Hidden Lake, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hidden Lake, a community in Boulder County, Colorado.
Overnight
27°F
Mostly Cloudy
Mostly cloudy, with a low around 27. West wind around 5 mph.
7-day forecast for Hidden Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 27°F | Mostly Cloudy | 5 mph W | 1% |
| Wednesday | 45°F | Partly Sunny then Chance Snow Showers | 1 to 6 mph SSE | 28% |
| Wednesday Night | 27°F | Chance Snow Showers then Mostly Cloudy | 3 mph NW | 28% |
| Thursday | 47°F | Sunny | 1 to 5 mph SE | 0% |
| Thursday Night | 31°F | Mostly Cloudy | 3 mph WSW | 3% |
| Friday | 47°F | Slight Chance Snow Showers | 1 to 5 mph WSW | 23% |
| Friday Night | 27°F | Slight Chance Snow Showers then Mostly Clear | 1 to 7 mph W | 23% |
| Saturday | 49°F | Sunny | 0 to 8 mph NW | 1% |
| Saturday Night | 29°F | Mostly Clear | 1 to 5 mph W | 0% |
| Sunday | 56°F | Sunny | 2 to 9 mph W | 0% |
| Sunday Night | 34°F | Mostly Clear | 8 mph W | 0% |
| Monday | 57°F | Sunny | 1 to 8 mph W | 0% |
| Monday Night | 34°F | Partly Cloudy | 1 to 5 mph W | 0% |
| Tuesday | 54°F | Mostly Sunny | 2 to 6 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov) for Hidden Lake (40.105, -105.478). Updated through the day.
Growing snapshot for Hidden Lake
Last spring frost
Jun 21
First fall frost
Sep 2
Growing season
71 days
Hardiness zone
5b
More local growing data for Hidden Lake: nearby ZIP 80455 weather · frost dates · planting calendar · Colorado frost dates
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Climate data from the nearest NOAA station, Boulder 14 W, Co (8.6 mi from Hidden Lake). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.