Both Cheyenne and Laramie could face severe storms featuring heavy rainfall, strong winds and possibly isolated large hail.

That's according to the Cheyenne Office of the National Weather Service. The agency posted the following on its website:


After a short break yesterday, monsoon moisture has returned to the area today and is expected to produce scattered to numerous thunderstorms this afternoon and evening. While heavy rainfall is the primary threat today, isolated storms will have the potential to produce strong gusty winds and hail. A few showers and thunderstorms may continue through the night tonight and into Tuesday morning.


There is a marginal risk for excessive rainfall over much of the area on Monday and Tuesday as monsoon moisture returns to the region. The areas in green represent where heavy rain and excessive rainfall could lead to increased chances for flash flooding. Expect scattered to numerous storms across southeast Wyoming and western Nebraska on Monday. These storms will begin early in the afternoon and could continue into the overnight hours. On Tuesday, expected another round of scattered convection, but will less coverage of storms. There is also a marginal risk for severe thunderstorms for portions of the area on both days.

Cheyenne, Laramie Forecasts

Cheyenne Forecast

Today
Showers likely and possibly a thunderstorm between noon and 3pm, then showers and thunderstorms likely after 3pm. Mostly sunny, with a high near 81. South wind 5 to 15 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers and thunderstorms before midnight, then a slight chance of showers between midnight and 3am. Mostly cloudy, with a low around 56. Southeast wind 5 to 10 mph becoming southwest after midnight. Chance of precipitation is 50%.
Tuesday
Showers likely and possibly a thunderstorm between noon and 3pm, then showers and thunderstorms likely after 3pm. Mostly sunny, with a high near 84. Southwest wind 5 to 10 mph. Chance of precipitation is 70%.
Tuesday Night
A 40 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 55. South southwest wind 5 to 10 mph becoming west after midnight.
Wednesday
Showers and thunderstorms likely after noon. Mostly sunny, with a high near 81. West northwest wind 10 to 15 mph. Chance of precipitation is 60%.
Wednesday Night
A 30 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 51.
Thursday
A 40 percent chance of showers and thunderstorms after noon. Sunny, with a high near 79.
Thursday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 50.
Friday
A chance of showers and thunderstorms after noon. Sunny, with a high near 85.
Friday Night
Mostly clear, with a low around 54.
Saturday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Saturday Night
Partly cloudy, with a low around 56.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 84.
Laramie Forecast
Today
Showers and thunderstorms likely between noon and 3pm, then showers and possibly a thunderstorm after 3pm. High near 71. Southwest wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers and thunderstorms before 3am, then a slight chance of showers. Partly cloudy, with a low around 53. South southeast wind around 10 mph. Chance of precipitation is 50%.
Tuesday
A slight chance of showers, then showers and thunderstorms likely after 9am. Partly sunny, with a high near 70. West southwest wind 10 to 15 mph. Chance of precipitation is 60%.
Tuesday Night
A 40 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 52. West southwest wind around 10 mph.
Wednesday
Showers and thunderstorms likely after noon. Mostly sunny, with a high near 67. West northwest wind 10 to 15 mph. Chance of precipitation is 60%.
Wednesday Night
A 30 percent chance of showers and thunderstorms before midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 47.
Thursday
A 40 percent chance of showers and thunderstorms after noon. Sunny, with a high near 66.
Thursday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 49.
Friday
A chance of showers and thunderstorms after noon. Sunny, with a high near 73.
Friday Night
Mostly clear, with a low around 52.
Saturday
A slight chance of showers and thunderstorms. Sunny, with a high near 75.
Saturday Night
Partly cloudy, with a low around 54.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 71.