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
81°F
Patchy Smoke
Patchy smoke before noon, then patchy smoke and a slight chance of showers and thunderstorms. Mostly sunny. High near 81, with temperatures falling to around 78 in the afternoon. East northeast wind 6 to 9 mph. Chance of precipitation is 20%.
7-day forecast for Holly Hills
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 81°F | Patchy Smoke | 6 to 9 mph ENE | 19% |
| Tonight | 59°F | Patchy Smoke | 3 to 9 mph NNW | 11% |
| Wednesday | 88°F | Patchy Smoke then Sunny | 2 to 9 mph NNE | 0% |
| Wednesday Night | 63°F | Mostly Clear | 5 to 8 mph SSE | 4% |
| Thursday | 96°F | Sunny | 2 to 9 mph NNW | 0% |
| Thursday Night | 65°F | Mostly Clear | 5 to 9 mph SSE | 2% |
| Friday | 98°F | Sunny | 3 to 8 mph E | 0% |
| Friday Night | 70°F | Mostly Clear | 10 mph SSE | 1% |
| Saturday | 99°F | Sunny | 6 to 9 mph NNE | 0% |
| Saturday Night | 70°F | Partly Cloudy | 6 to 10 mph SSE | 0% |
| Sunday | 99°F | Sunny | 5 to 8 mph ENE | 7% |
| Sunday Night | 70°F | Partly Cloudy | 5 to 8 mph W | 3% |
| Monday | 98°F | Sunny | 5 to 10 mph NNW | 11% |
| Monday Night | 68°F | Partly Cloudy | 5 to 10 mph W | 14% |
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 Aug 4, 2026.