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Holly Hills, CO Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Holly Hills, a community in Denver County, Colorado.

This Afternoon
79°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 3pm, then showers and thunderstorms likely between 3pm and 4pm, then a chance of showers and thunderstorms. Partly sunny. High near 79, with temperatures falling to around 71 in the afternoon. Northeast wind around 8 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.

7-day forecast for Holly Hills

WhenTempForecastWindPrecip
This Afternoon 79°F Chance Showers And Thunderstorms 8 mph NE 68%
Tonight 52°F Chance Showers And Thunderstorms then Partly Cloudy 2 to 6 mph SSE 40%
Sunday 70°F Chance Showers And Thunderstorms 2 to 9 mph NNE 27%
Sunday Night 51°F Slight Chance Showers And Thunderstorms then Partly Cloudy 1 to 7 mph ESE 23%
Monday 74°F Sunny 1 to 8 mph ENE 2%
Monday Night 52°F Partly Cloudy 3 to 8 mph SSE 8%
Tuesday 79°F Mostly Sunny 3 to 7 mph SE 9%
Tuesday Night 55°F Mostly Cloudy 5 to 9 mph S 10%
Wednesday 81°F Partly Sunny 2 to 6 mph N 5%
Wednesday Night 56°F Mostly Cloudy 2 to 6 mph S 9%
Thursday 81°F Mostly Sunny 2 to 8 mph ESE 7%
Thursday Night 58°F Mostly Cloudy 3 to 8 mph SSE 13%
Friday 81°F Mostly Sunny then Chance Showers And Thunderstorms 3 to 10 mph SSE 27%
Friday Night 57°F Chance Rain Showers 5 to 10 mph S 28%

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

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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 Sep 19, 2026.