Harman US

Arvada, CO Weather & Growing Conditions

Overnight
35°F
Mostly Cloudy
Mostly cloudy, with a low around 35. West southwest wind around 3 mph.

7-day forecast

WhenTempForecastWindPrecip
Overnight 35°F Mostly Cloudy 3 mph WSW 0%
Wednesday 54°F Partly Sunny then Slight Chance Rain Showers 2 to 7 mph NNE 20%
Wednesday Night 36°F Slight Chance Rain Showers then Mostly Cloudy 2 to 7 mph NW 20%
Thursday 57°F Sunny 2 to 6 mph SSE 0%
Thursday Night 37°F Partly Cloudy 2 mph WSW 1%
Friday 55°F Mostly Sunny 5 mph NNE 13%
Friday Night 35°F Mostly Clear 6 mph WNW 13%
Saturday 58°F Sunny 2 to 8 mph ESE 1%
Saturday Night 35°F Mostly Clear 5 mph SW 0%
Sunday 65°F Sunny 2 to 9 mph SSW 0%
Sunday Night 40°F Mostly Clear 5 to 10 mph W 0%
Monday 65°F Sunny 2 to 7 mph NNE 0%
Monday Night 39°F Partly Cloudy 3 mph WNW 0%
Tuesday 63°F Mostly Sunny 3 mph NE 0%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Arvada, CO

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

Explore more for Arvada, CO: full frost dates · planting calendar · Colorado frost dates

Climate data from the nearest NOAA station, Wheat Ridge 2, Co (5.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.