Arvada, CO Weather & Growing Conditions
Today
75°F
Patchy Smoke
Patchy smoke and a slight chance of rain showers before noon, then patchy smoke and a slight chance of showers and thunderstorms. Mostly sunny, with a high near 75. Northeast wind around 8 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 75°F | Patchy Smoke | 8 mph NE | 21% |
| Tonight | 54°F | Patchy Smoke | 3 to 8 mph NNE | 12% |
| Wednesday | 83°F | Patchy Smoke then Sunny | 3 to 8 mph NE | 0% |
| Wednesday Night | 57°F | Mostly Clear | 5 to 8 mph N | 2% |
| Thursday | 91°F | Sunny | 3 to 8 mph NNW | 1% |
| Thursday Night | 62°F | Mostly Clear | 6 to 9 mph WSW | 2% |
| Friday | 94°F | Sunny | 5 to 9 mph NNE | 0% |
| Friday Night | 65°F | Mostly Clear | 6 to 10 mph SSW | 0% |
| Saturday | 95°F | Sunny | 6 to 10 mph NNE | 3% |
| Saturday Night | 66°F | Partly Cloudy | 9 mph NW | 0% |
| Sunday | 95°F | Sunny | 8 mph NNW | 10% |
| Sunday Night | 67°F | Partly Cloudy | 9 mph WNW | 3% |
| Monday | 93°F | Mostly Sunny then Chance Showers And Thunderstorms | 10 mph N | 28% |
| Monday Night | 65°F | Slight Chance Showers And Thunderstorms then Mostly Cloudy | 7 to 10 mph W | 17% |
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 Aug 4, 2026.