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Weather in Ketchum, ID · National Weather Service + NOAA

Ketchum is snow country

Ketchum has cold, snowy winters and pleasant summers, with very little rain. A typical July afternoon reaches 83°, a January night drops to 8°, and about 102 inches of snow falls in a normal winter. Normal November highs come to 41°, and lows to 19°.

Winter 33°/9°Spring 53°/26°Summer 78°/43°Fall 57°/28°
Right now
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Sunrise 9:15 am · sunset 7:27 pm

Getting the latest forecast from the National Weather Service…

What stands out about Ketchum’s weather

Read from 30 years of NOAA records. Each one opens the full story on the Climate page.

Climate →
Snow countryAbout 102 inches a winter, more than 189 of 201 Idaho towns.It hardly ever freezesOnly 100% of years see a night at 32° or below.Among Idaho’s coldest wintersJanuary nights average 8°, colder than 219 of 234 Idaho towns.A dry climateJust 17 inches of rain and melted snow a year, less than 92% of U.S. towns.
A normal year

Where today sits in Ketchum’s year

Typical highs and lows month by month, from 30 years of NOAA records.

Full climate →
Winter
33° / 9°
30 days with an inch or more of snow
Spring
53° / 26°
Frost is rare by spring
Summer
78° / 43°
4 days reach 90° in a normal year
Fall now
57° / 28°
Mild well into the fall
Best months to be outside
JulAug
Highs of 62–84° and lows of 40° or more
How much snow does Ketchum get?About 102 inches a winter.When is it wettest?December, with 2.6 inches.Is it warmer than it used to be?+1.4° vs. the 20th century.

Weather talk

Road reports, first frosts and storm memories from neighbors in Ketchum.

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Forecast, conditions and alerts: National Weather Service. Climate: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000. Temperatures and rainfall come from NOAA’s gridded normals for Ketchum itself (about a 3-mile square). Snow, frost dates and day counts: the NOAA station at Ketchum Rs, ID (1 mi). Sunrise and sunset are calculated from the town’s position. Normals are 30-year averages, not a forecast.