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 6 to 9 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 57°F | Partly Sunny | 6 to 9 mph NNE | 12% |
| Tonight | 36°F | Mostly Cloudy | 2 to 7 mph NW | 12% |
| Thursday | 58°F | Sunny | 2 to 7 mph SSE | 0% |
| Thursday Night | 34°F | Mostly Cloudy | 2 to 6 mph S | 0% |
| Friday | 56°F | Mostly Sunny | 6 mph NNW | 8% |
| Friday Night | 34°F | Mostly Clear | 6 mph WSW | 8% |
| Saturday | 60°F | Sunny | 2 to 7 mph ENE | 0% |
| Saturday Night | 34°F | Mostly Clear | 3 to 8 mph W | 0% |
| Sunday | 66°F | Sunny | 2 to 9 mph S | 0% |
| Sunday Night | 37°F | Clear | 3 to 9 mph SW | 0% |
| Monday | 67°F | Sunny | 2 to 9 mph ESE | 0% |
| Monday Night | 38°F | Partly Cloudy | 5 mph WSW | 0% |
| Tuesday | 64°F | Mostly Sunny | 5 mph NE | 1% |
| Tuesday Night | 39°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 2
First fall frost
Oct 11
Growing season
160 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, Marston Fltr Plt, Co (5.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.