Arvada, CO Weather & Growing Conditions
This Afternoon
67°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly cloudy. High near 67, with temperatures falling to around 61 in the afternoon. West wind around 3 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 67°F | Chance Showers And Thunderstorms | 3 mph W | 50% |
| Tonight | 45°F | Chance Showers And Thunderstorms then Partly Cloudy | 3 mph WNW | 28% |
| Sunday | 63°F | Chance Showers And Thunderstorms | 5 mph NNW | 25% |
| Sunday Night | 42°F | Slight Chance Rain Showers then Partly Cloudy | 0 to 3 mph NW | 22% |
| Monday | 64°F | Sunny | 0 to 7 mph SE | 2% |
| Monday Night | 46°F | Partly Cloudy | 3 mph NNW | 3% |
| Tuesday | 70°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 mph SE | 21% |
| Tuesday Night | 48°F | Mostly Cloudy | 5 mph SSW | 13% |
| Wednesday | 71°F | Partly Sunny then Slight Chance Showers And Thunderstorms | 1 to 5 mph NNW | 23% |
| Wednesday Night | 48°F | Mostly Cloudy | 1 to 6 mph NW | 10% |
| Thursday | 71°F | Mostly Sunny | 7 mph SSE | 14% |
| Thursday Night | 50°F | Slight Chance Rain Showers then Mostly Cloudy | 3 mph SW | 15% |
| Friday | 70°F | Partly Sunny then Chance Showers And Thunderstorms | 1 to 5 mph S | 41% |
| Friday Night | 51°F | Chance Rain Showers | 2 to 6 mph SW | 29% |
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
5b
Explore more for Arvada, CO: full frost dates · planting calendar · Colorado frost dates
Climate data from the nearest NOAA station, Ralston Rsvr, Co (4.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.