Calhan, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Calhan, a town in El Paso County, Colorado.
Overnight
33°F
Mostly Clear
Mostly clear, with a low around 33. Southwest wind around 5 mph.
7-day forecast for Calhan
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 33°F | Mostly Clear | 5 mph SW | 0% |
| Wednesday | 53°F | Mostly Sunny | 5 to 10 mph SSE | 11% |
| Wednesday Night | 32°F | Chance Rain Showers then Slight Chance Rain And Snow Showers | 10 to 15 mph NNE | 33% |
| Thursday | 54°F | Sunny | 5 to 15 mph N | 4% |
| Thursday Night | 32°F | Partly Cloudy | 5 to 10 mph S | 0% |
| Friday | 54°F | Mostly Sunny | 5 to 10 mph NNW | 3% |
| Friday Night | 31°F | Mostly Clear | 5 mph NNW | 3% |
| Saturday | 56°F | Sunny | 5 mph N | 2% |
| Saturday Night | 33°F | Mostly Clear | 5 to 10 mph W | 0% |
| Sunday | 62°F | Sunny | 10 mph SSW | 0% |
| Sunday Night | 39°F | Mostly Clear | 5 to 10 mph W | 0% |
| Monday | 65°F | Sunny | 5 mph NE | 0% |
| Monday Night | 38°F | Partly Cloudy | 5 to 10 mph SSW | 0% |
| Tuesday | 61°F | Mostly Sunny | 5 to 10 mph SSW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Calhan (39.034, -104.299). Updated through the day.
Growing snapshot for Calhan
Last spring frost
May 9
First fall frost
Oct 4
Growing season
146 days
Hardiness zone
5b
More local growing data for Calhan: nearby ZIP 80808 weather · frost dates · planting calendar · Colorado frost dates
Nearby towns & communities
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Climate data from the nearest NOAA station, Rush 1N, Co (15.2 mi from Calhan). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.