Climate Grass Range - Montana

	JanJa	FebFe	MarMa	AprAp	MayMa	JunJu
Average high in ºF Av. high Hi	38	40	47	57	66	74
Average low in ºF Av. low Lo	14	16	23	31	40	47
Av. precipitation in inch Av. precip. Pre.	0.61	0.39	1.00	1.56	3.13	2.95
Av. snowfall in inch Snowfall Sn	8	6	10	5	1	0

	JulJu	AugAu	SepSe	OctOc	NovNo	DecDe
Average high in ºF Av. high Hi	83	83	71	59	46	37
Average low in ºF Av. low Lo	53	51	42	33	22	14
Av. precipitation in inch Av. precip. Pre.	1.85	1.54	1.19	1.05	0.63	0.66
Av. snowfall in inch Snowfall Sn	0	0	0	3	5	9

Grass Range Climate Graph - Montana Climate Chart

Day	High ºF	Low ºF	Prec/mo inch	Prec/yr inch	Snow/mo inch	Snow/yr inch
1 Jan	36.9	13.2	0.04	0.04	0.31	0.80
2 Jan	37.0	13.2	0.04	0.04	0.59	1.50
3 Jan	37.1	13.3	0.08	0.08	0.91	2.30
4 Jan	37.2	13.3	0.08	0.08	1.18	3.00
5 Jan	37.2	13.4	0.12	0.12	1.50	3.80
6 Jan	37.3	13.4	0.16	0.16	1.69	4.30
7 Jan	37.4	13.5	0.16	0.16	2.01	5.10
8 Jan	37.5	13.6	0.20	0.20	2.40	6.10
9 Jan	37.5	13.6	0.20	0.20	2.72	6.90
10 Jan	37.6	13.7	0.24	0.24	2.99	7.60
11 Jan	37.6	13.7	0.24	0.24	3.31	8.40
12 Jan	37.7	13.8	0.28	0.28	3.58	9.10

Day	High ºF	Low ºF	Precip. inch	Snow inch	Snow d. inch
01 Jun	57.0	41.0	0.00	0.00	0.0
02 Jun	59.0	39.9	0.03	0.00	0.0
03 Jun	66.9	44.1	0.00	0.00	0.0
04 Jun	71.1	46.9	0.18	0.00	0.0
05 Jun	81.0	50.0	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.	67.0 ºF	38 ºF
Average low temperature Av. low temp.	44.4 ºF	14 ºF
Total precipitation Total precip.	0.21 inch	0.61 inch
Total snowfall Total snowfall	0.00 inch	8 inch

Highest max temperature Highest max temp.	81.0 ºF	-
Lowest max temperature Lowest max temp.	57.0 ºF	-
Highest min temperature Highest min temp.	50.0 ºF	-
Lowest min temperature Lowest min temp.	39.9 ºF	-

Past weather June 2026 incomplete - Missing data

USGS National Map — Open interactive map

Station Data

Monthly averages Grass Range
Longitude: -108.8, Latitude: 47.03
Average weather Grass Range, MT - 59032

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, ...