Derby, CO Weather & Growing Conditions
This Afternoon
85°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 3pm, then a chance of showers and thunderstorms. Mostly cloudy. High near 85, with temperatures falling to around 76 in the afternoon. North northwest wind around 6 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 85°F | Chance Showers And Thunderstorms | 6 mph NNW | 46% |
| Tonight | 56°F | Chance Showers And Thunderstorms then Partly Cloudy | 2 to 8 mph WSW | 38% |
| Saturday | 77°F | Partly Sunny then Chance Showers And Thunderstorms | 2 to 8 mph E | 69% |
| Saturday Night | 53°F | Chance Showers And Thunderstorms | 1 to 7 mph SSE | 53% |
| Sunday | 72°F | Showers And Thunderstorms Likely | 2 to 7 mph ENE | 58% |
| Sunday Night | 50°F | Chance Showers And Thunderstorms then Partly Cloudy | 1 to 7 mph ESE | 34% |
| Monday | 74°F | Mostly Sunny | 1 to 8 mph NE | 2% |
| Monday Night | 52°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 1 to 8 mph S | 18% |
| Tuesday | 78°F | Mostly Sunny | 1 to 6 mph NNE | 11% |
| Tuesday Night | 55°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 2 to 6 mph S | 19% |
| Wednesday | 78°F | Partly Sunny | 2 to 6 mph NE | 13% |
| Wednesday Night | 55°F | Slight Chance Rain Showers then Mostly Cloudy | 2 to 6 mph SSW | 16% |
| Thursday | 79°F | Mostly Sunny | 2 to 7 mph N | 11% |
| Thursday Night | 56°F | Chance Rain Showers then Mostly Cloudy | 2 to 7 mph SSW | 29% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Derby, CO
Last spring frost
May 4
First fall frost
Oct 8
Growing season
156 days
Hardiness zone
6a
Explore more for Derby, CO: full frost dates · planting calendar · Colorado frost dates
Climate data from the nearest NOAA station, Denver-Stapleton, Co (6.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.