Lamar, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lamar, a city in Prowers County, Colorado.
This Afternoon
57°F
Sunny
Sunny, with a high near 57. North northwest wind 10 to 20 mph.
7-day forecast for Lamar
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 57°F | Sunny | 10 to 20 mph NNW | 0% |
| Tonight | 34°F | Mostly Clear | 5 mph W | 0% |
| Wednesday | 61°F | Mostly Sunny | 5 to 10 mph S | 9% |
| Wednesday Night | 37°F | Rain Showers Likely | 10 to 15 mph NNE | 65% |
| Thursday | 59°F | Mostly Sunny | 5 to 15 mph NNW | 4% |
| Thursday Night | 30°F | Mostly Clear | 0 to 5 mph WSW | 0% |
| Friday | 62°F | Mostly Sunny | 5 to 10 mph S | 3% |
| Friday Night | 32°F | Partly Cloudy | 5 mph SW | 3% |
| Saturday | 62°F | Sunny | 5 mph W | 3% |
| Saturday Night | 31°F | Mostly Clear | 5 mph SSW | 2% |
| Sunday | 67°F | Sunny | 5 mph SW | 0% |
| Sunday Night | 35°F | Mostly Clear | 5 to 10 mph SW | 0% |
| Monday | 68°F | Sunny | 5 to 10 mph NNW | 0% |
| Monday Night | 36°F | Partly Cloudy | 5 mph NW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Lamar (38.076, -102.615). Updated through the day.
Growing snapshot for Lamar
Last spring frost
May 2
First fall frost
Oct 7
Growing season
157 days
Hardiness zone
6a
More local growing data for Lamar: nearby ZIP 81052 weather · frost dates · planting calendar · Colorado frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Lamar Muni Ap, Co (7.1 mi from Lamar). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.