230
FPUS55 KBOI 172109
ZFPBOI

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

Spot temperatures are for tonight, Monday, Monday night, and
Tuesday.


IDZ011-180500-
West Central Mountains-
308 PM MDT Sun Aug 17 2025

...FLASH FLOOD WATCH IN EFFECT UNTIL MIDNIGHT MDT TONIGHT...

.TONIGHT...Increasing clouds. Isolated rain showers and
thunderstorms. Patchy fog after midnight. Thunderstorms may
produce heavy rainfall. Chance of rain 20 percent. Lows 50 to 60.
.MONDAY...Patchy fog in the morning. Sunny. Highs 75 to 89.
.MONDAY NIGHT...Mostly clear. Lows 53 to 63.
.TUESDAY...Sunny. Highs 81 to 95.
.TUESDAY NIGHT...Mostly clear. Lows 52 to 62.
.WEDNESDAY AND WEDNESDAY NIGHT...Mostly clear. Highs 77 to 91.
Lows 48 to 58.
.THURSDAY THROUGH FRIDAY...Clear. Highs 78 to 93. Lows 48 to 58.
.FRIDAY NIGHT AND SATURDAY...Mostly clear. Lows 52 to 63. Highs
82 to 96.
.SATURDAY NIGHT...Partly cloudy. Lows 54 to 65.
.SUNDAY...Partly cloudy. A slight chance of showers and
thunderstorms in the afternoon. Chance of rain 20 percent. Highs
79 to 93.

&&
                  TEMPERATURE
McCall          50  84  53  89

$$
=

IDZ013-180500-
Boise Mountains-
308 PM MDT Sun Aug 17 2025

.TONIGHT...Partly cloudy. Isolated rain showers and thunderstorms
this evening. Thunderstorms may produce heavy rainfall this
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 84 to 99.
.TUESDAY NIGHT...Mostly clear. Lows 48 to 63.
.WEDNESDAY...Sunny. Highs 80 to 95.
.WEDNESDAY NIGHT THROUGH THURSDAY NIGHT...Clear. Lows 44 to 59.
Highs 80 to 95.
.FRIDAY THROUGH SATURDAY...Mostly clear. Highs 84 to 99. Lows
49 to 64.
.SATURDAY NIGHT...Partly cloudy. Lows 50 to 65.
.SUNDAY...Partly cloudy. A slight chance of showers and
thunderstorms in the afternoon. Chance of rain 20 percent. Highs
80 to 95.

&&
                  TEMPERATURE
Idaho City      49  92  52  97

$$
=

IDZ028-180500-
Camas Prairie-
308 PM MDT Sun Aug 17 2025

.TONIGHT...Partly cloudy with isolated showers and thunderstorms
this evening, then mostly clear after midnight. Thunderstorms may
produce heavy rainfall this evening. Chance of rain 20 percent.
Lows 47 to 53. Southwest winds 10 to 15 mph this evening,
becoming light after midnight.
.MONDAY...Sunny. Highs 86 to 91. East winds around 10 mph in the
morning, shifting to south in the afternoon. Gusts to 20 mph.
.MONDAY NIGHT...Mostly clear. Lows 51 to 56. North winds around
10 mph with gusts to 20 mph.
.TUESDAY...Sunny. Highs 90 to 95. Northeast winds around 10 mph
in the morning, shifting to southeast with gusts to 25 mph in the
afternoon.
.TUESDAY NIGHT...Mostly clear. Lows 50 to 57. West winds 10 to
15 mph in the evening, shifting to north after midnight.
.WEDNESDAY AND WEDNESDAY NIGHT...Mostly clear. Highs 87 to 92.
Lows 47 to 54.
.THURSDAY...Sunny. Highs 86 to 91.
.THURSDAY NIGHT THROUGH SATURDAY...Mostly clear. Lows 48 to 58.
Highs 88 to 93.
.SATURDAY NIGHT...Partly cloudy. Lows 53 to 59.
.SUNDAY...Partly cloudy. A slight chance of showers and
thunderstorms in the afternoon. Chance of rain 20 percent. Highs
85 to 90.

&&
                  TEMPERATURE
Fairfield       48  88  51  92

$$
=

IDZ033-180500-
Upper Weiser River-
308 PM MDT Sun Aug 17 2025

...FLASH FLOOD WATCH IN EFFECT UNTIL MIDNIGHT MDT TONIGHT...

.TONIGHT...Increasing clouds. Isolated thunderstorms. Scattered
showers, mainly after midnight. Thunderstorms may produce heavy
rainfall. Chance of rain 30 percent. Lows 59 to 64. Light winds.
.MONDAY...Sunny. Highs 87 to 93. South winds up to 10 mph.
.MONDAY NIGHT...Mostly clear. Lows 62 to 67. North winds up to
10 mph.
.TUESDAY...Sunny. Highs 92 to 98. Northeast winds up to 10 mph in
the morning, shifting to southwest in the afternoon.
.TUESDAY NIGHT...Mostly clear. Lows 62 to 67. West winds around
10 mph in the evening, shifting to north after midnight.
.WEDNESDAY...Sunny. Highs 90 to 95.
.WEDNESDAY NIGHT THROUGH THURSDAY NIGHT...Clear. Lows 58 to 64.
Highs 89 to 94.
.FRIDAY...Sunny. Highs 94 to 99.
.FRIDAY NIGHT AND SATURDAY...Mostly clear. Lows 63 to 68. Highs
94 to 100.
.SATURDAY NIGHT...Partly cloudy. Lows 64 to 69.
.SUNDAY...Sunny. Highs 92 to 98.

&&
                  TEMPERATURE
Council         61  93  64  98
Cambridge       59  92  62  97

$$
=

IDZ012-ORZ064-180500-
Lower Treasure Valley-Oregon Lower Treasure Valley-
308 PM MDT Sun Aug 17 2025 /208 PM PDT Sun Aug 17 2025/

...FLASH FLOOD WATCH IN EFFECT UNTIL MIDNIGHT MDT /11 PM PDT/
TONIGHT...

.TONIGHT...Partly cloudy with isolated showers and thunderstorms.
Thunderstorms may produce heavy rainfall. Chance of rain
20 percent. Lows 61 to 66. Light winds.
.MONDAY...Sunny. Highs 91 to 96. Light winds in the morning,
becoming west up to 10 mph in the afternoon.
.MONDAY NIGHT...Mostly clear. Lows 62 to 67. Northwest winds up
to 10 mph.
.TUESDAY...Sunny. Highs 95 to 100. Northwest winds up to 10 mph.
.TUESDAY NIGHT...Mostly clear. Lows 63 to 68. Northwest winds
10 to 15 mph.
.WEDNESDAY THROUGH FRIDAY...Clear. Highs 92 to 100. Lows 58 to
65.
.FRIDAY NIGHT AND SATURDAY...Mostly clear. Lows 63 to 68. Highs
97 to 102.
.SATURDAY NIGHT...Partly cloudy. Lows 64 to 69.
.SUNDAY...Sunny. Highs 95 to 100.

&&
                  TEMPERATURE
Caldwell        62  95  62  97
Ontario         62  94  63  98

$$
=

IDZ014-180500-
Upper Treasure Valley-
308 PM MDT Sun Aug 17 2025

.TONIGHT...Partly cloudy with isolated showers and thunderstorms
this evening, then mostly clear after midnight. Thunderstorms may
produce heavy rainfall this evening. Chance of rain 20 percent.
Lows 58 to 65. North winds up to 10 mph with gusts to 20 mph this
evening, becoming light after midnight.
.MONDAY...Sunny. Highs 93 to 98. Southeast winds up to 10 mph in
the morning, shifting to west around 10 mph in the afternoon.
.MONDAY NIGHT...Mostly clear. Lows 60 to 66. North winds up to
10 mph.
.TUESDAY...Sunny. Highs 97 to 102. Southeast winds up to 10 mph
with gusts to 20 mph.
.TUESDAY NIGHT...Mostly clear. Lows 61 to 66. Northwest winds up
to 10 mph with gusts to 20 mph.
.WEDNESDAY...Sunny. Highs 93 to 98.
.WEDNESDAY NIGHT AND THURSDAY...Clear. Lows 58 to 63. Highs 92 to
97. Breezy.
.THURSDAY NIGHT THROUGH SATURDAY...Mostly clear. Lows 57 to 66.
Highs 95 to 102.
.SATURDAY NIGHT...Partly cloudy. Lows 63 to 68.
.SUNDAY...Partly cloudy. A slight chance of showers and
thunderstorms in the afternoon. Chance of rain 20 percent. Highs
94 to 99.

&&
                  TEMPERATURE
Boise           65  95  66  98
Mountain Home   60  98  62 101

$$
=

IDZ016-180500-
Western Magic Valley-
308 PM MDT Sun Aug 17 2025

.TONIGHT...Partly cloudy with isolated showers and thunderstorms
this evening, then mostly clear after midnight. Thunderstorms may
produce heavy rainfall this evening. Chance of rain 20 percent.
Lows 55 to 60. Southeast winds up to 10 mph. Gusts to 20 mph this
evening.
.MONDAY...Sunny. Highs 92 to 97. Light winds in the morning,
becoming southwest around 10 mph in the afternoon.
.MONDAY NIGHT...Mostly clear. Lows 57 to 63. Southwest winds
around 10 mph in the evening, shifting to southeast after
midnight.
.TUESDAY...Sunny. Highs 96 to 101. Southeast winds around 10 mph
with gusts to 20 mph.
.TUESDAY NIGHT...Decreasing clouds. Lows 61 to 66. Southwest
winds around 10 mph with gusts to 20 mph.
.WEDNESDAY AND WEDNESDAY NIGHT...Mostly clear. Highs 90 to 95.
Lows 58 to 63.
.THURSDAY...Sunny. Highs 89 to 94.
.THURSDAY NIGHT AND FRIDAY...Mostly clear. Lows 58 to 63. Highs
92 to 97.
.FRIDAY NIGHT...Partly cloudy. Lows 60 to 65.
.SATURDAY...Partly cloudy. A slight chance of showers and
thunderstorms in the afternoon. Chance of rain 20 percent. Highs
92 to 98.
.SATURDAY NIGHT...Partly cloudy. Lows 62 to 67.
.SUNDAY...Partly cloudy. A chance of showers and thunderstorms in
the afternoon. Chance of rain 30 percent. Highs 88 to 94.

&&
                  TEMPERATURE
Jerome          58  92  61  96
Twin Falls      57  93  61  96

$$
=

IDZ029-180500-
Owyhee Mountains-
308 PM MDT Sun Aug 17 2025

...FLASH FLOOD WATCH IN EFFECT UNTIL MIDNIGHT MDT TONIGHT...

.TONIGHT...Partly cloudy. Scattered showers and thunderstorms
this evening. Thunderstorms may produce heavy rainfall this
evening. Chance of rain 30 percent. Lows 54 to 62.
.MONDAY...Sunny. Highs 84 to 90.
.MONDAY NIGHT...Mostly clear. Lows 56 to 64.
.TUESDAY...Sunny. Highs 87 to 94.
.TUESDAY NIGHT...Mostly clear. Lows 55 to 65.
.WEDNESDAY AND WEDNESDAY NIGHT...Mostly clear. Highs 84 to 90.
Lows 52 to 62.
.THURSDAY...Sunny. Highs 83 to 91.
.THURSDAY NIGHT AND FRIDAY...Mostly clear. Lows 54 to 63. Highs
87 to 95.
.FRIDAY NIGHT...Partly cloudy. Lows 59 to 67.
.SATURDAY...Partly cloudy. A slight chance of showers and
thunderstorms in the afternoon. Chance of rain 20 percent. Highs
88 to 95.
.SATURDAY NIGHT...Partly cloudy. A slight chance of showers and
thunderstorms in the evening. Chance of rain 20 percent. Lows
60 to 68.
.SUNDAY...Partly cloudy. A chance of showers and thunderstorms in
the afternoon. Chance of rain 30 percent. Highs 87 to 92.

$$
=

IDZ015-180500-
Southwest Highlands-
308 PM MDT Sun Aug 17 2025

...FLASH FLOOD WATCH IN EFFECT UNTIL MIDNIGHT MDT TONIGHT...

.TONIGHT...Partly cloudy with isolated showers and thunderstorms
this evening, then mostly clear after midnight. Thunderstorms may
produce heavy rainfall this evening. Chance of rain 20 percent.
Lows 53 to 59.
.MONDAY...Sunny. Highs 88 to 94.
.MONDAY NIGHT...Mostly clear. Lows 55 to 62.
.TUESDAY...Sunny. Highs 92 to 98.
.TUESDAY NIGHT...Mostly clear. Lows 56 to 63.
.WEDNESDAY AND WEDNESDAY NIGHT...Mostly clear. Highs 89 to 94.
Lows 54 to 59.
.THURSDAY...Sunny. Highs 87 to 93.
.THURSDAY NIGHT AND FRIDAY...Mostly clear. Lows 57 to 62. Highs
91 to 96.
.FRIDAY NIGHT...Partly cloudy. Lows 59 to 64.
.SATURDAY...Partly cloudy. A chance of showers and thunderstorms
in the afternoon. Chance of rain 30 percent. Highs 90 to 96.
.SATURDAY NIGHT...Partly cloudy. A slight chance of showers and
thunderstorms in the evening. Chance of rain 20 percent. Lows
59 to 65.
.SUNDAY...Partly cloudy. A chance of showers and thunderstorms,
mainly in the afternoon. Chance of rain 30 percent. Highs 88 to
93.

$$
=

IDZ030-180500-
Southern Twin  Falls County-
308 PM MDT Sun Aug 17 2025

.TONIGHT...Partly cloudy with isolated showers and thunderstorms
this evening, then mostly clear after midnight. Thunderstorms may
produce heavy rainfall this evening. Chance of rain 20 percent.
Lows 54 to 59.
.MONDAY...Sunny. Highs 89 to 94.
.MONDAY NIGHT...Mostly clear. Lows 59 to 64.
.TUESDAY...Sunny. Highs 93 to 98.
.TUESDAY NIGHT...Partly cloudy in the evening, then clearing.
Lows 61 to 66.
.WEDNESDAY...Partly cloudy. A slight chance of showers and
thunderstorms in the afternoon. Chance of rain 20 percent. Highs
89 to 94.
.WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Lows 57 to 62.
Highs 87 to 92.
.THURSDAY NIGHT...Increasing clouds. Lows 58 to 63.
.FRIDAY AND FRIDAY NIGHT...Partly cloudy. A slight chance of
showers and thunderstorms. Chance of rain 20 percent. Highs 90 to
95. Lows 60 to 65.
.SATURDAY...Partly cloudy. A chance of showers and thunderstorms
in the afternoon. Chance of rain 30 percent. Highs 89 to 94.
.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 61 to 66.
.SUNDAY...Partly cloudy. A chance of showers and thunderstorms,
mainly in the afternoon. Chance of rain 50 percent. Highs 87 to
92.

$$
=

ORZ062-180500-
Baker County-
208 PM PDT Sun Aug 17 2025

...FLASH FLOOD WATCH IN EFFECT UNTIL 11 PM PDT THIS EVENING...

.TONIGHT...Increasing clouds. Scattered rain showers. Scattered
thunderstorms, mainly this evening. Patchy fog after midnight.
Thunderstorms may produce heavy rainfall this evening.
Thunderstorms may produce heavy rainfall after midnight. Chance
of rain 30 percent. Lows 51 to 62. Light winds.
.MONDAY...Patchy fog in the morning. Sunny. Highs 84 to 94. Light
winds in the morning, becoming south 10 to 15 mph with gusts to
25 mph in the afternoon.
.MONDAY NIGHT...Mostly clear. Lows 49 to 60. Northwest winds
10 to 15 mph. Gusts to 25 mph in the evening.
.TUESDAY...Sunny. Highs 88 to 98. Northwest winds up to 10 mph.
.TUESDAY NIGHT...Mostly clear. Lows 50 to 61. Northwest winds
10 to 15 mph with gusts to 25 mph.
.WEDNESDAY...Sunny. Highs 83 to 93.
.WEDNESDAY NIGHT THROUGH THURSDAY NIGHT...Clear. Lows 47 to 60.
Highs 84 to 93.
.FRIDAY...Sunny. Highs 90 to 99.
.FRIDAY NIGHT AND SATURDAY...Mostly clear. Lows 53 to 65. Highs
92 to 100.
.SATURDAY NIGHT...Decreasing clouds. Lows 54 to 67.
.SUNDAY...Sunny. Highs 89 to 98.

&&
                  TEMPERATURE
Baker City      51  89  49  90

$$
=

ORZ061-180500-
Harney County-
208 PM PDT Sun Aug 17 2025

...FLASH FLOOD WATCH IN EFFECT UNTIL 11 PM PDT THIS EVENING...

.TONIGHT...Mostly cloudy with scattered showers and thunderstorms
this evening, then partly cloudy after midnight. Patchy fog after
midnight. Thunderstorms may produce heavy rainfall this evening.
Chance of rain 30 percent. Lows 48 to 56. Southwest winds up to
10 mph.
.MONDAY...Patchy fog in the morning. Sunny. Highs 79 to 89.
Southwest winds up to 10 mph with gusts to 20 mph.
.MONDAY NIGHT...Mostly clear. Lows 45 to 56. West winds up to
10 mph. Gusts to 20 mph in the evening.
.TUESDAY...Sunny. Highs 82 to 92. West winds up to 10 mph.
.TUESDAY NIGHT...Mostly clear. Lows 48 to 55. West winds around
10 mph with gusts to 20 mph.
.WEDNESDAY AND WEDNESDAY NIGHT...Mostly clear. Highs 79 to 89.
Lows 46 to 54.
.THURSDAY...Sunny. Highs 81 to 91.
.THURSDAY NIGHT THROUGH FRIDAY NIGHT...Mostly clear. Lows 49 to
62. Highs 86 to 96.
.SATURDAY...Partly cloudy. A slight chance of showers and
thunderstorms in the afternoon. Chance of rain 20 percent. Highs
86 to 96.
.SATURDAY NIGHT...Partly cloudy. Lows 52 to 63.
.SUNDAY...Partly cloudy. A slight chance of showers and
thunderstorms in the afternoon. Chance of rain 20 percent. Highs
84 to 94.

&&
                  TEMPERATURE
Burns           48  87  45  90

$$
=

ORZ063-180500-
Malheur County-
308 PM MDT Sun Aug 17 2025 /208 PM PDT Sun Aug 17 2025/

...FLASH FLOOD WATCH IN EFFECT UNTIL MIDNIGHT MDT /11 PM PDT/
TONIGHT...

.TONIGHT...Partly cloudy. Scattered showers and thunderstorms,
mainly this evening. Patchy fog after midnight. Thunderstorms may
produce heavy rainfall this evening. Thunderstorms may produce
heavy rainfall after midnight. Chance of rain 40 percent. Lows
54 to 64. Southeast winds up to 10 mph this evening, becoming
light after midnight.
.MONDAY...Patchy fog in the morning. Sunny. Highs 87 to 93.
Southwest winds up to 10 mph. Gusts to 20 mph in the afternoon.
.MONDAY NIGHT...Mostly clear. Lows 54 to 64. West winds up to
10 mph with gusts to 20 mph.
.TUESDAY...Sunny. Highs 91 to 97. Northwest winds up to 10 mph
with gusts to 20 mph.
.TUESDAY NIGHT...Mostly clear. Lows 53 to 63. West winds 10 to
15 mph.
.WEDNESDAY AND WEDNESDAY NIGHT...Mostly clear. Highs 88 to 95.
Lows 52 to 62.
.THURSDAY...Sunny. Highs 88 to 94.
.THURSDAY NIGHT AND FRIDAY...Mostly clear. Lows 53 to 63. Highs
93 to 98.
.FRIDAY NIGHT...Partly cloudy in the evening, then clearing. Lows
58 to 67.
.SATURDAY...Sunny. Highs 93 to 99.
.SATURDAY NIGHT AND SUNDAY...Partly cloudy. A slight chance of
showers and thunderstorms. Chance of rain 20 percent. Lows 58 to
68. Highs 91 to 98.

$$
=