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

Hawaii and Guam Concerns; Record Warmth Spreads Eastward; Heavy Snow for Sierra-Nevada; Severe Weather for the Plains

A very active spring pattern with tropical concerns across the Pacific. Heavy rainfall will continue to impact Hawaii this weekend. Meanwhile we continue to monitor a developing typhoon that may affect Guam into early next week. For the Lower 48, heavy snow for mountains of California this weekend, increase threat for severe thunderstorms next week for the Plains and record warmth spreads east. Read More >

Hazardous Weather Conditions

Current conditions at

070W10895RWS1RP1 at Canyon Creek Rd (CO099)

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

NA

44°F

7°C

Humidity 83%
Wind Speed NE 5 MPH
Barometer NA
Dewpoint 39°F (4°C)
Visibility 1.24 mi
Wind Chill41°F (5°C)
Last update 12 Apr 01:18 AM MDT
Extended Forecast for

New Castle CO

  • Overnight

    Overnight: Mostly clear, with a low around 37. East wind around 5 mph.

    Low: 37 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 68. Breezy, with an east wind 5 to 10 mph becoming west southwest 15 to 20 mph in the morning. Winds could gust as high as 35 mph.

    High: 68 °F

    Sunny then
    Mostly Sunny
    and Breezy

  • Sunday Night

    Sunday Night: A 30 percent chance of showers before midnight. Mostly cloudy, with a low around 37. Breezy, with a west wind 15 to 20 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 30 mph.

    Low: 37 °F

    Chance
    Showers and
    Breezy then
    Mostly Cloudy

  • Monday

    Monday: A slight chance of snow showers before 9am, then a slight chance of rain showers. Some thunder is also possible. Mostly sunny, with a high near 62. West southwest wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    High: 62 °F

    Slight Chance
    Rain/Snow
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: A chance of rain showers before midnight, then rain likely, possibly mixed with snow showers between midnight and 3am, then snow showers likely after 3am. Some thunder is also possible. Mostly cloudy, with a low around 35. West southwest wind 5 to 15 mph becoming southeast after midnight. Chance of precipitation is 70%.

    Low: 35 °F

    Chance
    Showers then
    Rain/Snow
    Likely

  • Tuesday

    Tuesday: Snow showers before 9am, then rain, possibly mixed with snow showers between 9am and noon, then rain showers after noon. Some thunder is also possible. High near 54. Chance of precipitation is 80%.

    High: 54 °F

    Rain/Snow
    then Showers

  • Tuesday Night

    Tuesday Night: A chance of rain showers before 9pm, then a chance of snow showers. Mostly cloudy, with a low around 31. Chance of precipitation is 40%.

    Low: 31 °F

    Chance
    Rain/Snow
    then Slight
    Chance Snow
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 60.

    High: 60 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 32.

    Low: 32 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 37. East wind around 5 mph.
Sunday
Sunny, with a high near 68. Breezy, with an east wind 5 to 10 mph becoming west southwest 15 to 20 mph in the morning. Winds could gust as high as 35 mph.
Sunday Night
A 30 percent chance of showers before midnight. Mostly cloudy, with a low around 37. Breezy, with a west wind 15 to 20 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 30 mph.
Monday
A slight chance of snow showers before 9am, then a slight chance of rain showers. Some thunder is also possible. Mostly sunny, with a high near 62. West southwest wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Monday Night
A chance of rain showers before midnight, then rain likely, possibly mixed with snow showers between midnight and 3am, then snow showers likely after 3am. Some thunder is also possible. Mostly cloudy, with a low around 35. West southwest wind 5 to 15 mph becoming southeast after midnight. Chance of precipitation is 70%.
Tuesday
Snow showers before 9am, then rain, possibly mixed with snow showers between 9am and noon, then rain showers after noon. Some thunder is also possible. High near 54. Chance of precipitation is 80%.
Tuesday Night
A chance of rain showers before 9pm, then a chance of snow showers. Mostly cloudy, with a low around 31. Chance of precipitation is 40%.
Wednesday
Mostly sunny, with a high near 60.
Wednesday Night
Partly cloudy, with a low around 32.
Thursday
Sunny, with a high near 64. Breezy.
Thursday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 34.
Friday
A chance of rain and snow showers. Partly sunny, with a high near 55.
Friday Night
A chance of snow showers. Mostly cloudy, with a low around 24.
Saturday
Mostly sunny, with a high near 53.
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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:
12:32 am MDT Apr 12, 2026
Forecast Valid:
1am MDT Apr 12, 2026-6pm MDT Apr 18, 2026
 
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