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

47°F

8°C

Humidity 97%
Wind Speed SW 2 MPH
Barometer NA
Dewpoint 46°F (8°C)
Visibility 1.24 mi
Last update 25 Dec 09:13 AM MST
Extended Forecast for

New Castle CO

  • Christmas Day

    Christmas Day: Showers likely before 11am, then showers likely and possibly a thunderstorm between 11am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 54. West wind around 10 mph. Chance of precipitation is 70%.

    High: 54 °F

    Showers
    Likely

  • Tonight

    Tonight: A chance of showers and thunderstorms. Mostly cloudy, with a low around 36. Northeast wind around 10 mph. Chance of precipitation is 30%.

    Low: 36 °F

    Chance
    Showers

  • Friday

    Friday: A 20 percent chance of showers after 11am. Mostly cloudy, with a high near 53. East southeast wind around 10 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.

    High: 53 °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, becoming all snow after 2pm. Some thunder is also possible. High near 45. West southwest wind around 10 mph. Chance of precipitation is 80%.

    High: 45 °F

    Rain/Snow

  • Saturday Night

    Saturday Night: Snow showers likely. Some thunder is also possible. Mostly cloudy, with a low around 19. Chance of precipitation is 70%.

    Low: 19 °F

    Snow Showers
    Likely

  • Sunday

    Sunday: A 30 percent chance of snow showers before 11am. Mostly sunny, with a high near 32.

    High: 32 °F

    Chance Snow
    Showers then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 7.

    Low: 7 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 36.

    High: 36 °F

    Sunny

Detailed Forecast

Christmas Day
Showers likely before 11am, then showers likely and possibly a thunderstorm between 11am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 54. West wind around 10 mph. Chance of precipitation is 70%.
Tonight
A chance of showers and thunderstorms. Mostly cloudy, with a low around 36. Northeast wind around 10 mph. Chance of precipitation is 30%.
Friday
A 20 percent chance of showers after 11am. Mostly cloudy, with a high near 53. East southeast wind around 10 mph becoming southwest in the afternoon. Winds could gust 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, becoming all snow after 2pm. Some thunder is also possible. High near 45. West southwest wind around 10 mph. Chance of precipitation is 80%.
Saturday Night
Snow showers likely. Some thunder is also possible. Mostly cloudy, with a low around 19. Chance of precipitation is 70%.
Sunday
A 30 percent chance of snow showers before 11am. Mostly sunny, with a high near 32.
Sunday Night
Mostly clear, with a low around 7.
Monday
Sunny, with a high near 36.
Monday Night
Mostly clear, with a low around 13.
Tuesday
Mostly sunny, with a high near 43.
Tuesday Night
Mostly clear, with a low around 17.
Wednesday
Sunny, with a high near 47.
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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:
6:12 am MST Dec 25, 2025
Forecast Valid:
9am MST Dec 25, 2025-6pm MST Dec 31, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation