Westminster, CO Weather & Growing Conditions
Today
80°F
Patchy Smoke
Patchy smoke before noon, then patchy smoke and a slight chance of showers and thunderstorms. Mostly sunny, with a high near 80. East northeast wind 6 to 9 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 80°F | Patchy Smoke | 6 to 9 mph ENE | 18% |
| Tonight | 58°F | Patchy Smoke | 3 to 8 mph NNE | 12% |
| Wednesday | 87°F | Patchy Smoke | 3 to 8 mph NE | 0% |
| Wednesday Night | 61°F | Mostly Clear | 3 to 8 mph SW | 3% |
| Thursday | 95°F | Sunny | 2 to 8 mph NNE | 0% |
| Thursday Night | 64°F | Mostly Clear | 5 to 8 mph S | 2% |
| Friday | 98°F | Sunny | 3 to 8 mph SSE | 0% |
| Friday Night | 68°F | Mostly Clear | 8 mph SSE | 1% |
| Saturday | 99°F | Sunny | 5 to 8 mph N | 1% |
| Saturday Night | 68°F | Partly Cloudy | 5 to 8 mph W | 0% |
| Sunday | 99°F | Sunny | 3 to 9 mph SE | 8% |
| Sunday Night | 70°F | Partly Cloudy | 5 to 9 mph WNW | 3% |
| Monday | 97°F | Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph N | 16% |
| Monday Night | 68°F | Mostly Cloudy | 3 to 10 mph WNW | 14% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Westminster, CO
Last spring frost
May 2
First fall frost
Oct 11
Growing season
160 days
Hardiness zone
6a
Explore more for Westminster, CO: full frost dates · planting calendar · Colorado frost dates
Climate data from the nearest NOAA station, Northglenn, Co (4.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.