As of 07:26 MDT

Eureka, MT weather in December

50°

Eureka, Wednesday, 7 October, 07:26

Partly cloudy. Feels like 48°. High 72°, low 47°.

Pressure30.03 inHg

Wind4 mph W

Humidity63%

Visibility6.2 mi

Dew point36°

See detailed hourly forecast

In December, Eureka, MT averages a high of 28.9° and a low of 17.9°. About 2.5 inches of precipitation fall over the month (13 wet days). The record high is 56.7° (2021) and the record low -36.2° (1983). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	32.2°	21.4°	47%	56.7° (2021)	-20° (1985)
2	32.4°	21.2°	53%	52.3° (2021)	-15.9° (1985)
3	32.4°	21.4°	45%	44.1° (2020)	-8.5° (1972)
4	31.6°	20.1°	40%	48.2° (1987)	-11° (1972)
5	30.2°	19.2°	38%	42.6° (1987)	-7.2° (1972)
6	29.7°	18.7°	35%	46.8° (2023)	-19.5° (2013)
7	28.6°	17.6°	43%	41.7° (1965)	-21.8° (2013)
8	28.8°	18.1°	42%	46.8° (2020)	-20.9° (1972)
9	29.8°	19.4°	45%	46° (2025)	-15.9° (1972)
10	30.6°	19.8°	42%	43.7° (2014)	-18.4° (1961)
11	31.3°	21.2°	50%	49.3° (2025)	-21.1° (1961)
12	31.3°	21.2°	43%	46.6° (2014)	-21.6° (2000)
13	30°	19°	40%	46.8° (2025)	-6.2° (2008)
14	30.4°	20.7°	42%	50.7° (2025)	-20.2° (2008)
15	30.9°	20.5°	42%	49.1° (2025)	-18° (2008)
16	29.8°	18.7°	45%	48° (2025)	-28.8° (1964)
17	30°	19.4°	42%	44.2° (2018)	-25.4° (1964)
18	29.1°	17.1°	43%	44.1° (2023)	-13.9° (1964)
19	27°	16.5°	32%	42.1° (1979)	-18.9° (1990)
20	27°	16.3°	38%	46.6° (2024)	-19.1° (1983)
21	27.7°	16.9°	40%	45.7° (2019)	-26.5° (1983)
22	27.7°	17.4°	37%	46.2° (2023)	-26.5° (2022)
23	27.1°	14.9°	42%	45.5° (2025)	-26° (1983)
24	27°	16.5°	38%	41.7° (2025)	-36.2° (1983)
25	27.3°	16.2°	32%	41.9° (2025)	-20.4° (1983)
26	28°	16.9°	37%	44.6° (2022)	-15° (1990)
27	27.9°	16°	50%	46.2° (1980)	-8.1° (1992)
28	25.9°	14.2°	43%	44.2° (2023)	-21.5° (1968)
29	24.4°	13.5°	40%	40.3° (2011)	-29.2° (1968)
30	24.3°	13.3°	40%	39° (1980)	-27.4° (1968)
31	25°	13.3°	35%	42.4° (2025)	-24.5° (1968)