UPDATE: At 1p.m. the Cheyenne Office of the National Weather Service issued a severe thunderstorm watch for southeast Wyoming, including Laramie County.

A Severe T'Storm Watch is in effect for portions of southeast Wyo and the Neb panhandle through this evening. The primary concern is very large hail, although the stronger storms will also be capable of a tornado or damaging winds

May be an image of map and text that says 'Valid Until 8:00 PM MDT Monday June 2026 Severe Thunderstorm Watch Threat Information on Casper Douglas TORNADOES Couple Tornadoes Possible HAIL Scatterec Hail HailU To Tennis Ball Size Possible Scottsbluff Cheyenne WIND Scattered Gusts Up To MPH Possible Sterling Fort Collins Firestone Silverthorne Denver Potential Exposure Leadville 70 1 Population: 5,013,290 Schools: 1504 Hospitals: 85 Colorado Springs Goodland Pueblo ta Junta Alamosa Lamar Trinidad Severe Thunderstorm #262'

The agency also issued an updated map for possible weather hazard around 12 noon:

Thunderstorms will affect much of the region this afternoon and evening. Some storms may be strong or severe, capable of producing damaging winds, very large hail, and a tornado or two. The primary area concern is far southeast Wyoming and the Nebraska panhandle.

Original Post: The Cheyenne Office of the National Weather Service is warning about possible sever storms in southeast Wyoming this afternoon and evening [June 1].

As of Monday morning, Laramie was just outside of the warning area for large hail and strong winds, but Cheyenne was included in areas covered by those warnings. The agency says tornadoes are also possible in extreme southeast Wyoming, but the area covered by that hazard did not include either Cheyenne or Laramie.

The agency posted the following on its website:

There is a Slight Risk (Level 2 of 5) for severe weather across far southeastern Wyoming and western Nebraska for Monday. All modes of severe weather are possible: hail (up to 2 inches), damaging wind gusts, and an isolated tornado or two. The strongest storms are expected between 3 and 9 PM, with storms starting in southeast Wyoming and moving east into the Nebraska Panhandle. Stay weather aware on Monday and have multiple ways to receive warnings!

Here are the maps showing other possible hazards

May be an image of map and text

Cheyenne, Laramie Forecasts

Cheyenne Forecast

Today
A 30 percent chance of showers and thunderstorms after 3pm. Sunny, with a high near 73. South southeast wind 5 to 15 mph.
Tonight
A 20 percent chance of showers and thunderstorms before 9pm. Areas of fog after midnight. Otherwise, partly cloudy, with a low around 51. South southeast wind 5 to 10 mph.
Tuesday
A 30 percent chance of showers and thunderstorms after noon. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 75. South southeast wind 5 to 15 mph.
Tuesday Night
Partly cloudy, with a low around 48. South southeast wind 5 to 10 mph becoming west southwest after midnight.
Wednesday
A 50 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 77. West wind 5 to 10 mph becoming east northeast in the afternoon.
Wednesday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Partly cloudy, with a low around 48. Chance of precipitation is 30%.
Thursday
A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 79.
Thursday Night
Partly cloudy, with a low around 49.
Friday
A slight chance of showers and thunderstorms after noon. Sunny, with a high near 82.
Friday Night
Partly cloudy, with a low around 49.
Saturday
Sunny, with a high near 84.
Saturday Night
Partly cloudy, with a low around 51.
Sunday
Mostly sunny, with a high near 84.

Laramie Forecast

Today
A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 65. South wind 10 to 15 mph.
Tonight
Partly cloudy, with a low around 48. South southeast wind 10 to 15 mph.
Tuesday
A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 69. South wind around 10 mph.
Tuesday Night
Partly cloudy, with a low around 47. South wind 5 to 10 mph.
Wednesday
A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 70. West southwest wind 5 to 10 mph becoming northeast in the afternoon.
Wednesday Night
Partly cloudy, with a low around 47.
Thursday
A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 71.
Thursday Night
Partly cloudy, with a low around 49.
Friday
A slight chance of showers and thunderstorms after noon. Sunny, with a high near 72.
Friday Night
Partly cloudy, with a low around 49.
Saturday
Sunny, with a high near 75.
Saturday Night
Partly cloudy, with a low around 52.
Sunday
Mostly sunny, with a high near 74.

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