80817 Weather (Fountain, CO)

Weather forecast for: Fountain CO

Last Update: 4:12 am MDT Sep 30, 2026

Overnight: Showers and possibly a thunderstorm. Low around 54. North wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Wednesday: Showers and possibly a thunderstorm. High near 60. Breezy, with a north wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

Wednesday Night: Showers and possibly a thunderstorm before 9pm, then showers likely. Low around 48. Breezy, with a north wind 20 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

Thursday: A 30 percent chance of showers, mainly before 7am. Increasing clouds, with a high near 66. Windy, with a north wind 20 to 30 mph decreasing to 10 to 20 mph in the afternoon. New precipitation amounts of less than a tenth of an inch possible.

Thursday Night: Partly cloudy, with a low around 44. Northeast wind 5 to 10 mph becoming light and variable after midnight.

Friday: Sunny, with a high near 69. Light and variable wind becoming south southeast 10 to 15 mph in the morning.

Friday Night: Mostly clear, with a low around 45. South southeast wind 10 to 15 mph becoming light and variable in the evening.

Saturday: Sunny, with a high near 78. Light and variable wind becoming east southeast 5 to 10 mph in the afternoon.

Saturday Night: Mostly clear, with a low around 48. East wind around 5 mph becoming north after midnight.

Sunday: Sunny, with a high near 74. South southeast wind 5 to 15 mph.

Sunday Night: Mostly clear, with a low around 48. South southeast wind 5 to 10 mph becoming east after midnight.

Monday: Sunny, with a high near 79. Calm wind becoming south southeast around 5 mph in the afternoon.

Monday Night: Partly cloudy, with a low around 52. South southeast wind around 5 mph becoming northwest after midnight.

Tuesday: Sunny, with a high near 81. Northwest wind 5 to 10 mph becoming north northeast in the afternoon.