Arvada, CO Weather & Growing Conditions
Overnight
33°F
Mostly Cloudy
Mostly cloudy, with a low around 33. West wind around 2 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 33°F | Mostly Cloudy | 2 mph W | 0% |
| Wednesday | 53°F | Partly Sunny then Slight Chance Rain Showers | 6 mph N | 23% |
| Wednesday Night | 35°F | Slight Chance Rain Showers then Mostly Cloudy | 6 mph NW | 23% |
| Thursday | 56°F | Sunny | 2 to 7 mph SSE | 0% |
| Thursday Night | 36°F | Partly Cloudy | 5 mph WSW | 1% |
| Friday | 54°F | Mostly Sunny then Slight Chance Rain Showers | 6 mph NNE | 16% |
| Friday Night | 33°F | Slight Chance Rain Showers then Mostly Clear | 7 mph WNW | 16% |
| Saturday | 57°F | Sunny | 2 to 10 mph SE | 1% |
| Saturday Night | 33°F | Mostly Clear | 6 mph SW | 0% |
| Sunday | 64°F | Sunny | 2 to 10 mph SSW | 0% |
| Sunday Night | 40°F | Mostly Clear | 5 to 12 mph W | 0% |
| Monday | 64°F | Sunny | 2 to 9 mph N | 0% |
| Monday Night | 39°F | Partly Cloudy | 5 mph WNW | 0% |
| Tuesday | 62°F | Mostly Sunny | 5 mph NNE | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Arvada, CO
Last spring frost
May 3
First fall frost
Oct 14
Growing season
161 days
Hardiness zone
6a
Explore more for Arvada, CO: full frost dates · planting calendar · Colorado frost dates
Climate data from the nearest NOAA station, Ralston Rsvr, Co (3.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.