7-Day Forecast 40.16°N 105.09°W (Text-Only)
NWS Forecast for: Longmont CO
Issued by: National Weather Service Denver-Boulder, CO
Last Update: 12:47 pm MDT Apr 10, 2026
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  • This
    Afternoon

    This Afternoon: A chance of showers, with thunderstorms also possible after 3pm.  Mostly cloudy, with a high near 66. East northeast wind around 8 mph becoming south southeast.  Chance of precipitation is 40%.

    High: 66 °F

    Chance
    Showers

  • Tonight

    Tonight: A 30 percent chance of showers before 9pm.  Mostly cloudy, with a low around 43. South southeast wind 5 to 8 mph becoming calm  in the evening.

    Low: 43 °F

    Chance
    Showers then
    Mostly Cloudy

  • Saturday

    Saturday: A chance of showers between noon and 3pm, then a chance of showers and thunderstorms after 3pm.  Mostly cloudy, with a high near 76. Light and variable wind becoming south 5 to 10 mph in the afternoon. Winds could gust as high as 17 mph.  Chance of precipitation is 50%.

    High: 76 °F

    Mostly Cloudy
    then Chance
    Showers

  • Saturday
    Night

    Saturday Night: A 40 percent chance of showers before midnight.  Mostly cloudy, then gradually becoming mostly clear, with a low around 43. West northwest wind 5 to 10 mph becoming north northeast in the evening. Winds could gust as high as 22 mph.

    Low: 43 °F

    Chance
    Showers then
    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 75. Light west southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 75 °F

    Sunny


  • Sunday
    Night

    Sunday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy


  • Monday

    Monday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny


  • Monday
    Night

    Monday Night: A chance of showers, mainly after midnight.  Mostly cloudy, with a low around 40. Breezy.

    Low: 40 °F

    Chance
    Showers and
    Breezy

  • Tuesday

    Tuesday: A chance of showers.  Partly sunny, with a high near 63. Breezy.

    High: 63 °F

    Chance
    Showers and
    Breezy



  • This Afternoon: A chance of showers, with thunderstorms also possible after 3pm. Mostly cloudy, with a high near 66. East northeast wind around 8 mph becoming south southeast. Chance of precipitation is 40%.

    Tonight: A 30 percent chance of showers before 9pm. Mostly cloudy, with a low around 43. South southeast wind 5 to 8 mph becoming calm in the evening.

    Saturday: A chance of showers between noon and 3pm, then a chance of showers and thunderstorms after 3pm. Mostly cloudy, with a high near 76. Light and variable wind becoming south 5 to 10 mph in the afternoon. Winds could gust as high as 17 mph. Chance of precipitation is 50%.

    Saturday Night: A 40 percent chance of showers before midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 43. West northwest wind 5 to 10 mph becoming north northeast in the evening. Winds could gust as high as 22 mph.

    Sunday: Sunny, with a high near 75. Light west southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    Sunday Night: Partly cloudy, with a low around 43.

    Monday: Mostly sunny, with a high near 73.

    Monday Night: A chance of showers, mainly after midnight. Mostly cloudy, with a low around 40. Breezy.

    Tuesday: A chance of showers. Partly sunny, with a high near 63. Breezy.

    Tuesday Night: A chance of showers, mainly before midnight. Mostly cloudy, with a low around 39. Breezy.

    Wednesday: Sunny, with a high near 70.

    Wednesday Night: Partly cloudy, with a low around 40.

    Thursday: Mostly sunny, with a high near 76. Breezy.



    Longmont CO
     40.16°N 105.09°W (Elev. 4980 ft)

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