Zone Forecast Product
Issued by NWS Boise, ID

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153
FPUS55 KBOI 201352
ZFPBOI

Zone Forecasts for Southwest Idaho/Southeast Oregon
National Weather Service Boise ID
751 AM MDT Wed Aug 20 2025

Forecast Updated.

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


IDZ011-202100-
West Central Mountains-
751 AM MDT Wed Aug 20 2025

.REST OF TODAY...Sunny. Areas of smoke this morning. Patchy smoke
this afternoon. Highs 76 to 89.
.TONIGHT...Mostly clear. Patchy smoke. Lows 47 to 57.
.THURSDAY...Sunny. Patchy smoke. Highs 75 to 89.
.THURSDAY NIGHT...Mostly clear. Lows 48 to 58.
.FRIDAY...Sunny. Highs 80 to 94.
.FRIDAY NIGHT AND SATURDAY...Mostly clear. Lows 52 to 62. Highs
82 to 96.
.SATURDAY NIGHT...Increasing clouds. Lows 56 to 66.
.SUNDAY...Partly sunny. Highs 77 to 92.
.SUNDAY NIGHT...Mostly cloudy. A slight chance of showers in the
evening. Chance of rain 20 percent. Lows 54 to 64.
.MONDAY...Partly cloudy. A slight chance of showers and
thunderstorms in the afternoon. Chance of rain 20 percent. Highs
77 to 91.
.MONDAY NIGHT...Partly cloudy. A slight chance of showers in the
evening. Chance of rain 20 percent. Lows 53 to 63.
.TUESDAY...Partly cloudy. A slight chance of showers and
thunderstorms in the afternoon. Chance of rain 20 percent. Highs
74 to 88.

&&
               TEMPERATURE
McCall          83  47  83

$$
=

IDZ013-202100-
Boise Mountains-
751 AM MDT Wed Aug 20 2025

.REST OF TODAY...Sunny. Patchy smoke. Highs 79 to 93.
.TONIGHT...Mostly clear. Lows 43 to 58.
.THURSDAY...Patchy smoke in the morning. Sunny. Highs 78 to 93.
.THURSDAY NIGHT...Mostly clear. Lows 43 to 58.
.FRIDAY...Sunny. Highs 82 to 97.
.FRIDAY NIGHT AND SATURDAY...Mostly clear. Lows 47 to 62. Highs
85 to 100.
.SATURDAY NIGHT...Increasing clouds. Lows 51 to 66.
.SUNDAY AND SUNDAY NIGHT...Mostly cloudy. A 20 percent chance of
showers. Highs 78 to 93. Lows 47 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
78 to 93.
.MONDAY NIGHT...Mostly cloudy with a chance of showers in the
evening, then partly cloudy after midnight. Chance of rain
30 percent. Lows 47 to 62.
.TUESDAY...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 90.

&&
               TEMPERATURE
Idaho City      92  48  91

$$
=

IDZ028-202100-
Camas Prairie-
751 AM MDT Wed Aug 20 2025

.REST OF TODAY...Patchy smoke this morning. Sunny. Highs 87 to
92. Light winds this morning, becoming southwest 10 to 15 mph
with gusts to 25 mph this afternoon.
.TONIGHT...Mostly clear. Lows 48 to 54. Northwest winds 10 to
15 mph. Gusts to 25 mph in the evening.
.THURSDAY...Sunny. Highs 85 to 90. West winds around 10 mph.
Gusts to 20 mph in the afternoon.
.THURSDAY NIGHT...Increasing clouds. Lows 47 to 53. Northwest
winds 10 to 15 mph. Gusts to 25 mph in the evening.
.FRIDAY...Sunny. Highs 88 to 93. Light winds in the morning,
becoming southwest around 10 mph with gusts to 20 mph in the
afternoon.
.FRIDAY NIGHT AND SATURDAY...Mostly clear. Lows 51 to 57. Highs
90 to 95.
.SATURDAY NIGHT...Increasing clouds. Lows 54 to 61.
.SUNDAY AND SUNDAY NIGHT...Mostly cloudy. A 20 percent chance of
showers. Highs 83 to 88. Lows 50 to 57.
.MONDAY...Partly cloudy. A chance of showers with a slight chance
of thunderstorms in the afternoon. Chance of rain 30 percent.
Highs 81 to 86.
.MONDAY NIGHT...Mostly cloudy with a slight chance of showers in
the evening, then partly cloudy after midnight. Chance of rain
20 percent. Lows 48 to 55.
.TUESDAY...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
77 to 82.

&&
               TEMPERATURE
Fairfield       89  48  88

$$
=

IDZ033-202100-
Upper Weiser River-
751 AM MDT Wed Aug 20 2025

.REST OF TODAY...Sunny. Patchy smoke. Highs 87 to 93. Northwest
winds 10 to 15 mph with gusts to 25 mph.
.TONIGHT...Mostly clear. Lows 58 to 63. North winds 10 to 15 mph
with gusts to 25 mph.
.THURSDAY...Sunny. Highs 87 to 93. North winds 10 to 15 mph in
the morning, becoming light in the afternoon.
.THURSDAY NIGHT...Mostly clear. Lows 58 to 63. North winds around
10 mph.
.FRIDAY...Sunny. Highs 92 to 97. North winds up to 10 mph.
.FRIDAY NIGHT AND SATURDAY...Mostly clear. Lows 62 to 67. Highs
94 to 100.
.SATURDAY NIGHT...Increasing clouds. Lows 67 to 72.
.SUNDAY AND SUNDAY NIGHT...Mostly cloudy. Highs 88 to 95. Lows
64 to 69.
.MONDAY THROUGH TUESDAY...Partly cloudy with a 20 percent chance
of showers. Highs 86 to 95. Lows 64 to 69.

&&
               TEMPERATURE
Council         93  60  93
Cambridge       92  58  92

$$
=

IDZ012-ORZ064-202100-
Lower Treasure Valley-Oregon Lower Treasure Valley-
751 AM MDT Wed Aug 20 2025 /651 AM PDT Wed Aug 20 2025/

.REST OF TODAY...Patchy smoke this morning. Sunny. Highs 90 to
95. Northwest winds 10 to 15 mph with gusts to 25 mph.
.TONIGHT...Mostly clear. Lows 59 to 64. Northwest winds 10 to
15 mph with gusts to 25 mph.
.THURSDAY...Sunny. Highs 90 to 95. Northwest winds up to 10 mph
with gusts to 20 mph.
.THURSDAY NIGHT...Mostly clear. Lows 57 to 64. Northwest winds up
to 10 mph.
.FRIDAY...Sunny. Highs 94 to 99. Northwest winds up to 10 mph.
.FRIDAY NIGHT AND SATURDAY...Mostly clear. Lows 60 to 67. Highs
96 to 101.
.SATURDAY NIGHT AND SUNDAY...Mostly cloudy. Lows 67 to 73. Highs
91 to 96.
.SUNDAY NIGHT THROUGH TUESDAY...Partly cloudy with a 20 percent
chance of showers. Lows 63 to 69. Highs 89 to 96.

&&
               TEMPERATURE
Caldwell        93  59  93
Ontario         94  61  94

$$
=

IDZ014-202100-
Upper Treasure Valley-
751 AM MDT Wed Aug 20 2025

.REST OF TODAY...Sunny. Highs 91 to 96. Breezy. Northwest winds
10 to 20 mph with gusts to 30 mph.
.TONIGHT...Mostly clear. Lows 57 to 62. Breezy. Northwest winds
10 to 20 mph with gusts to 30 mph.
.THURSDAY...Sunny. Highs 91 to 96. Northwest winds 10 to 15 mph.
.THURSDAY NIGHT...Increasing clouds. Lows 56 to 61. Northwest
winds 10 to 15 mph. Gusts to 25 mph in the evening.
.FRIDAY...Sunny. Highs 94 to 99. Northwest winds up to 10 mph.
.FRIDAY NIGHT AND SATURDAY...Mostly clear. Lows 59 to 65. Highs
97 to 102.
.SATURDAY NIGHT...Increasing clouds. Lows 66 to 71.
.SUNDAY AND SUNDAY NIGHT...Mostly cloudy. A 20 percent chance of
showers. Highs 91 to 96. Lows 61 to 67.
.MONDAY...Partly cloudy. A chance of showers in the afternoon.
Chance of rain 30 percent. Highs 90 to 95.
.MONDAY NIGHT...Partly cloudy. A slight chance of showers in the
evening. Chance of rain 20 percent. Lows 61 to 66.
.TUESDAY...Partly cloudy. A chance of showers in the afternoon.
Chance of rain 30 percent. Highs 87 to 92.

&&
               TEMPERATURE
Boise           93  60  93
Mountain Home   96  59  95

$$
=

IDZ016-202100-
Western Magic Valley-
751 AM MDT Wed Aug 20 2025

.REST OF TODAY...Patchy smoke this morning. Partly cloudy with a
slight chance of showers. A slight chance of thunderstorms this
afternoon. Chance of rain 20 percent. Highs 88 to 93. West winds
10 to 15 mph with gusts to 25 mph.
.TONIGHT...Mostly clear. Lows 57 to 62. West winds 10 to 15 mph
with gusts to 25 mph.
.THURSDAY...Sunny. Highs 88 to 93. West winds around 10 mph with
gusts to 20 mph.
.THURSDAY NIGHT...Partly cloudy. Lows 56 to 61. West winds 10 to
15 mph.
.FRIDAY...Sunny. Highs 91 to 96. Light winds.
.FRIDAY NIGHT AND SATURDAY...Mostly clear. Lows 59 to 64. Highs
93 to 98.
.SATURDAY NIGHT...Mostly cloudy. Lows 64 to 69.
.SUNDAY AND SUNDAY NIGHT...Mostly cloudy. A 30 percent chance of
showers. Highs 86 to 91. Lows 60 to 65.
.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
84 to 89.
.MONDAY NIGHT...Mostly cloudy with a chance of showers in the
evening, then partly cloudy with a slight chance of showers after
midnight. Chance of rain 30 percent. Lows 59 to 64.
.TUESDAY...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 40 percent. Highs
81 to 86.

&&
               TEMPERATURE
Jerome          90  59  88
Twin Falls      90  61  89

$$
=

IDZ029-202100-
Owyhee Mountains-
751 AM MDT Wed Aug 20 2025

.REST OF TODAY...Sunny. Highs 83 to 88.
.TONIGHT...Mostly clear. Lows 51 to 61.
.THURSDAY...Sunny. Highs 82 to 90.
.THURSDAY NIGHT...Increasing clouds. Lows 53 to 62.
.FRIDAY...Sunny. Highs 86 to 95.
.FRIDAY NIGHT...Partly cloudy. Lows 58 to 66.
.SATURDAY...Sunny. Highs 89 to 96.
.SATURDAY NIGHT...Mostly cloudy. A slight chance of showers in
the evening. Chance of rain 20 percent. Lows 63 to 71.
.SUNDAY...Mostly cloudy with a slight chance of showers in the
morning, then partly cloudy with a chance of showers with a
slight chance of thunderstorms in the afternoon. Chance of rain
30 percent. Highs 83 to 89.
.SUNDAY NIGHT...Mostly cloudy. A chance of showers in the
evening. Chance of rain 30 percent. Lows 57 to 65.
.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 40 percent. Highs
82 to 88.
.MONDAY NIGHT...Mostly cloudy with a chance of showers in the
evening, then partly cloudy after midnight. Chance of rain
30 percent. Lows 57 to 65.
.TUESDAY...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 40 percent. Highs
81 to 86.

$$
=

IDZ015-202100-
Southwest Highlands-
751 AM MDT Wed Aug 20 2025

.REST OF TODAY...Sunny. Patchy smoke this afternoon. Highs 86 to
91. Breezy.
.TONIGHT...Mostly clear. Lows 54 to 59. Breezy.
.THURSDAY...Sunny. Highs 85 to 91.
.THURSDAY NIGHT...Partly cloudy. Lows 56 to 61.
.FRIDAY...Sunny. Highs 90 to 95.
.FRIDAY NIGHT...Partly cloudy. Lows 59 to 64.
.SATURDAY...Partly cloudy. A slight chance of showers in the
afternoon. Chance of rain 20 percent. Highs 92 to 97.
.SATURDAY NIGHT...Mostly cloudy with a 20 percent chance of
showers. Lows 62 to 67.
.SUNDAY...Decreasing clouds. A chance of showers. A slight chance
of thunderstorms in the afternoon. Chance of rain 40 percent.
Highs 83 to 89.
.SUNDAY NIGHT...Mostly cloudy. A chance of showers, mainly in the
evening. Chance of rain 30 percent. Lows 56 to 62.
.MONDAY...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 82 to 88.
.MONDAY NIGHT...Mostly cloudy. A chance of showers with a slight
chance of thunderstorms in the evening, then a slight chance of
showers after midnight. Chance of rain 30 percent. Lows 56 to 61.
.TUESDAY...A slight chance of showers in the morning, then
showers likely with a slight chance of thunderstorms in the
afternoon. Chance of rain 60 percent. Highs 79 to 86.

$$
=

IDZ030-202100-
Southern Twin  Falls County-
751 AM MDT Wed Aug 20 2025

.REST OF TODAY...Mostly sunny. Patchy smoke this morning. A
slight chance of showers this morning, then a chance of showers
with a slight chance of thunderstorms this afternoon. Chance of
rain 30 percent. Highs 87 to 92.
.TONIGHT...Mostly clear. Lows 56 to 61.
.THURSDAY...Sunny. Highs 85 to 90.
.THURSDAY NIGHT...Decreasing clouds. Lows 57 to 62.
.FRIDAY...Mostly sunny. Highs 89 to 94.
.FRIDAY NIGHT...Partly cloudy. Lows 59 to 64.
.SATURDAY...Partly cloudy. A chance of showers with a slight
chance of thunderstorms in the afternoon. Chance of rain
30 percent. Highs 91 to 96.
.SATURDAY NIGHT...Mostly cloudy. A chance of showers, mainly in
the evening. Chance of rain 30 percent. Lows 63 to 68.
.SUNDAY...A chance of showers in the morning, then showers likely
with a chance of thunderstorms in the afternoon. Chance of rain
60 percent. Highs 84 to 89.
.SUNDAY NIGHT...Mostly cloudy. A chance of showers, mainly in the
evening. Chance of rain 40 percent. Lows 58 to 63.
.MONDAY...Partly 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 82 to 87.
.MONDAY NIGHT...Mostly cloudy with a chance of showers with a
slight chance of thunderstorms in the evening, then partly cloudy
with a slight chance of showers after midnight. Chance of rain
40 percent. Lows 57 to 62.
.TUESDAY...Partly cloudy with a chance of showers in the morning,
then showers likely with a slight chance of thunderstorms in the
afternoon. Chance of rain 70 percent. Highs 79 to 84.

$$
=

ORZ062-202100-
Baker County-
651 AM PDT Wed Aug 20 2025

.REST OF TODAY...Sunny. Highs 81 to 91. Northwest winds 10 to
15 mph. Gusts to 30 mph this afternoon.
.TONIGHT...Mostly clear. Lows 45 to 58. Breezy. Northwest winds
10 to 20 mph. Gusts to 30 mph in the evening.
.THURSDAY...Sunny. Highs 83 to 92. Northwest winds up to 10 mph.
.THURSDAY NIGHT...Clear. Lows 46 to 59. North winds up to 10 mph
with gusts to 20 mph.
.FRIDAY...Sunny. Highs 88 to 97. North winds up to 10 mph.
.FRIDAY NIGHT...Mostly clear. Lows 51 to 65.
.SATURDAY...Mostly sunny. Highs 91 to 100.
.SATURDAY NIGHT...Mostly cloudy. Lows 56 to 69.
.SUNDAY...Partly cloudy. A slight chance of showers and
thunderstorms in the afternoon. Chance of rain 20 percent. Highs
87 to 96.
.SUNDAY NIGHT...Decreasing clouds. Lows 54 to 66.
.MONDAY...Partly cloudy. A slight chance of showers in the
afternoon. Chance of rain 20 percent. Highs 87 to 96.
.MONDAY NIGHT...Partly cloudy. Lows 54 to 66.
.TUESDAY...Partly cloudy. A slight chance of showers in the
afternoon. Chance of rain 20 percent. Highs 84 to 93.

&&
               TEMPERATURE
Baker City      84  45  86

$$
=

ORZ061-202100-
Harney County-
651 AM PDT Wed Aug 20 2025

.REST OF TODAY...Sunny. Highs 78 to 88. Northwest winds up to
10 mph. Gusts to 20 mph this afternoon.
.TONIGHT...Mostly clear. Lows 46 to 55. North winds up to 10 mph
with gusts to 20 mph.
.THURSDAY...Sunny. Highs 81 to 91. Northeast winds up to 10 mph.
.THURSDAY NIGHT...Mostly clear. Lows 49 to 58. Northeast winds up
to 10 mph.
.FRIDAY...Sunny. Highs 87 to 97. East winds up to 10 mph. Gusts
to 20 mph in the afternoon.
.FRIDAY NIGHT AND SATURDAY...Partly cloudy. Lows 53 to 63. Highs
87 to 97.
.SATURDAY NIGHT...Mostly cloudy. A slight chance of showers in
the evening. Chance of rain 20 percent. Lows 56 to 65.
.SUNDAY...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 40 percent. Highs
81 to 91.
.SUNDAY NIGHT...Mostly cloudy with a chance of showers in the
evening, then partly cloudy after midnight. Chance of rain
30 percent. Lows 53 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 40 percent. Highs
80 to 90.
.MONDAY NIGHT...Mostly cloudy with a chance of showers in the
evening, then partly cloudy after midnight. Chance of rain
30 percent. Lows 51 to 61.
.TUESDAY...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 40 percent. Highs
77 to 87.

&&
               TEMPERATURE
Burns           86  46  89

$$
=

ORZ063-202100-
Malheur County-
751 AM MDT Wed Aug 20 2025 /651 AM PDT Wed Aug 20 2025/

.REST OF TODAY...Sunny. Highs 86 to 93. Northwest winds 10 to
15 mph.
.TONIGHT...Mostly clear. Lows 51 to 61. North winds 10 to 15 mph.
.THURSDAY...Sunny. Highs 87 to 93. North winds up to 10 mph.
.THURSDAY NIGHT...Mostly clear. Lows 52 to 62. North winds around
10 mph with gusts to 20 mph.
.FRIDAY...Sunny. Highs 92 to 98. North winds up to 10 mph.
.FRIDAY NIGHT AND SATURDAY...Partly cloudy. Lows 57 to 67. Highs
94 to 99.
.SATURDAY NIGHT...Mostly cloudy. A slight chance of showers in
the evening. Chance of rain 20 percent. Lows 62 to 72.
.SUNDAY AND SUNDAY NIGHT...Mostly cloudy. A chance of showers
with a slight chance of thunderstorms. Chance of rain 30 percent.
Highs 87 to 94. Lows 57 to 67.
.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
87 to 94.
.MONDAY NIGHT...Mostly cloudy with a chance of showers in the
evening, then partly cloudy after midnight. Chance of rain
30 percent. Lows 56 to 66.
.TUESDAY...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
84 to 91.

$$
=