Upper Witter Gulch, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Upper Witter Gulch, a community in Clear Creek County, Colorado.
Tonight
26°F
Partly Cloudy
Partly cloudy, with a low around 26. West wind around 3 mph.
7-day forecast for Upper Witter Gulch
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 26°F | Partly Cloudy | 3 mph W | 0% |
| Wednesday | 43°F | Snow Showers Likely | 2 to 10 mph NE | 56% |
| Wednesday Night | 25°F | Chance Snow Showers then Mostly Cloudy | 5 mph NW | 38% |
| Thursday | 49°F | Sunny | 2 to 8 mph E | 0% |
| Thursday Night | 27°F | Partly Cloudy | 6 mph SW | 1% |
| Friday | 49°F | Slight Chance Snow Showers | 1 to 7 mph N | 19% |
| Friday Night | 26°F | Slight Chance Snow Showers then Partly Cloudy | 3 to 8 mph WNW | 19% |
| Saturday | 52°F | Sunny | 1 to 12 mph N | 6% |
| Saturday Night | 28°F | Clear | 2 to 7 mph W | 2% |
| Sunday | 60°F | Sunny | 5 to 12 mph WNW | 0% |
| Sunday Night | 35°F | Mostly Clear | 8 to 12 mph W | 0% |
| Monday | 59°F | Mostly Sunny | 2 to 10 mph NNW | 1% |
| Monday Night | 34°F | Partly Cloudy | 2 to 6 mph WNW | 1% |
| Tuesday | 55°F | Mostly Sunny | 6 mph NW | 7% |
Forecast source: National Weather Service (api.weather.gov) for Upper Witter Gulch (39.661, -105.427). Updated through the day.
Growing snapshot for Upper Witter Gulch
Last spring frost
May 23
First fall frost
Sep 22
Growing season
118 days
Hardiness zone
5b
More local growing data for Upper Witter Gulch: nearby ZIP 80439 weather · frost dates · planting calendar · Colorado frost dates
Nearby towns & communities
Blue Valley
Brook Forest
Downieville-Lawson-Dumont
Echo Hills
Empire
Floyd Hill
Georgetown
Pine Valley
Silver Plume
St. Mary's
Upper Bear Creek
Climate data from the nearest NOAA station, Evergreen, Co (6.7 mi from Upper Witter Gulch). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.