Highlands Ranch, CO Weather & Growing Conditions
Overnight
61°F
Patchy Smoke
Patchy smoke. Mostly cloudy. Low around 61, with temperatures rising to around 64 overnight. North northeast wind around 9 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 61°F | Patchy Smoke | 9 mph NNE | 13% |
| Tuesday | 81°F | Patchy Smoke | 8 mph ENE | 22% |
| Tuesday Night | 59°F | Patchy Smoke | 2 to 10 mph W | 14% |
| Wednesday | 89°F | Patchy Smoke then Sunny | 2 to 9 mph NNE | 0% |
| Wednesday Night | 62°F | Mostly Clear | 8 mph SSE | 5% |
| Thursday | 96°F | Sunny | 3 to 9 mph N | 0% |
| Thursday Night | 64°F | Clear | 9 mph S | 2% |
| Friday | 98°F | Sunny | 5 to 9 mph E | 0% |
| Friday Night | 69°F | Mostly Clear | 12 mph SSE | 1% |
| Saturday | 99°F | Sunny | 7 to 12 mph N | 0% |
| Saturday Night | 69°F | Partly Cloudy | 8 to 12 mph S | 1% |
| Sunday | 99°F | Sunny | 5 to 8 mph N | 8% |
| Sunday Night | 69°F | Partly Cloudy | 9 mph WSW | 3% |
| Monday | 98°F | Sunny | 7 to 10 mph WNW | 13% |
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 Aug 4, 2026.