Zone Forecast Product
Issued by NWS Boise, ID

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792
FPUS55 KBOI 171408
ZFPBOI

Zone Forecasts for Southwest Idaho/Southeast Oregon
National Weather Service Boise ID
807 AM MDT Sun Aug 17 2025

Forecast Updated.

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


IDZ011-172200-
West Central Mountains-
807 AM MDT Sun Aug 17 2025

...FLASH FLOOD WATCH IN EFFECT FROM 3 PM MDT THIS AFTERNOON
THROUGH THIS EVENING...

.REST OF TODAY...Patchy fog this morning. Partly cloudy with
scattered showers. Scattered thunderstorms, mainly this
afternoon. Thunderstorms may produce heavy rainfall this morning.
Thunderstorms may produce heavy rainfall this afternoon. Chance
of rain 30 percent. Highs 70 to 84.
.TONIGHT...Partly cloudy. Isolated showers and thunderstorms in
the evening, then scattered showers and isolated thunderstorms
after midnight. Thunderstorms may produce heavy rainfall in the
evening. Chance of rain 30 percent. Lows 50 to 60.
.MONDAY...Sunny. Highs 75 to 89.
.MONDAY NIGHT...Mostly clear. Lows 52 to 63.
.TUESDAY...Sunny. Highs 80 to 94.
.TUESDAY NIGHT AND WEDNESDAY...Mostly clear. Lows 52 to 62. Highs
77 to 91.
.WEDNESDAY NIGHT AND THURSDAY...Clear. Lows 48 to 58. Highs 76 to
90.
.THURSDAY NIGHT THROUGH SATURDAY...Mostly clear. Lows 49 to 61.
Highs 81 to 95.

&&
               TEMPERATURE
McCall          77  51  83

$$
=

IDZ013-172200-
Boise Mountains-
807 AM MDT Sun Aug 17 2025

.REST OF TODAY...Patchy fog this morning. Partly cloudy with
scattered rain showers. Scattered thunderstorms, mainly this
afternoon. Thunderstorms may produce heavy rainfall this morning.
Thunderstorms may produce heavy rainfall this afternoon. Chance
of rain 50 percent. Highs 73 to 88.
.TONIGHT...Partly cloudy with isolated rain showers and
thunderstorms in the evening, then mostly clear after midnight.
Thunderstorms may produce heavy rainfall in the evening. Chance
of rain 20 percent. Lows 45 to 60.
.MONDAY...Sunny. Highs 79 to 94.
.MONDAY NIGHT...Mostly clear. Lows 48 to 63.
.TUESDAY...Sunny. Highs 83 to 98.
.TUESDAY NIGHT AND WEDNESDAY...Mostly clear. Lows 48 to 63. Highs
80 to 95.
.WEDNESDAY NIGHT AND THURSDAY...Clear. Lows 44 to 59. Highs 80 to
95.
.THURSDAY NIGHT THROUGH SATURDAY...Mostly clear. Lows 47 to 62.
Highs 83 to 98.

&&
               TEMPERATURE
Idaho City      86  50  92

$$
=

IDZ028-172200-
Camas Prairie-
807 AM MDT Sun Aug 17 2025

.REST OF TODAY...Partly cloudy. Scattered showers and
thunderstorms, mainly this afternoon. Thunderstorms may produce
heavy rainfall. Chance of rain 30 percent. Highs 80 to 85. Light
winds this morning, becoming southwest 10 to 15 mph this
afternoon.
.TONIGHT...Partly cloudy with isolated showers and thunderstorms
in the evening, then mostly clear after midnight. Thunderstorms
may produce heavy rainfall in the evening. Chance of rain
20 percent. Lows 48 to 53. Southwest winds 10 to 15 mph with
gusts to 25 mph in the evening, becoming light after midnight.
.MONDAY...Sunny. Highs 85 to 90. Northeast winds up to 10 mph in
the morning, shifting to southeast in the afternoon.
.MONDAY NIGHT...Mostly clear. Lows 50 to 56. South winds up to
10 mph in the evening, shifting to west around 10 mph after
midnight.
.TUESDAY...Sunny. Highs 89 to 94. North winds around 10 mph in
the morning, shifting to southeast with gusts to 25 mph in the
afternoon.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Mostly clear. Lows 48 to
56. Highs 87 to 92.
.THURSDAY...Sunny. Highs 86 to 91.
.THURSDAY NIGHT THROUGH SATURDAY...Mostly clear. Lows 50 to 58.
Highs 88 to 93.

&&
               TEMPERATURE
Fairfield       83  48  88

$$
=

IDZ033-172200-
Upper Weiser River-
807 AM MDT Sun Aug 17 2025

...FLASH FLOOD WATCH IN EFFECT FROM 3 PM MDT THIS AFTERNOON
THROUGH THIS EVENING...

.REST OF TODAY...Partly cloudy. Isolated showers and
thunderstorms this morning. Patchy fog this morning.
Thunderstorms may produce heavy rainfall this morning. Chance of
rain 20 percent. Highs 82 to 88. Southeast winds up to 10 mph.
.TONIGHT...Partly cloudy. Isolated showers and thunderstorms
after midnight. Chance of rain 20 percent. Lows 59 to 64. South
winds up to 10 mph in the evening, shifting to northeast after
midnight.
.MONDAY...Sunny. Highs 88 to 93. Southeast winds up to 10 mph
with gusts to 20 mph.
.MONDAY NIGHT...Mostly clear. Lows 62 to 67. South winds up to
10 mph in the evening, shifting to north after midnight.
.TUESDAY...Sunny. Highs 92 to 97. North winds up to 10 mph in the
morning, shifting to south in the afternoon.
.TUESDAY NIGHT AND WEDNESDAY...Mostly clear. Lows 61 to 66. Highs
89 to 95.
.WEDNESDAY NIGHT AND THURSDAY...Clear. Lows 59 to 64. Highs 89 to
94.
.THURSDAY NIGHT THROUGH SATURDAY...Mostly clear. Lows 59 to 67.
Highs 93 to 98.

&&
               TEMPERATURE
Council         87  61  93
Cambridge       87  59  92

$$
=

IDZ012-ORZ064-172200-
Lower Treasure Valley-Oregon Lower Treasure Valley-
807 AM MDT Sun Aug 17 2025 /707 AM PDT Sun Aug 17 2025/

...FLASH FLOOD WATCH IN EFFECT FROM 3 PM MDT /2 PM PDT/ THIS
AFTERNOON THROUGH THIS EVENING...

.REST OF TODAY...Partly cloudy. Scattered showers and isolated
thunderstorms this morning. Patchy fog this morning.
Thunderstorms may produce heavy rainfall this morning. Chance of
rain 30 percent. Highs 86 to 91. West winds up to 10 mph this
morning, shifting to northeast this afternoon.
.TONIGHT...Partly cloudy. Isolated showers and thunderstorms in
the evening. Thunderstorms may produce heavy rainfall in the
evening. Chance of rain 20 percent. Lows 61 to 66. East winds up
to 10 mph.
.MONDAY...Sunny. Highs 91 to 96. South winds up to 10 mph.
.MONDAY NIGHT...Mostly clear. Lows 62 to 67. Northeast winds up
to 10 mph in the evening, shifting to northwest after midnight.
.TUESDAY...Sunny. Highs 94 to 99. West winds up to 10 mph.
.TUESDAY NIGHT...Mostly clear. Lows 63 to 68.
.WEDNESDAY THROUGH THURSDAY...Clear. Highs 92 to 97. Lows 61 to
66.
.THURSDAY NIGHT THROUGH SATURDAY...Mostly clear. Lows 60 to 67.
Highs 95 to 101.

&&
               TEMPERATURE
Caldwell        89  63  95
Ontario         89  63  95

$$
=

IDZ014-172200-
Upper Treasure Valley-
807 AM MDT Sun Aug 17 2025

.REST OF TODAY...Mostly sunny. Patchy fog this morning. Scattered
showers and thunderstorms, mainly this afternoon. Thunderstorms
may produce heavy rainfall this morning. Thunderstorms may
produce heavy rainfall this afternoon. Chance of rain 30 percent.
Highs 86 to 91. Northwest winds 10 to 15 mph.
.TONIGHT...Partly cloudy with isolated showers and thunderstorms
in the evening, then mostly clear after midnight. Thunderstorms
may produce heavy rainfall in the evening. Chance of rain
20 percent. Lows 58 to 65. Northwest winds up to 10 mph in the
evening, shifting to southeast after midnight.
.MONDAY...Sunny. Highs 93 to 98. Southeast winds 10 to 15 mph.
.MONDAY NIGHT...Mostly clear. Lows 60 to 66. North winds up to
10 mph.
.TUESDAY...Sunny. Highs 96 to 101. East winds up to 10 mph in the
morning, shifting to west around 10 mph in the afternoon.
.TUESDAY NIGHT AND WEDNESDAY...Mostly clear. Lows 60 to 65. Highs
93 to 98.
.WEDNESDAY NIGHT AND THURSDAY...Clear. Lows 58 to 63. Highs 92 to
97.
.THURSDAY NIGHT THROUGH SATURDAY...Mostly clear. Lows 58 to 66.
Highs 95 to 100.

&&
               TEMPERATURE
Boise           88  65  95
Mountain Home   90  60  98

$$
=

IDZ016-172200-
Western Magic Valley-
807 AM MDT Sun Aug 17 2025

.REST OF TODAY...Partly cloudy. Scattered showers and
thunderstorms, mainly this afternoon. Thunderstorms may produce
heavy rainfall. Chance of rain 30 percent. Highs 84 to 89. West
winds 10 to 15 mph.
.TONIGHT...Partly cloudy in the evening, then clearing. Lows
55 to 60. Southeast winds up to 10 mph.
.MONDAY...Sunny. Highs 92 to 97. East winds around 10 mph.
.MONDAY NIGHT...Mostly clear. Lows 58 to 63. Southeast winds
around 10 mph.
.TUESDAY...Sunny. Highs 95 to 100. Southeast winds around 10 mph
with gusts to 20 mph.
.TUESDAY NIGHT THROUGH FRIDAY NIGHT...Mostly clear. Lows 58 to
65. Highs 89 to 96.
.SATURDAY...Partly cloudy. A slight chance of showers in the
afternoon. Chance of rain 20 percent. Highs 91 to 96.

&&
               TEMPERATURE
Jerome          85  58  92
Twin Falls      84  58  93

$$
=

IDZ029-172200-
Owyhee Mountains-
807 AM MDT Sun Aug 17 2025

...FLASH FLOOD WATCH IN EFFECT FROM 3 PM MDT THIS AFTERNOON
THROUGH THIS EVENING...

.REST OF TODAY...Partly sunny. Patchy fog this morning. Scattered
showers and thunderstorms, mainly this afternoon. Thunderstorms
may produce heavy rainfall. Chance of rain 40 percent. Highs
78 to 84.
.TONIGHT...Mostly cloudy with scattered showers and thunderstorms
in the evening, then partly cloudy after midnight. Thunderstorms
may produce heavy rainfall in the evening. Chance of rain
30 percent. Lows 54 to 63.
.MONDAY...Sunny. Highs 84 to 90.
.MONDAY NIGHT...Mostly clear. Lows 56 to 64.
.TUESDAY...Sunny. Highs 86 to 94.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Mostly clear. Lows 54 to
64. Highs 85 to 90.
.THURSDAY...Sunny. Highs 83 to 91.
.THURSDAY NIGHT THROUGH FRIDAY NIGHT...Mostly clear. Lows 56 to
66. Highs 88 to 95.
.SATURDAY...Partly cloudy. A slight chance of showers and
thunderstorms in the afternoon. Chance of rain 20 percent. Highs
87 to 94.

$$
=

IDZ015-172200-
Southwest Highlands-
807 AM MDT Sun Aug 17 2025

...FLASH FLOOD WATCH IN EFFECT FROM 3 PM MDT THIS AFTERNOON
THROUGH THIS EVENING...

.REST OF TODAY...Patchy fog this morning. Isolated showers and
thunderstorms this morning, then numerous showers and scattered
thunderstorms this afternoon. Thunderstorms may produce heavy
rainfall. Chance of rain 60 percent. Highs 81 to 86.
.TONIGHT...Partly cloudy with scattered showers and thunderstorms
in the evening, then mostly clear after midnight. Thunderstorms
may produce heavy rainfall in the evening. Chance of rain
30 percent. Lows 53 to 59.
.MONDAY...Sunny. Highs 88 to 94.
.MONDAY NIGHT...Mostly clear. Lows 55 to 61.
.TUESDAY...Sunny. Highs 91 to 97.
.TUESDAY NIGHT THROUGH FRIDAY...Mostly clear. Lows 54 to 62.
Highs 88 to 96.
.FRIDAY NIGHT...Partly cloudy. Lows 59 to 64.
.SATURDAY...Partly cloudy. A slight chance of showers and
thunderstorms in the afternoon. Chance of rain 20 percent. Highs
90 to 95.

$$
=

IDZ030-172200-
Southern Twin  Falls County-
807 AM MDT Sun Aug 17 2025

.REST OF TODAY...Partly sunny. Patchy fog this morning. Scattered
showers and thunderstorms this afternoon. Thunderstorms may
produce heavy rainfall this afternoon. Chance of rain 50 percent.
Highs 82 to 87.
.TONIGHT...Partly cloudy with isolated showers and thunderstorms
in the evening, then mostly clear after midnight. Thunderstorms
may produce heavy rainfall in the evening. Chance of rain
20 percent. Lows 54 to 59.
.MONDAY...Sunny. Highs 89 to 94.
.MONDAY NIGHT...Mostly clear. Lows 58 to 63.
.TUESDAY...Sunny. Highs 93 to 98.
.TUESDAY NIGHT...Partly cloudy in the evening, then clearing.
Lows 59 to 64.
.WEDNESDAY THROUGH THURSDAY NIGHT...Mostly clear. Highs 87 to 94.
Lows 56 to 63.
.FRIDAY...Partly cloudy. A slight chance of showers in the
afternoon. Chance of rain 20 percent. Highs 90 to 95.
.FRIDAY NIGHT...Partly cloudy. Lows 60 to 65.
.SATURDAY...Partly cloudy. A chance of showers with a slight
chance of thunderstorms in the afternoon. Chance of rain
30 percent. Highs 89 to 94.

$$
=

ORZ062-172200-
Baker County-
707 AM PDT Sun Aug 17 2025

...FLASH FLOOD WATCH IN EFFECT FROM 2 PM PDT THIS AFTERNOON
THROUGH THIS EVENING...

.REST OF TODAY...Areas of dense fog this morning. Partly cloudy
with isolated rain showers and thunderstorms. Thunderstorms may
produce heavy rainfall. Chance of rain 20 percent. Highs 78 to
88. Northwest winds up to 10 mph.
.TONIGHT...Increasing clouds. Scattered rain showers. Scattered
thunderstorms, mainly in the evening. Thunderstorms may produce
heavy rainfall in the evening. Chance of rain 30 percent. Lows
51 to 62. Northwest winds up to 10 mph in the evening, shifting
to south after midnight.
.MONDAY...Sunny. Highs 84 to 94. South winds 10 to 15 mph. Gusts
to 25 mph in the afternoon.
.MONDAY NIGHT...Mostly clear. Lows 48 to 60. West winds up to
10 mph with gusts to 25 mph.
.TUESDAY...Sunny. Highs 87 to 97. Northwest winds up to 10 mph.
.TUESDAY NIGHT AND WEDNESDAY...Mostly clear. Lows 50 to 62. Highs
83 to 93.
.WEDNESDAY NIGHT THROUGH THURSDAY NIGHT...Clear. Lows 47 to 60.
Highs 84 to 93.
.FRIDAY THROUGH SATURDAY...Mostly clear. Highs 89 to 99. Lows
51 to 64.

&&
               TEMPERATURE
Baker City      82  51  87

$$
=

ORZ061-172200-
Harney County-
707 AM PDT Sun Aug 17 2025

...FLASH FLOOD WATCH IN EFFECT FROM 2 PM PDT THIS AFTERNOON
THROUGH THIS EVENING...

.REST OF TODAY...Mostly sunny. Areas of fog this morning.
Scattered rain showers and thunderstorms this afternoon.
Thunderstorms may produce heavy rainfall this afternoon. Chance
of rain 30 percent. Highs 74 to 84. Southwest winds up to 10 mph.
Gusts to 20 mph this afternoon.
.TONIGHT...Mostly cloudy with scattered showers and thunderstorms
in the evening, then partly cloudy after midnight. Thunderstorms
may produce heavy rainfall in the evening. Chance of rain
30 percent. Lows 48 to 56. Southwest winds up to 10 mph with
gusts to 20 mph.
.MONDAY...Sunny. Highs 80 to 90. Southwest winds 10 to 15 mph.
Gusts to 25 mph in the afternoon.
.MONDAY NIGHT...Mostly clear. Lows 44 to 55. West winds 10 to
15 mph. Gusts to 25 mph in the evening.
.TUESDAY...Sunny. Highs 82 to 92. West winds up to 10 mph with
gusts to 20 mph.
.TUESDAY NIGHT AND WEDNESDAY...Mostly clear. Lows 46 to 56. Highs
79 to 89.
.WEDNESDAY NIGHT AND THURSDAY...Clear. Lows 46 to 55. Highs 82 to
92.
.THURSDAY NIGHT THROUGH SATURDAY...Mostly clear. Lows 49 to 61.
Highs 86 to 96.

&&
               TEMPERATURE
Burns           82  48  87

$$
=

ORZ063-172200-
Malheur County-
807 AM MDT Sun Aug 17 2025 /707 AM PDT Sun Aug 17 2025/

...FLASH FLOOD WATCH IN EFFECT FROM 3 PM MDT /2 PM PDT/ THIS
AFTERNOON THROUGH THIS EVENING...

.REST OF TODAY...Mostly sunny. Patchy fog this morning. Scattered
showers and thunderstorms, mainly this afternoon. Thunderstorms
may produce heavy rainfall this morning. Thunderstorms may
produce heavy rainfall this afternoon. Chance of rain 30 percent.
Highs 82 to 89. Southwest winds up to 10 mph with gusts to
20 mph.
.TONIGHT...Mostly cloudy with scattered showers and thunderstorms
in the evening, then partly cloudy with isolated thunderstorms
after midnight. Thunderstorms may produce heavy rainfall in the
evening. Chance of rain 30 percent. Lows 54 to 64. Southeast
winds up to 10 mph. Gusts to 20 mph in the evening.
.MONDAY...Sunny. Highs 88 to 94. Southwest winds 10 to 15 mph.
.MONDAY NIGHT...Mostly clear. Lows 53 to 63. Southwest winds
10 to 15 mph.
.TUESDAY...Sunny. Highs 91 to 97. Southwest winds up to 10 mph in
the morning, shifting to northwest in the afternoon. Gusts to
20 mph.
.TUESDAY NIGHT...Mostly clear. Lows 53 to 63.
.WEDNESDAY...Sunny. Highs 88 to 95.
.WEDNESDAY NIGHT...Mostly clear. Lows 52 to 62.
.THURSDAY...Sunny. Highs 88 to 94.
.THURSDAY NIGHT THROUGH SATURDAY...Mostly clear. Lows 54 to 64.
Highs 92 to 99.

$$
=