Weather forecast for: Casper WY
Last Update: 9:17 am MDT Aug 23, 2026
Today: A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 92. Breezy, with a west northwest wind 15 to 18 mph, with gusts as high as 30 mph.
Tonight: A 20 percent chance of showers and thunderstorms before 9pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 61. West northwest wind 5 to 14 mph becoming south southwest after midnight. Winds could gust as high as 24 mph.
Monday: Mostly sunny, with a high near 89. Southwest wind 7 to 9 mph becoming west northwest in the afternoon.
Monday Night: A 30 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 57. North northwest wind 5 to 9 mph becoming light and variable.
Tuesday: Mostly sunny, with a high near 83. Light and variable wind becoming north 5 to 9 mph in the morning. Winds could gust as high as 20 mph.
Tuesday Night: A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 56. North northeast wind 5 to 9 mph becoming calm after midnight.
Wednesday: Mostly sunny, with a high near 86. Calm wind becoming north 5 to 8 mph in the afternoon.
Wednesday Night: Partly cloudy, with a low around 57.
Thursday: Mostly sunny, with a high near 89.
Thursday Night: A 10 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 58.
Friday: Mostly sunny, with a high near 89.
Friday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 58.
Saturday: Mostly sunny, with a high near 88. Breezy.