Summit, MT 21 December Weather

Altitude - 2272m | 45°13′8″N,111°55′52″W | map (OSM)

Summit, MT

°F

10:30 pmFair15mphS

Sat, December 13, 202511:07 PM (GMT -07:00)

Sunday Dec 21 2025	12 am	3 am	6 am	9 am	12 pm	3 pm	6 pm	9 pm

temperature °F	27°	25°	25°	27°	33°	34°	30°	29°
wind	11mph	10mph	9mph	10mph	12mph	13mph	11mph	10mph
pressure in	22.49	22.47	22.48	22.50	22.54	22.53	22.49	22.49

Saturday Dec 21 2024	12 am	3 am	6 am	9 am	12 pm	3 pm	6 pm	9 pm

temperature °F	36°	33°	34°	37°	43°	45°	40°	37°
wind	13mph	9mph	10mph	11mph	10mph	13mph	12mph	12mph
pressure in	22.78	22.73	22.73	22.74	22.75	22.73	22.67	22.65

Thursday Dec 21 2023	12 am	3 am	6 am	9 am	12 pm	3 pm	6 pm	9 pm

temperature °F	34°	31°	30°	31°	40°	44°	36°	33°
wind	9mph	7mph	7mph	7mph	8mph	11mph	9mph	9mph
pressure in	22.72	22.70	22.72	22.76	22.82	22.83	22.78	22.76

* Summit, MT weather for December 21 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 Summit, MT Weather for December 21, 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 21 for previous years is presented.