Includes the Counties: Upper Treasure Valley Tonight...Clear. Lows 47 to 57. East winds 10 to 15 mph. Gusts to 25 mph in the evening. Friday...Sunny...Very warm. Highs 87 to 93. East winds 10 to 15 mph. Friday Night...Mostly clear. Lows 54 to 64. Northeast winds up to 10 mph in the evening...Shifting to southeast around 10 mph after midnight. Saturday...Mostly sunny. Continued very warm. Highs 83 to 91. East winds up to 10 mph in the morning...Shifting to northwest in the afternoon. Saturday Night...Mostly clear. Lows 48 to 53. Northwest winds 10 to 20 mph with gusts to 30 mph. Sunday...Partly cloudy. A 20 percent chance of rain showers. Not as warm. Highs 63 to 70. Lows 42 to 52. Breezy. Sunday Night...Partly cloudy. A 20 percent chance of rain showers. Not as warm. Highs 63 to 70. Lows 42 to 52. Breezy. Labor Day...Mostly clear. Highs 62 to 68. Lows 39 to 47. Monday Night...Mostly clear. Highs 62 to 68. Lows 39 to 47. Tuesday...Partly cloudy. Highs 69 to 74. Lows 43 to 53. Tuesday Night...Partly cloudy. Highs 69 to 74. Lows 43 to 53. Wednesday...Partly cloudy with a 20 percent chance of rain showers. Highs 69 to 75. Lows 46 to 56. Thursday...Partly cloudy with a 20 percent chance of rain showers. Highs 69 to 75. Lows 46 to 56.