Calypso, MT 21 December Weather

Altitude - 677m | 46°46′23″N,105°25′23″W | map (OSM)

Calypso, MT

°F

2 amClear8mphSE

Sun, December 14, 20252:30 AM (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	19°	19°	19°	21°	26°	27°	22°	20°
wind	6mph	7mph	7mph	7mph	7mph	7mph	6mph	7mph
pressure in	27.42	27.43	27.46	27.49	27.51	27.49	27.48	27.52

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

temperature °F	23°	21°	23°	29°	40°	45°	35°	32°
wind	6mph	5mph	6mph	6mph	8mph	6mph	5mph	4mph
pressure in	27.73	27.69	27.67	27.65	27.60	27.55	27.51	27.47

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

temperature °F	33°	31°	31°	34°	47°	50°	39°	34°
wind	5mph	7mph	7mph	6mph	8mph	8mph	6mph	6mph
pressure in	27.57	27.58	27.61	27.65	27.68	27.67	27.65	27.64

* Calypso, 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 Calypso, 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.