Climate Chinook - Montana

	JanJa	FebFe	MarMa	AprAp	MayMa	JunJu
Average high in ºF Av. high Hi	29	34	45	59	68	77
Average low in ºF Av. low Lo	4	8	19	31	41	50
Av. precipitation in inch Av. precip. Pre.	0.49	0.40	0.61	0.91	2.25	2.35
Av. snowfall in inch Snowfall Sn	6	6	4	1	1	0

	JulJu	AugAu	SepSe	OctOc	NovNo	DecDe
Average high in ºF Av. high Hi	85	84	72	59	42	30
Average low in ºF Av. low Lo	54	52	40	28	16	6
Av. precipitation in inch Av. precip. Pre.	1.74	1.22	1.41	0.71	0.55	0.48
Av. snowfall in inch Snowfall Sn	0	0	0	1	6	6

Chinook Climate Graph - Montana Climate Chart

Day	High ºF	Low ºF	Prec/mo inch	Prec/yr inch	Snow/mo inch	Snow/yr inch
1 Jan	28.1	3.2	0.04	0.04	0.31	0.80
2 Jan	28.1	3.1	0.04	0.04	0.51	1.30
3 Jan	28.1	3.1	0.08	0.08	0.79	2.00
4 Jan	28.1	3.1	0.08	0.08	0.98	2.50
5 Jan	28.1	3.0	0.12	0.12	1.30	3.30
6 Jan	28.1	3.0	0.12	0.12	1.50	3.80
7 Jan	28.1	3.0	0.16	0.16	1.81	4.60
8 Jan	28.2	3.1	0.16	0.16	2.01	5.10
9 Jan	28.2	3.1	0.20	0.20	2.28	5.80
10 Jan	28.3	3.1	0.20	0.20	2.60	6.60
11 Jan	28.3	3.2	0.24	0.24	2.80	7.10
12 Jan	28.4	3.2	0.24	0.24	3.11	7.90

Day	High ºF	Low ºF	Precip. inch	Snow inch	Snow d. inch
01 Jun	57.9	43.0	0.80	0.00	0.0
02 Jun	54.0	43.0	0.17	0.00	0.0
03 Jun	55.0	48.0	0.05	0.00	0.0
04 Jun	68.0	48.0	0.00	0.00	0.0
05 Jun	77.0	48.0	0.00	0.00	0.0
06 Jun	-	-	-	-	-
07 Jun	-	-	-	-	-
08 Jun	-	-	-	-	-
09 Jun	-	-	-	-	-
10 Jun	-	-	-	-	-
11 Jun	-	-	-	-	-
12 Jun	-	-	-	-	-
13 Jun	-	-	-	-	-
14 Jun	-	-	-	-	-
15 Jun	-	-	-	-	-
16 Jun	-	-	-	-	-
17 Jun	-	-	-	-	-
18 Jun	-	-	-	-	-
19 Jun	-	-	-	-	-
20 Jun	-	-	-	-	-
21 Jun	-	-	-	-	-
22 Jun	-	-	-	-	-
23 Jun	-	-	-	-	-
24 Jun	-	-	-	-	-
25 Jun	-	-	-	-	-
26 Jun	-	-	-	-	-
27 Jun	-	-	-	-	-
28 Jun	-	-	-	-	-
29 Jun	-	-	-	-	-
30 Jun	-	-	-	-	-

	Jun 26	Normal
Average high temperature Av. high temp.	62.4 ºF	29 ºF
Average low temperature Av. low temp.	46.0 ºF	4 ºF
Total precipitation Total precip.	1.02 inch	0.49 inch
Total snowfall Total snowfall	0.00 inch	6 inch

Highest max temperature Highest max temp.	77.0 ºF	-
Lowest max temperature Lowest max temp.	54.0 ºF	-
Highest min temperature Highest min temp.	48.0 ºF	-
Lowest min temperature Lowest min temp.	43.0 ºF	-

Past weather June 2026 incomplete - Missing data

USGS National Map — Open interactive map

Station Data

Monthly averages Chinook
Longitude: -109.251, Latitude: 48.5921
Average weather Chinook, MT - 59523

Monthly: 1991-2020 normals
History: 2007-2026

Abbreviations

Average precipitation in : Av. precipitation in
Jan: January, Feb: February, ...Jan: January, Feb: February, ...Ja: January, Fe: February, ...