Highlands Ranch, CO Weather & Growing Conditions
This Afternoon
57°F
Partly Sunny
Partly sunny. High near 57, with temperatures falling to around 51 in the afternoon. North northeast wind around 9 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 57°F | Partly Sunny | 9 mph NNE | 11% |
| Tonight | 36°F | Mostly Cloudy | 2 to 7 mph NW | 11% |
| Thursday | 58°F | Sunny | 2 to 7 mph S | 0% |
| Thursday Night | 35°F | Mostly Cloudy | 2 to 7 mph S | 0% |
| Friday | 56°F | Mostly Sunny | 6 mph NW | 8% |
| Friday Night | 35°F | Mostly Clear | 6 mph W | 8% |
| Saturday | 60°F | Sunny | 2 to 8 mph E | 0% |
| Saturday Night | 35°F | Mostly Clear | 3 to 8 mph WSW | 0% |
| Sunday | 66°F | Sunny | 2 to 10 mph S | 0% |
| Sunday Night | 38°F | Clear | 3 to 9 mph SW | 0% |
| Monday | 67°F | Sunny | 2 to 9 mph SE | 0% |
| Monday Night | 39°F | Partly Cloudy | 5 mph WSW | 0% |
| Tuesday | 64°F | Mostly Sunny | 5 mph NNE | 1% |
| Tuesday Night | 40°F | Partly Cloudy | 6 mph WSW | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Highlands Ranch, CO
Last spring frost
May 5
First fall frost
Oct 8
Growing season
154 days
Hardiness zone
6a
Explore more for Highlands Ranch, CO: full frost dates · planting calendar · Colorado frost dates
Climate data from the nearest NOAA station, Denver Centennial Ap, Co (6.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 5, 2026.