867
FPUS55 KBOI 311356
ZFPBOI

Zone Forecasts for Southwest Idaho/Southeast Oregon
National Weather Service Boise ID
755 AM MDT Sun Aug 31 2025

Forecast Updated.

Spot temperatures are for the rest of today, tonight, and Labor
Day.


IDZ011-312100-
West Central Mountains-
755 AM MDT Sun Aug 31 2025

.REST OF TODAY...Sunny. Patchy smoke. Highs 78 to 91.
.TONIGHT...Decreasing clouds. Patchy smoke. Lows 50 to 62.
.LABOR DAY...Mostly sunny. Patchy smoke. Highs 81 to 94.
.MONDAY NIGHT...Patchy smoke in the evening. Mostly clear. Lows
51 to 62.
.TUESDAY...Sunny. Highs 80 to 94.
.TUESDAY NIGHT...Decreasing clouds. Lows 53 to 63.
.WEDNESDAY AND WEDNESDAY NIGHT...Partly cloudy. Highs 78 to 92.
Lows 53 to 63.
.THURSDAY...Sunny. Highs 77 to 91.
.THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows 53 to 63. Highs
75 to 88.
.FRIDAY NIGHT...Mostly cloudy. Lows 52 to 62.
.SATURDAY...Partly cloudy with a 20 percent chance of showers.
Highs 70 to 84.

&&
               TEMPERATURE
McCall          87  49  89

$$
=

IDZ013-312100-
Boise Mountains-
755 AM MDT Sun Aug 31 2025

.REST OF TODAY...Sunny. Patchy smoke. Highs 78 to 93.
.TONIGHT...Mostly clear. Patchy smoke. Lows 47 to 62.
.LABOR DAY...Sunny. Patchy smoke. Highs 81 to 96.
.MONDAY NIGHT...Patchy smoke in the evening. Mostly clear. Lows
49 to 64.
.TUESDAY...Sunny. Highs 82 to 96.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Partly cloudy. Lows
48 to 63. Highs 79 to 93.
.THURSDAY AND THURSDAY NIGHT...Mostly clear. Highs 78 to 93. Lows
48 to 63.
.FRIDAY...Mostly sunny. Highs 77 to 91.
.FRIDAY NIGHT...Mostly cloudy. Lows 46 to 61.
.SATURDAY...Partly cloudy with a 20 percent chance of showers.
Highs 71 to 86.

&&
               TEMPERATURE
Idaho City      92  51  95

$$
=

IDZ028-312100-
Camas Prairie-
755 AM MDT Sun Aug 31 2025

.REST OF TODAY...Sunny. Patchy smoke. Highs 82 to 87. East winds
10 to 15 mph.
.TONIGHT...Mostly clear. Patchy smoke. Lows 47 to 54. East winds
10 to 15 mph.
.LABOR DAY...Sunny. Patchy smoke. Highs 85 to 90. East winds
10 to 15 mph.
.MONDAY NIGHT...Patchy smoke in the evening. Mostly clear. Lows
48 to 55. Northeast winds around 10 mph.
.TUESDAY...Sunny. Highs 85 to 90. Northeast winds around 10 mph
in the morning, shifting to southeast in the afternoon.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Partly cloudy. Lows
50 to 57. Highs 83 to 88.
.THURSDAY AND THURSDAY NIGHT...Mostly clear. Highs 83 to 88. Lows
50 to 56.
.FRIDAY...Mostly sunny. Highs 81 to 86.
.FRIDAY NIGHT...Mostly cloudy. Lows 49 to 54.
.SATURDAY...Partly cloudy with a 20 percent chance of showers.
Highs 76 to 81.

&&
               TEMPERATURE
Fairfield       84  47  87

$$
=

IDZ033-312100-
Upper Weiser River-
755 AM MDT Sun Aug 31 2025

.REST OF TODAY...Sunny. Patchy smoke. Highs 89 to 96. East winds
up to 10 mph this morning, becoming light this afternoon.
.TONIGHT...Mostly clear. Patchy smoke. Lows 60 to 66. East winds
up to 10 mph.
.LABOR DAY...Sunny. Patchy smoke. Highs 91 to 97. East winds up
to 10 mph in the morning, becoming light in the afternoon.
.MONDAY NIGHT...Patchy smoke in the evening. Mostly clear. Lows
61 to 67. Light winds.
.TUESDAY...Sunny. Highs 91 to 97. Northeast winds up to 10 mph in
the morning, becoming light in the afternoon.
.TUESDAY NIGHT THROUGH THURSDAY...Mostly clear. Lows 63 to 68.
Highs 88 to 95.
.THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows 63 to 68. Highs
86 to 92.
.FRIDAY NIGHT...Mostly cloudy. Lows 62 to 67.
.SATURDAY...Partly cloudy with a 20 percent chance of showers.
Highs 81 to 87.

&&
               TEMPERATURE
Council         96  63  97
Cambridge       94  60  96

$$
=

ORZ064-312100-
Oregon Lower Treasure Valley-
755 AM MDT Sun Aug 31 2025 /655 AM PDT Sun Aug 31 2025/

.REST OF TODAY...Sunny. Patchy smoke. Highs 92 to 97. East winds
up to 10 mph with gusts to 20 mph.
.TONIGHT...Partly cloudy. Patchy smoke. Lows 60 to 65. East winds
up to 10 mph. Gusts to 20 mph in the evening.
.LABOR DAY...Sunny. Patchy smoke. Highs 94 to 99. East winds up
to 10 mph.
.MONDAY NIGHT...Patchy smoke in the evening. Mostly clear. Lows
61 to 66. Light winds.
.TUESDAY...Sunny. Highs 93 to 98. Light winds.
.TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. Lows 63 to 69.
Highs 91 to 96.
.WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Lows 61 to 68.
Highs 92 to 97.
.THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows 62 to 69. Highs
89 to 94.
.FRIDAY NIGHT...Mostly cloudy. Lows 61 to 66.
.SATURDAY...Partly cloudy with a 20 percent chance of showers.
Highs 85 to 90.

&&
               TEMPERATURE
Ontario         95  60  98

$$
=

IDZ012-312100-
Lower Treasure Valley-
755 AM MDT Sun Aug 31 2025

.REST OF TODAY...Sunny. Patchy smoke. Highs 91 to 96. Southeast
winds 10 to 15 mph.
.TONIGHT...Mostly clear. Patchy smoke. Lows 60 to 65. East winds
10 to 15 mph.
.LABOR DAY...Sunny. Patchy smoke. Highs 94 to 99. Southeast winds
10 to 15 mph.
.MONDAY NIGHT...Patchy smoke in the evening. Mostly clear. Lows
60 to 65. East winds up to 10 mph.
.TUESDAY...Sunny. Highs 93 to 98. East winds up to 10 mph.
.TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. Lows 62 to 67.
Highs 91 to 96.
.WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Lows 61 to 66.
Highs 91 to 96.
.THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows 61 to 67. Highs
89 to 94.
.FRIDAY NIGHT...Mostly cloudy. Lows 60 to 65.
.SATURDAY...Partly cloudy with a 20 percent chance of showers.
Highs 83 to 88.

&&
               TEMPERATURE
Caldwell        95  60  98

$$
=

IDZ014-312100-
Upper Treasure Valley-
755 AM MDT Sun Aug 31 2025

.REST OF TODAY...Sunny. Patchy smoke. Highs 93 to 98. Southeast
winds 10 to 15 mph with gusts to 25 mph.
.TONIGHT...Mostly clear. Patchy smoke. Lows 56 to 66. East winds
10 to 15 mph.
.LABOR DAY...Sunny. Patchy smoke. Highs 96 to 101. Southeast
winds 10 to 15 mph with gusts to 25 mph.
.MONDAY NIGHT...Patchy smoke in the evening. Mostly clear. Lows
57 to 66. East winds around 10 mph.
.TUESDAY...Sunny. Highs 94 to 99. Southeast winds around 10 mph
with gusts to 20 mph.
.TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. Lows 62 to 67.
Highs 91 to 96.
.WEDNESDAY NIGHT THROUGH THURSDAY NIGHT...Mostly clear. Lows
60 to 66. Highs 91 to 96.
.FRIDAY...Mostly sunny. Highs 89 to 94.
.FRIDAY NIGHT...Mostly cloudy. Lows 59 to 64.
.SATURDAY...Partly cloudy. A slight chance of showers in the
afternoon. Chance of rain 20 percent. Highs 84 to 89.

&&
               TEMPERATURE
Boise           96  66  99
Mountain Home   96  59  99

$$
=

IDZ016-312100-
Western Magic Valley-
755 AM MDT Sun Aug 31 2025

.REST OF TODAY...Sunny. Patchy smoke. Highs 87 to 93. East winds
10 to 15 mph.
.TONIGHT...Mostly clear. Patchy smoke. Lows 53 to 60. East winds
10 to 15 mph.
.LABOR DAY...Sunny. Patchy smoke. Highs 90 to 95. East winds
10 to 15 mph with gusts to 25 mph.
.MONDAY NIGHT...Patchy smoke in the evening. Mostly clear. Lows
57 to 62. East winds around 10 mph with gusts to 20 mph.
.TUESDAY...Sunny. Highs 89 to 95. East winds around 10 mph with
gusts to 20 mph.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Partly cloudy. Lows
58 to 64. Highs 87 to 92.
.THURSDAY AND THURSDAY NIGHT...Mostly clear. Highs 86 to 91. Lows
58 to 63.
.FRIDAY...Mostly sunny. Highs 85 to 90.
.FRIDAY NIGHT...Increasing clouds. Lows 58 to 63.
.SATURDAY...Partly cloudy. A slight chance of showers in the
afternoon. Chance of rain 20 percent. Highs 79 to 84.

&&
               TEMPERATURE
Jerome          88  57  90
Twin Falls      89  56  91

$$
=

IDZ029-312100-
Owyhee Mountains-
755 AM MDT Sun Aug 31 2025

.REST OF TODAY...Sunny. Patchy smoke. Highs 86 to 92.
.TONIGHT...Decreasing clouds. Patchy smoke. Lows 58 to 67.
.LABOR DAY...Sunny. Patchy smoke. A slight chance of showers and
thunderstorms in the afternoon. Chance of rain 20 percent. Highs
88 to 94.
.MONDAY NIGHT...Partly cloudy in the evening, then clearing.
Patchy smoke in the evening. Lows 59 to 67.
.TUESDAY...Sunny. Highs 86 to 93.
.TUESDAY NIGHT...Partly cloudy with a slight chance of showers
and thunderstorms in the evening, then mostly cloudy after
midnight. Chance of rain 20 percent. Lows 60 to 67.
.WEDNESDAY AND WEDNESDAY NIGHT...Partly cloudy. Highs 83 to 90.
Lows 58 to 66.
.THURSDAY...Sunny. Highs 83 to 90.
.THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows 58 to 66. Highs
82 to 88.
.FRIDAY NIGHT...Mostly cloudy. A slight chance of showers and
thunderstorms in the evening. Chance of rain 20 percent. Lows
56 to 63.
.SATURDAY...Partly cloudy with a 20 percent chance of showers.
Highs 77 to 84.

$$
=

IDZ015-312100-
Southwest Highlands-
755 AM MDT Sun Aug 31 2025

.REST OF TODAY...Sunny. Patchy smoke. Highs 86 to 94.
.TONIGHT...Mostly clear. Patchy smoke. Lows 54 to 60.
.LABOR DAY...Sunny. Patchy smoke. Highs 88 to 96.
.MONDAY NIGHT...Partly cloudy in the evening, then clearing. Lows
57 to 62.
.TUESDAY...Sunny. Highs 87 to 94.
.TUESDAY NIGHT...Mostly cloudy. A slight chance of showers and
thunderstorms in the evening. Chance of rain 20 percent. Lows
59 to 64.
.WEDNESDAY...Partly cloudy. A slight chance of showers and
thunderstorms in the afternoon. Chance of rain 20 percent. Highs
83 to 90.
.WEDNESDAY NIGHT...Partly cloudy. Lows 56 to 62.
.THURSDAY...Sunny. Highs 84 to 91.
.THURSDAY NIGHT...Partly cloudy. Lows 57 to 63.
.FRIDAY...Partly cloudy. A slight chance of showers and
thunderstorms in the afternoon. Chance of rain 20 percent. Highs
82 to 89.
.FRIDAY NIGHT...Mostly cloudy. A slight chance of showers and
thunderstorms in the evening. Chance of rain 20 percent. Lows
55 to 60.
.SATURDAY...Partly cloudy. A chance of showers with a slight
chance of thunderstorms in the afternoon. Chance of rain
30 percent. Highs 79 to 84.

$$
=

IDZ030-312100-
Southern Twin  Falls County-
755 AM MDT Sun Aug 31 2025

.REST OF TODAY...Sunny. Patchy smoke. Highs 86 to 91.
.TONIGHT...Mostly clear. Patchy smoke. Lows 53 to 60.
.LABOR DAY...Sunny. Patchy smoke. Highs 88 to 93.
.MONDAY NIGHT...Partly cloudy in the evening, then clearing.
Patchy smoke in the evening. Lows 56 to 62.
.TUESDAY...Sunny. Highs 88 to 93.
.TUESDAY NIGHT...Decreasing clouds. Lows 58 to 63.
.WEDNESDAY...Partly cloudy. A slight chance of showers and
thunderstorms in the afternoon. Chance of rain 20 percent. Highs
85 to 90.
.WEDNESDAY NIGHT...Partly cloudy. Lows 58 to 63.
.THURSDAY...Sunny. Highs 84 to 89.
.THURSDAY NIGHT...Partly cloudy. Lows 58 to 63.
.FRIDAY...Partly cloudy. A slight chance of showers and
thunderstorms in the afternoon. Chance of rain 20 percent. Highs
84 to 89.
.FRIDAY NIGHT...Mostly cloudy. A slight chance of showers and
thunderstorms in the evening. Chance of rain 20 percent. Lows
57 to 62.
.SATURDAY...Partly cloudy. A chance of showers with a slight
chance of thunderstorms in the afternoon. Chance of rain
30 percent. Highs 78 to 83.

$$
=

ORZ062-312100-
Baker County-
655 AM PDT Sun Aug 31 2025

.REST OF TODAY...Mostly sunny. Patchy smoke. Highs 88 to 96.
Southeast winds 10 to 15 mph. Gusts to 25 mph this afternoon.
.TONIGHT...Partly cloudy. Patchy smoke. Lows 53 to 64. Southeast
winds 10 to 15 mph with gusts to 25 mph in the evening, becoming
light after midnight.
.LABOR DAY...Sunny. Patchy smoke. Highs 90 to 98. Southeast winds
up to 10 mph with gusts to 20 mph.
.MONDAY NIGHT...Patchy smoke in the evening. Mostly clear. Lows
53 to 64. Southeast winds up to 10 mph with gusts to 20 mph in
the evening, becoming light after midnight.
.TUESDAY...Sunny. Highs 90 to 98. Light winds.
.TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. Lows 54 to 66.
Highs 88 to 96.
.WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Lows 53 to 65.
Highs 88 to 96.
.THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows 53 to 65. Highs
85 to 93.
.FRIDAY NIGHT...Mostly cloudy. A slight chance of showers and
thunderstorms in the evening. Chance of rain 20 percent. Lows
52 to 64.
.SATURDAY...Partly cloudy. A chance of showers, mainly in the
afternoon. Chance of rain 30 percent. Highs 79 to 88.

&&
               TEMPERATURE
Baker City      92  53  95

$$
=

ORZ061-312100-
Harney County-
655 AM PDT Sun Aug 31 2025

.REST OF TODAY...Mostly sunny. Patchy smoke. Highs 84 to 94.
Southeast winds up to 10 mph. Gusts to 20 mph this afternoon.
.TONIGHT...Mostly cloudy with a slight chance of showers and
thunderstorms in the evening, then partly cloudy after midnight.
Patchy smoke. Chance of rain 20 percent. Lows 47 to 59. South
winds 10 to 15 mph.
.LABOR DAY...Sunny. Patchy smoke. Highs 84 to 94. Light winds in
the morning, becoming southeast up to 10 mph with gusts to 20 mph
in the afternoon.
.MONDAY NIGHT...Partly cloudy in the evening, then clearing.
Patchy smoke in the evening. Lows 51 to 60. East winds up to
10 mph. Gusts to 20 mph in the evening.
.TUESDAY...Partly cloudy. A slight chance of showers and
thunderstorms in the afternoon. Chance of rain 20 percent. Highs
84 to 94. Light winds in the morning, becoming east around 10 mph
in the afternoon.
.TUESDAY NIGHT...Mostly cloudy. A slight chance of showers and
thunderstorms in the evening. Chance of rain 20 percent. Lows
52 to 62.
.WEDNESDAY THROUGH THURSDAY NIGHT...Partly cloudy. Highs 81 to
91. Lows 50 to 61.
.FRIDAY...Partly sunny. Highs 78 to 88.
.FRIDAY NIGHT...Mostly cloudy. A slight chance of showers and
thunderstorms in the evening. Chance of rain 20 percent. Lows
48 to 58.
.SATURDAY...Partly cloudy. A slight chance of showers in the
afternoon. Chance of rain 20 percent. Highs 76 to 86.

&&
               TEMPERATURE
Burns           93  47  93

$$
=

ORZ063-312100-
Malheur County-
755 AM MDT Sun Aug 31 2025 /655 AM PDT Sun Aug 31 2025/

.REST OF TODAY...Sunny. Patchy smoke. Highs 89 to 95. East winds
up to 10 mph with gusts to 20 mph.
.TONIGHT...Partly cloudy. Patchy smoke. Lows 56 to 64. Southeast
winds 10 to 15 mph.
.LABOR DAY...Sunny. Patchy smoke. Highs 91 to 96. East winds up
to 10 mph.
.MONDAY NIGHT...Decreasing clouds. Patchy smoke in the evening.
Lows 57 to 65. East winds up to 10 mph.
.TUESDAY...Sunny. Highs 91 to 96. Light winds in the morning,
becoming northeast up to 10 mph in the afternoon.
.TUESDAY NIGHT...Partly cloudy with a slight chance of showers
and thunderstorms in the evening, then mostly cloudy after
midnight. Chance of rain 20 percent. Lows 57 to 67.
.WEDNESDAY AND WEDNESDAY NIGHT...Partly cloudy. Highs 88 to 94.
Lows 56 to 66.
.THURSDAY...Sunny. Highs 88 to 94.
.THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows 56 to 66. Highs
86 to 92.
.FRIDAY NIGHT...Mostly cloudy. A slight chance of showers and
thunderstorms in the evening. Chance of rain 20 percent. Lows
54 to 64.
.SATURDAY...Partly cloudy with a 20 percent chance of showers.
Highs 82 to 88.

$$
=