FPUS55 KBOI 231956 ZFPBOI Zone Forecasts for Southwest Idaho/Southeast Oregon National Weather Service Boise ID 155 PM MDT Sun Aug 23 2026 Spot temperatures are for tonight, Monday, Monday night, and Tuesday. IDZ011-240300- West Central Mountains- 155 PM MDT Sun Aug 23 2026 .TONIGHT...Mostly clear. Lows 44 to 55. .MONDAY...Mostly sunny. Highs 77 to 91. .MONDAY NIGHT...Mostly cloudy. Lows 50 to 62. .TUESDAY...Sunny. Highs 78 to 92. .TUESDAY NIGHT...Mostly cloudy. Lows 52 to 63. .WEDNESDAY...Partly cloudy. A slight chance of showers and thunderstorms in the afternoon. Chance of rain 20 percent. Highs 78 to 91. .WEDNESDAY NIGHT THROUGH THURSDAY NIGHT...Partly cloudy. Lows 49 to 61. Highs 75 to 88. .FRIDAY THROUGH SATURDAY NIGHT...Mostly clear. Highs 71 to 86. Lows 44 to 55. .SUNDAY...Patchy fog in the morning. Sunny. Highs 70 to 83. && TEMPERATURE McCall 42 85 50 86 $$ = IDZ013-240300- Boise Mountains- 155 PM MDT Sun Aug 23 2026 .TONIGHT...Partly cloudy. Lows 44 to 59. .MONDAY...Mostly sunny. Patchy smoke in the afternoon. Highs 79 to 94. .MONDAY NIGHT...Decreasing clouds. Patchy smoke in the evening. Lows 48 to 63. .TUESDAY...Sunny. Highs 80 to 95. .TUESDAY NIGHT...Decreasing clouds. Lows 49 to 64. .WEDNESDAY THROUGH FRIDAY...Partly cloudy. Highs 78 to 93. Lows 46 to 61. .FRIDAY NIGHT THROUGH SUNDAY...Mostly clear. Lows 42 to 57. Highs 73 to 87. && TEMPERATURE Idaho City 44 93 51 94 $$ = IDZ028-240300- Camas Prairie- 155 PM MDT Sun Aug 23 2026 .TONIGHT...Partly cloudy. Lows 43 to 52. West winds 10 to 15 mph with gusts to 30 mph this evening, becoming light after midnight. .MONDAY...Mostly sunny. Highs 85 to 90. Light winds in the morning, becoming southeast around 10 mph with gusts to 20 mph in the afternoon. .MONDAY NIGHT...Mostly cloudy in the evening, then clearing. Lows 50 to 55. Southeast winds 10 to 15 mph in the evening, becoming light after midnight. .TUESDAY...Sunny. Highs 86 to 91. Southeast winds up to 10 mph. Gusts to 20 mph in the afternoon. .TUESDAY NIGHT...Mostly cloudy. Lows 51 to 57. Southwest winds 10 to 15 mph in the evening, becoming light after midnight. .WEDNESDAY THROUGH FRIDAY NIGHT...Partly cloudy. Highs 82 to 92. Lows 46 to 56. .SATURDAY THROUGH SUNDAY...Mostly clear. Highs 78 to 85. Lows 42 to 49. Breezy. && TEMPERATURE Fairfield 44 88 50 89 $$ = IDZ033-240300- Upper Weiser River- 155 PM MDT Sun Aug 23 2026 .TONIGHT...Mostly clear. Lows 56 to 62. Southwest winds up to 10 mph this evening, shifting to north after midnight. Gusts to 20 mph. .MONDAY...Mostly sunny. Highs 88 to 95. Northeast winds up to 10 mph with gusts to 20 mph in the morning, becoming light in the afternoon. .MONDAY NIGHT...Mostly cloudy. Lows 61 to 66. Southeast winds up to 10 mph. .TUESDAY...Sunny. Highs 90 to 96. North winds up to 10 mph in the morning, shifting to south around 10 mph in the afternoon. .TUESDAY NIGHT...Mostly cloudy. Lows 62 to 68. Southeast winds up to 10 mph. .WEDNESDAY THROUGH THURSDAY NIGHT...Partly cloudy. Highs 86 to 96. Lows 58 to 66. .FRIDAY THROUGH SUNDAY...Mostly clear. Highs 81 to 91. Lows 53 to 62. && TEMPERATURE Council 59 94 64 95 Cambridge 56 94 61 95 $$ = ORZ064-240300- Oregon Lower Treasure Valley- 155 PM MDT Sun Aug 23 2026 /1255 PM PDT Sun Aug 23 2026/ .TONIGHT...Increasing clouds. Lows 58 to 64. Northwest winds 10 to 15 mph with gusts to 25 mph. .MONDAY...Mostly sunny. Highs 90 to 95. Northwest winds up to 10 mph in the morning, becoming light in the afternoon. .MONDAY NIGHT...Mostly cloudy. Lows 60 to 67. Light winds. .TUESDAY...Sunny. Highs 93 to 98. Light winds. .TUESDAY NIGHT...Mostly cloudy. Lows 62 to 69. Light winds. .WEDNESDAY THROUGH THURSDAY NIGHT...Partly cloudy. Highs 91 to 99. Lows 59 to 68. .FRIDAY THROUGH SUNDAY...Mostly clear. Highs 85 to 94. Lows 55 to 63. && TEMPERATURE Ontario 58 93 60 96 $$ = IDZ012-240300- Lower Treasure Valley- 155 PM MDT Sun Aug 23 2026 .TONIGHT...Increasing clouds. Lows 55 to 62. Northwest winds up to 10 mph. .MONDAY...Mostly sunny. Highs 90 to 95. Light winds in the morning, becoming east up to 10 mph in the afternoon. .MONDAY NIGHT...Mostly cloudy. Lows 60 to 65. Southeast winds up to 10 mph. .TUESDAY...Sunny. Highs 93 to 98. Southeast winds up to 10 mph. .TUESDAY NIGHT...Mostly cloudy. Lows 61 to 67. Southeast winds up to 10 mph. .WEDNESDAY THROUGH THURSDAY NIGHT...Partly cloudy. Highs 90 to 98. Lows 59 to 67. .FRIDAY THROUGH SUNDAY...Mostly clear. Highs 84 to 93. Lows 54 to 62. && TEMPERATURE Caldwell 55 93 60 96 $$ = IDZ014-240300- Upper Treasure Valley- 155 PM MDT Sun Aug 23 2026 .TONIGHT...Partly cloudy. Lows 54 to 60. Northwest winds 10 to 15 mph. .MONDAY...Mostly sunny. Highs 91 to 96. East winds up to 10 mph. .MONDAY NIGHT...Partly cloudy. Lows 59 to 66. Southeast winds around 10 mph with gusts to 20 mph. .TUESDAY...Mostly sunny. Highs 94 to 99. Southeast winds 10 to 15 mph. .TUESDAY NIGHT...Decreasing clouds. Lows 60 to 67. Southeast winds up to 10 mph. .WEDNESDAY THROUGH THURSDAY NIGHT...Partly cloudy. Highs 91 to 99. Lows 58 to 67. .FRIDAY AND FRIDAY NIGHT...Partly cloudy. Highs 88 to 93. Lows 56 to 61. .SATURDAY THROUGH SUNDAY...Mostly clear. Highs 84 to 91. Lows 53 to 59. && TEMPERATURE Boise 60 93 66 95 Mountain Home 55 95 61 97 $$ = IDZ016-240300- Western Magic Valley- 155 PM MDT Sun Aug 23 2026 .TONIGHT...Partly cloudy. Lows 56 to 62. South winds up to 10 mph with gusts to 20 mph. .MONDAY...Partly cloudy with a chance of showers. A chance of thunderstorms. Thunderstorms may produce gusty winds in the afternoon. Chance of rain 30 percent. Highs 87 to 92. East winds 10 to 15 mph. .MONDAY NIGHT...Decreasing clouds. Lows 58 to 63. Southeast winds 10 to 15 mph. .TUESDAY...Mostly sunny. Highs 89 to 94. East winds 10 to 15 mph. .TUESDAY NIGHT...Mostly cloudy. Lows 60 to 65. Southeast winds around 10 mph. .WEDNESDAY...Partly cloudy. A slight chance of showers and thunderstorms in the afternoon. Chance of rain 20 percent. Highs 90 to 95. .WEDNESDAY NIGHT THROUGH THURSDAY NIGHT...Partly cloudy. Lows 58 to 65. Highs 88 to 93. .FRIDAY...Partly sunny. Highs 84 to 89. .FRIDAY NIGHT...Partly cloudy. Lows 55 to 60. .SATURDAY...Partly cloudy with a 20 percent chance of showers. Highs 82 to 87. .SATURDAY NIGHT...Mostly clear. Lows 53 to 58. .SUNDAY...Mostly sunny. Highs 80 to 85. && TEMPERATURE Jerome 61 87 60 89 Twin Falls 62 88 60 90 $$ = IDZ029-240300- Owyhee Mountains- 155 PM MDT Sun Aug 23 2026 .TONIGHT...Partly cloudy. Lows 54 to 63. .MONDAY...Partly cloudy. A slight chance of showers and thunderstorms in the afternoon. Thunderstorms may produce gusty winds in the afternoon. Chance of rain 20 percent. Highs 83 to 91. .MONDAY NIGHT...Partly cloudy. A slight chance of showers and thunderstorms in the evening. Thunderstorms may produce gusty winds in the evening. Chance of rain 20 percent. Lows 57 to 65. .TUESDAY...Mostly sunny. Highs 86 to 92. .TUESDAY NIGHT...Decreasing clouds. Lows 59 to 68. .WEDNESDAY THROUGH FRIDAY NIGHT...Partly cloudy. Highs 82 to 92. Lows 55 to 65. .SATURDAY THROUGH SUNDAY...Mostly clear. Highs 77 to 86. Lows 50 to 58. $$ = IDZ015-240300- Southwest Highlands- 155 PM MDT Sun Aug 23 2026 .TONIGHT...Increasing clouds. Lows 57 to 62. .MONDAY...Partly cloudy with a chance of showers. A chance of thunderstorms. Thunderstorms may produce gusty winds in the afternoon. Chance of rain 30 percent. Highs 85 to 91. .MONDAY NIGHT...Partly cloudy. A chance of showers and thunderstorms in the evening. Thunderstorms may produce gusty winds in the evening. Chance of rain 30 percent. Lows 57 to 62. .TUESDAY...Mostly sunny. Highs 87 to 93. .TUESDAY NIGHT...Decreasing clouds. Lows 58 to 65. .WEDNESDAY...Partly cloudy. A slight chance of thunderstorms in the afternoon. Highs 89 to 95. .WEDNESDAY NIGHT THROUGH FRIDAY NIGHT...Partly cloudy. Lows 53 to 63. Highs 84 to 92. Breezy. .SATURDAY AND SATURDAY NIGHT...Mostly clear. Highs 83 to 88. Lows 51 to 56. Breezy. .SUNDAY...Mostly sunny. Highs 81 to 86. $$ = IDZ030-240300- Southern Twin Falls County- 155 PM MDT Sun Aug 23 2026 .TONIGHT...Increasing clouds. Lows 57 to 63. .MONDAY...Showers likely. A chance of thunderstorms. Thunderstorms may produce gusty winds in the afternoon. Chance of rain 60 percent. Highs 86 to 91. .MONDAY NIGHT...Mostly cloudy with a chance of showers and thunderstorms in the evening, then partly cloudy after midnight. Thunderstorms may produce gusty winds in the evening. Chance of rain 30 percent. Lows 58 to 63. .TUESDAY...Partly cloudy with a slight chance of showers. A slight chance of thunderstorms. Thunderstorms may produce gusty winds in the afternoon. Chance of rain 20 percent. Highs 88 to 93. .TUESDAY NIGHT...Decreasing clouds. Lows 60 to 65. .WEDNESDAY...Partly cloudy. A chance of showers with a slight chance of thunderstorms in the afternoon. Chance of rain 30 percent. Highs 88 to 93. .WEDNESDAY NIGHT THROUGH THURSDAY NIGHT...Partly cloudy. Lows 59 to 66. Highs 87 to 92. .FRIDAY...Partly cloudy with a 20 percent chance of showers. Highs 84 to 89. .FRIDAY NIGHT AND SATURDAY...Partly cloudy. A 20 percent chance of showers. Lows 56 to 61. Highs 83 to 88. .SATURDAY NIGHT...Increasing clouds. Lows 53 to 58. .SUNDAY...Mostly sunny. Highs 81 to 86. $$ = ORZ062-240300- Baker County- 1255 PM PDT Sun Aug 23 2026 .TONIGHT...Mostly clear. Patchy smoke after midnight. Lows 41 to 56. Northwest winds 10 to 15 mph with gusts to 25 mph. .MONDAY...Mostly sunny. Patchy smoke. Highs 86 to 94. West winds up to 10 mph in the morning, shifting to east in the afternoon. .MONDAY NIGHT...Decreasing clouds. Lows 50 to 63. Southeast winds up to 10 mph. .TUESDAY...Sunny. Highs 88 to 96. Southeast winds up to 10 mph. Gusts to 20 mph in the afternoon. .TUESDAY NIGHT...Decreasing clouds. Patchy smoke after midnight. Lows 52 to 65. South winds up to 10 mph. Gusts to 25 mph in the evening. .WEDNESDAY AND WEDNESDAY NIGHT...Partly cloudy. Highs 88 to 97. Lows 47 to 61. .THURSDAY...Sunny. Highs 84 to 92. .THURSDAY NIGHT...Partly cloudy in the evening, then clearing. Lows 43 to 57. .FRIDAY THROUGH SUNDAY...Mostly clear. Highs 80 to 90. Lows 38 to 53. && TEMPERATURE Baker City 41 90 50 94 $$ = ORZ061-240300- Harney County- 1255 PM PDT Sun Aug 23 2026 .TONIGHT...Partly cloudy. Lows 46 to 55. North winds 10 to 15 mph. .MONDAY...Partly cloudy. A chance of rain showers and thunderstorms in the afternoon. Thunderstorms may produce gusty winds in the afternoon. Chance of rain 30 percent. Highs 81 to 91. Southeast winds 10 to 15 mph. Gusts to 25 mph in the afternoon. .MONDAY NIGHT...Patchy smoke in the evening. Mostly cloudy with a chance of showers and thunderstorms in the evening, then partly cloudy after midnight. Thunderstorms may produce gusty winds in the evening. Chance of rain 30 percent. Lows 49 to 59. South winds 10 to 15 mph. Gusts to 25 mph in the evening. .TUESDAY...Mostly sunny. Highs 83 to 92. South winds 10 to 15 mph. Gusts to 30 mph in the afternoon. .TUESDAY NIGHT...Partly cloudy. Lows 49 to 59. Southwest winds 10 to 15 mph. Gusts to 30 mph in the evening. .WEDNESDAY THROUGH FRIDAY...Partly cloudy. Highs 81 to 91. Lows 45 to 58. .FRIDAY NIGHT THROUGH SUNDAY...Mostly clear. Lows 40 to 53. Highs 76 to 86. && TEMPERATURE Burns 47 90 49 92 $$ = ORZ063-240300- Malheur County- 155 PM MDT Sun Aug 23 2026 /1255 PM PDT Sun Aug 23 2026/ .TONIGHT...Partly cloudy. Lows 51 to 61. North winds 10 to 15 mph with gusts to 25 mph. .MONDAY...Partly cloudy. A chance of showers and thunderstorms in the afternoon. Thunderstorms may produce gusty winds in the afternoon. Chance of rain 30 percent. Highs 88 to 94. East winds up to 10 mph with gusts to 20 mph. .MONDAY NIGHT...Mostly cloudy with a chance of showers and thunderstorms in the evening, then partly cloudy after midnight. Thunderstorms may produce gusty winds in the evening. Chance of rain 30 percent. Lows 55 to 64. Southeast winds 10 to 15 mph. .TUESDAY...Mostly sunny. Highs 90 to 96. South winds 10 to 15 mph. Gusts to 25 mph in the afternoon. .TUESDAY NIGHT...Mostly cloudy. Lows 57 to 66. South winds 10 to 15 mph. Gusts to 25 mph in the evening. .WEDNESDAY THROUGH FRIDAY...Partly cloudy. Highs 86 to 96. Lows 53 to 63. .FRIDAY NIGHT THROUGH SUNDAY...Mostly clear. Lows 48 to 58. Highs 83 to 90. $$ =