Jansen, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Jansen, a community in Las Animas County, Colorado.
Today
84°F
Patchy Smoke then Chance Showers And Thunderstorms
Patchy smoke before noon, then a chance of showers and thunderstorms. Partly sunny, with a high near 84. East northeast wind 10 to 15 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Jansen
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 84°F | Patchy Smoke then Chance Showers And Thunderstorms | 10 to 15 mph ENE | 51% |
| Tonight | 56°F | Showers And Thunderstorms Likely then Partly Cloudy | 5 to 10 mph SW | 58% |
| Wednesday | 92°F | Sunny then Chance Showers And Thunderstorms | 5 to 10 mph SE | 33% |
| Wednesday Night | 55°F | Chance Showers And Thunderstorms then Partly Cloudy | 5 to 10 mph SSW | 26% |
| Thursday | 94°F | Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph SE | 10% |
| Thursday Night | 58°F | Mostly Clear | 10 mph SSW | 4% |
| Friday | 96°F | Sunny | 5 to 10 mph ESE | 8% |
| Friday Night | 58°F | Mostly Clear | 10 mph S | 2% |
| Saturday | 97°F | Sunny then Slight Chance Showers And Thunderstorms | 5 mph SSW | 15% |
| Saturday Night | 60°F | Partly Cloudy | 10 to 15 mph SSW | 1% |
| Sunday | 98°F | Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph SSW | 15% |
| Sunday Night | 60°F | Mostly Clear | 15 mph SW | 3% |
| Monday | 97°F | Sunny then Slight Chance Showers And Thunderstorms | 10 mph SSE | 15% |
| Monday Night | 59°F | Partly Cloudy | 10 mph SW | 9% |
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 Aug 4, 2026.