Merino, CO Weather & Growing Conditions
Today
58°F
Mostly Sunny
Mostly sunny. High near 58, with temperatures falling to around 51 in the afternoon. Northwest wind around 7 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 58°F | Mostly Sunny | 7 mph NW | 1% |
| Tonight | 34°F | Mostly Cloudy | 7 mph NNW | 1% |
| Thursday | 59°F | Mostly Sunny | 2 to 7 mph N | 0% |
| Thursday Night | 32°F | Partly Cloudy | 3 mph SSW | 0% |
| Friday | 59°F | Mostly Sunny | 2 to 6 mph N | 2% |
| Friday Night | 32°F | Mostly Clear | 6 mph NW | 2% |
| Saturday | 61°F | Sunny | 2 to 8 mph NNW | 0% |
| Saturday Night | 32°F | Mostly Clear | 2 to 7 mph W | 0% |
| Sunday | 64°F | Sunny | 3 to 8 mph SW | 0% |
| Sunday Night | 37°F | Mostly Clear | 3 to 7 mph SW | 0% |
| Monday | 65°F | Sunny | 6 mph NW | 0% |
| Monday Night | 36°F | Partly Cloudy | 5 mph SW | 0% |
| Tuesday | 65°F | Mostly Sunny | 6 mph S | 0% |
| Tuesday Night | 38°F | Partly Cloudy | 3 to 7 mph SW | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Merino, CO
Last spring frost
Apr 30
First fall frost
Oct 9
Growing season
161 days
Hardiness zone
5b
Explore more for Merino, CO: full frost dates · planting calendar · Colorado frost dates
Climate data from the nearest NOAA station, Sterling, Co (14.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.