October weather in Grand Junction, CO
The average temperature in Grand Junction in October is 54.5°F (41.8°F–67.1°F). Average precipitation: 1.27 inches.
October is a fall month in Grand Junction, and is cooler than the annual average of 54.6°F. Daily temperatures swing about 25.3°F between overnight low and afternoon high. Daylight averages about 10h 57m. For travel, October is a comfortable month to visit.
Avg High
67.1°F
Avg Low
41.8°F
Precipitation
1.27 in
Daylight
10h 57m
October records in Grand Junction
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| October 1 | 90.0°F (2015) | 43.0°F (2019) | 0.48 in (2014) |
| October 2 | 87.1°F (2024) | 36.0°F (2017) | 0.58 in (2022) |
| October 3 | 87.1°F (2025) | 33.1°F (2013) | 0.41 in (2013) |
| October 4 | 86.0°F (2024) | 32.0°F (2013) | 0.11 in (2013) |
| October 5 | 84.9°F (2024) | 35.1°F (2013) | 0.46 in (2015) |
| October 6 | 82.0°F (2020) | 35.1°F (2013) | 1.06 in (2018) |
| October 7 | 82.0°F (2020) | 37.0°F (2016) | 0.47 in (2018) |
| October 8 | 82.9°F (2024) | 36.0°F (2012) | 0.31 in (2018) |
| October 9 | 84.0°F (2024) | 37.0°F (2017) | 0.07 in (2014) |
| October 10 | 84.0°F (2024) | 32.0°F (2017) | 1.38 in (2025) |
| October 11 | 82.9°F (2024) | 26.1°F (2019) | 0.84 in (2025) |
| October 12 | 81.0°F (2024) | 26.1°F (2019) | 0.17 in (2021) |
| October 13 | 81.0°F (2015) | 30.0°F (2019) | 0.18 in (2025) |
| October 14 | 82.0°F (2015) | 32.0°F (2018) | 0.28 in (2021) |
| October 15 | 82.9°F (2015) | 28.0°F (2018) | 0.00 in (2012) |
| October 16 | 81.0°F (2016) | 30.9°F (2018) | 0.00 in (2012) |
| October 17 | 75.9°F (2023) | 33.1°F (2013) | 0.06 in (2024) |
| October 18 | 79.0°F (2020) | 35.1°F (2012) | 0.11 in (2024) |
| October 19 | 80.1°F (2023) | 33.1°F (2013) | 0.19 in (2015) |
| October 20 | 79.0°F (2023) | 33.1°F (2019) | 0.24 in (2015) |
| October 21 | 79.0°F (2023) | 33.1°F (2019) | 0.03 in (2014) |
| October 22 | 78.1°F (2020) | 30.9°F (2019) | 1.11 in (2015) |
| October 23 | 78.1°F (2023) | 33.1°F (2022) | 0.62 in (2022) |
| October 24 | 75.0°F (2014) | 28.9°F (2022) | 0.09 in (2012) |
| October 25 | 77.0°F (2014) | 21.0°F (2020) | 0.70 in (2020) |
| October 26 | 73.0°F (2014) | 16.0°F (2020) | 0.61 in (2021) |
| October 27 | 70.0°F (2016) | 12.9°F (2020) | 0.20 in (2022) |
| October 28 | 70.0°F (2018) | 21.9°F (2020) | 0.18 in (2023) |
| October 29 | 73.0°F (2016) | 17.1°F (2019) | 0.51 in (2013) |
| October 30 | 73.9°F (2016) | 12.0°F (2019) | 0.24 in (2015) |
| October 31 | 72.0°F (2016) | 12.0°F (2019) | 0.00 in (2012) |