Jansen, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Jansen, a community in Las Animas County, Colorado.
This Afternoon
82°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms. Partly sunny, with a high near 82. West southwest wind around 10 mph. Chance of precipitation is 20%.
7-day forecast for Jansen
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 82°F | Slight Chance Showers And Thunderstorms | 10 mph WSW | 19% |
| Tonight | 50°F | Slight Chance Showers And Thunderstorms then Mostly Cloudy | 5 to 10 mph SW | 16% |
| Saturday | 83°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph NW | 20% |
| Saturday Night | 47°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 to 10 mph W | 15% |
| Sunday | 79°F | Sunny | 0 to 5 mph NE | 4% |
| Sunday Night | 48°F | Chance Showers And Thunderstorms | 0 to 5 mph NNE | 33% |
| Monday | 74°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 10 mph SE | 18% |
| Monday Night | 48°F | Chance Showers And Thunderstorms then Mostly Cloudy | 10 mph S | 27% |
| Tuesday | 73°F | Mostly Sunny then Showers And Thunderstorms Likely | 10 to 15 mph S | 62% |
| Tuesday Night | 49°F | Chance Showers And Thunderstorms | 15 mph SSW | 50% |
| Wednesday | 70°F | Chance Rain Showers then Chance Showers And Thunderstorms | 15 mph SSW | 54% |
| Wednesday Night | 48°F | Chance Showers And Thunderstorms | 10 mph SSW | 43% |
| Thursday | 71°F | Chance Rain Showers then Chance Showers And Thunderstorms | 5 mph S | 50% |
| Thursday Night | 48°F | Chance Showers And Thunderstorms | 5 mph SSW | 46% |
Forecast source: National Weather Service (api.weather.gov) for Jansen (37.158, -104.550). Updated through the day.
Growing snapshot for Jansen
Last spring frost
Apr 30
First fall frost
Oct 15
Growing season
167 days
Hardiness zone
6a
More local growing data for Jansen: nearby ZIP 81082 weather · frost dates · planting calendar · Colorado frost dates
Nearby towns & communities
Aguilar
Branson
Cokedale
El Moro
Hoehne
Kim
Lynn
Segundo
Starkville
Stonewall Gap
Trinidad
Valdez
Weston
Climate data from the nearest NOAA station, Trinidad, Co (4.1 mi from Jansen). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.