Amherst, CO Weather & Growing Conditions
Tonight
59°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before midnight, then a chance of showers and thunderstorms between midnight and 2am, then a slight chance of showers and thunderstorms between 2am and 3am. Mostly cloudy. Low around 59, with temperatures rising to around 61 overnight. North northwest wind 5 to 8 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 59°F | Chance Showers And Thunderstorms | 5 to 8 mph NNW | 48% |
| Saturday | 74°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 5 to 8 mph ENE | 37% |
| Saturday Night | 55°F | Showers And Thunderstorms | 6 to 9 mph ENE | 85% |
| Sunday | 67°F | Showers And Thunderstorms | 6 mph ENE | 81% |
| Sunday Night | 51°F | Showers And Thunderstorms Likely | 5 mph ENE | 58% |
| Monday | 68°F | Mostly Sunny | 7 mph N | 11% |
| Monday Night | 50°F | Mostly Clear then Slight Chance Rain Showers | 8 to 13 mph ESE | 18% |
| Tuesday | 67°F | Partly Sunny | 13 to 20 mph SE | 12% |
| Tuesday Night | 55°F | Chance Showers And Thunderstorms | 18 mph SE | 37% |
| Wednesday | 73°F | Partly Sunny then Slight Chance Showers And Thunderstorms | 18 mph SSE | 19% |
| Wednesday Night | 56°F | Chance Showers And Thunderstorms then Mostly Cloudy | 8 to 15 mph SSE | 30% |
| Thursday | 74°F | Partly Sunny | 9 mph SE | 10% |
| Thursday Night | 56°F | Slight Chance Rain Showers | 8 mph ESE | 18% |
| Friday | 74°F | Partly Sunny then Slight Chance Rain Showers | 8 to 14 mph SE | 17% |
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 Sep 19, 2026.