Road Travel › Mountain pass weather

Sherman Summit weather

I-80 between Cheyenne and Laramie, Wyoming. The summit is 8,676 ft.

Summit
8,676 ft
Highway
I-80
Cheyenne
40 mi
Laramie
11 mi

Summit forecast, next 72 hours

Sherman Summit summit, 8,676 ft · Updated · Forecast: National Weather Service

  • New snow0 in
  • Strongest gusts30 mphMonday
  • Coldest42°F
ForecastSnowGustsTemp °F
TonightPartly Cloudy0 in20 mphLow 44°
SaturdaySunny0 in25 mphHigh 65°
Saturday NightPartly Cloudy0 in25 mphLow 41°
SundaySunny0 in25 mphHigh 67°
Sunday NightMostly Clear0 in20 mphLow 47°
MondaySunny0 in30 mphHigh 69°

Snow is the forecast new accumulation at the summit grid point. Dots use Road Travel’s driving-risk scale.

Typical weather by month

Monthly normals from the long-term stations nearest the summit. None sits exactly on the pass, so each column says how far away and how high it is.

MonthCrow Creek
8,330 ft · 3 mi east of the summit
Laramie
7,390 ft · 6 mi northwest of the summit
Laramie Airport
7,266 ft · 13 mi west of the summit
Precip (in)High / low °FSnow (in)High / low °F
Jan1.133° / 12°5.533° / 10°
Feb1.435° / 15°7.236° / 12°
Mar2.344° / 21°9.445° / 19°
Apr3.251° / 28°13.451° / 25°
May2.860° / 36°6.062° / 33°
Jun2.373° / 46°1.074° / 42°
Jul2.181° / 52°081° / 49°
Aug1.579° / 50°079° / 47°
Sep2.272° / 43°0.770° / 39°
Oct2.156° / 31°7.256° / 28°
Nov1.844° / 23°6.443° / 18°
Dec1.434° / 14°7.333° / 10°

NOAA NCEI U.S. Climate Normals, 1991–2020: Crow Creek (USS0005H02S, 8,330 ft); LARAMIE 4SE (USC00485417, 7,390 ft); LARAMIE RGNL AP (USW00024022, 7,266 ft). Snow days are days with at least 1 inch of new snow. “—” means the station does not publish that normal.

Cameras, road reports and winter rules

Conditions on the pass change by the hour, so these go straight to the official sources.

Check the official National Weather Service forecast for the summit and the road report before you leave.

Crossing Sherman Summit? See the summit at the hour you’ll be there

Road Travel times the forecast to your drive, so you see conditions at the summit when you will actually reach it, and get alerts about weather ahead on the way.

Questions about Sherman Summit

How high is Sherman Summit?

The summit is 8,676 ft above sea level, on I-80.

How far is Sherman Summit from Cheyenne and Laramie?

By road, the summit is 40 miles from Cheyenne, WY and 11 miles from Laramie, WY.

What is the snowiest month near Sherman Summit?

April. Laramie (7,390 ft, 6 mi northwest of the summit) averages 13.4 inches of snow that month (1991–2020 normals).

How cold does it get near Sherman Summit?

The coldest month is January. Laramie (7,390 ft, 6 mi northwest of the summit) averages a low of 12°F then (1991–2020 normals); the summit is 1,286 ft higher.