Fort Collins, CO Weather & Growing Conditions
Overnight
57°F
Patchy Smoke
Patchy smoke. Mostly cloudy, with a low around 57. Northeast wind around 9 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 57°F | Patchy Smoke | 9 mph NE | 14% |
| Tuesday | 76°F | Patchy Smoke | 8 to 12 mph E | 9% |
| Tuesday Night | 54°F | Patchy Smoke | 3 to 14 mph ESE | 7% |
| Wednesday | 85°F | Patchy Smoke | 3 to 12 mph E | 2% |
| Wednesday Night | 57°F | Patchy Smoke then Mostly Clear | 5 to 12 mph NE | 1% |
| Thursday | 94°F | Sunny | 3 to 10 mph NNW | 1% |
| Thursday Night | 61°F | Mostly Clear | 7 to 10 mph NW | 0% |
| Friday | 96°F | Sunny | 3 to 10 mph NNE | 0% |
| Friday Night | 62°F | Mostly Clear | 7 to 10 mph SSW | 0% |
| Saturday | 98°F | Sunny | 3 to 12 mph NW | 3% |
| Saturday Night | 64°F | Partly Cloudy | 7 to 12 mph NW | 1% |
| Sunday | 96°F | Mostly Sunny | 5 to 12 mph NE | 11% |
| Sunday Night | 66°F | Partly Cloudy | 12 mph W | 5% |
| Monday | 95°F | Mostly Sunny then Chance Showers And Thunderstorms | 7 to 13 mph N | 26% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Fort Collins, CO
Last spring frost
May 2
First fall frost
Oct 7
Growing season
157 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, Co (2.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.