Arco/Mud Lake Desert-Upper Snake River Plain- Including Mud Lake, INL, Craters of the Moon NM, Idaho Falls, Rexburg, and St. Anthony 132 PM MDT Fri Apr 26 2024 .TONIGHT...Mostly cloudy. A chance of showers and thunderstorms in the evening...then a chance of rain showers and a slight chance of thunderstorms after midnight. Lows 37 to 44. North winds 10 to 20 mph. .SATURDAY...Rain showers in the morning...then a chance of rain showers and a slight chance of thunderstorms in the afternoon. Highs 51 to 58. North winds 10 to 15 mph...shifting to southwest in the afternoon. .SATURDAY NIGHT...Mostly cloudy. A chance of showers and thunderstorms in the evening...then a slight chance of rain showers after midnight. Lows 34 to 41. Southwest winds 10 to 15 mph. Chance of precipitation 50 percent. .SUNDAY...Mostly cloudy with a chance of rain showers. Highs 52 to 61. Southwest winds 10 to 15 mph. Chance of precipitation 50 percent. .SUNDAY NIGHT...Mostly cloudy. Breezy. Lows 32 to 40. Southwest winds 15 to 25 mph. .MONDAY...Partly sunny with a chance of rain showers and a slight chance of thunderstorms. Windy. Highs 52 to 59. .MONDAY NIGHT...Mostly clear. Breezy. Lows 25 to 33. .TUESDAY...Mostly sunny with a slight chance of rain showers. Highs 49 to 57. .TUESDAY NIGHT...Partly cloudy. Lows 28 to 35. .WEDNESDAY...Sunny with a slight chance of rain showers. Highs 53 to 61. .WEDNESDAY NIGHT...Partly cloudy. Lows 30 to 37. .THURSDAY...Sunny with a slight chance of rain showers. Highs 60 to 68. .THURSDAY NIGHT AND FRIDAY...Partly cloudy. A slight chance of rain showers. Lows 35 to 42. Highs 57 to 67. $$