Zone Forecast Product
Issued by NWS Boise, ID
Issued by NWS Boise, ID
868
FPUS55 KBOI 301837
ZFPBOI
Zone Forecasts for Southwest Idaho/Southeast Oregon
National Weather Service Boise ID
1236 PM MDT Wed Sep 30 2026
Spot temperatures are for tonight, Thursday, Thursday night, and
Friday.
IDZ011-010200-
West Central Mountains-
1236 PM MDT Wed Sep 30 2026
.TONIGHT...Mostly clear. Patchy smoke. Areas of fog after
midnight. Lows 39 to 49.
.THURSDAY...Sunny. Areas of fog in the morning. Patchy smoke.
Highs 63 to 76.
.THURSDAY NIGHT...Partly cloudy in the evening, then clearing.
Areas of smoke in the evening. Areas of fog with patchy smoke
after midnight. Lows 40 to 51.
.FRIDAY...Areas of fog with patchy smoke in the morning. Sunny.
Highs 66 to 79.
.FRIDAY NIGHT...Partly cloudy. Lows 43 to 53.
.SATURDAY...Mostly sunny. Highs 69 to 82.
.SATURDAY NIGHT AND SUNDAY...Mostly clear. Lows 44 to 54. Highs
72 to 84.
.SUNDAY NIGHT THROUGH MONDAY NIGHT...Partly cloudy. Lows 44 to
56. Highs 70 to 83.
.TUESDAY THROUGH WEDNESDAY...Mostly clear. Highs 67 to 80. Lows
42 to 53.
&&
TEMPERATURE
McCall 40 71 40 74
$$
=
IDZ013-010200-
Boise Mountains-
1236 PM MDT Wed Sep 30 2026
.TONIGHT...Mostly clear. Patchy smoke after midnight. Lows 35 to
50.
.THURSDAY...Sunny. Patchy fog in the morning. Patchy smoke. Highs
67 to 81.
.THURSDAY NIGHT...Partly cloudy in the evening, then clearing.
Patchy smoke in the evening. Lows 36 to 51.
.FRIDAY...Sunny. Highs 70 to 85.
.FRIDAY NIGHT...Increasing clouds. Lows 40 to 55.
.SATURDAY...Mostly sunny. Highs 72 to 86.
.SATURDAY NIGHT AND SUNDAY...Mostly clear. Lows 40 to 55. Highs
75 to 89.
.SUNDAY NIGHT THROUGH MONDAY NIGHT...Partly cloudy. Lows 42 to
57. Highs 72 to 87.
.TUESDAY THROUGH WEDNESDAY...Mostly clear. Highs 70 to 85. Lows
38 to 53.
&&
TEMPERATURE
Idaho City 41 80 41 84
$$
=
IDZ028-010200-
Camas Prairie-
1236 PM MDT Wed Sep 30 2026
.TONIGHT...Mostly clear. Lows 37 to 42. Breezy. West winds 10 to
20 mph. Gusts to 30 mph this evening.
.THURSDAY...Sunny. Patchy smoke in the afternoon. Highs 74 to 79.
Light winds in the morning, becoming west 10 to 15 mph with gusts
to 25 mph in the afternoon.
.THURSDAY NIGHT...Partly cloudy in the evening, then clearing.
Lows 39 to 45. Northwest winds up to 10 mph. Gusts to 25 mph in
the evening.
.FRIDAY...Sunny. Highs 77 to 82. Light winds.
.FRIDAY NIGHT...Partly cloudy. Lows 43 to 48. Northwest winds up
to 10 mph.
.SATURDAY AND SATURDAY NIGHT...Partly cloudy. Highs 77 to 82.
Lows 44 to 49.
.SUNDAY...Sunny. Highs 80 to 85.
.SUNDAY NIGHT THROUGH MONDAY NIGHT...Partly cloudy. Lows 44 to
49. Highs 78 to 83.
.TUESDAY THROUGH WEDNESDAY...Mostly clear. Highs 75 to 81. Lows
41 to 46.
&&
TEMPERATURE
Fairfield 37 77 39 80
$$
=
IDZ033-010200-
Upper Weiser River-
1236 PM MDT Wed Sep 30 2026
.TONIGHT...Mostly clear. Lows 47 to 52. North winds up to 10 mph.
.THURSDAY...Areas of fog in the morning. Sunny. Highs 73 to 80.
North winds up to 10 mph in the morning, becoming light in the
afternoon.
.THURSDAY NIGHT...Partly cloudy in the evening, then clearing.
Patchy smoke. Lows 49 to 54. Light winds.
.FRIDAY...Mostly sunny. Highs 76 to 83. Light winds.
.FRIDAY NIGHT...Partly cloudy. Lows 52 to 57. Light winds.
.SATURDAY...Mostly sunny. Highs 79 to 86.
.SATURDAY NIGHT AND SUNDAY...Mostly clear. Lows 53 to 58. Highs
80 to 87.
.SUNDAY NIGHT THROUGH MONDAY NIGHT...Partly cloudy. Lows 53 to
61. Highs 80 to 86.
.TUESDAY THROUGH WEDNESDAY...Mostly clear. Highs 77 to 83. Lows
51 to 56.
&&
TEMPERATURE
Council 48 79 50 82
Cambridge 47 80 50 83
$$
=
ORZ064-010200-
Oregon Lower Treasure Valley-
1236 PM MDT Wed Sep 30 2026 /1136 AM PDT Wed Sep 30 2026/
.TONIGHT...Mostly clear. Lows 47 to 54. Northwest winds up to
10 mph.
.THURSDAY...Areas of fog in the morning. Sunny. Highs 78 to 83.
North winds up to 10 mph.
.THURSDAY NIGHT...Partly cloudy in the evening, then clearing.
Patchy smoke after midnight. Lows 47 to 55. Light winds.
.FRIDAY...Mostly sunny. Highs 78 to 83. Light winds.
.FRIDAY NIGHT...Increasing clouds. Lows 50 to 57. Light winds.
.SATURDAY...Mostly sunny. Highs 82 to 87.
.SATURDAY NIGHT AND SUNDAY...Mostly clear. Lows 50 to 57. Highs
82 to 87.
.SUNDAY NIGHT THROUGH MONDAY NIGHT...Partly cloudy. Lows 52 to
59. Highs 84 to 89.
.TUESDAY THROUGH WEDNESDAY...Mostly clear. Highs 80 to 86. Lows
48 to 56.
&&
TEMPERATURE
Ontario 47 80 47 81
$$
=
IDZ012-010200-
Lower Treasure Valley-
1236 PM MDT Wed Sep 30 2026
.TONIGHT...Mostly clear. Areas of fog after midnight. Lows 48 to
53. Northwest winds up to 10 mph.
.THURSDAY...Areas of fog in the morning. Sunny. Highs 77 to 82.
Northwest winds up to 10 mph.
.THURSDAY NIGHT...Partly cloudy in the evening, then clearing.
Patchy smoke. Lows 49 to 54. Light winds.
.FRIDAY...Mostly sunny. Highs 79 to 84. Light winds.
.FRIDAY NIGHT...Increasing clouds. Lows 52 to 57. Light winds.
.SATURDAY...Mostly sunny. Highs 82 to 87.
.SATURDAY NIGHT AND SUNDAY...Mostly clear. Lows 52 to 57. Highs
83 to 88.
.SUNDAY NIGHT THROUGH MONDAY NIGHT...Partly cloudy. Lows 54 to
59. Highs 83 to 88.
.TUESDAY THROUGH WEDNESDAY...Mostly clear. Highs 80 to 85. Lows
50 to 55.
&&
TEMPERATURE
Caldwell 49 80 49 82
$$
=
IDZ014-010200-
Upper Treasure Valley-
1236 PM MDT Wed Sep 30 2026
.TONIGHT...Clear. Patchy fog after midnight. Lows 46 to 52.
Northwest winds 10 to 15 mph. Gusts to 30 mph this evening.
.THURSDAY...Areas of fog in the morning. Sunny. Highs 78 to 83.
Northwest winds up to 10 mph with gusts to 20 mph.
.THURSDAY NIGHT...Mostly clear. Lows 47 to 53. Northwest winds up
to 10 mph with gusts to 20 mph in the evening, becoming light
after midnight.
.FRIDAY...Sunny. Highs 82 to 87. Southeast winds up to 10 mph.
.FRIDAY NIGHT...Increasing clouds. Lows 51 to 57. Light winds.
.SATURDAY AND SATURDAY NIGHT...Partly cloudy. Highs 82 to 87.
Lows 50 to 57.
.SUNDAY...Sunny. Highs 85 to 90.
.SUNDAY NIGHT THROUGH MONDAY NIGHT...Partly cloudy. Lows 52 to
60. Highs 83 to 88.
.TUESDAY THROUGH WEDNESDAY...Mostly clear. Highs 81 to 87. Lows
49 to 55.
&&
TEMPERATURE
Boise 52 80 53 84
Mountain Home 47 81 47 85
$$
=
IDZ016-010200-
Western Magic Valley-
1236 PM MDT Wed Sep 30 2026
.TONIGHT...Mostly clear. Lows 46 to 51. Breezy. Southwest winds
10 to 20 mph. Gusts to 30 mph this evening.
.THURSDAY...Sunny. Patchy smoke in the afternoon. Highs 76 to 81.
Southwest winds around 10 mph with gusts to 20 mph.
.THURSDAY NIGHT...Mostly clear. Patchy smoke. Lows 46 to 51. West
winds around 10 mph in the evening, becoming light after
midnight. Gusts to 20 mph.
.FRIDAY...Sunny. Highs 81 to 86. East winds up to 10 mph in the
morning, becoming light in the afternoon.
.FRIDAY NIGHT...Increasing clouds. Lows 51 to 56. Light winds.
.SATURDAY AND SATURDAY NIGHT...Partly cloudy. Highs 79 to 84.
Lows 51 to 56.
.SUNDAY...Sunny. Highs 83 to 88.
.SUNDAY NIGHT THROUGH MONDAY NIGHT...Partly cloudy. Lows 52 to
59. Highs 81 to 86.
.TUESDAY THROUGH WEDNESDAY...Mostly clear. Highs 78 to 84. Lows
48 to 53.
&&
TEMPERATURE
Jerome 48 77 48 82
Twin Falls 49 77 48 83
$$
=
IDZ029-010200-
Owyhee Mountains-
1236 PM MDT Wed Sep 30 2026
.TONIGHT...Mostly clear. Lows 45 to 54.
.THURSDAY...Sunny. Highs 70 to 80.
.THURSDAY NIGHT...Mostly clear. Lows 47 to 54.
.FRIDAY...Mostly sunny. Highs 74 to 84.
.FRIDAY NIGHT...Increasing clouds. Lows 51 to 58.
.SATURDAY AND SATURDAY NIGHT...Partly cloudy. Highs 74 to 84.
Lows 50 to 58.
.SUNDAY...Sunny. Highs 77 to 87.
.SUNDAY NIGHT...Increasing clouds. Lows 53 to 60.
.MONDAY AND MONDAY NIGHT...Partly cloudy. Highs 77 to 84. Lows
51 to 60.
.TUESDAY THROUGH WEDNESDAY...Mostly clear. Highs 74 to 82. Lows
48 to 57.
$$
=
IDZ015-010200-
Southwest Highlands-
1236 PM MDT Wed Sep 30 2026
.TONIGHT...Mostly clear. Lows 42 to 49.
.THURSDAY...Sunny. Highs 76 to 81.
.THURSDAY NIGHT...Mostly clear. Lows 45 to 51.
.FRIDAY...Mostly sunny. Highs 81 to 86.
.FRIDAY NIGHT...Increasing clouds. Lows 50 to 56.
.SATURDAY...Partly sunny. Highs 79 to 84.
.SATURDAY NIGHT AND SUNDAY...Partly cloudy. Lows 51 to 56. Highs
82 to 87.
.SUNDAY NIGHT...Mostly cloudy. Lows 52 to 58.
.MONDAY AND MONDAY NIGHT...Partly cloudy. Highs 80 to 85. Lows
49 to 56.
.TUESDAY THROUGH WEDNESDAY...Mostly clear. Highs 78 to 83. Lows
46 to 53.
$$
=
IDZ030-010200-
Southern Twin Falls County-
1236 PM MDT Wed Sep 30 2026
.TONIGHT...Mostly clear. Lows 45 to 51.
.THURSDAY...Sunny. Highs 75 to 80.
.THURSDAY NIGHT...Mostly clear. Lows 47 to 52.
.FRIDAY...Sunny. Highs 81 to 86.
.FRIDAY NIGHT...Increasing clouds. Lows 53 to 58.
.SATURDAY...Partly sunny. Highs 79 to 84.
.SATURDAY NIGHT...Partly cloudy. Lows 52 to 57.
.SUNDAY...Sunny. Highs 83 to 88.
.SUNDAY NIGHT...Increasing clouds. Lows 56 to 61.
.MONDAY AND MONDAY NIGHT...Partly cloudy. Highs 80 to 85. Lows
54 to 59.
.TUESDAY THROUGH WEDNESDAY...Mostly clear. Highs 78 to 83. Lows
49 to 54.
$$
=
ORZ062-010200-
Baker County-
1136 AM PDT Wed Sep 30 2026
.TONIGHT...Increasing clouds. Patchy fog and smoke this evening.
Areas of fog after midnight. Lows 37 to 51. Northwest winds up to
10 mph with gusts to 20 mph.
.THURSDAY...Sunny. Areas of fog in the morning. Patchy smoke in
the afternoon. Highs 72 to 78. Light winds.
.THURSDAY NIGHT...Mostly cloudy in the evening, then clearing.
Patchy fog after midnight. Lows 40 to 53. Light winds.
.FRIDAY...Areas of fog in the morning. Mostly sunny. Highs 75 to
82. Light winds.
.FRIDAY NIGHT...Partly cloudy. Lows 42 to 55. Light winds.
.SATURDAY...Mostly sunny. Highs 77 to 84.
.SATURDAY NIGHT AND SUNDAY...Mostly clear. Lows 43 to 56. Highs
80 to 86.
.SUNDAY NIGHT THROUGH MONDAY NIGHT...Partly cloudy. Lows 44 to
58. Highs 79 to 86.
.TUESDAY THROUGH WEDNESDAY...Mostly clear. Highs 75 to 82. Lows
41 to 54.
&&
TEMPERATURE
Baker City 37 74 40 80
$$
=
ORZ061-010200-
Harney County-
1136 AM PDT Wed Sep 30 2026
.TONIGHT...Mostly clear. Areas of smoke after midnight. Lows
37 to 47. Northwest winds up to 10 mph.
.THURSDAY...Areas of fog with patchy smoke in the morning. Sunny.
Highs 72 to 81. Light winds.
.THURSDAY NIGHT...Mostly clear. Lows 39 to 51. Light winds.
.FRIDAY...Mostly sunny. Highs 75 to 84. Light winds.
.FRIDAY NIGHT...Mostly cloudy. Lows 41 to 53. North winds up to
10 mph.
.SATURDAY AND SATURDAY NIGHT...Partly cloudy. Highs 76 to 85.
Lows 42 to 54.
.SUNDAY...Sunny. Highs 78 to 86.
.SUNDAY NIGHT THROUGH MONDAY NIGHT...Partly cloudy. Lows 41 to
55. Highs 77 to 85.
.TUESDAY THROUGH WEDNESDAY...Mostly clear. Highs 74 to 83. Lows
39 to 50.
&&
TEMPERATURE
Burns 37 78 39 82
$$
=
ORZ063-010200-
Malheur County-
1236 PM MDT Wed Sep 30 2026 /1136 AM PDT Wed Sep 30 2026/
.TONIGHT...Mostly clear. Patchy fog after midnight. Lows 43 to
52. North winds up to 10 mph.
.THURSDAY...Areas of fog in the morning. Sunny. Highs 75 to 82.
Light winds.
.THURSDAY NIGHT...Mostly clear. Lows 44 to 54. Light winds.
.FRIDAY...Mostly sunny. Highs 77 to 85. Light winds.
.FRIDAY NIGHT...Mostly cloudy. Lows 48 to 57. North winds up to
10 mph.
.SATURDAY AND SATURDAY NIGHT...Partly cloudy. Highs 79 to 86.
Lows 48 to 57.
.SUNDAY...Sunny. Highs 81 to 87.
.SUNDAY NIGHT THROUGH MONDAY NIGHT...Partly cloudy. Lows 49 to
58. Highs 82 to 87.
.TUESDAY THROUGH WEDNESDAY...Mostly clear. Highs 78 to 85. Lows
46 to 55.
$$
=