Holly Hills, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Holly Hills, a community in Denver County, Colorado.
Today
57°F
Partly Sunny then Slight Chance Rain Showers
A slight chance of rain showers after 5pm. Partly sunny. High near 57, with temperatures falling to around 54 in the afternoon. Southeast wind 3 to 7 mph. Chance of precipitation is 20%.
7-day forecast for Holly Hills
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 57°F | Partly Sunny then Slight Chance Rain Showers | 3 to 7 mph SE | 22% |
| Tonight | 36°F | Slight Chance Rain Showers then Mostly Cloudy | 1 to 6 mph NW | 22% |
| Thursday | 58°F | Sunny | 5 mph SSE | 0% |
| Thursday Night | 37°F | Partly Cloudy | 5 mph S | 0% |
| Friday | 57°F | Mostly Sunny | 5 mph NNW | 8% |
| Friday Night | 34°F | Mostly Clear | 5 mph WSW | 8% |
| Saturday | 60°F | Sunny | 2 to 6 mph E | 1% |
| Saturday Night | 35°F | Clear | 2 to 6 mph SSE | 0% |
| Sunday | 66°F | Sunny | 2 to 8 mph SSE | 0% |
| Sunday Night | 39°F | Mostly Clear | 6 mph SSW | 0% |
| Monday | 66°F | Sunny | 2 to 6 mph SE | 0% |
| Monday Night | 39°F | Partly Cloudy | 3 mph S | 0% |
| Tuesday | 65°F | Mostly Sunny | 3 mph NNE | 0% |
| Tuesday Night | 40°F | Partly Cloudy | 5 mph WSW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Holly Hills (39.668, -104.922). Updated through the day.
Growing snapshot for Holly Hills
Last spring frost
Apr 30
First fall frost
Oct 12
Growing season
165 days
Hardiness zone
6a
More local growing data for Holly Hills: nearby ZIP 80222 weather · frost dates · planting calendar · Colorado frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Denver Water Dept, Co (5.9 mi from Holly Hills). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.