a low around 19. Chance of precipitation is 50%.
Sunday
A slight chance of snow showers before 11am. Mostly sunny, with a high near 35.
Sunday Night
Mostly clear, with a low around 10.
Monday
Sunny, with a high near 39.
Monday Night
Mostly clear, with a low around 15.
Tuesday
Sunny, with a high near 43.
Tuesday Night
Mostly clear, with a low around 18.
Wednesday
Mostly sunny, with a high near 46.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
New Castle CO
 39.57°N 107.53°W (Elev. 6398 ft)
Last Update:
5:02 pm MST Dec 24, 2025
Forecast Valid:
5pm MST Dec 24, 2025-6pm MST Dec 31, 2025
 
Forecast Discussion
 
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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