Highlands Ranch, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Highlands Ranch, a community in Douglas County, Colorado.
Overnight
54°F
Partly Cloudy
Partly cloudy. Low around 54, with temperatures rising to around 56 overnight. West southwest wind around 5 mph.
7-day forecast for Highlands Ranch
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 54°F | Partly Cloudy | 5 mph WSW | 9% |
| Saturday | 77°F | Mostly Sunny then Chance Showers And Thunderstorms | 3 to 8 mph E | 57% |
| Saturday Night | 51°F | Chance Showers And Thunderstorms then Partly Cloudy | 3 to 7 mph SSE | 42% |
| Sunday | 71°F | Mostly Sunny then Chance Showers And Thunderstorms | 3 to 12 mph NW | 32% |
| Sunday Night | 51°F | Chance Showers And Thunderstorms then Partly Cloudy | 1 to 8 mph WNW | 30% |
| Monday | 73°F | Sunny | 1 to 9 mph SE | 5% |
| Monday Night | 51°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 to 9 mph SSE | 19% |
| Tuesday | 76°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 3 to 8 mph ESE | 19% |
| Tuesday Night | 53°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 6 to 9 mph S | 15% |
| Wednesday | 77°F | Partly Sunny then Slight Chance Showers And Thunderstorms | 3 to 7 mph ESE | 15% |
| Wednesday Night | 53°F | Mostly Cloudy | 6 mph SSW | 14% |
| Thursday | 78°F | Mostly Sunny | 3 to 8 mph ESE | 12% |
| Thursday Night | 55°F | Slight Chance Rain Showers then Mostly Cloudy | 6 to 9 mph S | 16% |
| Friday | 79°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 9 mph SSE | 16% |
Forecast source: National Weather Service (api.weather.gov) for Highlands Ranch (39.541, -104.971). Updated through the day.
Growing snapshot for Highlands Ranch
Last spring frost
May 5
First fall frost
Oct 8
Growing season
154 days
Hardiness zone
6a
More local growing data for Highlands Ranch: nearby ZIP 80126 weather · frost dates · planting calendar · Colorado frost dates
Nearby towns & communities
Acres Green
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Perry Park
Roxborough Park
Sedalia
Sierra Ridge
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Westcreek
Climate data from the nearest NOAA station, Denver Centennial Ap, Co (6.4 mi from Highlands Ranch). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.