Grand Junction, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Grand Junction, a city in Mesa County, Colorado.
This Afternoon
53°F
Sunny
Sunny, with a high near 53. Southwest wind around 0 mph.
7-day forecast for Grand Junction
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 53°F | Sunny | 0 mph | 0% |
| Tonight | 37°F | Partly Cloudy | 0 to 5 mph E | 1% |
| Wednesday | 52°F | Rain Showers Likely | 0 to 10 mph NNE | 65% |
| Wednesday Night | 37°F | Slight Chance Rain Showers then Mostly Cloudy | 0 to 5 mph ENE | 18% |
| Thursday | 54°F | Mostly Sunny | 0 to 5 mph NNE | 0% |
| Thursday Night | 37°F | Mostly Cloudy | 0 mph | 2% |
| Friday | 56°F | Mostly Sunny | 0 mph | 2% |
| Friday Night | 36°F | Mostly Clear | 0 to 5 mph NE | 0% |
| Saturday | 58°F | Sunny | 0 to 5 mph E | 0% |
| Saturday Night | 37°F | Clear | 0 to 5 mph E | 0% |
| Sunday | 59°F | Sunny | 0 to 5 mph NNE | 0% |
| Sunday Night | 39°F | Mostly Clear | 0 to 5 mph NE | 0% |
| Monday | 60°F | Mostly Sunny | 0 to 5 mph NNE | 2% |
| Monday Night | 40°F | Mostly Cloudy | 0 mph | 2% |
Forecast source: National Weather Service (api.weather.gov) for Grand Junction (39.089, -108.567). Updated through the day.
Growing snapshot for Grand Junction
Last spring frost
Apr 14
First fall frost
Oct 23
Growing season
190 days
Hardiness zone
7a
More local growing data for Grand Junction: nearby ZIP 81501 weather · frost dates · planting calendar · Colorado frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Grand Junction Wfo, Co (3.5 mi from Grand Junction). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.