UPDATES: Freeze Watch Issued, Laramie Now Under Winter Weather Adivsory

UPDATES: Freeze Watch Issued, Laramie Now Under Winter Weather Adivsory

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UPDATE: A Freeze Watch has now been issued for areas of southeast Wyoming including Cheyenne and Laramie for Monday night

Overnight Monday sub freezing temperatures, some to near record lows, are likely. We have issued a freeze watch for all areas outside the mountains through 10 AM Tuesday. Lows in the basins and foothills may fall to 15-20°F, 25-30°F in the plains east of Laramie Ranges. Take actions to protect plants, pets, and equipment that are sensitive to the cold:

May be an image of map, arctic and text that says '! From 9 P Mon- 10AM Tuesday FREEZE WATCH Freeze FreezeWatch Watch Overnight Monday into hfftTtleriodayjit Tuesday TuesdayMorning Morning Hazards Lows 15°F to 30°F K Matel WeatherForecastOffic Forecast Office Weather Chevenne Cheyenne,WY WY ssuedMay 2026 3:14M 25 Bill Redbird Take action to protect temperature sensitive plants, outdoor gardens, crops, or temperature sensitive equipment. 1 Douglas Lusk Harrison Chadron Shirley Basin 80 Rawlins Garrett Wheatland Torrington Alliance NATIONAL WEATHER SERVICE CHEYENNE WYOMING Arlington Saratoga 25 Scottsbluff Bridgeport Harrisburg Laramie Baggs NWSCheyenne Cheyenne Kimball Sidney weather weather.govleys sovkys'

UPDATE:

Update to the winter storm products starting tonight through Monday. We have included Laramie to a winter weather advisory with possible snow accumulations of 2 to 6 inches. The Sierra Madre Ranges has been upgraded to a Winter Storm Warning. Remember to pack for emergencies when traveling in these areas.

Graphic of winter impacts starting Sunday night through 6 PM Monday. The what, where, when, and action text on the left side. A map of active winter storm warnings for the area east of the Laramie Ranges, advisories for some of the foothills, and freeze warning for Niobrara County on the right.

Original Post; The Cheyenne Office of the National Weather Service says up to 20 inches of snow are possible in the mountains of southeast Wyoming.

Up to 10 inches is possible at tome lower elevations

Winter Storm Warnings have been issued for some areas, with Winter Weather Advisories in others.

Cheyenne and Laramie are both just slightly outside the area covered by warnings or advisories. But both a Winter Storm Warning and a Winter Weather Advisory have been issued for areas in and around the Interstate 80 Summit.

The agency poste4d the following early Sunday morning, May 17:

 Winter Storm Watches were upgraded to Winter Storm Warnings with significant snow accumulation expected along with some blowing and drifting snow. Lower confidence for the Interstate 25 corridor, Laramie Valley, and Saratoga area, but advisories or warnings may need to be extended to these areas later. Expect mostly rain below 4500 feet with a change over to snow on Monday, but little or no accumulation is forecast.

Meanwhile, strong to marginally severe storms are possible in much of the region on Sunday:

Isolated strong to marginally severe thunderstorms possible today. Primary threats are strong gusty winds and brief very heavy rainfall, but a few storms may contain hail up to the size of quarters.


Cheyenne, Laramie Forecasts

Cheyenne Forecast

Today
Showers and possibly a thunderstorm, mainly after noon. Temperature falling to around 54 by 5pm. North northeast wind 10 to 15 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Rain showers before midnight, then rain and snow showers. Some thunder is also possible. Low around 31. Northeast wind 10 to 15 mph. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.
Monday
Snow showers. Temperature falling to around 32 by 9am. Breezy, with an east northeast wind 15 to 20 mph becoming north in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.
Monday Night
A 30 percent chance of snow showers before midnight. Mostly cloudy, with a low around 22. North wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday
A slight chance of rain and snow showers between noon and 3pm, then a slight chance of rain showers after 3pm. Widespread frost between 7am and 8am. Otherwise, partly sunny, with a high near 48. West wind 5 to 10 mph. Chance of precipitation is 20%.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 30. Chance of precipitation is 30%.
Wednesday
A slight chance of rain and snow showers before noon, then a chance of rain showers. Some thunder is also possible. Partly sunny, with a high near 56. Chance of precipitation is 30%.
Wednesday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 35.
Thursday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 60.
Thursday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 36.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 67.
Friday Night
Partly cloudy, with a low around 40.
Saturday
A chance of showers and thunderstorms. Sunny, with a high near 71.

Laramie Forecast

Today
Showers and possibly a thunderstorm after noon. High near 56. Northwest wind around 10 mph becoming east northeast in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Rain showers before 11pm, then rain, possibly mixed with snow showers between 11pm and midnight, then snow showers after midnight. Some thunder is also possible. Low around 30. Blustery, with an east northeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Monday
Snow showers. Some thunder is also possible. Temperature falling to around 29 by 5pm. Breezy, with an east northeast wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Monday Night
A 30 percent chance of snow showers before midnight. Mostly cloudy, with a low around 16. North northeast wind 10 to 15 mph becoming west after midnight.
Tuesday
A 20 percent chance of snow showers after noon. Widespread frost before 8am. Otherwise, partly sunny, with a high near 41. West wind 5 to 10 mph.
Tuesday Night
A 20 percent chance of snow showers before midnight. Partly cloudy, with a low around 26.
Wednesday
A slight chance of rain and snow showers after noon. Some thunder is also possible. Widespread frost before 7am. Otherwise, mostly sunny, with a high near 51. Chance of precipitation is 20%.
Wednesday Night
Mostly cloudy, with a low around 32.
Thursday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 55.
Thursday Night
A slight chance of showers. Partly cloudy, with a low around 36.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 62.
Friday Night
Partly cloudy, with a low around 40.
Saturday
A slight chance of showers and thunderstorms. Sunny, with a high near 66.

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Gallery Credit: Kolby Fedore, Townsquare Media

Filed Under: Cheyenne National Weather Service
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