Fort Collins, CO Weather & Growing Conditions
Tonight
32°F
Mostly Clear
Mostly clear, with a low around 32. West northwest wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 32°F | Mostly Clear | 3 mph WNW | 0% |
| Wednesday | 55°F | Partly Sunny | 2 to 6 mph NE | 2% |
| Wednesday Night | 33°F | Mostly Cloudy | 3 to 8 mph NW | 1% |
| Thursday | 59°F | Sunny | 3 to 8 mph S | 0% |
| Thursday Night | 34°F | Partly Cloudy | 5 mph WSW | 1% |
| Friday | 58°F | Mostly Sunny | 5 to 8 mph S | 11% |
| Friday Night | 32°F | Partly Cloudy | 6 mph W | 11% |
| Saturday | 60°F | Sunny | 3 to 8 mph ESE | 1% |
| Saturday Night | 33°F | Clear | 5 mph W | 0% |
| Sunday | 65°F | Sunny | 2 to 7 mph SW | 0% |
| Sunday Night | 39°F | Mostly Clear | 2 to 8 mph W | 0% |
| Monday | 65°F | Sunny | 3 to 7 mph SSE | 0% |
| Monday Night | 39°F | Partly Cloudy | 6 mph W | 0% |
| Tuesday | 64°F | Mostly Sunny | 3 to 7 mph SW | 3% |
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 Nov 4, 2026.