Arvada, CO Weather & Growing Conditions
Tonight
55°F
Chance Showers And Thunderstorms then Partly Cloudy
A chance of showers and thunderstorms before 8pm, then a slight chance of showers and thunderstorms between 8pm and 9pm. Partly cloudy, with a low around 55. West wind 2 to 7 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 55°F | Chance Showers And Thunderstorms then Partly Cloudy | 2 to 7 mph W | 38% |
| Saturday | 77°F | Mostly Sunny then Chance Showers And Thunderstorms | 3 to 7 mph NNW | 66% |
| Saturday Night | 52°F | Chance Showers And Thunderstorms | 1 to 6 mph W | 51% |
| Sunday | 71°F | Showers And Thunderstorms Likely | 1 to 6 mph NNE | 56% |
| Sunday Night | 50°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 6 mph ESE | 33% |
| Monday | 73°F | Sunny | 0 to 6 mph ENE | 3% |
| Monday Night | 52°F | Mostly Clear | 1 to 6 mph NNW | 13% |
| Tuesday | 77°F | Mostly Sunny | 1 to 6 mph SE | 13% |
| Tuesday Night | 54°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 1 to 5 mph SW | 19% |
| Wednesday | 77°F | Partly Sunny | 1 to 6 mph NE | 14% |
| Wednesday Night | 55°F | Slight Chance Rain Showers then Mostly Cloudy | 5 mph SW | 17% |
| Thursday | 78°F | Mostly Sunny | 2 to 6 mph N | 14% |
| Thursday Night | 55°F | Chance Rain Showers then Mostly Cloudy | 1 to 6 mph SSW | 30% |
| Friday | 80°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 1 to 7 mph SSE | 15% |
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 (4.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.