CHEYENNE, Wyo. — Southeast Wyoming will see rain from a Pacific storm system today and Tuesday, which will lower the temperature.
Tuesday’s high temperatures are predicted to be in the 50s and low 60s, which is significantly cooler than the warm weekend temperatures.
Widespread rain is expected to start late this morning and last through the evening, according to the Cheyenne National Weather Service. Most locations along the Interstate 80 corridor will receive between one-third and two-thirds of an inch of precipitation. Additionally, gusty winds of up to 35 mph are anticipated.
Snow will be brought by the storm to regions higher than 8,500 feet. Above 10,000 feet, accumulation could reach 4 to 8 inches, especially in the Snowy Range.
With overnight lows in the upper 20s and low 30s, regions west of the Laramie Range may experience the first freeze of the season early on Wednesday.
By Thursday, a ridge of high pressure is predicted to move in, bringing with it warmer and drier weather. By the end of the week, highs will be back in the mid-seventies.
On Sunday, isolated showers and thunderstorms may reappear in the southern Laramie Valley and the Snowy Range.
Detailed Forecast
Today: Showers likely and a thunderstorm possible, mainly after noon. Partly sunny, with a high near 70. West wind at 10–15 mph shifting to the north in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight: Showers likely and a thunderstorm possible, then showers after midnight. Low around 42. North wind at 10–15 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday: Showers, with thunderstorms also possible after 3 p.m. High near 54. Breezy, with a north wind at 15–20 mph and gusts as high as 30 mph. Chance of precipitation is 80%.
Tuesday Night: Isolated showers before midnight. Partly cloudy, with a low around 40. West-northwest wind at 5–10 mph. Chance of precipitation is 20%.
Wednesday: Sunny, with a high near 68. West-northwest wind at around 5 mph shifting to the south in the afternoon.
Wednesday Night: Clear, with a low around 42.
Thursday: Sunny, with a high near 76.
Thursday Night: Mostly clear, with a low around 45.
Friday: Sunny, with a high near 77.
Friday Night: Mostly clear, with a low around 47.
Saturday: Sunny, with a high near 73.
Saturday Night: Mostly clear, with a low around 45.
Sunday: Mostly sunny, with a high near 73.
