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.
This Afternoon
68°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 2pm, then showers and thunderstorms likely. Mostly cloudy. High near 68, with temperatures falling to around 56 in the afternoon. North wind around 6 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Upper Witter Gulch
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 68°F | Chance Showers And Thunderstorms | 6 mph N | 67% |
| Tonight | 43°F | Chance Showers And Thunderstorms then Partly Cloudy | 7 mph W | 34% |
| Saturday | 62°F | Mostly Sunny then Chance Showers And Thunderstorms | 3 to 7 mph E | 68% |
| Saturday Night | 40°F | Chance Showers And Thunderstorms then Partly Cloudy | 6 mph W | 39% |
| Sunday | 60°F | Mostly Sunny then Chance Showers And Thunderstorms | 3 to 8 mph NNE | 35% |
| Sunday Night | 38°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 2 to 6 mph NNW | 18% |
| Monday | 60°F | Sunny | 2 to 9 mph S | 7% |
| Monday Night | 41°F | Mostly Clear | 1 to 6 mph NW | 8% |
| Tuesday | 64°F | Partly Sunny then Chance Showers And Thunderstorms | 6 mph SSE | 49% |
| Tuesday Night | 42°F | Chance Showers And Thunderstorms then Mostly Cloudy | 5 mph SW | 34% |
| Wednesday | 63°F | Partly Sunny then Chance Showers And Thunderstorms | 6 mph ESE | 44% |
| Wednesday Night | 42°F | Slight Chance Rain Showers then Mostly Cloudy | 3 mph WNW | 22% |
| Thursday | 62°F | Partly Sunny then Chance Showers And Thunderstorms | 2 to 8 mph NNE | 32% |
| Thursday Night | 43°F | Chance Rain Showers then Mostly Cloudy | 5 mph WNW | 35% |
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 Sep 18, 2026.