As of 10:16 MDT

Jefferson City, MT weather in May

33°

Jefferson City, Thursday, 29 October, 10:16

Partly cloudy. Feels like 29°. High 50°, low 29°.

Pressure30.12 inHg

Wind3.7 mph S

Humidity85%

Visibility6.2 mi

Dew point29°

See detailed hourly forecast

In May, Jefferson City, MT averages a high of 59.5° and a low of 37.3°. About 3.3 inches of precipitation fall over the month (14 wet days). The record high is 86° (2003) and the record low 10.2° (2019). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	53.6°	30.9°	27%	75.4° (1981)	10.2° (2019)
2	55.4°	32.9°	30%	77.9° (1985)	18.5° (1967)
3	56.3°	33.6°	37%	74.7° (1966)	22.6° (2024)
4	56.3°	33.4°	37%	76.5° (1966)	18.7° (1967)
5	57.2°	35.2°	37%	77.5° (1966)	23.2° (1982)
6	56.5°	35.2°	40%	78.1° (1992)	25° (2010)
7	55.6°	35.8°	47%	79° (1987)	24.4° (2010)
8	55.8°	35.6°	45%	79.5° (1987)	21° (2002)
9	55.8°	34.7°	53%	75.4° (2025)	18.9° (2002)
10	55.2°	34.7°	47%	78.6° (2025)	23.7° (1999)
11	56.1°	34.2°	45%	78.6° (1960)	16.2° (2016)
12	57.9°	35.4°	30%	80.8° (2001)	25.9° (2004)
13	59.2°	36.1°	37%	79.7° (2013)	23.5° (1970)
14	60.1°	36.5°	35%	77.5° (1984)	19.2° (1995)
15	61.7°	37.8°	42%	80.1° (2012)	25° (1966)
16	60.8°	37.9°	48%	79.7° (2006)	23.5° (1974)
17	61°	38.3°	48%	79.7° (2006)	25.9° (1974)
18	60.1°	38.7°	48%	81° (2006)	24.6° (1977)
19	60.6°	38.1°	43%	79.9° (1992)	21.2° (2017)
20	60.8°	38.1°	65%	79.2° (2002)	26.1° (1975)
21	60.6°	37.9°	53%	79.9° (1980)	22.1° (2022)
22	61°	38.7°	53%	78.8° (1980)	24.3° (2021)
23	61.2°	39°	58%	78.4° (1988)	27.3° (2002)
24	61.3°	40.1°	53%	82° (2001)	23.2° (2024)
25	63°	39.2°	48%	79.9° (2003)	23.5° (2024)
26	63.5°	41°	57%	79.5° (1966)	25° (1975)
27	63.9°	41.7°	57%	82.2° (1986)	29.5° (1973)
28	64.2°	41.5°	57%	86° (2003)	30.2° (1977)
29	63.5°	41.9°	50%	83.1° (1986)	29.3° (1977)
30	63.1°	40.8°	45%	83.8° (1986)	28.2° (1982)
31	64.6°	41.2°	52%	84.7° (2025)	23.7° (1982)