Hartman, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hartman, a town in Prowers County, Colorado.
Tonight
61°F
Partly Cloudy
Partly cloudy, with a low around 61. West wind 5 to 15 mph.
7-day forecast for Hartman
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 61°F | Partly Cloudy | 5 to 15 mph W | 9% |
| Saturday | 86°F | Mostly Sunny | 5 to 10 mph NNE | 5% |
| Saturday Night | 59°F | Showers And Thunderstorms Likely | 10 to 15 mph NE | 60% |
| Sunday | 75°F | Slight Chance Rain Showers then Partly Sunny | 5 to 10 mph NE | 19% |
| Sunday Night | 55°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 to 15 mph ENE | 67% |
| Monday | 72°F | Slight Chance Rain Showers then Partly Sunny | 5 to 10 mph E | 21% |
| Monday Night | 54°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 10 mph ESE | 48% |
| Tuesday | 71°F | Chance Rain Showers | 15 to 20 mph SSE | 36% |
| Tuesday Night | 58°F | Chance Showers And Thunderstorms | 15 to 20 mph SE | 44% |
| Wednesday | 75°F | Chance Rain Showers | 20 mph SSE | 40% |
| Wednesday Night | 58°F | Chance Showers And Thunderstorms | 10 to 15 mph SSE | 34% |
| Thursday | 78°F | Chance Rain Showers | 10 mph SSE | 31% |
| Thursday Night | 58°F | Chance Showers And Thunderstorms | 10 mph SSE | 31% |
| Friday | 77°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 15 mph SSE | 23% |
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 Sep 19, 2026.