Mammoth, MT 20 December Weather

Altitude - 2180m | 45°40′12″N,112°1′1″W | map (OSM)

Mammoth, MT

°F

1 pmSunny15mphSW

Sun, December 14, 20251:33 PM (GMT -07:00)

Saturday Dec 20 2025	12 am	3 am	6 am	9 am	12 pm	3 pm	6 pm	9 pm

temperature °F	35°	33°	31°	30°	33°	33°	28°	25°
wind	11mph	11mph	10mph	10mph	11mph	12mph	10mph	11mph
pressure in	22.65	22.66	22.71	22.75	22.77	22.79	22.78	22.79

Friday Dec 20 2024	12 am	3 am	6 am	9 am	12 pm	3 pm	6 pm	9 pm

temperature °F	35°	35°	37°	38°	45°	47°	42°	40°
wind	10mph	12mph	13mph	12mph	11mph	10mph	10mph	9mph
pressure in	23.02	23.00	23.02	23.03	23.11	23.12	23.08	23.06

Wednesday Dec 20 2023	12 am	3 am	6 am	9 am	12 pm	3 pm	6 pm	9 pm

temperature °F	38°	36°	34°	34°	42°	44°	39°	36°
wind	8mph	6mph	7mph	7mph	6mph	6mph	7mph	8mph
pressure in	22.87	22.86	22.86	22.88	22.94	22.94	22.93	22.94

* Mammoth, MT weather for December 20 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 Mammoth, MT Weather for December 20, 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 20 for previous years is presented.