Calypso, MT 18 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)

Thursday Dec 18 2025	12 am	3 am	6 am	9 am	12 pm	3 pm	6 pm	9 pm

temperature °F	21°	15°	10°	10°	15°	17°	15°	18°
wind	29mph	23mph	15mph	8mph	5mph	6mph	7mph	9mph
pressure in	27.35	27.50	27.63	27.68	27.66	27.56	27.48	27.36

Wednesday Dec 18 2024	12 am	3 am	6 am	9 am	12 pm	3 pm	6 pm	9 pm

temperature °F	17°	14°	15°	20°	27°	33°	36°	39°
wind	5mph	7mph	10mph	10mph	8mph	6mph	13mph	27mph
pressure in	28.02	27.96	27.89	27.80	27.64	27.50	27.41	27.47

Monday Dec 18 2023	12 am	3 am	6 am	9 am	12 pm	3 pm	6 pm	9 pm

temperature °F	19°	22°	22°	25°	39°	42°	34°	31°
wind	5mph	6mph	6mph	6mph	8mph	6mph	4mph	4mph
pressure in	27.79	27.75	27.65	27.60	27.54	27.46	27.39	27.35

* Calypso, MT weather for December 18 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 18, 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 18 for previous years is presented.