7-Day Forecast 40°N 105.3°W (Text-Only)
NWS Forecast for: 4 Miles SW Boulder CO
Issued by: National Weather Service Denver-Boulder, CO
Last Update: 12:46 am MDT Aug 11, 2026
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  • This
    Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms, mainly after 3pm.  Patchy smoke. Partly sunny, with a temperature falling to around 82 by 5pm. Light and variable wind becoming north northwest 5 to 7 mph.

    High: 86 °F

    Chance
    T-storms


  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 9pm.  Patchy smoke. Mostly cloudy, then gradually becoming mostly clear, with a low around 67. West southwest wind 6 to 8 mph.

    Low: 67 °F

    Slight Chance
    T-storms then
    Patchy Smoke

  • Wednesday

    Wednesday: A chance of showers and thunderstorms between noon and 3pm, then showers likely and possibly a thunderstorm after 3pm.  Patchy smoke before 4pm. Partly sunny, with a high near 83. Calm wind becoming east around 5 mph in the afternoon.  Chance of precipitation is 70%.

    High: 83 °F

    Patchy Smoke
    then Showers
    Likely

  • Wednesday
    Night

    Wednesday Night: Showers likely and possibly a thunderstorm.  Patchy smoke before 7pm. Mostly cloudy, with a low around 60. Light west wind.  Chance of precipitation is 70%.

    Low: 60 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Thursday

    Thursday: A chance of showers, then showers and possibly a thunderstorm after noon.  High near 72. Light and variable wind.  Chance of precipitation is 90%.

    High: 72 °F

    Chance
    Showers then
    T-storms

  • Thursday
    Night

    Thursday Night: Showers and possibly a thunderstorm.  Low around 56. Chance of precipitation is 80%.

    Low: 56 °F

    Showers then
    Chance
    Showers

  • Friday

    Friday: A slight chance of showers, then showers and possibly a thunderstorm after noon.  High near 75. Chance of precipitation is 90%.

    High: 75 °F

    Slight Chance
    Showers then
    T-storms

  • Friday
    Night

    Friday Night: Showers likely and possibly a thunderstorm before midnight, then a slight chance of showers.  Mostly cloudy, with a low around 55.

    Low: 55 °F

    Showers
    Likely


  • Saturday

    Saturday: Showers and thunderstorms likely after noon.  Partly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny
    then T-storms
    Likely



  • This Afternoon: A 30 percent chance of showers and thunderstorms, mainly after 3pm. Patchy smoke. Partly sunny, with a temperature falling to around 82 by 5pm. Light and variable wind becoming north northwest 5 to 7 mph.

    Tonight: A 20 percent chance of showers and thunderstorms before 9pm. Patchy smoke. Mostly cloudy, then gradually becoming mostly clear, with a low around 67. West southwest wind 6 to 8 mph.

    Wednesday: A chance of showers and thunderstorms between noon and 3pm, then showers likely and possibly a thunderstorm after 3pm. Patchy smoke before 4pm. Partly sunny, with a high near 83. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 70%.

    Wednesday Night: Showers likely and possibly a thunderstorm. Patchy smoke before 7pm. Mostly cloudy, with a low around 60. Light west wind. Chance of precipitation is 70%.

    Thursday: A chance of showers, then showers and possibly a thunderstorm after noon. High near 72. Light and variable wind. Chance of precipitation is 90%.

    Thursday Night: Showers and possibly a thunderstorm. Low around 56. Chance of precipitation is 80%.

    Friday: A slight chance of showers, then showers and possibly a thunderstorm after noon. High near 75. Chance of precipitation is 90%.

    Friday Night: Showers likely and possibly a thunderstorm before midnight, then a slight chance of showers. Mostly cloudy, with a low around 55.

    Saturday: Showers and thunderstorms likely after noon. Partly sunny, with a high near 76.

    Saturday Night: A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 54.

    Sunday: Showers and thunderstorms likely. Partly sunny, with a high near 77.

    Sunday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 55.

    Monday: A chance of showers and thunderstorms. Partly sunny, with a high near 80.



    4 Miles SW Boulder CO
     40°N 105.3°W (Elev. 6509 ft)

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