Amherst, CO Weather & Growing Conditions
Tonight
29°F
Clear
Clear, with a low around 29. Northwest wind around 9 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 29°F | Clear | 9 mph NW | 7% |
| Wednesday | 56°F | Sunny | 7 to 12 mph NW | 0% |
| Wednesday Night | 33°F | Mostly Cloudy | 7 to 10 mph NNW | 1% |
| Thursday | 56°F | Mostly Sunny | 2 to 10 mph NNW | 0% |
| Thursday Night | 29°F | Mostly Clear | 3 mph W | 0% |
| Friday | 58°F | Mostly Sunny | 6 mph SW | 1% |
| Friday Night | 31°F | Mostly Clear | 3 to 7 mph WSW | 1% |
| Saturday | 60°F | Sunny | 3 to 10 mph NW | 0% |
| Saturday Night | 32°F | Mostly Clear | 6 mph WNW | 0% |
| Sunday | 64°F | Sunny | 6 to 9 mph SW | 0% |
| Sunday Night | 38°F | Clear | 9 mph WSW | 0% |
| Monday | 64°F | Sunny | 3 to 9 mph NNW | 0% |
| Monday Night | 35°F | Partly Cloudy | 5 mph N | 0% |
| Tuesday | 61°F | Mostly Sunny | 5 to 8 mph SSW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Amherst, CO
Last spring frost
May 11
First fall frost
Oct 3
Growing season
144 days
Hardiness zone
5b
Explore more for Amherst, CO: full frost dates · planting calendar · Colorado frost dates
Climate data from the nearest NOAA station, Holyoke, Co (14 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.