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Weather in Casper Mountain, WY · National Weather Service + NOAA

Casper Mountain is snow country

Casper Mountain has cold, snowy winters and cool summers. A typical July afternoon reaches 76°, a January night drops to 13°, and about 82 inches of snow falls in a normal winter. Normal November highs come to 36°, and lows to 20°.

Winter 28°/13°Spring 46°/27°Summer 72°/48°Fall 49°/31°
Right now
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Sunrise 8:42 am · sunset 6:55 pm

Getting the latest forecast from the National Weather Service…

What stands out about Casper Mountain’s weather

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

Climate →
Snow countryAbout 82 inches a winter, more than 95% of U.S. towns.Cool summersJuly afternoons average 76°, cooler than 98% of U.S. towns.Wetter than most of Wyoming25 inches of rain and melted snow a year, more than 201 of 205 Wyoming towns.
A normal year

Where today sits in Casper Mountain’s year

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

Full climate →
Winter
28° / 13°
24 days with an inch or more of snow
Spring
46° / 27°
Frost is rare by spring
Summer
72° / 48°
90° days are rare
Fall now
49° / 31°
Mild well into the fall
Best months to be outside
JunJulAugSep
Highs of 62–84° and lows of 40° or more
How much snow does Casper Mountain get?About 82 inches a winter.When is it wettest?April, with 3.7 inches.Is it warmer than it used to be?+1.6° vs. the 20th century.

Weather talk

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

Town Square →
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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 Casper Mountain itself (about a 3-mile square). Snow, frost dates and day counts: the NOAA station at Casper 4.3 Wsw, WY (7 mi, snow). Sunrise and sunset are calculated from the town’s position. Normals are 30-year averages, not a forecast.