Hartman, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hartman, a town in Prowers County, Colorado.
Overnight
34°F
Mostly Clear
Mostly clear, with a low around 34. West northwest wind around 5 mph.
7-day forecast for Hartman
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 34°F | Mostly Clear | 5 mph WNW | 0% |
| Wednesday | 60°F | Mostly Sunny | 5 to 10 mph SSE | 10% |
| Wednesday Night | 37°F | Showers And Thunderstorms | 10 mph NE | 75% |
| Thursday | 56°F | Chance Rain Showers then Mostly Sunny | 5 to 10 mph N | 27% |
| Thursday Night | 30°F | Mostly Clear | 0 to 5 mph WNW | 0% |
| Friday | 58°F | Partly Sunny | 0 to 10 mph SSE | 0% |
| Friday Night | 32°F | Partly Cloudy | 5 mph SSE | 3% |
| Saturday | 60°F | Sunny | 5 to 10 mph NW | 3% |
| Saturday Night | 32°F | Mostly Clear | 5 mph NW | 0% |
| Sunday | 63°F | Sunny | 5 mph SW | 0% |
| Sunday Night | 35°F | Mostly Clear | 5 mph SW | 0% |
| Monday | 67°F | Sunny | 5 mph NW | 0% |
| Monday Night | 36°F | Partly Cloudy | 5 mph N | 0% |
| Tuesday | 65°F | Mostly Sunny | 5 mph NW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Hartman (38.121, -102.222). Updated through the day.
Growing snapshot for Hartman
Last spring frost
May 1
First fall frost
Oct 12
Growing season
163 days
Hardiness zone
6a
More local growing data for Hartman: nearby ZIP 81043 weather · frost dates · planting calendar · Colorado frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Holly, Co (6.8 mi from Hartman). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.