Derby, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Derby, a community in Adams County, Colorado.
Overnight
61°F
Patchy Smoke
Patchy smoke. Mostly cloudy. Low around 61, with temperatures rising to around 64 overnight. North northeast wind around 12 mph, with gusts as high as 18 mph.
7-day forecast for Derby
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 61°F | Patchy Smoke | 12 mph NNE | 12% |
| Tuesday | 81°F | Patchy Smoke | 6 to 10 mph ENE | 15% |
| Tuesday Night | 58°F | Patchy Smoke | 3 to 10 mph NE | 11% |
| Wednesday | 88°F | Patchy Smoke then Sunny | 3 to 9 mph NNE | 0% |
| Wednesday Night | 62°F | Mostly Clear | 3 to 10 mph S | 3% |
| Thursday | 96°F | Sunny | 2 to 8 mph N | 0% |
| Thursday Night | 65°F | Clear | 5 to 8 mph SSE | 2% |
| Friday | 98°F | Sunny | 3 to 9 mph SSE | 0% |
| Friday Night | 69°F | Mostly Clear | 10 mph SSE | 1% |
| Saturday | 100°F | Sunny | 5 to 9 mph NW | 0% |
| Saturday Night | 70°F | Partly Cloudy | 6 to 9 mph WSW | 0% |
| Sunday | 100°F | Sunny | 3 to 9 mph NE | 6% |
| Sunday Night | 70°F | Partly Cloudy | 5 to 9 mph WNW | 3% |
| Monday | 99°F | Sunny | 5 to 10 mph NNW | 13% |
Forecast source: National Weather Service (api.weather.gov) for Derby (39.841, -104.916). Updated through the day.
Growing snapshot for Derby
Last spring frost
May 4
First fall frost
Oct 8
Growing season
156 days
Hardiness zone
6a
More local growing data for Derby: nearby ZIP 80024 weather · frost dates · planting calendar · Colorado frost dates
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Welby
Westminster
Climate data from the nearest NOAA station, Denver-Stapleton, Co (6.2 mi from Derby). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.