Zone Forecast Product
Issued by NWS Boise, ID
Issued by NWS Boise, ID
418
FPUS55 KBOI 152031
ZFPBOI
Zone Forecasts for Southwest Idaho/Southeast Oregon
National Weather Service Boise ID
230 PM MDT Sat Aug 15 2026
Spot temperatures are for tonight, Sunday, Sunday night, and
Monday.
IDZ011-160400-
West Central Mountains-
230 PM MDT Sat Aug 15 2026
.TONIGHT...Numerous rain showers and scattered thunderstorms this
evening, then partly cloudy after midnight. Thunderstorms may
produce heavy rainfall and gusty winds this evening. Chance of
rain 60 percent. Lows 46 to 57.
.SUNDAY...Partly cloudy. A slight chance of thunderstorms in the
afternoon. Highs 74 to 88.
.SUNDAY NIGHT...Mostly cloudy. Lows 49 to 60.
.MONDAY...Partly sunny. Highs 76 to 90.
.MONDAY NIGHT...A slight chance of thunderstorms in the evening.
Mostly cloudy with a chance of showers. Chance of rain
30 percent. Lows 49 to 59.
.TUESDAY...Mostly sunny. Highs 74 to 88.
.TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. Areas of fog
through the day. Lows 46 to 56. Highs 73 to 87.
.WEDNESDAY NIGHT...Partly cloudy. Lows 47 to 58.
.THURSDAY...Sunny. Highs 76 to 90.
.THURSDAY NIGHT...Increasing clouds. Lows 50 to 60.
.FRIDAY AND FRIDAY NIGHT...Partly cloudy. A slight chance of
showers and thunderstorms. Chance of rain 20 percent. Highs 78 to
92. Lows 50 to 61.
.SATURDAY...Mostly sunny. Patchy fog in the morning. 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 74 to 88.
&&
TEMPERATURE
McCall 46 83 48 85
$$
=
IDZ013-160400-
Boise Mountains-
230 PM MDT Sat Aug 15 2026
...FLASH FLOOD WATCH IN EFFECT UNTIL 9 PM MDT THIS EVENING...
.TONIGHT...Mostly cloudy with scattered rain showers and
thunderstorms this evening, then partly cloudy after midnight.
Thunderstorms may produce heavy rainfall and gusty winds this
evening. Chance of rain 40 percent. Lows 43 to 58. Breezy. Gusts
to 35 mph this evening.
.SUNDAY...Sunny. Highs 77 to 92.
.SUNDAY NIGHT...Mostly cloudy. Lows 47 to 62.
.MONDAY...Partly sunny. Highs 78 to 93.
.MONDAY NIGHT...Mostly cloudy with a slight chance of rain
showers and thunderstorms in the evening, then partly cloudy
after midnight. Chance of rain 20 percent. Lows 47 to 62.
.TUESDAY THROUGH WEDNESDAY NIGHT...Partly cloudy. Highs 76 to 91.
Lows 44 to 59.
.THURSDAY...Sunny. Highs 79 to 94.
.THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows 46 to 61. Highs
81 to 96.
.FRIDAY NIGHT...Partly cloudy. A slight chance of showers in the
evening. Chance of rain 20 percent. Lows 47 to 62.
.SATURDAY...Partly cloudy with a slight chance of showers. A
slight chance of thunderstorms in the afternoon. Chance of rain
20 percent. Highs 77 to 92.
&&
TEMPERATURE
Idaho City 46 91 49 92
$$
=
IDZ028-160400-
Camas Prairie-
230 PM MDT Sat Aug 15 2026
.TONIGHT...Partly cloudy with scattered showers and thunderstorms
this evening, then mostly clear after midnight. Thunderstorms may
produce heavy rainfall and gusty winds this evening. Chance of
rain 30 percent. Lows 45 to 51. Breezy. Northeast winds 10 to
20 mph. Gusts to 40 mph this evening, decreasing to 20 mph after
midnight.
.SUNDAY...Sunny. Highs 83 to 88. East winds around 10 mph in the
morning, shifting to southwest in the afternoon.
.SUNDAY NIGHT...Increasing clouds. Lows 48 to 54. North winds
10 to 15 mph.
.MONDAY...Partly sunny. Highs 85 to 90. Northeast winds 10 to
15 mph in the morning, shifting to south in the afternoon.
.MONDAY NIGHT...Decreasing clouds. Lows 48 to 54. West winds
10 to 15 mph in the evening, shifting to north after midnight.
.TUESDAY AND TUESDAY NIGHT...Mostly cloudy. Highs 83 to 88. Lows
45 to 52. Breezy.
.WEDNESDAY AND WEDNESDAY NIGHT...Partly cloudy. Highs 82 to 87.
Lows 47 to 54.
.THURSDAY...Sunny. Highs 85 to 90.
.THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows 50 to 56. Highs
87 to 92.
.FRIDAY NIGHT...Partly cloudy. A slight chance of showers in the
evening. Chance of rain 20 percent. Lows 51 to 57.
.SATURDAY...Partly cloudy with a slight chance of showers. A
slight chance of thunderstorms in the afternoon. Chance of rain
20 percent. Highs 84 to 89.
&&
TEMPERATURE
Fairfield 45 86 49 88
$$
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IDZ033-160400-
Upper Weiser River-
230 PM MDT Sat Aug 15 2026
.TONIGHT...Mostly cloudy with scattered showers and thunderstorms
this evening, then partly cloudy after midnight. Thunderstorms
may produce heavy rainfall and gusty winds this evening. Chance
of rain 30 percent. Lows 58 to 63. Breezy. Northeast winds 10 to
20 mph. Gusts to 30 mph this evening.
.SUNDAY...Mostly sunny. Highs 87 to 92. East winds up to 10 mph
in the morning, shifting to southwest around 10 mph in the
afternoon.
.SUNDAY NIGHT...Mostly cloudy. Lows 60 to 66. North winds 10 to
15 mph.
.MONDAY...Partly sunny. Highs 89 to 94. Northeast winds 10 to
15 mph in the morning, shifting to southwest in the afternoon.
.MONDAY NIGHT...Mostly cloudy. A slight chance of showers and
thunderstorms in the evening. Chance of rain 20 percent. Lows
61 to 66. North winds up to 10 mph.
.TUESDAY THROUGH WEDNESDAY NIGHT...Partly cloudy. Highs 86 to 93.
Lows 57 to 64.
.THURSDAY...Sunny. Highs 89 to 94.
.THURSDAY NIGHT THROUGH FRIDAY NIGHT...Partly cloudy. Lows 61 to
66. Highs 90 to 95.
.SATURDAY...Partly cloudy. A slight chance of showers in the
afternoon. Chance of rain 20 percent. Highs 86 to 91.
&&
TEMPERATURE
Council 60 92 62 94
Cambridge 58 92 60 93
$$
=
ORZ064-160400-
Oregon Lower Treasure Valley-
230 PM MDT Sat Aug 15 2026 /130 PM PDT Sat Aug 15 2026/
.TONIGHT...Partly cloudy with scattered showers and thunderstorms
this evening, then mostly cloudy after midnight. Thunderstorms
may produce heavy rainfall and gusty winds this evening. Chance
of rain 30 percent. Lows 59 to 65. East winds 10 to 15 mph with
gusts to 30 mph this evening, shifting to north after midnight.
.SUNDAY...Mostly sunny. Highs 90 to 95. Light winds.
.SUNDAY NIGHT...Mostly cloudy. Patchy smoke. Lows 61 to 67. North
winds 10 to 15 mph.
.MONDAY...Patchy smoke in the morning. Partly sunny. Highs 92 to
97. Northwest winds up to 10 mph in the morning, shifting to east
around 10 mph in the afternoon.
.MONDAY NIGHT...Decreasing clouds. Lows 63 to 68. Northwest winds
around 10 mph.
.TUESDAY THROUGH WEDNESDAY NIGHT...Partly cloudy. Highs 89 to 96.
Lows 60 to 66.
.THURSDAY...Sunny. Highs 91 to 96.
.THURSDAY NIGHT THROUGH SATURDAY...Partly cloudy. Lows 62 to 68.
Highs 89 to 98.
&&
TEMPERATURE
Ontario 59 93 61 95
$$
=
IDZ012-160400-
Lower Treasure Valley-
230 PM MDT Sat Aug 15 2026
.TONIGHT...Partly cloudy with scattered showers and thunderstorms
this evening, then mostly cloudy after midnight. Thunderstorms
may produce heavy rainfall and gusty winds this evening. Chance
of rain 30 percent. Lows 57 to 62. Breezy. Southeast winds 10 to
20 mph with gusts to 35 mph this evening, becoming east up to
10 mph after midnight.
.SUNDAY...Mostly sunny. Highs 90 to 95. Southeast winds up to
10 mph in the morning, shifting to northwest around 10 mph in the
afternoon.
.SUNDAY NIGHT...Mostly cloudy. Patchy smoke after midnight. Lows
59 to 64. North winds around 10 mph.
.MONDAY...Patchy smoke in the morning. Partly sunny. Highs 91 to
96. East winds up to 10 mph in the morning, shifting to southwest
around 10 mph in the afternoon.
.MONDAY NIGHT...Decreasing clouds. Lows 60 to 66. Northwest winds
up to 10 mph.
.TUESDAY THROUGH WEDNESDAY NIGHT...Partly cloudy. Highs 89 to 94.
Lows 57 to 63.
.THURSDAY...Sunny. Highs 91 to 96.
.THURSDAY NIGHT THROUGH SATURDAY...Partly cloudy. Lows 60 to 66.
Highs 88 to 97.
&&
TEMPERATURE
Caldwell 57 93 59 94
$$
=
IDZ014-160400-
Upper Treasure Valley-
230 PM MDT Sat Aug 15 2026
.TONIGHT...Partly cloudy. Scattered showers and thunderstorms
this evening. Thunderstorms may produce heavy rainfall and gusty
winds this evening. Chance of rain 30 percent. Lows 56 to 62.
Breezy. East winds 10 to 20 mph with gusts to 35 mph.
.SUNDAY...Sunny. Highs 91 to 96. Southeast winds 10 to 15 mph in
the morning, shifting to northwest in the afternoon.
.SUNDAY NIGHT...Mostly cloudy. Patchy smoke after midnight. Lows
59 to 65. North winds 10 to 15 mph.
.MONDAY...Patchy smoke in the morning. Partly sunny. Highs 92 to
97. East winds around 10 mph in the morning, shifting to
southwest in the afternoon.
.MONDAY NIGHT...Partly cloudy. Lows 59 to 64. Northwest winds
10 to 15 mph.
.TUESDAY...Partly sunny. Highs 90 to 95.
.TUESDAY NIGHT THROUGH FRIDAY NIGHT...Partly cloudy. Lows 56 to
66. Highs 90 to 98.
.SATURDAY...Partly cloudy. A slight chance of showers in the
afternoon. Chance of rain 20 percent. Highs 90 to 95.
&&
TEMPERATURE
Boise 61 92 64 94
Mountain Home 58 95 61 96
$$
=
IDZ016-160400-
Western Magic Valley-
230 PM MDT Sat Aug 15 2026
.TONIGHT...Partly cloudy with scattered showers and thunderstorms
this evening, then mostly clear after midnight. Thunderstorms may
produce heavy rainfall and gusty winds this evening. Chance of
rain 30 percent. Lows 55 to 60. Breezy. East winds 10 to 20 mph
with gusts to 35 mph.
.SUNDAY...Sunny. Highs 87 to 92. East winds 10 to 15 mph in the
morning, shifting to northwest in the afternoon. Gusts to 25 mph.
.SUNDAY NIGHT...Increasing clouds. Lows 58 to 63. East winds
10 to 15 mph. Gusts to 25 mph after midnight.
.MONDAY...Mostly sunny. Highs 88 to 93. East winds 10 to 15 mph
in the morning, shifting to west in the afternoon.
.MONDAY NIGHT...Decreasing clouds. Lows 58 to 64. West winds
around 10 mph in the evening, shifting to southeast up to 10 mph
after midnight.
.TUESDAY AND TUESDAY NIGHT...Mostly cloudy. Highs 86 to 91. Lows
56 to 61.
.WEDNESDAY THROUGH THURSDAY NIGHT...Partly cloudy. Highs 86 to
94. Lows 57 to 65.
.FRIDAY...Partly cloudy. A slight chance of showers and
thunderstorms in the afternoon. Chance of rain 20 percent. Highs
91 to 96.
.FRIDAY NIGHT...Partly cloudy with a 20 percent chance of
showers. Lows 60 to 65.
.SATURDAY...Partly cloudy. A slight chance of showers and
thunderstorms in the afternoon. Chance of rain 20 percent. Highs
87 to 92.
&&
TEMPERATURE
Jerome 58 87 61 88
Twin Falls 58 88 62 89
$$
=
IDZ029-160400-
Owyhee Mountains-
230 PM MDT Sat Aug 15 2026
.TONIGHT...Partly cloudy. Isolated showers and thunderstorms this
evening. Thunderstorms may produce heavy rainfall and gusty winds
this evening. Chance of rain 20 percent. Lows 53 to 62.
.SUNDAY...Mostly sunny. Highs 82 to 90.
.SUNDAY NIGHT...Mostly cloudy. Patchy smoke after midnight. Lows
56 to 65.
.MONDAY...Partly sunny. Highs 84 to 91.
.MONDAY NIGHT...Decreasing clouds. Lows 56 to 66.
.TUESDAY THROUGH FRIDAY NIGHT...Partly cloudy. Highs 82 to 92.
Lows 55 to 65.
.SATURDAY...Partly sunny in the morning, then clearing. A slight
chance of showers. A slight chance of thunderstorms in the
afternoon. Chance of rain 20 percent. Highs 82 to 88.
$$
=
IDZ015-160400-
Southwest Highlands-
230 PM MDT Sat Aug 15 2026
.TONIGHT...Partly cloudy with scattered showers and thunderstorms
this evening, then mostly clear after midnight. Thunderstorms may
produce heavy rainfall and gusty winds this evening. Chance of
rain 30 percent. Lows 54 to 60. Breezy.
.SUNDAY...Mostly sunny. Highs 86 to 91.
.SUNDAY NIGHT...Mostly cloudy. Lows 55 to 62.
.MONDAY...Partly sunny. Highs 87 to 92.
.MONDAY NIGHT...Decreasing clouds. Lows 56 to 61.
.TUESDAY...Partly sunny. Highs 86 to 91.
.TUESDAY NIGHT THROUGH FRIDAY NIGHT...Partly cloudy. Lows 54 to
63. Highs 87 to 95.
.SATURDAY...Partly cloudy. A slight chance of showers and
thunderstorms in the afternoon. Chance of rain 20 percent. Highs
86 to 91.
$$
=
IDZ030-160400-
Southern Twin Falls County-
230 PM MDT Sat Aug 15 2026
.TONIGHT...Partly cloudy with isolated showers and thunderstorms
this evening, then mostly clear after midnight. Thunderstorms may
produce heavy rainfall and gusty winds this evening. Chance of
rain 20 percent. Lows 54 to 60.
.SUNDAY...Mostly sunny. Highs 86 to 91.
.SUNDAY NIGHT...Decreasing clouds. Lows 58 to 63.
.MONDAY...Partly sunny. Highs 87 to 92.
.MONDAY NIGHT...Mostly cloudy. Lows 59 to 64.
.TUESDAY AND TUESDAY NIGHT...Mostly cloudy. Highs 86 to 91. Lows
56 to 61.
.WEDNESDAY THROUGH THURSDAY NIGHT...Partly cloudy. Highs 86 to
94. Lows 57 to 66.
.FRIDAY THROUGH SATURDAY...Partly cloudy with a slight chance of
showers and thunderstorms. Chance of rain 20 percent. Highs 86 to
95. Lows 61 to 66.
$$
=
ORZ062-160400-
Baker County-
130 PM PDT Sat Aug 15 2026
.TONIGHT...Mostly cloudy. Scattered rain showers and
thunderstorms this evening. Thunderstorms may produce heavy
rainfall and gusty winds this evening. Chance of rain 30 percent.
Lows 49 to 61. Northwest winds 10 to 15 mph. Gusts to 25 mph this
evening.
.SUNDAY...Mostly sunny. Highs 84 to 92. Light winds in the
morning, becoming southeast 10 to 15 mph in the afternoon.
.SUNDAY NIGHT...Mostly cloudy. Patchy smoke. Lows 50 to 62.
Northwest winds 10 to 15 mph with gusts to 25 mph.
.MONDAY...Partly sunny. Patchy smoke in the morning. A slight
chance of showers and thunderstorms in the afternoon. Chance of
rain 20 percent. Highs 85 to 94. West winds up to 10 mph.
.MONDAY NIGHT...Mostly cloudy with a chance of rain showers with
a slight chance of thunderstorms in the evening, then partly
cloudy after midnight. Chance of rain 30 percent. Lows 50 to 61.
Northwest winds 10 to 15 mph.
.TUESDAY...Sunny. Highs 83 to 92.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Partly cloudy. Lows
44 to 59. Highs 83 to 91.
.THURSDAY...Sunny. Highs 85 to 94.
.THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows 49 to 63. Highs
86 to 95.
.FRIDAY NIGHT...Partly cloudy with a 20 percent chance of rain
showers. Lows 48 to 62.
.SATURDAY...Partly cloudy with a slight chance of rain showers. A
slight chance of thunderstorms in the afternoon. Chance of rain
20 percent. Highs 82 to 91.
&&
TEMPERATURE
Baker City 49 87 50 89
$$
=
ORZ061-160400-
Harney County-
130 PM PDT Sat Aug 15 2026
.TONIGHT...Increasing clouds. Patchy smoke after midnight. Lows
49 to 57. West winds 10 to 15 mph with gusts to 25 mph.
.SUNDAY...Mostly sunny. Patchy smoke. Highs 80 to 90. Southwest
winds 10 to 15 mph. Gusts to 25 mph in the afternoon.
.SUNDAY NIGHT...Mostly cloudy. Patchy smoke after midnight. Lows
51 to 59. Northwest winds 10 to 15 mph.
.MONDAY...Decreasing clouds. Highs 80 to 90. West winds 10 to
15 mph.
.MONDAY NIGHT...Mostly cloudy in the evening, then becoming
partly cloudy. Lows 50 to 58. West winds 10 to 15 mph.
.TUESDAY THROUGH FRIDAY...Partly cloudy. Highs 80 to 90. Lows
46 to 59.
.FRIDAY NIGHT AND SATURDAY...Partly cloudy. A 20 percent chance
of showers. Lows 48 to 58. Highs 78 to 87.
&&
TEMPERATURE
Burns 50 88 52 89
$$
=
ORZ063-160400-
Malheur County-
230 PM MDT Sat Aug 15 2026 /130 PM PDT Sat Aug 15 2026/
.TONIGHT...Partly cloudy. Isolated showers and thunderstorms this
evening. Thunderstorms may produce heavy rainfall and gusty winds
this evening. Chance of rain 20 percent. Lows 53 to 62. East
winds 10 to 15 mph this evening, shifting to west after midnight.
Gusts to 25 mph.
.SUNDAY...Sunny. Highs 88 to 93. Light winds in the morning,
becoming west 10 to 15 mph in the afternoon.
.SUNDAY NIGHT...Mostly cloudy. Patchy smoke after midnight. Lows
55 to 65. North winds 10 to 15 mph.
.MONDAY...Patchy smoke in the morning. Partly sunny. Highs 89 to
94. West winds 10 to 15 mph.
.MONDAY NIGHT...Mostly cloudy with a slight chance of showers and
thunderstorms in the evening, then partly cloudy after midnight.
Chance of rain 20 percent. Lows 55 to 65. Northwest winds 10 to
15 mph.
.TUESDAY THROUGH FRIDAY NIGHT...Partly cloudy. Highs 87 to 95.
Lows 52 to 62.
.SATURDAY...Partly cloudy. A slight chance of showers in the
afternoon. Chance of rain 20 percent. Highs 86 to 91.
$$
=