Zone Forecast Product
Issued by NWS Boise, ID

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FPUS55 KBOI 020908
ZFPBOI

Zone Forecasts for Southwest Idaho/Southeast Oregon
National Weather Service Boise ID
307 AM MDT Tue Sep 2 2025

Spot temperatures are for today, tonight, and Wednesday.


IDZ011-021700-
West Central Mountains-
307 AM MDT Tue Sep 2 2025

.TODAY...Sunny. Highs 82 to 95.
.TONIGHT...Mostly clear. Areas of smoke after midnight. Lows
54 to 65.
.WEDNESDAY...Sunny. Areas of smoke. Highs 81 to 94.
.WEDNESDAY NIGHT...Decreasing clouds. Lows 54 to 64.
.THURSDAY...Mostly sunny. Highs 79 to 93.
.THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows 52 to 62. Highs
75 to 89.
.FRIDAY NIGHT...A slight chance of thunderstorms in the evening.
Mostly cloudy with a slight chance of showers. Chance of rain
20 percent. Lows 51 to 61.
.SATURDAY AND SATURDAY NIGHT...Mostly cloudy with a chance of
rain showers with a slight chance of thunderstorms. Chance of
rain 40 percent. Highs 67 to 80. Lows 48 to 58.
.SUNDAY THROUGH MONDAY...Mostly cloudy with a chance of rain
showers with a slight chance of thunderstorms. Chance of rain
30 percent. Highs 65 to 79. Lows 47 to 57.

&&
               TEMPERATURE
McCall          90  54  89

$$
=

IDZ013-021700-
Boise Mountains-
307 AM MDT Tue Sep 2 2025

.TODAY...Sunny. Highs 83 to 98.
.TONIGHT...Partly cloudy. Lows 50 to 65.
.WEDNESDAY...Mostly sunny. Areas of smoke in the afternoon. Highs
82 to 96.
.WEDNESDAY NIGHT...Partly cloudy. Lows 50 to 65.
.THURSDAY...Mostly sunny. Highs 80 to 94.
.THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows 48 to 63. Highs
77 to 90.
.FRIDAY NIGHT...A slight chance of thunderstorms in the evening.
Mostly cloudy with a slight chance of rain showers. Chance of
rain 20 percent. Lows 46 to 61.
.SATURDAY...Decreasing clouds. A chance of rain showers. A slight
chance of thunderstorms in the afternoon. Chance of rain
40 percent. Highs 69 to 83.
.SATURDAY NIGHT...Mostly cloudy with a chance of rain showers
with a slight chance of thunderstorms in the evening, then partly
cloudy with a slight chance of rain showers after midnight.
Chance of rain 30 percent. Lows 43 to 58.
.SUNDAY...Partly cloudy. A slight chance of rain showers in the
morning, then a chance of rain showers with a slight chance of
thunderstorms in the afternoon. Chance of rain 30 percent. Highs
69 to 83.
.SUNDAY NIGHT...A slight chance of thunderstorms in the evening.
Partly cloudy with a slight chance of rain showers. Chance of
rain 20 percent. Lows 41 to 56.
.MONDAY...Partly cloudy. A slight chance of rain showers in the
morning, then a chance of rain showers with a slight chance of
thunderstorms in the afternoon. Chance of rain 30 percent. Highs
67 to 81.

&&
               TEMPERATURE
Idaho City      97  54  95

$$
=

IDZ028-021700-
Camas Prairie-
307 AM MDT Tue Sep 2 2025

.TODAY...Sunny. Highs 86 to 91. East winds around 10 mph.
.TONIGHT...Partly cloudy. Lows 52 to 58. Northeast winds around
10 mph.
.WEDNESDAY...Mostly sunny. Highs 85 to 90. Northeast winds around
10 mph in the morning, becoming light in the afternoon.
.WEDNESDAY NIGHT...Partly cloudy. Lows 51 to 57. Northwest winds
around 10 mph.
.THURSDAY...Mostly sunny. Highs 84 to 89. Light winds in the
morning, becoming south around 10 mph in the afternoon.
.THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows 50 to 56. Highs
80 to 85.
.FRIDAY NIGHT...Mostly cloudy. A slight chance of showers after
midnight. Chance of rain 20 percent. Lows 50 to 55.
.SATURDAY...Decreasing clouds. A chance of showers. A slight
chance of thunderstorms in the afternoon. Chance of rain
40 percent. Highs 73 to 78.
.SATURDAY NIGHT...Mostly cloudy with a slight chance of showers
and thunderstorms in the evening, then partly cloudy after
midnight. Chance of rain 20 percent. Lows 44 to 51.
.SUNDAY...Partly cloudy. A slight chance of showers and
thunderstorms in the afternoon. Chance of rain 20 percent. Highs
74 to 79.
.SUNDAY NIGHT...Partly cloudy. Lows 44 to 50.
.MONDAY...Partly cloudy. A slight chance of showers and
thunderstorms in the afternoon. Chance of rain 20 percent. Highs
73 to 78.

&&
               TEMPERATURE
Fairfield       89  52  88

$$
=

IDZ033-021700-
Upper Weiser River-
307 AM MDT Tue Sep 2 2025

.TODAY...Sunny. Highs 92 to 99. East winds up to 10 mph this
morning, becoming light this afternoon.
.TONIGHT...Increasing clouds. Areas of smoke after midnight. Lows
64 to 70. North winds up to 10 mph. Gusts to 20 mph after
midnight.
.WEDNESDAY...Mostly sunny. Areas of smoke. Highs 91 to 97. East
winds up to 10 mph with gusts to 20 mph in the morning, becoming
light in the afternoon.
.WEDNESDAY NIGHT...Partly cloudy. Lows 64 to 69. Light winds in
the evening, becoming northeast up to 10 mph after midnight.
.THURSDAY...Mostly sunny. Highs 90 to 97. Northeast winds up to
10 mph in the morning, becoming light in the afternoon.
.THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows 63 to 68. Highs
85 to 92.
.FRIDAY NIGHT...Mostly cloudy. A slight chance of showers after
midnight. Chance of rain 20 percent. Lows 62 to 67.
.SATURDAY AND SATURDAY NIGHT...Mostly cloudy. A chance of showers
with a slight chance of thunderstorms. Chance of rain 30 percent.
Highs 78 to 83. Lows 58 to 63.
.SUNDAY AND SUNDAY NIGHT...Partly cloudy. A chance of showers
with a slight chance of thunderstorms. Chance of rain 30 percent.
Highs 78 to 84. Lows 57 to 62.
.MONDAY...Partly cloudy. A slight chance of showers in the
morning, then a chance of showers with a slight chance of
thunderstorms in the afternoon. Chance of rain 30 percent. Highs
75 to 81.

&&
               TEMPERATURE
Council         99  67  97
Cambridge       97  65  96

$$
=

ORZ064-021700-
Oregon Lower Treasure Valley-
307 AM MDT Tue Sep 2 2025 /207 AM PDT Tue Sep 2 2025/

.TODAY...Areas of smoke this morning. Sunny. Highs 95 to 100.
Light winds.
.TONIGHT...Increasing clouds. Areas of smoke after midnight. Lows
62 to 70. Light winds.
.WEDNESDAY...Mostly sunny. Highs 93 to 98. Light winds.
.WEDNESDAY NIGHT...Increasing clouds. Lows 62 to 69. Light winds.
.THURSDAY...Mostly sunny. Highs 93 to 98. Light winds.
.THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows 61 to 68. Highs
88 to 93.
.FRIDAY NIGHT THROUGH SATURDAY NIGHT...Mostly cloudy with a
chance of showers with a slight chance of thunderstorms. Chance
of rain 30 percent. Lows 58 to 67. Highs 82 to 87.
.SUNDAY AND SUNDAY NIGHT...Partly cloudy. A slight chance of
showers and thunderstorms. Chance of rain 20 percent. Highs 82 to
87. Lows 57 to 63.
.MONDAY...Partly cloudy with a slight chance of showers. A slight
chance of thunderstorms in the afternoon. Chance of rain
20 percent. Highs 78 to 83.

&&
               TEMPERATURE
Ontario         96  62  95

$$
=

IDZ012-021700-
Lower Treasure Valley-
307 AM MDT Tue Sep 2 2025

.TODAY...Areas of smoke this morning. Sunny. Highs 94 to 99.
Light winds.
.TONIGHT...Increasing clouds. Lows 63 to 68. North winds up to
10 mph.
.WEDNESDAY...Mostly sunny. Highs 93 to 98. Light winds.
.WEDNESDAY NIGHT...Partly cloudy. Lows 62 to 67. Northwest winds
up to 10 mph.
.THURSDAY...Mostly sunny. Highs 92 to 97. Northwest winds up to
10 mph.
.THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows 61 to 66. Highs
87 to 92.
.FRIDAY NIGHT...A slight chance of thunderstorms in the evening.
Mostly cloudy with a slight chance of showers. Chance of rain
20 percent. Lows 61 to 66.
.SATURDAY AND SATURDAY NIGHT...Mostly cloudy. A chance of showers
with a slight chance of thunderstorms. Chance of rain 30 percent.
Highs 81 to 86. Lows 57 to 62.
.SUNDAY THROUGH MONDAY...Partly cloudy with a slight chance of
showers and thunderstorms. Chance of rain 20 percent. Highs 78 to
86. Lows 56 to 61.

&&
               TEMPERATURE
Caldwell        97  63  96

$$
=

IDZ014-021700-
Upper Treasure Valley-
307 AM MDT Tue Sep 2 2025

.TODAY...Sunny. Highs 96 to 101. East winds up to 10 mph with
gusts to 20 mph.
.TONIGHT...Partly cloudy. Lows 62 to 69. North winds around
10 mph in the evening, shifting to east up to 10 mph after
midnight.
.WEDNESDAY...Mostly sunny. Highs 94 to 99. East winds up to
10 mph in the morning, shifting to southwest around 10 mph in the
afternoon.
.WEDNESDAY NIGHT...Partly cloudy. Lows 62 to 68. Northwest winds
up to 10 mph.
.THURSDAY...Mostly sunny. Highs 92 to 97. Light winds in the
morning, becoming northwest around 10 mph with gusts to 20 mph in
the afternoon.
.THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows 60 to 66. Highs
88 to 93.
.FRIDAY NIGHT AND SATURDAY...Mostly cloudy. A chance of showers
with a slight chance of thunderstorms. Chance of rain 30 percent.
Lows 60 to 65. Highs 82 to 87.
.SATURDAY NIGHT THROUGH MONDAY...Partly cloudy with a slight
chance of showers and thunderstorms. Chance of rain 20 percent.
Lows 55 to 62. Highs 80 to 87.

&&
               TEMPERATURE
Boise           98  69  96
Mountain Home  100  63  97

$$
=

IDZ016-021700-
Western Magic Valley-
307 AM MDT Tue Sep 2 2025

.TODAY...Sunny. Highs 91 to 96. East winds around 10 mph with
gusts to 20 mph.
.TONIGHT...Partly cloudy. Lows 59 to 64. East winds around
10 mph.
.WEDNESDAY...Mostly sunny. Highs 90 to 95. East winds around
10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows 59 to 64. West winds
around 10 mph.
.THURSDAY...Mostly sunny. Highs 88 to 93. Southeast winds around
10 mph in the morning, shifting to northwest in the afternoon.
Gusts to 20 mph.
.THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows 58 to 63. Highs
85 to 90.
.FRIDAY NIGHT...A slight chance of thunderstorms in the evening.
Mostly cloudy with a slight chance of showers. Chance of rain
20 percent. Lows 58 to 63.
.SATURDAY...Decreasing clouds. A chance of showers. A slight
chance of thunderstorms in the afternoon. Chance of rain
40 percent. Highs 77 to 82.
.SATURDAY NIGHT...Mostly cloudy with a slight chance of showers
and thunderstorms in the evening, then partly cloudy after
midnight. Chance of rain 20 percent. Lows 54 to 59.
.SUNDAY...Partly cloudy. A slight chance of showers and
thunderstorms in the afternoon. Chance of rain 20 percent. Highs
78 to 83.
.SUNDAY NIGHT...Partly cloudy. Lows 53 to 58.
.MONDAY...Partly cloudy. A slight chance of showers and
thunderstorms in the afternoon. Chance of rain 20 percent. Highs
78 to 83.

&&
               TEMPERATURE
Jerome          92  62  91
Twin Falls      92  62  91

$$
=

IDZ029-021700-
Owyhee Mountains-
307 AM MDT Tue Sep 2 2025

.TODAY...Partly cloudy. A slight chance of showers and
thunderstorms this afternoon. Chance of rain 20 percent. Highs
88 to 94.
.TONIGHT...Increasing clouds. Lows 61 to 70.
.WEDNESDAY...Mostly sunny. Highs 86 to 91.
.WEDNESDAY NIGHT...Decreasing clouds. Lows 60 to 69.
.THURSDAY...Mostly sunny. Highs 85 to 91.
.THURSDAY NIGHT...Decreasing clouds. Lows 59 to 66.
.FRIDAY...Partly cloudy. A slight chance of showers and
thunderstorms in the afternoon. Chance of rain 20 percent. Highs
80 to 85.
.FRIDAY NIGHT...A slight chance of thunderstorms in the evening.
Mostly cloudy with a chance of showers. Chance of rain
30 percent. Lows 56 to 64.
.SATURDAY...Decreasing clouds. A chance of showers. A slight
chance of thunderstorms in the afternoon. Chance of rain
40 percent. Highs 75 to 81.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers with a
slight chance of thunderstorms in the evening, then partly cloudy
after midnight. Chance of rain 30 percent. Lows 52 to 61.
.SUNDAY THROUGH MONDAY...Partly cloudy with a slight chance of
showers and thunderstorms. Chance of rain 20 percent. Highs 72 to
80. Lows 51 to 59.

$$
=

IDZ015-021700-
Southwest Highlands-
307 AM MDT Tue Sep 2 2025

.TODAY...Partly cloudy. A slight chance of showers and
thunderstorms this afternoon. Chance of rain 20 percent. Highs
88 to 96.
.TONIGHT...Mostly cloudy. Lows 60 to 65.
.WEDNESDAY...Partly sunny. Highs 86 to 93.
.WEDNESDAY NIGHT...Decreasing clouds. Lows 59 to 64.
.THURSDAY...Mostly sunny. Highs 85 to 92.
.THURSDAY NIGHT...Mostly cloudy. Lows 57 to 62.
.FRIDAY...Partly cloudy. A chance of showers with a slight chance
of thunderstorms in the afternoon. Chance of rain 30 percent.
Highs 80 to 88.
.FRIDAY NIGHT...A slight chance of thunderstorms in the evening.
Mostly cloudy with a chance of showers. Chance of rain
40 percent. Lows 55 to 60.
.SATURDAY...Mostly cloudy with a chance of showers in the
morning, then showers likely with a slight chance of
thunderstorms in the afternoon. Chance of rain 60 percent. Highs
75 to 82.
.SATURDAY NIGHT...Mostly cloudy. A chance of showers with a
slight chance of thunderstorms in the evening. Chance of rain
30 percent. Lows 51 to 57.
.SUNDAY...Partly cloudy. A chance of showers with a slight chance
of thunderstorms in the afternoon. Chance of rain 30 percent.
Highs 76 to 82.
.SUNDAY NIGHT AND MONDAY...Partly cloudy. A slight chance of
showers and thunderstorms. Chance of rain 20 percent. Lows 50 to
56. Highs 74 to 80.

$$
=

IDZ030-021700-
Southern Twin  Falls County-
307 AM MDT Tue Sep 2 2025

.TODAY...Partly cloudy. A slight chance of showers and
thunderstorms this afternoon. Chance of rain 20 percent. Highs
90 to 95.
.TONIGHT...Partly cloudy. Lows 59 to 64.
.WEDNESDAY...Mostly sunny. Highs 88 to 93.
.WEDNESDAY NIGHT...Partly cloudy. Lows 59 to 64.
.THURSDAY...Mostly sunny. Highs 86 to 91.
.THURSDAY NIGHT...Partly cloudy. Lows 58 to 63.
.FRIDAY AND FRIDAY NIGHT...Mostly cloudy. A chance of showers
with a slight chance of thunderstorms. Chance of rain 30 percent.
Highs 82 to 87. Lows 56 to 61.
.SATURDAY...A chance of showers in the morning, then showers
likely with a slight chance of thunderstorms in the afternoon.
Chance of rain 60 percent. Highs 76 to 81.
.SATURDAY NIGHT...Mostly cloudy. A chance of showers with a
slight chance of thunderstorms in the evening. Chance of rain
30 percent. Lows 52 to 57.
.SUNDAY...Partly cloudy. A chance of showers with a slight chance
of thunderstorms in the afternoon. Chance of rain 30 percent.
Highs 76 to 81.
.SUNDAY NIGHT AND MONDAY...Partly cloudy. A slight chance of
showers and thunderstorms. Chance of rain 20 percent. Lows 52 to
57. Highs 75 to 80.

$$
=

ORZ062-021700-
Baker County-
207 AM PDT Tue Sep 2 2025

.TODAY...Sunny. Highs 91 to 99. Light winds.
.TONIGHT...Increasing clouds. Areas of smoke in the evening. Lows
54 to 67. North winds up to 10 mph.
.WEDNESDAY...Mostly sunny. Areas of smoke. Highs 91 to 98.
Northwest winds up to 10 mph in the morning, becoming light in
the afternoon.
.WEDNESDAY NIGHT...Partly cloudy. Lows 54 to 67. Light winds.
.THURSDAY...Mostly sunny. Highs 89 to 97. Light winds.
.THURSDAY NIGHT...Decreasing clouds. Lows 54 to 66.
.FRIDAY...Partly cloudy. A slight chance of showers and
thunderstorms in the afternoon. Chance of rain 20 percent. Highs
85 to 92.
.FRIDAY NIGHT...A slight chance of thunderstorms in the evening.
Mostly cloudy with a chance of showers. Chance of rain
30 percent. Lows 53 to 64.
.SATURDAY...Increasing clouds. A chance of showers. A slight
chance of thunderstorms in the afternoon. Chance of rain
40 percent. Highs 77 to 85.
.SATURDAY NIGHT THROUGH MONDAY...Mostly cloudy with a chance of
rain showers with a slight chance of thunderstorms. Chance of
rain 30 percent. Lows 48 to 60. Highs 74 to 84.

&&
               TEMPERATURE
Baker City      95  54  94

$$
=

ORZ061-021700-
Harney County-
207 AM PDT Tue Sep 2 2025

.TODAY...Partly cloudy. A slight chance of showers and
thunderstorms this afternoon. Chance of rain 20 percent. Highs
85 to 95. Light winds this morning, becoming east up to 10 mph
with gusts to 20 mph this afternoon.
.TONIGHT...Partly cloudy in the evening, then mostly cloudy with
a slight chance of showers after midnight. Areas of smoke. Chance
of rain 20 percent. Lows 54 to 64. East winds up to 10 mph in the
evening, shifting to west after midnight. Gusts to 20 mph.
.WEDNESDAY...Mostly sunny. Areas of smoke in the morning. A
slight chance of showers and thunderstorms in the afternoon.
Chance of rain 20 percent. Highs 82 to 92. West winds up to
10 mph.
.WEDNESDAY NIGHT...Partly cloudy. Lows 51 to 62. Light winds.
.THURSDAY...Mostly sunny. Highs 82 to 92. Light winds.
.THURSDAY NIGHT...Mostly cloudy. A slight chance of showers and
thunderstorms in the evening. Chance of rain 20 percent. Lows
51 to 61.
.FRIDAY THROUGH SATURDAY NIGHT...Mostly cloudy with a chance of
showers with a slight chance of thunderstorms. Chance of rain
30 percent. Highs 75 to 85. Lows 46 to 58.
.SUNDAY...Partly cloudy. A slight chance of showers and
thunderstorms in the afternoon. Chance of rain 20 percent. Highs
71 to 81.
.SUNDAY NIGHT...A slight chance of thunderstorms in the evening.
Mostly cloudy with a slight chance of showers. Chance of rain
20 percent. Lows 44 to 53.
.MONDAY...Partly cloudy. A slight chance of showers in the
morning, then a chance of showers with a slight chance of
thunderstorms in the afternoon. Chance of rain 30 percent. Highs
68 to 78.

&&
               TEMPERATURE
Burns           95  54  91

$$
=

ORZ063-021700-
Malheur County-
307 AM MDT Tue Sep 2 2025 /207 AM PDT Tue Sep 2 2025/

.TODAY...Partly cloudy. A slight chance of showers and
thunderstorms this afternoon. Chance of rain 20 percent. Highs
92 to 98. Light winds this morning, becoming northeast up to
10 mph this afternoon.
.TONIGHT...Increasing clouds. Areas of smoke. Lows 59 to 68.
Northeast winds up to 10 mph in the evening, shifting to
southwest after midnight.
.WEDNESDAY...Areas of smoke in the morning. Mostly sunny. Highs
90 to 96. Light winds in the morning, becoming north around
10 mph in the afternoon.
.WEDNESDAY NIGHT...Partly cloudy. Lows 58 to 67. North winds up
to 10 mph in the evening, shifting to west after midnight.
.THURSDAY...Mostly sunny. Highs 89 to 95. West winds up to 10 mph
in the morning, becoming light in the afternoon.
.THURSDAY NIGHT...Mostly cloudy. Lows 57 to 66.
.FRIDAY THROUGH SATURDAY NIGHT...Mostly cloudy with a chance of
showers with a slight chance of thunderstorms. Chance of rain
30 percent. Highs 80 to 90. Lows 51 to 61.
.SUNDAY...Partly cloudy. A slight chance of showers and
thunderstorms in the afternoon. Chance of rain 20 percent. Highs
78 to 85.
.SUNDAY NIGHT...Mostly cloudy. A chance of showers with a slight
chance of thunderstorms in the evening. Chance of rain
30 percent. Lows 49 to 59.
.MONDAY...Partly cloudy with a slight chance of showers. A slight
chance of thunderstorms in the afternoon. Chance of rain
20 percent. Highs 75 to 82.

$$
=