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

Lake Effect Snow through Friday; Heavy Rain, Thunderstorms and Mountain Snow in California

Periods of moderate to heavy lake effect snow will continue through Friday downwind of Lake Erie and Ontario. Several additional inches of accumulating snow are expected. A Pacific storm will bring heavy rain and mountain snow across California, the Southwest and Intermountain West today. Isolated severe thunderstorms and scattered flash flooding is possible across parts of southern California. Read More >

Hazardous Weather Conditions

Current conditions at

Denver - Centennial Airport (KAPA)

Lat: 39.56°NLon: 104.85°WElev: 5869ft.

Mostly Cloudy

61°F

16°C

Humidity 13%
Wind Speed W 6 mph
Barometer 29.93 in (1010.1 mb)
Dewpoint 9°F (-13°C)
Visibility 10.00 mi
Last update 1 Jan 11:53 am MST
Extended Forecast for

Castle Rock CO

  • New Year's Day

    New Year's Day: Cloudy, with a high near 63. West southwest wind 5 to 7 mph becoming north northwest.

    High: 63 °F

    Cloudy

  • Tonight

    Tonight: Cloudy, then gradually becoming partly cloudy, with a low around 37. South southwest wind 5 to 8 mph.

    Low: 37 °F

    Decreasing
    Clouds

  • Friday

    Friday: Partly sunny, with a high near 59. Southwest wind 7 to 9 mph becoming north northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 59 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 33. West northwest wind around 8 mph becoming southwest after midnight. Winds could gust as high as 15 mph.

    Low: 33 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 64. South southwest wind 3 to 6 mph.

    High: 64 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 35.

    Low: 35 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 62.

    High: 62 °F

    Mostly Sunny

Detailed Forecast

New Year's Day
Cloudy, with a high near 63. West southwest wind 5 to 7 mph becoming north northwest.
Tonight
Cloudy, then gradually becoming partly cloudy, with a low around 37. South southwest wind 5 to 8 mph.
Friday
Partly sunny, with a high near 59. Southwest wind 7 to 9 mph becoming north northwest in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Mostly clear, with a low around 33. West northwest wind around 8 mph becoming southwest after midnight. Winds could gust as high as 15 mph.
Saturday
Mostly sunny, with a high near 64. South southwest wind 3 to 6 mph.
Saturday Night
Mostly cloudy, with a low around 38.
Sunday
Sunny, with a high near 66.
Sunday Night
Mostly clear, with a low around 35.
Monday
Mostly sunny, with a high near 62.
Monday Night
Partly cloudy, with a low around 33.
Tuesday
Mostly sunny, with a high near 57.
Tuesday Night
Partly cloudy, with a low around 29.
Wednesday
Mostly sunny, with a high near 53.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Castle Rock CO
 39.38°N 104.87°W (Elev. 6201 ft)
Last Update:
3:26 am MST Jan 1, 2026
Forecast Valid:
12pm MST Jan 1, 2026-6pm MST Jan 7, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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National Digital Forecast Database Weather Element Forecast

Chance of Precipitation