Sterling, CO Weather & Growing Conditions
Tonight
28°F
Mostly Clear
Mostly clear, with a low around 28. Northwest wind around 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 28°F | Mostly Clear | 6 mph NW | 1% |
| Wednesday | 58°F | Mostly Sunny | 6 mph NW | 1% |
| Wednesday Night | 31°F | Mostly Cloudy | 5 mph NNW | 0% |
| Thursday | 58°F | Mostly Sunny | 1 to 5 mph NNW | 0% |
| Thursday Night | 29°F | Partly Cloudy | 2 mph SSW | 0% |
| Friday | 60°F | Mostly Sunny | 5 mph NW | 1% |
| Friday Night | 30°F | Mostly Clear | 1 to 5 mph WNW | 1% |
| Saturday | 61°F | Sunny | 2 to 8 mph WNW | 1% |
| Saturday Night | 30°F | Clear | 5 mph W | 1% |
| Sunday | 66°F | Sunny | 3 to 7 mph SW | 0% |
| Sunday Night | 35°F | Mostly Clear | 6 mph WSW | 0% |
| Monday | 65°F | Sunny | 6 mph N | 0% |
| Monday Night | 35°F | Partly Cloudy | 5 mph SSE | 0% |
| Tuesday | 65°F | Mostly Sunny | 7 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Sterling, CO
Last spring frost
Apr 30
First fall frost
Oct 9
Growing season
161 days
Hardiness zone
5b
Explore more for Sterling, CO: full frost dates · planting calendar · Colorado frost dates
Climate data from the nearest NOAA station, Sterling, Co (2.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.