Harman US

Sterling Ranch, CO Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Sterling Ranch, a community in Douglas County, Colorado.

Overnight
33°F
Mostly Cloudy
Mostly cloudy, with a low around 33. South southwest wind around 5 mph.

7-day forecast for Sterling Ranch

WhenTempForecastWindPrecip
Overnight 33°F Mostly Cloudy 5 mph SSW 0%
Wednesday 56°F Partly Sunny then Chance Rain Showers 3 to 8 mph ESE 44%
Wednesday Night 34°F Chance Rain Showers then Mostly Cloudy 1 to 7 mph NW 44%
Thursday 58°F Sunny 1 to 7 mph SE 0%
Thursday Night 34°F Partly Cloudy 1 to 6 mph SSW 0%
Friday 57°F Mostly Sunny 6 mph NNW 12%
Friday Night 32°F Partly Cloudy 6 mph W 12%
Saturday 60°F Sunny 2 to 9 mph E 2%
Saturday Night 32°F Mostly Clear 3 to 7 mph S 0%
Sunday 68°F Sunny 1 to 10 mph S 0%
Sunday Night 37°F Mostly Clear 3 to 9 mph SW 0%
Monday 67°F Sunny 2 to 8 mph ESE 0%
Monday Night 37°F Partly Cloudy 5 mph W 0%
Tuesday 66°F Mostly Sunny 5 mph SE 0%

Forecast source: National Weather Service (api.weather.gov) for Sterling Ranch (39.493, -105.048). Updated through the day.

Growing snapshot for Sterling Ranch

Last spring frost
May 8
First fall frost
Oct 3
Growing season
147 days
Hardiness zone
5b

More local growing data for Sterling Ranch: nearby ZIP 80125 weather · frost dates · planting calendar · Colorado frost dates

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Climate data from the nearest NOAA station, Kassler, Co (1.8 mi from Sterling Ranch). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.