Morrison, CO Weather & Growing Conditions
Overnight
33°F
Partly Cloudy
Partly cloudy, with a low around 33. West southwest wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 33°F | Partly Cloudy | 3 mph WSW | 0% |
| Wednesday | 48°F | Partly Sunny then Chance Rain Showers | 2 to 6 mph NNW | 50% |
| Wednesday Night | 33°F | Chance Rain And Snow Showers then Mostly Cloudy | 5 mph NW | 50% |
| Thursday | 50°F | Sunny | 0 to 5 mph S | 0% |
| Thursday Night | 35°F | Partly Cloudy | 3 mph SW | 1% |
| Friday | 49°F | Mostly Sunny then Slight Chance Rain Showers | 1 to 5 mph N | 17% |
| Friday Night | 33°F | Slight Chance Rain Showers then Mostly Clear | 5 mph WNW | 17% |
| Saturday | 51°F | Sunny | 1 to 7 mph SE | 2% |
| Saturday Night | 34°F | Mostly Clear | 5 mph WNW | 0% |
| Sunday | 60°F | Sunny | 1 to 7 mph SSE | 0% |
| Sunday Night | 38°F | Mostly Clear | 3 to 8 mph WSW | 0% |
| Monday | 59°F | Sunny | 1 to 7 mph N | 0% |
| Monday Night | 39°F | Partly Cloudy | 3 mph W | 0% |
| Tuesday | 57°F | Mostly Sunny | 3 mph NE | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Morrison, CO
Last spring frost
May 23
First fall frost
Sep 22
Growing season
118 days
Hardiness zone
5b
Explore more for Morrison, CO: full frost dates · planting calendar · Colorado frost dates
Climate data from the nearest NOAA station, Evergreen, Co (6.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.