Johnstown, CO 15 December Weather

Altitude - 1483m | 40°20′13″N,104°54′43″W | map (OSM)

Johnstown, CO

°F

9:30 amSunny10mphSE

Wed, December 10, 202510:24 AM (GMT -07:00)

Monday Dec 15 2025	12 am	3 am	6 am	9 am	12 pm	3 pm	6 pm	9 pm

temperature °F	34°	32°	32°	42°	56°	56°	45°	38°
wind	5mph	4mph	4mph	4mph	5mph	5mph	4mph	4mph
pressure in	25.01	25.00	25.01	25.12	25.18	25.12	25.04	24.99

Sunday Dec 15 2024	12 am	3 am	6 am	9 am	12 pm	3 pm	6 pm	9 pm

temperature °F	32°	30°	35°	41°	54°	51°	41°	33°
wind	3mph	5mph	7mph	9mph	20mph	17mph	9mph	10mph
pressure in	24.84	24.81	24.88	24.95	25.01	25.00	25.00	25.05

Friday Dec 15 2023	12 am	3 am	6 am	9 am	12 pm	3 pm	6 pm	9 pm

temperature °F	26°	24°	24°	30°	45°	48°	37°	30°
wind	2mph	2mph	2mph	3mph	6mph	7mph	5mph	4mph
pressure in	25.12	25.11	25.15	25.23	25.27	25.27	25.23	25.23

* Johnstown, CO weather for December 15 is prepared on the basis of GFS data and is intended for personal use in the "as is" (as is) format. You can see on this page Johnstown, CO Weather for December 15, as well as compare air temperature with the climate norm for this date. Perhaps you will be interested - for comparison, the actual weather on December 15 for previous years is presented.