Grannis, MT 15 December Weather

Altitude - 1368m | 45°45′25″N,110°29′46″W | map (OSM)

Grannis, MT

°F

10:30 pmClear20mphS

Sat, December 13, 202511:04 PM (GMT -07:00)

Monday Dec 15 2025	12 am	3 am	6 am	9 am	12 pm	3 pm	6 pm	9 pm

temperature °F	39°	39°	39°	39°	46°	48°	46°	45°
wind	17mph	17mph	17mph	21mph	23mph	24mph	28mph	30mph
pressure in	25.45	25.46	25.45	25.42	25.40	25.37	25.35	25.32

Sunday Dec 15 2024	12 am	3 am	6 am	9 am	12 pm	3 pm	6 pm	9 pm

temperature °F	39°	36°	35°	35°	33°	32°	30°	29°
wind	8mph	10mph	10mph	15mph	18mph	16mph	17mph	16mph
pressure in	25.18	25.16	25.17	25.28	25.34	25.38	25.43	25.48

Friday Dec 15 2023	12 am	3 am	6 am	9 am	12 pm	3 pm	6 pm	9 pm

temperature °F	30°	31°	31°	33°	41°	43°	37°	35°
wind	12mph	12mph	13mph	12mph	11mph	13mph	12mph	12mph
pressure in	25.60	25.64	25.69	25.72	25.72	25.67	25.64	25.62

* Grannis, MT weather for December 15 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 Grannis, MT Weather for December 15, 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 15 for previous years is presented.