Delta, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Delta, a city in Delta County, Colorado.
Tonight
46°F
Slight Chance Showers And Thunderstorms then Mostly Clear
A slight chance of showers and thunderstorms before 9pm. Mostly clear, with a low around 46. Northwest wind 0 to 5 mph.
7-day forecast for Delta
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 46°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 0 to 5 mph NW | 14% |
| Sunday | 78°F | Sunny | 0 to 10 mph N | 0% |
| Sunday Night | 44°F | Mostly Clear | 0 to 5 mph ENE | 0% |
| Monday | 81°F | Mostly Sunny | 0 to 5 mph ENE | 0% |
| Monday Night | 46°F | Partly Cloudy | 0 to 5 mph N | 2% |
| Tuesday | 81°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 mph SE | 23% |
| Tuesday Night | 47°F | Chance Showers And Thunderstorms | 0 to 5 mph SE | 52% |
| Wednesday | 77°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 0 to 5 mph SE | 19% |
| Wednesday Night | 46°F | Partly Cloudy | 0 to 5 mph N | 7% |
| Thursday | 79°F | Mostly Sunny | 0 mph | 9% |
| Thursday Night | 48°F | Chance Showers And Thunderstorms | 0 mph | 28% |
| Friday | 76°F | Chance Rain Showers | 0 mph | 36% |
| Friday Night | 47°F | Chance Showers And Thunderstorms | 0 mph | 36% |
| Saturday | 78°F | Chance Rain Showers | 0 to 5 mph SSW | 35% |
Forecast source: National Weather Service (api.weather.gov) for Delta (38.757, -108.088). Updated through the day.
Growing snapshot for Delta
Last spring frost
May 1
First fall frost
Oct 7
Growing season
159 days
Hardiness zone
6b
More local growing data for Delta: nearby ZIP 81410 weather · frost dates · planting calendar · Colorado frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Delta 3E, Co (4.7 mi from Delta). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.