Morrison, CO Weather & Growing Conditions
Today
72°F
Patchy Smoke
Patchy smoke before noon, then patchy smoke and a chance of showers and thunderstorms. Partly sunny, with a high near 72. East northeast wind around 7 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 72°F | Patchy Smoke | 7 mph ENE | 32% |
| Tonight | 54°F | Patchy Smoke | 2 to 7 mph NNW | 13% |
| Wednesday | 80°F | Patchy Smoke then Sunny | 3 to 8 mph NE | 0% |
| Wednesday Night | 57°F | Mostly Clear | 3 to 8 mph NNE | 2% |
| Thursday | 88°F | Sunny | 3 to 8 mph N | 1% |
| Thursday Night | 60°F | Mostly Clear | 8 mph SW | 2% |
| Friday | 89°F | Sunny | 6 to 10 mph N | 1% |
| Friday Night | 64°F | Mostly Clear | 6 to 10 mph S | 1% |
| Saturday | 91°F | Sunny | 7 to 10 mph NE | 2% |
| Saturday Night | 65°F | Partly Cloudy | 9 mph S | 1% |
| Sunday | 90°F | Sunny | 8 mph NE | 13% |
| Sunday Night | 66°F | Partly Cloudy | 8 mph WNW | 2% |
| Monday | 89°F | Mostly Sunny then Chance Showers And Thunderstorms | 9 mph NNW | 25% |
| Monday Night | 64°F | Mostly Cloudy | 8 mph WNW | 14% |
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 Aug 4, 2026.