Merino, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Merino, a town in Logan County, Colorado.
This Afternoon
78°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 4pm, then showers and thunderstorms likely. Partly sunny. High near 78, with temperatures falling to around 73 in the afternoon. Northeast wind around 8 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Merino
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 78°F | Chance Showers And Thunderstorms | 8 mph NE | 65% |
| Tonight | 52°F | Showers And Thunderstorms | 2 to 7 mph W | 92% |
| Sunday | 69°F | Showers And Thunderstorms Likely | 2 to 6 mph NNE | 65% |
| Sunday Night | 50°F | Chance Showers And Thunderstorms then Mostly Clear | 1 to 6 mph NNW | 33% |
| Monday | 72°F | Sunny | 1 to 7 mph NNE | 2% |
| Monday Night | 49°F | Partly Cloudy | 8 to 12 mph ESE | 9% |
| Tuesday | 76°F | Mostly Sunny | 12 to 18 mph SSE | 5% |
| Tuesday Night | 53°F | Partly Cloudy | 14 to 18 mph SE | 14% |
| Wednesday | 81°F | Partly Sunny | 6 to 14 mph SSE | 5% |
| Wednesday Night | 54°F | Mostly Cloudy | 2 to 7 mph SSW | 9% |
| Thursday | 83°F | Mostly Sunny | 2 to 6 mph NNW | 2% |
| Thursday Night | 55°F | Partly Cloudy | 6 mph ESE | 7% |
| Friday | 82°F | Mostly Sunny | 3 to 10 mph SE | 13% |
| Friday Night | 56°F | Slight Chance Showers And Thunderstorms | 6 to 10 mph SSE | 22% |
Forecast source: National Weather Service (api.weather.gov) for Merino (40.484, -103.354). Updated through the day.
Growing snapshot for Merino
Last spring frost
Apr 30
First fall frost
Oct 9
Growing season
161 days
Hardiness zone
5b
More local growing data for Merino: nearby ZIP 80741 weather · frost dates · planting calendar · Colorado frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Sterling, Co (14.7 mi from Merino). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.