Zone Forecast Product
Issued by NWS Boise, ID
Issued by NWS Boise, ID
657
FPUS55 KBOI 080832
ZFPBOI
Zone Forecasts for Southwest Idaho/Southeast Oregon
National Weather Service Boise ID
230 AM MDT Tue Sep 8 2026
Spot temperatures are for today, tonight, and Wednesday.
IDZ011-081600-
West Central Mountains-
230 AM MDT Tue Sep 8 2026
.TODAY...Areas of fog this morning. Sunny. Highs 58 to 70.
.TONIGHT...Mostly clear. Areas of fog after midnight. Lows 36 to
45.
.WEDNESDAY...Areas of fog in the morning. Sunny. Highs 65 to 77.
.WEDNESDAY NIGHT...Clear. Lows 40 to 49.
.THURSDAY...Sunny. Highs 66 to 78.
.THURSDAY NIGHT...Mostly clear. Patchy fog after midnight. Lows
40 to 49.
.FRIDAY...Areas of fog in the morning. Sunny. Highs 58 to 70.
.FRIDAY NIGHT...Increasing clouds. Lows 37 to 46.
.SATURDAY...Partly cloudy. A chance of rain showers in the
afternoon. Chance of rain 30 percent. Highs 53 to 65.
.SATURDAY NIGHT...Mostly cloudy with a chance of rain showers. A
slight chance of thunderstorms in the evening, then a chance of
snow showers after midnight. Areas of fog after midnight. Chance
of precipitation 40 percent. Lows 33 to 43.
.SUNDAY...Partly sunny. Areas of fog in the morning. A chance of
rain and snow showers, mainly in the morning. Chance of
precipitation 40 percent. Highs 49 to 61.
.SUNDAY NIGHT...Mostly cloudy in the evening, then clearing.
Patchy fog in the evening. Areas of fog after midnight. Lows
31 to 40.
.MONDAY...Areas of fog in the morning. Sunny. Highs 54 to 65.
&&
TEMPERATURE
McCall 65 36 72
$$
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IDZ013-081600-
Boise Mountains-
230 AM MDT Tue Sep 8 2026
.TODAY...Areas of fog this morning. Sunny. Highs 61 to 75.
.TONIGHT...Mostly clear. Lows 31 to 46.
.WEDNESDAY...Sunny. Highs 68 to 82.
.WEDNESDAY NIGHT...Clear. Lows 35 to 50.
.THURSDAY...Sunny. Highs 70 to 85.
.THURSDAY NIGHT THROUGH FRIDAY NIGHT...Mostly clear. Lows 35 to
50. Highs 61 to 75.
.SATURDAY...Mostly sunny. Highs 58 to 72.
.SATURDAY NIGHT AND SUNDAY...Partly cloudy. A 30 percent chance
of rain showers. Areas of fog through the day. Lows 30 to 45.
Highs 50 to 65.
.SUNDAY NIGHT...Partly cloudy. Areas of fog after midnight. Lows
27 to 42.
.MONDAY...Areas of fog in the morning. Sunny. Highs 55 to 70.
&&
TEMPERATURE
Idaho City 73 38 80
$$
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IDZ028-081600-
Camas Prairie-
230 AM MDT Tue Sep 8 2026
.TODAY...Sunny. Highs 69 to 74. West winds 10 to 15 mph. Gusts to
25 mph this afternoon.
.TONIGHT...Mostly clear. Lows 35 to 40. West winds 10 to 15 mph
with gusts to 25 mph in the evening, becoming light after
midnight.
.WEDNESDAY...Sunny. Highs 75 to 80. Light winds in the morning,
becoming west 10 to 15 mph with gusts to 25 mph in the afternoon.
.WEDNESDAY NIGHT...Mostly clear. Lows 39 to 45. Northwest winds
10 to 15 mph. Gusts to 25 mph in the evening.
.THURSDAY...Sunny. Highs 78 to 83. Breezy. North winds around
10 mph in the morning, shifting to southwest 10 to 20 mph with
gusts to 30 mph in the afternoon.
.THURSDAY NIGHT...Partly cloudy in the evening, then clearing.
Lows 45 to 50. Breezy.
.FRIDAY AND FRIDAY NIGHT...Mostly clear. Highs 70 to 75. Lows
40 to 45. Breezy.
.SATURDAY...Mostly sunny. Highs 68 to 73. Breezy.
.SATURDAY NIGHT...Partly cloudy. A slight chance of rain showers
after midnight. Chance of rain 20 percent. Lows 34 to 39. Windy.
.SUNDAY...Mostly sunny. Cooler with highs 58 to 63.
.SUNDAY NIGHT...Partly cloudy. Patchy fog after midnight. Lows
32 to 37.
.MONDAY...Patchy fog in the morning. Sunny. Highs 64 to 69.
&&
TEMPERATURE
Fairfield 72 35 78
$$
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IDZ033-081600-
Upper Weiser River-
230 AM MDT Tue Sep 8 2026
.TODAY...Areas of fog this morning. Sunny. Highs 69 to 74. Light
winds.
.TONIGHT...Mostly clear. Lows 43 to 48. Light winds.
.WEDNESDAY...Sunny. Highs 74 to 79. Light winds.
.WEDNESDAY NIGHT...Clear. Lows 48 to 53. Light winds.
.THURSDAY...Sunny. Highs 77 to 82. Light winds in the morning,
becoming southwest up to 10 mph in the afternoon.
.THURSDAY NIGHT THROUGH FRIDAY NIGHT...Mostly clear. Lows 45 to
52. Highs 68 to 73.
.SATURDAY...Mostly sunny. Highs 64 to 70.
.SATURDAY NIGHT...Mostly cloudy with a 30 percent chance of rain
showers. Patchy fog after midnight. Lows 42 to 47.
.SUNDAY...Mostly sunny. Patchy fog in the morning. A chance of
rain showers, mainly in the morning. Chance of rain 30 percent.
Highs 60 to 66.
.SUNDAY NIGHT...Partly cloudy in the evening, then clearing.
Areas of fog after midnight. Lows 40 to 45.
.MONDAY...Areas of fog in the morning. Sunny. Highs 62 to 68.
&&
TEMPERATURE
Council 74 45 79
Cambridge 74 44 79
$$
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ORZ064-081600-
Oregon Lower Treasure Valley-
230 AM MDT Tue Sep 8 2026 /130 AM PDT Tue Sep 8 2026/
.TODAY...Sunny. Highs 72 to 77. Light winds.
.TONIGHT...Mostly clear. Lows 44 to 51. Light winds.
.WEDNESDAY...Sunny. Highs 77 to 82. Light winds.
.WEDNESDAY NIGHT...Clear. Lows 46 to 54. Light winds.
.THURSDAY...Sunny. Highs 83 to 88. Light winds in the morning,
becoming south up to 10 mph in the afternoon.
.THURSDAY NIGHT AND FRIDAY...Mostly clear. Not as warm. Lows
51 to 57. Highs 72 to 77.
.FRIDAY NIGHT...Increasing clouds. Lows 45 to 52.
.SATURDAY...Mostly sunny. Highs 68 to 73.
.SATURDAY NIGHT...Partly cloudy with a 20 percent chance of
showers. Lows 42 to 49.
.SUNDAY...Mostly sunny. Patchy fog in the morning. A slight
chance of showers in the afternoon. Chance of rain 20 percent.
Highs 64 to 69.
.SUNDAY NIGHT...Partly cloudy in the evening, then clearing.
Patchy fog in the evening. Areas of fog after midnight. Lows
40 to 47.
.MONDAY...Areas of fog in the morning. Sunny. Highs 65 to 70.
&&
TEMPERATURE
Ontario 76 44 80
$$
=
IDZ012-081600-
Lower Treasure Valley-
230 AM MDT Tue Sep 8 2026
.TODAY...Sunny. Highs 71 to 76. Northwest winds up to 10 mph.
.TONIGHT...Mostly clear. Lows 45 to 50. Northeast winds up to
10 mph.
.WEDNESDAY...Sunny. Highs 76 to 81. Light winds.
.WEDNESDAY NIGHT...Clear. Lows 48 to 53. Light winds.
.THURSDAY...Sunny. Highs 82 to 87. Light winds.
.THURSDAY NIGHT THROUGH FRIDAY NIGHT...Mostly clear. Not as warm.
Lows 47 to 56. Highs 71 to 76.
.SATURDAY...Mostly sunny. Highs 68 to 73.
.SATURDAY NIGHT...Partly cloudy with a 20 percent chance of rain
showers. Patchy fog after midnight. Lows 42 to 47. Breezy.
.SUNDAY...Mostly sunny. Areas of fog in the morning. A slight
chance of rain showers in the afternoon. Chance of rain
20 percent. Highs 63 to 68.
.SUNDAY NIGHT...Partly cloudy in the evening, then clearing.
Patchy fog in the evening. Areas of fog after midnight. Lows
41 to 46.
.MONDAY...Areas of fog in the morning. Sunny. Highs 65 to 70.
&&
TEMPERATURE
Caldwell 74 45 79
$$
=
IDZ014-081600-
Upper Treasure Valley-
230 AM MDT Tue Sep 8 2026
.TODAY...Sunny. Highs 72 to 77. Light winds this morning,
becoming northwest 10 to 15 mph with gusts to 25 mph this
afternoon.
.TONIGHT...Mostly clear. Lows 44 to 49. Northwest winds 10 to
15 mph with gusts to 25 mph in the evening, shifting to east
after midnight.
.WEDNESDAY...Sunny. Highs 78 to 83. Light winds in the morning,
becoming northwest up to 10 mph with gusts to 20 mph in the
afternoon.
.WEDNESDAY NIGHT...Mostly clear. Lows 48 to 53. Northwest winds
up to 10 mph with gusts to 20 mph in the evening, becoming light
after midnight.
.THURSDAY...Sunny. Highs 84 to 89. East winds up to 10 mph in the
morning, shifting to west around 10 mph in the afternoon. Gusts
to 20 mph.
.THURSDAY NIGHT...Partly cloudy in the evening, then clearing.
Lows 52 to 57.
.FRIDAY AND FRIDAY NIGHT...Mostly clear. Not as warm. Highs 72 to
78. Lows 47 to 52.
.SATURDAY...Mostly sunny. Highs 70 to 77. Breezy.
.SATURDAY NIGHT...Partly cloudy. A slight chance of rain showers
after midnight. Chance of rain 20 percent. Lows 42 to 47. Windy.
.SUNDAY...Mostly sunny. Highs 65 to 70. Breezy.
.SUNDAY NIGHT AND MONDAY...Mostly clear. Areas of fog through the
day. Lows 40 to 45. Highs 66 to 72.
&&
TEMPERATURE
Boise 74 48 80
Mountain Home 76 45 82
$$
=
IDZ016-081600-
Western Magic Valley-
230 AM MDT Tue Sep 8 2026
.TODAY...Patchy fog this morning. Sunny. Highs 71 to 76. Light
winds this morning, becoming northwest 10 to 15 mph with gusts to
25 mph this afternoon.
.TONIGHT...Mostly clear. Lows 42 to 47. West winds 10 to 15 mph
with gusts to 25 mph in the evening, shifting to south after
midnight.
.WEDNESDAY...Sunny. Highs 76 to 81. Light winds in the morning,
becoming west around 10 mph with gusts to 20 mph in the
afternoon.
.WEDNESDAY NIGHT...Mostly clear. Lows 47 to 52. Southwest winds
around 10 mph with gusts to 20 mph.
.THURSDAY...Sunny. Highs 83 to 88. Southeast winds up to 10 mph
in the morning, shifting to west with gusts to 25 mph in the
afternoon.
.THURSDAY NIGHT...Partly cloudy. Lows 53 to 58.
.FRIDAY AND FRIDAY NIGHT...Mostly clear. Not as warm. Highs 73 to
78. Lows 47 to 52. Breezy.
.SATURDAY...Mostly sunny. Highs 73 to 78. Breezy.
.SATURDAY NIGHT...Mostly clear in the evening, then partly cloudy
with a slight chance of rain showers after midnight. Chance of
rain 20 percent. Lows 41 to 46. Windy.
.SUNDAY THROUGH MONDAY...Mostly clear. Highs 62 to 71. Lows 39 to
44. Breezy.
&&
TEMPERATURE
Jerome 72 44 77
Twin Falls 72 44 78
$$
=
IDZ029-081600-
Owyhee Mountains-
230 AM MDT Tue Sep 8 2026
.TODAY...Sunny. Highs 64 to 73.
.TONIGHT...Mostly clear. Lows 43 to 50.
.WEDNESDAY...Sunny. Highs 70 to 80.
.WEDNESDAY NIGHT...Mostly clear. Lows 50 to 55.
.THURSDAY...Sunny. Highs 76 to 83.
.THURSDAY NIGHT...Partly cloudy in the evening, then clearing.
Lows 50 to 55.
.FRIDAY AND FRIDAY NIGHT...Mostly clear. Not as warm. Highs 66 to
73. Lows 46 to 51.
.SATURDAY...Mostly sunny. Highs 62 to 68. Breezy.
.SATURDAY NIGHT...Partly cloudy with a 20 percent chance of rain
showers. Lows 38 to 45. Breezy.
.SUNDAY...Mostly sunny. Highs 57 to 63. Breezy.
.SUNDAY NIGHT...Partly cloudy in the evening, then clearing.
Areas of fog after midnight. Lows 37 to 44.
.MONDAY...Patchy fog in the morning. Sunny. Highs 59 to 65.
$$
=
IDZ015-081600-
Southwest Highlands-
230 AM MDT Tue Sep 8 2026
.TODAY...Sunny. Highs 70 to 75.
.TONIGHT...Mostly clear. Lows 42 to 47.
.WEDNESDAY...Sunny. Highs 77 to 82.
.WEDNESDAY NIGHT...Mostly clear. Lows 48 to 53.
.THURSDAY...Mostly sunny. Highs 83 to 88. Breezy.
.THURSDAY NIGHT...Decreasing clouds. Lows 52 to 57. Breezy.
.FRIDAY AND FRIDAY NIGHT...Mostly clear. Not as warm. Highs 73 to
78. Lows 47 to 52.
.SATURDAY...Mostly sunny. Highs 69 to 74. Windy.
.SATURDAY NIGHT...Mostly clear in the evening, then partly cloudy
with a slight chance of rain showers after midnight. Chance of
rain 20 percent. Lows 39 to 44. Windy.
.SUNDAY...Sunny, cooler with highs 61 to 66. Breezy.
.SUNDAY NIGHT...Increasing clouds. Lows 37 to 42. Breezy.
.MONDAY...Patchy fog in the morning. Sunny. Highs 64 to 69.
$$
=
IDZ030-081600-
Southern Twin Falls County-
230 AM MDT Tue Sep 8 2026
.TODAY...Sunny. Highs 70 to 75.
.TONIGHT...Mostly clear. Lows 43 to 48.
.WEDNESDAY...Sunny. Highs 76 to 81.
.WEDNESDAY NIGHT...Mostly clear. Lows 49 to 54.
.THURSDAY...Mostly sunny. Highs 83 to 88. Breezy.
.THURSDAY NIGHT...Decreasing clouds. Lows 54 to 59. Breezy.
.FRIDAY THROUGH SATURDAY...Mostly clear. Not as warm. Highs 73 to
78. Lows 48 to 53. Windy.
.SATURDAY NIGHT...Mostly clear in the evening, then partly cloudy
with a slight chance of rain showers after midnight. Chance of
rain 20 percent. Lows 41 to 46. Windy.
.SUNDAY THROUGH MONDAY...Mostly clear. Highs 61 to 71. Lows 38 to
43. Breezy.
$$
=
ORZ062-081600-
Baker County-
130 AM PDT Tue Sep 8 2026
.TODAY...Areas of fog this morning. Sunny. Highs 68 to 75. Light
winds.
.TONIGHT...Mostly clear. Patchy fog after midnight. Lows 37 to
49. Light winds.
.WEDNESDAY...Areas of fog in the morning. Sunny. Highs 75 to 81.
Southeast winds up to 10 mph. Gusts to 20 mph in the afternoon.
.WEDNESDAY NIGHT...Clear. Lows 39 to 53. Southeast winds up to
10 mph. Gusts to 20 mph in the evening.
.THURSDAY...Sunny. Highs 77 to 84. South winds up to 10 mph.
Gusts to 20 mph in the afternoon.
.THURSDAY NIGHT AND FRIDAY...Mostly clear. Areas of fog through
the day. Not as warm. Lows 39 to 50. Highs 67 to 74.
.FRIDAY NIGHT...Increasing clouds. Lows 36 to 49.
.SATURDAY...Partly cloudy. A chance of rain showers in the
afternoon. Chance of rain 30 percent. Highs 61 to 69.
.SATURDAY NIGHT...Mostly cloudy with a 30 percent chance of rain
showers. Patchy fog after midnight. Lows 32 to 45.
.SUNDAY...Mostly sunny. Areas of fog in the morning. A chance of
rain showers, mainly in the morning. Chance of rain 30 percent.
Highs 58 to 66.
.SUNDAY NIGHT...Partly cloudy in the evening, then clearing.
Patchy fog in the evening. Areas of fog after midnight. Lows
31 to 44.
.MONDAY...Areas of fog in the morning. Sunny. Highs 61 to 68.
&&
TEMPERATURE
Baker City 71 37 79
$$
=
ORZ061-081600-
Harney County-
130 AM PDT Tue Sep 8 2026
.TODAY...Sunny, warmer with highs 66 to 75. Light winds.
.TONIGHT...Mostly clear. Lows 38 to 47. Light winds.
.WEDNESDAY...Sunny. Highs 73 to 82. Light winds.
.WEDNESDAY NIGHT...Mostly clear. Lows 41 to 53. Light winds.
.THURSDAY...Sunny. Highs 74 to 84. Breezy. Light winds in the
morning, becoming west 10 to 20 mph with gusts to 30 mph in the
afternoon.
.THURSDAY NIGHT...Mostly clear. Lows 40 to 50.
.FRIDAY...Patchy fog in the morning. Sunny. Highs 67 to 76.
.FRIDAY NIGHT...Increasing clouds. Lows 37 to 47.
.SATURDAY...Mostly sunny. Cooler with highs 58 to 67. Breezy.
.SATURDAY NIGHT...Partly cloudy with a 20 percent chance of rain
showers. Lows 32 to 40. Breezy.
.SUNDAY...Patchy fog in the morning. Mostly sunny. Highs 56 to
64.
.SUNDAY NIGHT AND MONDAY...Mostly clear. Lows 32 to 41. Highs
59 to 66.
&&
TEMPERATURE
Burns 72 38 80
$$
=
ORZ063-081600-
Malheur County-
230 AM MDT Tue Sep 8 2026 /130 AM PDT Tue Sep 8 2026/
.TODAY...Patchy fog this morning. Sunny. Highs 69 to 76.
Northeast winds up to 10 mph.
.TONIGHT...Mostly clear. Lows 41 to 50. East winds up to 10 mph.
.WEDNESDAY...Sunny. Highs 76 to 83. East winds up to 10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows 46 to 54. East winds up to
10 mph in the evening, shifting to south after midnight.
.THURSDAY...Sunny. Highs 81 to 88. Southwest winds 10 to 15 mph.
Gusts to 30 mph in the afternoon.
.THURSDAY NIGHT...Decreasing clouds. Lows 47 to 55.
.FRIDAY AND FRIDAY NIGHT...Mostly clear. Highs 71 to 79. Lows
44 to 51.
.SATURDAY...Mostly sunny. Highs 64 to 72. Breezy.
.SATURDAY NIGHT...Partly cloudy with a 20 percent chance of rain
showers. Lows 37 to 46. Windy.
.SUNDAY...Mostly sunny. Highs 61 to 67.
.SUNDAY NIGHT...Partly cloudy in the evening, then clearing.
Areas of fog after midnight. Lows 36 to 45.
.MONDAY...Patchy fog in the morning. Sunny. Highs 62 to 69.
$$
=