Roundup, MT 18 December Weather

Altitude - 988m | 46°26′42″N,108°32′31″W | map (OSM)

Roundup, MT

°F

9:30 amPartly Cloudy17mphSW

Sun, December 14, 202510:31 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	26°	22°	18°	20°	27°	30°	28°	28°
wind	13mph	8mph	6mph	7mph	8mph	9mph	9mph	10mph
pressure in	26.53	26.58	26.58	26.57	26.51	26.40	26.30	26.19

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

temperature °F	23°	22°	26°	31°	38°	44°	44°	42°
wind	3mph	8mph	10mph	14mph	16mph	21mph	25mph	24mph
pressure in	26.85	26.78	26.72	26.62	26.50	26.43	26.44	26.57

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

temperature °F	24°	27°	28°	33°	47°	51°	43°	41°
wind	8mph	13mph	15mph	14mph	16mph	13mph	12mph	12mph
pressure in	26.66	26.62	26.56	26.53	26.51	26.44	26.37	26.35

* Roundup, 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 Roundup, 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.