Highlands Ranch, CO Weather & Growing Conditions
Overnight
55°F
Partly Cloudy
Partly cloudy, with a low around 55. Southwest wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 55°F | Partly Cloudy | 5 mph SW | 2% |
| Saturday | 77°F | Mostly Sunny then Chance Showers And Thunderstorms | 2 to 8 mph E | 58% |
| Saturday Night | 52°F | Chance Showers And Thunderstorms then Partly Cloudy | 6 mph SSE | 42% |
| Sunday | 72°F | Mostly Sunny then Chance Showers And Thunderstorms | 3 to 10 mph NW | 31% |
| Sunday Night | 52°F | Chance Showers And Thunderstorms then Partly Cloudy | 1 to 7 mph NW | 30% |
| Monday | 74°F | Sunny | 1 to 9 mph SSE | 5% |
| Monday Night | 52°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 to 9 mph SSE | 19% |
| Tuesday | 77°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 3 to 7 mph ESE | 18% |
| Tuesday Night | 54°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 3 to 9 mph S | 15% |
| Wednesday | 78°F | Partly Sunny then Slight Chance Showers And Thunderstorms | 3 to 7 mph SE | 15% |
| Wednesday Night | 55°F | Mostly Cloudy | 6 mph SSW | 14% |
| Thursday | 79°F | Mostly Sunny | 3 to 8 mph ESE | 11% |
| Thursday Night | 56°F | Slight Chance Rain Showers then Mostly Cloudy | 8 mph S | 15% |
| Friday | 80°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 9 mph S | 16% |
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 Sep 19, 2026.