7-Day Forecast 40.66°N 104.88°W (Text-Only)
NWS Forecast for: 4 Miles N Black Hollow Reservoir CO
Issued by: National Weather Service Denver-Boulder, CO
Last Update: 12:46 pm MDT Aug 17, 2026
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  • This
    Afternoon

    This Afternoon: Mostly sunny, with a high near 89. South southeast wind around 8 mph.

    High: 89 °F

    Mostly Sunny



  • Tonight

    Tonight: Partly cloudy, with a low around 58. Southeast wind 6 to 9 mph becoming north northwest after midnight. Winds could gust as high as 15 mph.

    Low: 58 °F

    Partly Cloudy



  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 87. North northwest wind 6 to 11 mph becoming east northeast in the afternoon. Winds could gust as high as 18 mph.

    High: 87 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday
    Night

    Tuesday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 57. Northeast wind 5 to 11 mph becoming south in the evening. Winds could gust as high as 18 mph.  Chance of precipitation is 40%.

    Low: 57 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms after noon.  Partly sunny, with a high near 86. West northwest wind 5 to 11 mph becoming south southeast in the afternoon. Winds could gust as high as 21 mph.

    High: 86 °F

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday
    Night

    Wednesday Night: A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight.  Partly cloudy, with a low around 55. Chance of precipitation is 20%.

    Low: 55 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 87.

    High: 87 °F

    Sunny



  • Thursday
    Night

    Thursday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear



  • Friday

    Friday: Sunny, with a high near 91.

    High: 91 °F

    Sunny



  • This Afternoon: Mostly sunny, with a high near 89. South southeast wind around 8 mph.

    Tonight: Partly cloudy, with a low around 58. Southeast wind 6 to 9 mph becoming north northwest after midnight. Winds could gust as high as 15 mph.

    Tuesday: A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 87. North northwest wind 6 to 11 mph becoming east northeast in the afternoon. Winds could gust as high as 18 mph.

    Tuesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 57. Northeast wind 5 to 11 mph becoming south in the evening. Winds could gust as high as 18 mph. Chance of precipitation is 40%.

    Wednesday: A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 86. West northwest wind 5 to 11 mph becoming south southeast in the afternoon. Winds could gust as high as 21 mph.

    Wednesday Night: A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Partly cloudy, with a low around 55. Chance of precipitation is 20%.

    Thursday: Sunny, with a high near 87.

    Thursday Night: Mostly clear, with a low around 59.

    Friday: Sunny, with a high near 91.

    Friday Night: A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 60.

    Saturday: A slight chance of showers and thunderstorms. Mostly sunny, with a high near 89.

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 61.

    Sunday: A chance of showers and thunderstorms. Partly sunny, with a high near 89.



    4 Miles N Black Hollow Reservoir CO
     40.66°N 104.88°W (Elev. 5351 ft)

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