National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
7-Day Forecast 40.56°N 105.07°W (Text-Only)
NWS Forecast for: Fort Collins CO
Issued by: National Weather Service Denver-Boulder, CO
Last Update: 12:46 pm MDT May 15, 2026		Print

  • Tonight

    Tonight: Mostly cloudy, with a low around 50. South wind 5 to 9 mph becoming north in the evening. Winds could gust as high as 16 mph.

    Low: 50 °F

    Mostly Cloudy



  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 81. Light and variable wind becoming south southeast 6 to 11 mph in the morning. Winds could gust as high as 20 mph.

    High: 81 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Saturday
    Night

    Saturday Night: A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and 11pm. Mostly cloudy, with a low around 48. South wind 6 to 11 mph becoming north after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 20%.

    Low: 48 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of showers, then showers and possibly a thunderstorm after noon. High near 69. North northwest wind 7 to 10 mph becoming east in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 80%.

    High: 69 °F

    Slight Chance
    Showers then
    Showers

  • Sunday
    Night

    Sunday Night: Showers and possibly a thunderstorm. Low around 39. Breezy, with a north wind 11 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.

    Low: 39 °F

    Showers and
    Breezy


  • Monday

    Monday: Rain, possibly mixed with snow showers. Some thunder is also possible. High near 49. Breezy. Chance of precipitation is 90%.

    High: 49 °F

    Rain/Snow and
    Breezy


  • Monday
    Night

    Monday Night: A 20 percent chance of showers before midnight. Partly cloudy, with a low around 33. Breezy.

    Low: 33 °F

    Slight Chance
    Showers and
    Breezy then
    Partly Cloudy

  • Tuesday

    Tuesday: A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 57.

    High: 57 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday
    Night

    Tuesday Night: A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 37.

    Low: 37 °F

    Chance
    Showers




    • Tonight: Mostly cloudy, with a low around 50. South wind 5 to 9 mph becoming north in the evening. Winds could gust as high as 16 mph.

    Saturday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 81. Light and variable wind becoming south southeast 6 to 11 mph in the morning. Winds could gust as high as 20 mph.

    Saturday Night: A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and 11pm. Mostly cloudy, with a low around 48. South wind 6 to 11 mph becoming north after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 20%.

    Sunday: A slight chance of showers, then showers and possibly a thunderstorm after noon. High near 69. North northwest wind 7 to 10 mph becoming east in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 80%.

    Sunday Night: Showers and possibly a thunderstorm. Low around 39. Breezy, with a north wind 11 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.

    Monday: Rain, possibly mixed with snow showers. Some thunder is also possible. High near 49. Breezy. Chance of precipitation is 90%.

    Monday Night: A 20 percent chance of showers before midnight. Partly cloudy, with a low around 33. Breezy.

    Tuesday: A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 57.

    Tuesday Night: A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 37.

    Wednesday: A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 66.

    Wednesday Night: A slight chance of showers. Partly cloudy, with a low around 41.

    Thursday: A slight chance of showers and thunderstorms. Mostly sunny, with a high near 72.

    Thursday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 44.

    Friday: Mostly sunny, with a high near 78.


    Fort Collins CO
     40.56°N 105.07°W (Elev. 4984 ft)

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