Blue Valley, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Blue Valley, a community in Clear Creek County, Colorado.
Today
65°F
Patchy Smoke
Patchy smoke before noon, then patchy smoke and a chance of showers and thunderstorms. Mostly sunny. High near 65, with temperatures falling to around 62 in the afternoon. Southeast wind 6 to 9 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Blue Valley
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 65°F | Patchy Smoke | 6 to 9 mph SE | 34% |
| Tonight | 49°F | Patchy Smoke | 5 to 9 mph SSW | 17% |
| Wednesday | 72°F | Mostly Sunny | 10 mph NW | 0% |
| Wednesday Night | 49°F | Mostly Clear | 5 to 10 mph SW | 1% |
| Thursday | 76°F | Sunny | 8 to 12 mph NW | 3% |
| Thursday Night | 52°F | Clear | 8 to 12 mph WNW | 1% |
| Friday | 77°F | Sunny | 9 to 13 mph N | 2% |
| Friday Night | 55°F | Mostly Clear | 5 to 14 mph SSW | 0% |
| Saturday | 78°F | Sunny | 9 to 14 mph NW | 6% |
| Saturday Night | 56°F | Partly Cloudy | 10 mph WNW | 2% |
| Sunday | 78°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 10 mph NNW | 20% |
| Sunday Night | 57°F | Partly Cloudy | 9 to 13 mph WNW | 8% |
| Monday | 76°F | Mostly Sunny then Chance Showers And Thunderstorms | 8 to 13 mph WNW | 54% |
| Monday Night | 55°F | Slight Chance Showers And Thunderstorms then Mostly Cloudy | 12 mph W | 24% |
Forecast source: National Weather Service (api.weather.gov) for Blue Valley (39.700, -105.492). Updated through the day.
Growing snapshot for Blue Valley
Last spring frost
May 23
First fall frost
Sep 22
Growing season
118 days
Hardiness zone
5b
More local growing data for Blue Valley: nearby ZIP 80439 weather · frost dates · planting calendar · Colorado frost dates
Nearby towns & communities
Brook Forest
Downieville-Lawson-Dumont
Echo Hills
Empire
Floyd Hill
Georgetown
Pine Valley
Silver Plume
St. Mary's
Upper Bear Creek
Upper Witter Gulch
Climate data from the nearest NOAA station, Evergreen, Co (6.7 mi from Blue Valley). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.