Hartsel, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hartsel, a community in Park County, Colorado.
Tonight
23°F
Partly Cloudy
Partly cloudy, with a low around 23. West southwest wind around 2 mph.
7-day forecast for Hartsel
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 23°F | Partly Cloudy | 2 mph WSW | 0% |
| Wednesday | 45°F | Chance Snow Showers | 0 to 13 mph ESE | 80% |
| Wednesday Night | 22°F | Snow Showers | 3 to 8 mph N | 84% |
| Thursday | 41°F | Sunny | 1 to 5 mph WSW | 1% |
| Thursday Night | 23°F | Partly Cloudy | 2 mph W | 0% |
| Friday | 43°F | Mostly Sunny | 1 to 5 mph W | 13% |
| Friday Night | 21°F | Partly Cloudy | 6 mph NW | 13% |
| Saturday | 46°F | Sunny | 2 to 7 mph W | 2% |
| Saturday Night | 22°F | Clear | 5 mph W | 0% |
| Sunday | 54°F | Sunny | 2 to 6 mph W | 0% |
| Sunday Night | 26°F | Mostly Clear | 8 mph W | 0% |
| Monday | 53°F | Mostly Sunny | 2 to 6 mph W | 1% |
| Monday Night | 27°F | Partly Cloudy | 6 mph WSW | 1% |
| Tuesday | 52°F | Mostly Sunny | 2 to 7 mph W | 8% |
Forecast source: National Weather Service (api.weather.gov) for Hartsel (39.023, -105.801). Updated through the day.
Growing snapshot for Hartsel
Growing season
57 days
Hardiness zone
4a
More local growing data for Hartsel: nearby ZIP 80449 weather · frost dates · planting calendar · Colorado frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Antero Rsvr, Co (7 mi from Hartsel). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.