Grand Junction, CO Weather & Growing Conditions
Tonight
53°F
Slight Chance Showers And Thunderstorms then Mostly Clear
A slight chance of showers and thunderstorms before midnight. Mostly clear, with a low around 53. East northeast wind 0 to 5 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 53°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 0 to 5 mph ENE | 19% |
| Sunday | 77°F | Sunny | 0 to 5 mph NW | 0% |
| Sunday Night | 51°F | Mostly Clear | 0 to 5 mph NE | 0% |
| Monday | 79°F | Sunny | 0 to 10 mph ENE | 0% |
| Monday Night | 55°F | Partly Cloudy | 0 to 10 mph E | 3% |
| Tuesday | 79°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 to 10 mph S | 29% |
| Tuesday Night | 54°F | Showers And Thunderstorms Likely | 5 to 10 mph SSE | 73% |
| Wednesday | 76°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph SSW | 23% |
| Wednesday Night | 54°F | Mostly Clear | 0 to 5 mph E | 8% |
| Thursday | 78°F | Mostly Sunny | 0 to 5 mph SE | 7% |
| Thursday Night | 56°F | Partly Cloudy then Slight Chance Rain Showers | 0 to 5 mph E | 23% |
| Friday | 76°F | Chance Rain Showers | 0 to 5 mph SE | 37% |
| Friday Night | 56°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 32% |
| Saturday | 77°F | Chance Rain Showers | 0 to 5 mph S | 34% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Grand Junction, CO
Last spring frost
Apr 28
First fall frost
Oct 16
Growing season
171 days
Hardiness zone
7a
Explore more for Grand Junction, CO: full frost dates · planting calendar · Colorado frost dates
Climate data from the nearest NOAA station, Grand Junction Walker Fld, Co (1.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.