National Weather Service United States Department of Commerce

Heavy Snow For the Southern Rockies with Heavy Rain for Portions of the Southwest

A moist flow off the Pacific will bring heavy rain to southern California and Arizona with heavy snow for the southern Rocky Mountains Monday. More freezing rain is possible from the southern Plains to the central Mississippi Valley. Heavy snow is also expected for portions of New England and upstate New York Monday.
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Hazardous Weather Conditions

Current Conditions

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Guernsey WY

7 Day Forecast

For More Weather Information:

Cheyenne, WY Local Forecast Office

Tonight

Mostly Cloudy

Mostly
Cloudy

Low: -9 °C

Monday

Chance Rain/Snow Chance for Measurable Precipitation 30%

Chance
Rain/Snow

High: 4 °C

Monday
Night

Snow Chance for Measurable Precipitation 90%

Snow

Low: -11 °C

Tuesday

Snow Likely Chance for Measurable Precipitation 70%

Snow
Likely

High: -9 °C

Tuesday
Night

Mostly Cloudy

Mostly
Cloudy

Low: -22 °C

Wednesday

Mostly Sunny

Mostly
Sunny

High: -8 °C

Wednesday
Night

Mostly Clear

Mostly
Clear

Low: -16 °C

Thursday

Sunny

Sunny

High: 2 °C

Thursday
Night

Mostly Clear

Mostly
Clear

Low: -6 °C

Detailed Forecast

  • Tonight Mostly cloudy, with a low around -9. East southeast wind 5 to 10 km/h increasing to 15 to 20 km/h after midnight.
  • Monday A slight chance of snow before noon, then a chance of rain and snow. Mostly cloudy, with a high near 4. Southeast wind 15 to 20 km/h decreasing to 10 to 15 km/h in the afternoon. Chance of precipitation is 30%.
  • Monday Night A chance of snow before 9pm, then snow with areas of blowing snow after 9pm. Low around -11. Blustery, with a north northwest wind 15 to 25 km/h increasing to 25 to 35 km/h. Winds could gust as high as 50 km/h. Chance of precipitation is 90%. New snow accumulation of 7 to 11 centimeters possible.
  • Tuesday Snow likely with areas of blowing snow before noon, then a chance of snow after noon. Cloudy, with a high near -9. Wind chill values as low as -20. Blustery, with a north northwest wind 30 to 35 km/h decreasing to 25 to 30 km/h in the afternoon. Winds could gust as high as 50 km/h. Chance of precipitation is 70%. New snow accumulation of around a centimeter possible.
  • Tuesday Night Mostly cloudy, with a low around -22. Northwest wind 10 to 20 km/h.
  • Wednesday Mostly sunny, with a high near -8.
  • Wednesday Night Mostly clear, with a low around -16.
  • Thursday Sunny, with a high near 2.
  • Thursday Night Mostly clear, with a low around -6.
  • Friday Sunny, with a high near 7.
  • Friday Night Partly cloudy, with a low around -8.
  • Saturday Mostly sunny, with a high near 4.
  • Saturday Night Partly cloudy, with a low around -7.
  • Sunday Sunny, with a high near 7.