What is the hottest month in Mackay, ID?

July is the warmest month, with a normal high of 83°F at Mackay Lost Rvr Rs.

What is the coldest month in Mackay, ID?

January is the coldest month, with a normal low of 8°F.

What is the wettest month in Mackay, ID?

June has the most precipitation on average, about 1.45 inches.

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Checked Oct 25, 2026

Mackay, ID Climate

1991 to 2020 normals at Mackay Lost Rvr Rs, 0.3 mi from the center of Mackay, elevation 5897 ft.

Average weather by month

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

Month	High	Low	Precip.	Snow
January	30°	8°	0.75 in	--
February	34°	12°	0.51 in	--
March	44°	22°	0.72 in	--
April	55°	29°	0.88 in	--
May	65°	37°	1.23 in	--
June	73°	43°	1.45 in	--
July	83°	50°	0.65 in	--
August	82°	48°	0.68 in	--
September	72°	40°	0.77 in	--
October	58°	31°	0.84 in	--
November	41°	19°	0.53 in	--
December	29°	10°	0.87 in	--
Year	55°		9.88 in	--

Frequently asked questions

What is the hottest month in Mackay, ID?: July is the warmest month, with a normal high of 83°F at Mackay Lost Rvr Rs.
What is the coldest month in Mackay, ID?: January is the coldest month, with a normal low of 8°F.
What is the wettest month in Mackay, ID?: June has the most precipitation on average, about 1.45 inches.

Today

Mackay, ID forecast

Data sources

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

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About this data

Weather and emergencies: Weather, air quality and hazard information on this page is delayed and may be incomplete. It is not a substitute for official warnings. Always follow the National Weather Service, local emergency management and public safety officials. In an emergency, call 911. For evacuation orders, use your local official alert system.

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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