Chelsea, MT 18 December Weather

Altitude - 591m | 48°7′59″N,105°20′17″W | map (OSM)

Chelsea, MT

°F

2 amClear10mphSE

Sun, December 14, 20252:35 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	11°	7°	5°	3°	6°	8°	5°	7°
wind	24mph	18mph	11mph	7mph	5mph	7mph	8mph	9mph
pressure in	27.62	27.80	27.95	28.00	27.96	27.89	27.79	27.65

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

temperature °F	8°	4°	6°	9°	14°	20°	28°	30°
wind	6mph	7mph	11mph	13mph	12mph	11mph	8mph	19mph
pressure in	28.38	28.31	28.26	28.15	27.97	27.77	27.66	27.68

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

temperature °F	12°	15°	16°	22°	37°	38°	29°	25°
wind	3mph	5mph	5mph	4mph	7mph	5mph	2mph	2mph
pressure in	28.06	28.02	27.92	27.86	27.81	27.74	27.66	27.63

* Chelsea, 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 Chelsea, 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.