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Pine Brook Hill, CO Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Pine Brook Hill, a community in Boulder County, Colorado.

Tonight
54°F
Partly Cloudy
Partly cloudy, with a low around 54. West wind around 5 mph. New rainfall amounts less than a tenth of an inch possible.

7-day forecast for Pine Brook Hill

WhenTempForecastWindPrecip
Tonight 54°F Partly Cloudy 5 mph W 5%
Saturday 70°F Slight Chance Rain Showers then Chance Showers And Thunderstorms 1 to 5 mph WNW 68%
Saturday Night 51°F Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms 2 mph WNW 44%
Sunday 66°F Chance Showers And Thunderstorms 3 mph NE 41%
Sunday Night 50°F Chance Rain Showers then Partly Cloudy 2 mph NNW 32%
Monday 67°F Sunny 0 to 6 mph NE 5%
Monday Night 51°F Mostly Clear 2 mph N 7%
Tuesday 71°F Mostly Sunny then Chance Showers And Thunderstorms 0 to 3 mph ENE 31%
Tuesday Night 53°F Slight Chance Showers And Thunderstorms then Partly Cloudy 2 mph W 21%
Wednesday 72°F Partly Sunny then Chance Showers And Thunderstorms 0 to 3 mph NNE 31%
Wednesday Night 53°F Slight Chance Rain Showers then Mostly Cloudy 2 mph SSW 20%
Thursday 71°F Mostly Sunny then Slight Chance Showers And Thunderstorms 1 to 5 mph ESE 20%
Thursday Night 54°F Chance Rain Showers then Mostly Cloudy 2 mph SW 27%
Friday 73°F Mostly Sunny then Slight Chance Showers And Thunderstorms 0 to 5 mph NNE 23%

Forecast source: National Weather Service (api.weather.gov) for Pine Brook Hill (40.038, -105.308). Updated through the day.

Growing snapshot for Pine Brook Hill

Last spring frost
May 6
First fall frost
Oct 5
Growing season
151 days
Hardiness zone
6a

More local growing data for Pine Brook Hill: nearby ZIP 80304 weather · frost dates · planting calendar · Colorado frost dates

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Climate data from the nearest NOAA station, Boulder, Co (3.8 mi from Pine Brook Hill). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.