What is the hottest month in Pinnacle, MT?

July is the warmest month, with a normal high of 82°F at Hungry Horse Dam.

What is the coldest month in Pinnacle, MT?

February is the coldest month, with a normal low of 20°F.

What is the wettest month in Pinnacle, MT?

November has the most precipitation on average, about 3.88 inches.

Checked Oct 25, 2026

Pinnacle, MT Climate

1991 to 2020 normals at Hungry Horse Dam, 17 mi from the center of Pinnacle, elevation 3160 ft.

Average weather by month

Select a month for daily normals and last year's weather

Month	High	Low	Precip.	Snow
January	31°	20°	3.62 in	--
February	34°	20°	2.53 in	--
March	43°	25°	3.21 in	--
April	53°	32°	2.65 in	--
May	64°	41°	2.87 in	--
June	71°	47°	3.82 in	--
July	82°	53°	1.42 in	--
August	81°	52°	1.23 in	--
September	69°	44°	2.21 in	--
October	52°	35°	3.52 in	--
November	38°	28°	3.88 in	--
December	31°	21°	3.66 in	--
Year	54°		34.62 in	--

Frequently asked questions

What is the hottest month in Pinnacle, MT?: July is the warmest month, with a normal high of 82°F at Hungry Horse Dam.
What is the coldest month in Pinnacle, MT?: February is the coldest month, with a normal low of 20°F.
What is the wettest month in Pinnacle, MT?: November has the most precipitation on average, about 3.88 inches.

Today

Pinnacle, MT forecast

Data sources

U.S. Climate Normals 1991-2020NOAA National Centers for Environmental Information
U.S. Climate Normals 1991-2020 (daily) and GHCN-Daily via Access Data ServiceNOAA National Centers for Environmental Information

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About this data

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Climate normals are 30-year averages measured at one weather station, which may be miles from the place named here or at a different elevation.

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