FPUS55 KBOI 210633 ZFPBOI Zone Forecasts for Southwest Idaho/Southeast Oregon National Weather Service Boise ID 1232 AM MDT Sat Mar 21 2026 Forecast Updated. Spot temperatures are for .FRIDAY THROUGH FRIDAY..., Saturday, Saturday night, and Sunday. IDZ011-211400- West Central Mountains- 1232 AM MDT Sat Mar 21 2026 .TODAY...Mostly cloudy after midnight, then rain showers likely. Chance of rain 60 percent. Cooler with highs 45 to 59. .TONIGHT...Mostly clear. Much colder with lows 21 to 33. .SUNDAY...Sunny. Highs 45 to 56. .SUNDAY NIGHT...Decreasing clouds. Lows 24 to 38. .MONDAY...Partly sunny. Highs 48 to 59. .MONDAY NIGHT...Mostly cloudy. A slight chance of rain and snow showers after midnight. Chance of precipitation 20 percent. Lows 34 to 44. .TUESDAY...Rain showers likely. Chance of rain 70 percent. Highs 46 to 58. .TUESDAY NIGHT...Rain showers likely in the evening, then a chance of rain and snow showers after midnight. Chance of precipitation 60 percent. Little snow accumulation expected. Lows 36 to 45. .WEDNESDAY...Decreasing clouds. Rain showers likely. Snow showers likely, mainly in the morning. Chance of precipitation 60 percent. Little snow accumulation expected. Highs 46 to 57. .WEDNESDAY NIGHT...Mostly cloudy with a chance of rain and snow showers in the evening, then partly cloudy with a slight chance of snow showers after midnight. Chance of precipitation 30 percent. Colder with lows 25 to 35. .THURSDAY AND THURSDAY NIGHT...Partly cloudy. Highs 40 to 52. Lows 22 to 32. .FRIDAY...Mostly sunny. Highs 47 to 57. && TEMPERATURE McCall 37 51 21 49 $$ = IDZ013-211400- Boise Mountains- 1232 AM MDT Sat Mar 21 2026 .TODAY...Mostly clear after midnight, then becoming partly sunny this morning, then becoming mostly sunny this afternoon. Cooler with highs 53 to 67. Breezy. .TONIGHT...Mostly clear. Much colder with lows 20 to 35. .SUNDAY...Mostly sunny. Highs 49 to 62. .SUNDAY NIGHT...Decreasing clouds. Lows 23 to 38. .MONDAY...Partly sunny. Highs 52 to 66. .MONDAY NIGHT...Mostly cloudy. A slight chance of rain showers after midnight. Chance of rain 20 percent. Lows 31 to 46. .TUESDAY...Mostly cloudy with a 50 percent chance of rain showers. Highs 52 to 67. .TUESDAY NIGHT...Mostly cloudy with a 40 percent chance of rain showers. Lows 32 to 47. .WEDNESDAY...Decreasing clouds. A chance of snow showers in the morning. A chance of rain showers. Chance of precipitation 40 percent. Highs 50 to 64. .WEDNESDAY NIGHT...Mostly cloudy with a slight chance of rain and snow showers in the evening, then partly cloudy after midnight. Chance of precipitation 20 percent. Lows 22 to 37. .THURSDAY AND THURSDAY NIGHT...Partly cloudy. Highs 44 to 57. Lows 18 to 33. .FRIDAY...Mostly sunny. Highs 50 to 62. && TEMPERATURE Idaho City 44 67 30 61 $$ = IDZ028-211400- Camas Prairie- 1232 AM MDT Sat Mar 21 2026 .TODAY...Increasing clouds. Cooler with highs 64 to 69. Windy. Northwest winds 10 to 20 mph, becoming west 20 to 25 mph with gusts to 40 mph this afternoon. .TONIGHT...Partly cloudy in the evening, then becoming mostly clear. Colder with lows 29 to 34. Windy. Northwest winds 15 to 25 mph with gusts to 35 mph in the evening, becoming west 10 to 15 mph with gusts to 25 mph after midnight. .SUNDAY...Mostly sunny. Highs 57 to 62. West winds 10 to 15 mph. .SUNDAY NIGHT...Mostly cloudy. Lows 31 to 36. West winds 10 to 15 mph in the evening, becoming light after midnight. .MONDAY...Partly sunny. Highs 62 to 67. Light winds in the morning, becoming south 10 to 15 mph in the afternoon. .MONDAY NIGHT...Mostly cloudy. Lows 38 to 43. .TUESDAY THROUGH WEDNESDAY...Mostly cloudy with a 20 percent chance of rain showers. Highs 60 to 68. Lows 40 to 45. Breezy. .WEDNESDAY NIGHT THROUGH THURSDAY NIGHT...Partly cloudy. Lows 27 to 36. Highs 51 to 56. Windy. .FRIDAY...Mostly sunny. Highs 57 to 62. && TEMPERATURE Fairfield 41 67 30 60 $$ = IDZ033-211400- Upper Weiser River- 1232 AM MDT Sat Mar 21 2026 .TODAY...Mostly cloudy after midnight, then partly cloudy with a chance of showers. Chance of rain 30 percent. Cooler with highs 59 to 64. Northwest winds 10 to 15 mph with gusts to 25 mph. .TONIGHT...Mostly clear. Much colder with lows 30 to 35. North winds 10 to 15 mph. Gusts to 25 mph in the evening. .SUNDAY...Mostly sunny. Highs 55 to 60. North winds up to 10 mph in the morning, becoming light in the afternoon. .SUNDAY NIGHT...Decreasing clouds. Lows 34 to 39. Light winds. .MONDAY...Partly sunny. Highs 59 to 64. Light winds. .MONDAY NIGHT...Mostly cloudy. Lows 42 to 47. .TUESDAY...Rain showers likely, mainly in the afternoon. Chance of rain 60 percent. Highs 59 to 64. .TUESDAY NIGHT AND WEDNESDAY...Mostly cloudy. A 40 percent chance of rain showers. Lows 43 to 48. Highs 58 to 63. .WEDNESDAY NIGHT THROUGH THURSDAY NIGHT...Partly cloudy. Lows 30 to 37. Highs 52 to 57. .FRIDAY...Mostly sunny. Highs 57 to 62. && TEMPERATURE Council 47 62 32 59 Cambridge 46 64 32 60 $$ = ORZ064-211400- Oregon Lower Treasure Valley- 1232 AM MDT Sat Mar 21 2026 /1132 PM PDT Fri Mar 20 2026/ .TODAY...Decreasing clouds. Cooler with highs 63 to 68. Breezy. Northwest winds 10 to 20 mph. Gusts to 30 mph. .TONIGHT...Mostly clear. Colder with lows 32 to 37. Breezy. Northwest winds 10 to 20 mph. Gusts to 30 mph in the evening. .SUNDAY...Mostly sunny. Highs 59 to 64. Northwest winds 10 to 15 mph in the morning, becoming light in the afternoon. .SUNDAY NIGHT...Decreasing clouds. Lows 34 to 40. North winds up to 10 mph. .MONDAY...Mostly sunny in the morning, then becoming mostly cloudy. Highs 62 to 67. Light winds. .MONDAY NIGHT...Mostly cloudy. Lows 44 to 49. .TUESDAY...Mostly cloudy with a 30 percent chance of rain showers. Highs 64 to 69. .TUESDAY NIGHT AND WEDNESDAY...Mostly cloudy with a 20 percent chance of showers. Lows 44 to 49. Highs 63 to 68. .WEDNESDAY NIGHT THROUGH THURSDAY NIGHT...Partly cloudy. Lows 31 to 39. Highs 54 to 59. .FRIDAY...Mostly sunny. Highs 60 to 65. && TEMPERATURE Ontario 46 67 33 62 $$ = IDZ012-211400- Lower Treasure Valley- 1232 AM MDT Sat Mar 21 2026 .TODAY...Partly cloudy after midnight, then becoming partly sunny this morning, then becoming mostly sunny this afternoon. Cooler with highs 65 to 70. Breezy. Light winds after midnight, becoming northwest 10 to 20 mph with gusts to 30 mph. .TONIGHT...Mostly clear. Colder with lows 34 to 39. Breezy. Northwest winds 10 to 20 mph. Gusts to 30 mph in the evening. .SUNDAY...Mostly sunny. Highs 59 to 64. Northwest winds up to 10 mph. .SUNDAY NIGHT...Decreasing clouds. Lows 36 to 41. North winds up to 10 mph. .MONDAY...Partly sunny. Highs 63 to 68. Southeast winds up to 10 mph. .MONDAY NIGHT...Mostly cloudy. Lows 44 to 49. .TUESDAY...Mostly cloudy with a 40 percent chance of rain showers. Highs 65 to 72. .TUESDAY NIGHT AND WEDNESDAY...Mostly cloudy with a 30 percent chance of showers. Lows 46 to 51. Highs 63 to 68. .WEDNESDAY NIGHT...Decreasing clouds. Colder with lows 35 to 40. .THURSDAY THROUGH FRIDAY...Partly cloudy. Highs 55 to 65. Lows 32 to 37. && TEMPERATURE Caldwell 46 69 35 63 $$ = IDZ014-211400- Upper Treasure Valley- 1232 AM MDT Sat Mar 21 2026 .TODAY...Increasing clouds. Cooler with highs 68 to 74. Windy. East winds up to 10 mph after midnight, shifting to northwest with gusts to 25 mph this morning, then increasing to 15 to 25 mph with gusts to 35 mph this afternoon. .TONIGHT...Partly cloudy in the evening, then clearing. Colder with lows 34 to 39. Windy. Northwest winds 15 to 25 mph. Gusts to 35 mph in the evening. .SUNDAY...Mostly sunny. Highs 61 to 66. Northwest winds 10 to 15 mph with gusts to 25 mph. .SUNDAY NIGHT...Decreasing clouds. Lows 35 to 40. Northwest winds 10 to 15 mph in the evening, becoming light after midnight. .MONDAY...Partly sunny. Highs 66 to 72. East winds up to 10 mph. .MONDAY NIGHT...Mostly cloudy. Lows 44 to 49. .TUESDAY AND TUESDAY NIGHT...Mostly cloudy with a 20 percent chance of rain showers. Highs 70 to 78. Lows 45 to 50. Breezy. .WEDNESDAY...Partly cloudy. A slight chance of showers in the morning. Chance of rain 20 percent. Highs 66 to 72. Breezy. .WEDNESDAY NIGHT...Decreasing clouds. Colder with lows 35 to 40. Breezy. .THURSDAY AND THURSDAY NIGHT...Partly cloudy. Cooler. Highs 56 to 61. Lows 32 to 37. Breezy. .FRIDAY...Mostly sunny. Highs 62 to 67. && TEMPERATURE Boise 50 69 37 62 Mountain Home 46 72 36 64 $$ = IDZ016-211400- Western Magic Valley- 1232 AM MDT Sat Mar 21 2026 .TODAY...Mostly clear after midnight, then becoming mostly sunny this morning, then becoming partly sunny this afternoon. Cooler with highs 69 to 74. Windy. Southeast winds around 10 mph after midnight, increasing to west 15 to 25 mph. .TONIGHT...Partly cloudy in the evening, then clearing. Colder with lows 36 to 41. Breezy. West winds 10 to 20 mph with gusts to 30 mph. .SUNDAY...Mostly sunny. Highs 60 to 65. Breezy. West winds 10 to 20 mph. .SUNDAY NIGHT...Mostly cloudy. Lows 36 to 41. West winds 10 to 15 mph in the evening, becoming light after midnight. .MONDAY...Partly sunny. Highs 68 to 73. East winds around 10 mph in the morning, shifting to north in the afternoon. .MONDAY NIGHT THROUGH TUESDAY NIGHT...Mostly cloudy. Lows 44 to 50. Highs 72 to 77. Breezy. .WEDNESDAY...Mostly sunny. Highs 68 to 73. Breezy. .WEDNESDAY NIGHT...Decreasing clouds. Colder with lows 34 to 39. Breezy. .THURSDAY...Mostly sunny. Cooler with highs 55 to 60. Breezy. .THURSDAY NIGHT...Decreasing clouds. Lows 32 to 37. Breezy. .FRIDAY...Mostly sunny. Highs 61 to 66. && TEMPERATURE Jerome 47 71 38 61 Twin Falls 49 71 40 61 $$ = IDZ029-211400- Owyhee Mountains- 1232 AM MDT Sat Mar 21 2026 .TODAY...Increasing clouds. Cooler with highs 60 to 67. Windy. Northwest winds around 25 mph this afternoon. .TONIGHT...Partly cloudy in the evening, then clearing. Colder with lows 32 to 37. Breezy. .SUNDAY...Mostly sunny. Highs 53 to 62. .SUNDAY NIGHT...Decreasing clouds. Lows 37 to 42. .MONDAY...Partly sunny. Highs 60 to 68. .MONDAY NIGHT...Mostly cloudy. Lows 44 to 49. .TUESDAY AND TUESDAY NIGHT...Mostly cloudy with a 20 percent chance of rain showers. Highs 66 to 71. Lows 43 to 48. Breezy. .WEDNESDAY...Decreasing clouds. A 20 percent chance of rain showers. Highs 59 to 65. Breezy. .WEDNESDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Colder with lows 32 to 37. Breezy. .THURSDAY AND THURSDAY NIGHT...Partly cloudy. Cooler. Highs 49 to 55. Lows 29 to 36. .FRIDAY...Mostly sunny. Highs 55 to 62. $$ = IDZ015-211400- Southwest Highlands- 1232 AM MDT Sat Mar 21 2026 .TODAY...Increasing clouds. Cooler with highs 67 to 72. Breezy. .TONIGHT...Partly cloudy in the evening, then clearing. Colder with lows 33 to 38. Breezy. .SUNDAY...Mostly sunny. Highs 58 to 64. .SUNDAY NIGHT...Mostly cloudy. Lows 36 to 41. .MONDAY...Partly sunny. Highs 67 to 72. .MONDAY NIGHT THROUGH TUESDAY NIGHT...Mostly cloudy. Lows 43 to 48. Highs 71 to 76. Breezy. .WEDNESDAY AND WEDNESDAY NIGHT...Mostly cloudy. Highs 66 to 71. Lows 30 to 35. Breezy. .THURSDAY...Mostly sunny. Cooler with highs 54 to 59. .THURSDAY NIGHT...Decreasing clouds. Lows 31 to 36. .FRIDAY...Mostly sunny. Highs 59 to 65. $$ = IDZ030-211400- Southern Twin Falls County- 1232 AM MDT Sat Mar 21 2026 .TODAY...Mostly clear after midnight, then becoming mostly sunny this morning, then becoming partly sunny this afternoon. Cooler with highs 68 to 73. Breezy. .TONIGHT...Partly cloudy. Colder with lows 36 to 41. Breezy. .SUNDAY...Mostly sunny. Cooler with highs 58 to 63. .SUNDAY NIGHT...Mostly cloudy. Lows 37 to 42. .MONDAY...Partly sunny. Highs 68 to 73. .MONDAY NIGHT AND TUESDAY...Mostly cloudy. Lows 45 to 50. Highs 73 to 78. Windy. .TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. Lows 44 to 49. Highs 68 to 73. Breezy. .WEDNESDAY NIGHT THROUGH THURSDAY NIGHT...Partly cloudy. Cooler. Lows 33 to 39. Highs 54 to 59. Breezy. .FRIDAY...Partly sunny. Highs 59 to 64. $$ = ORZ062-211400- Baker County- 1132 PM PDT Fri Mar 20 2026 .TODAY...Mostly cloudy after midnight, then rain showers likely this morning. Mostly sunny this afternoon. Chance of rain 60 percent. Much cooler with highs 54 to 62. Breezy. Northwest winds up to 10 mph with gusts to 20 mph after midnight, increasing to 10 to 20 mph with gusts to 35 mph. .TONIGHT...Mostly clear. Much colder with lows 22 to 32. Breezy. Northwest winds 10 to 20 mph. Gusts to 30 mph in the evening. .SUNDAY...Mostly sunny. Highs 54 to 60. Northwest winds up to 10 mph in the morning, shifting to southeast in the afternoon. .SUNDAY NIGHT...Decreasing clouds. Lows 28 to 38. East winds up to 10 mph in the evening, shifting to northwest after midnight. .MONDAY...Partly sunny. Highs 58 to 64. Light winds in the morning, becoming southeast 10 to 15 mph in the afternoon. .MONDAY NIGHT...Mostly cloudy. A slight chance of rain showers after midnight. Chance of rain 20 percent. Lows 37 to 45. .TUESDAY...Rain showers likely, mainly in the afternoon. Chance of rain 60 percent. Highs 58 to 64. .TUESDAY NIGHT...Mostly cloudy with a 30 percent chance of rain showers. Lows 36 to 45. .WEDNESDAY...A chance of snow showers in the morning. Partly cloudy with a chance of rain showers. Chance of precipitation 30 percent. Highs 55 to 63. .WEDNESDAY NIGHT THROUGH THURSDAY NIGHT...Partly cloudy. Lows 24 to 35. Highs 49 to 55. Breezy. .FRIDAY...Sunny. Highs 55 to 62. && TEMPERATURE Baker City 41 58 22 58 $$ = ORZ061-211400- Harney County- 1132 PM PDT Fri Mar 20 2026 .TODAY...Decreasing clouds. Cooler with highs 58 to 67. Breezy. West winds 10 to 15 mph with gusts to 30 mph. .TONIGHT...Mostly clear. Much colder with lows 23 to 34. Breezy. Northwest winds 10 to 20 mph with gusts to 30 mph in the evening, decreasing to around 10 mph after midnight. .SUNDAY...Mostly sunny. Highs 57 to 63. Light winds in the morning, becoming east up to 10 mph in the afternoon. .SUNDAY NIGHT...Decreasing clouds. Lows 28 to 40. East winds up to 10 mph. .MONDAY...Partly sunny. Highs 63 to 71. Light winds in the morning, becoming southwest 10 to 15 mph in the afternoon. .MONDAY NIGHT...Mostly cloudy. Lows 38 to 47. Breezy. .TUESDAY...Decreasing clouds. A 30 percent chance of rain showers. Highs 62 to 71. Windy. .TUESDAY NIGHT AND WEDNESDAY...Mostly cloudy. A 20 percent chance of rain showers. Lows 36 to 44. Highs 58 to 66. Breezy. .WEDNESDAY NIGHT THROUGH THURSDAY NIGHT...Partly cloudy. Lows 22 to 33. Highs 52 to 57. Breezy. .FRIDAY...Mostly sunny. Highs 58 to 64. && TEMPERATURE Burns 38 62 23 60 $$ = ORZ063-211400- Malheur County- 1232 AM MDT Sat Mar 21 2026 /1132 PM PDT Fri Mar 20 2026/ .TODAY...Partly cloudy after midnight, then becoming partly sunny this morning, then becoming mostly sunny this afternoon. Cooler with highs 62 to 72. Breezy. West winds 10 to 15 mph with gusts to 30 mph. .TONIGHT...Partly cloudy in the evening, then clearing. Much colder with lows 30 to 37. Breezy. North winds 10 to 20 mph. Gusts to 30 mph in the evening. .SUNDAY...Mostly sunny. Highs 57 to 64. North winds up to 10 mph. .SUNDAY NIGHT...Decreasing clouds. Lows 34 to 40. Northeast winds up to 10 mph. .MONDAY...Partly sunny. Highs 62 to 72. Light winds in the morning, becoming south 10 to 15 mph with gusts to 25 mph in the afternoon. .MONDAY NIGHT...Mostly cloudy. Lows 42 to 48. .TUESDAY...Decreasing clouds. A 30 percent chance of rain showers. Highs 66 to 76. Breezy. .TUESDAY NIGHT AND WEDNESDAY...Mostly cloudy. A 20 percent chance of rain showers. Lows 42 to 48. Highs 61 to 71. Breezy. .WEDNESDAY NIGHT...Decreasing clouds. Colder with lows 30 to 36. Breezy. .THURSDAY AND THURSDAY NIGHT...Partly cloudy. Cooler. Highs 52 to 60. Lows 28 to 35. .FRIDAY...Mostly sunny. Highs 58 to 65. $$ =