Fort Collins, CO Weather & Growing Conditions
Today
76°F
Patchy Smoke
Patchy smoke. Mostly sunny, with a high near 76. East southeast wind 8 to 13 mph, with gusts as high as 21 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 76°F | Patchy Smoke | 8 to 13 mph ESE | 4% |
| Tonight | 53°F | Patchy Smoke | 5 to 14 mph ESE | 6% |
| Wednesday | 85°F | Patchy Smoke | 3 to 13 mph ENE | 1% |
| Wednesday Night | 55°F | Patchy Smoke then Mostly Clear | 5 to 13 mph ENE | 1% |
| Thursday | 94°F | Sunny | 5 to 12 mph NNW | 1% |
| Thursday Night | 59°F | Mostly Clear | 8 to 12 mph NNW | 1% |
| Friday | 96°F | Sunny | 3 to 12 mph NE | 0% |
| Friday Night | 60°F | Mostly Clear | 7 to 12 mph NNE | 0% |
| Saturday | 98°F | Sunny | 5 to 15 mph NW | 2% |
| Saturday Night | 61°F | Partly Cloudy | 8 to 15 mph NNW | 1% |
| Sunday | 97°F | Sunny | 6 to 13 mph E | 8% |
| Sunday Night | 63°F | Partly Cloudy | 10 to 14 mph W | 5% |
| Monday | 96°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 7 to 14 mph NE | 22% |
| Monday Night | 62°F | Partly Cloudy | 8 to 15 mph NW | 13% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Fort Collins, CO
Last spring frost
May 3
First fall frost
Oct 6
Growing season
154 days
Hardiness zone
5b
Explore more for Fort Collins, CO: full frost dates · planting calendar · Colorado frost dates
Climate data from the nearest NOAA station, Ft Collins 4 E, Co (4.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.