Jefferson Island, MT 18 December Weather

Altitude - 1291m | 45°51′4″N,111°56′28″W | map (OSM)

Jefferson Island, MT

°F

11 pmClear13mphS

Sat, December 13, 202511:46 PM (GMT -07:00)

Climatic norm in Jefferson Island, MT Dec 18

4°
17°
29°

minimum
average
maximum

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

temperature °F	23°	20°	19°	20°	26°	29°	28°	32°
wind	12mph	9mph	7mph	6mph	8mph	10mph	8mph	9mph
pressure in	25.52	25.53	25.53	25.53	25.48	25.38	25.29	25.24

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

temperature °F	28°	26°	30°	33°	37°	43°	38°	32°
wind	12mph	14mph	16mph	18mph	21mph	27mph	27mph	16mph
pressure in	25.73	25.69	25.68	25.63	25.58	25.57	25.65	25.74

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

temperature °F	23°	23°	21°	21°	34°	39°	36°	32°
wind	8mph	7mph	7mph	6mph	6mph	6mph	8mph	10mph
pressure in	25.65	25.63	25.56	25.51	25.51	25.46	25.43	25.40

* Jefferson Island, 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 Jefferson Island, 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.