818
FPUS55 KBOI 242031
ZFPBOI
ZONE FORECASTS FOR SOUTHWEST IDAHO/SOUTHEAST OREGON
NATIONAL WEATHER SERVICE BOISE ID
230 PM MDT THU SEP 24 2026
SPOT TEMPERATURES ARE FOR TONIGHT, FRIDAY, FRIDAY NIGHT, AND
SATURDAY.
IDZ011-250400-
WEST CENTRAL MOUNTAINS-
230 PM MDT THU SEP 24 2026
TONIGHT
INCREASING CLOUDS. PATCHY SMOKE THIS EVENING. LOWS
47 TO 58.
FRIDAY
PARTLY CLOUDY. SCATTERED RAIN SHOWERS IN THE AFTERNOON.
CHANCE OF RAIN 30 PERCENT. HIGHS 61 TO 74. TEMPERATURE FALLING
INTO THE MID 60S IN THE AFTERNOON. BREEZY.
FRIDAY NIGHT
PARTLY CLOUDY. AREAS OF FOG AFTER MIDNIGHT. MUCH
COLDER WITH LOWS 32 TO 42.
SATURDAY
AREAS OF FOG IN THE MORNING. MOSTLY SUNNY. COOLER
WITH HIGHS 51 TO 65.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS 34 TO 45.
SUNDAY
MOSTLY 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
55 TO 68.
SUNDAY NIGHT
MOSTLY CLOUDY. A SLIGHT CHANCE OF RAIN SHOWERS IN
THE EVENING. AREAS OF FOG AFTER MIDNIGHT. CHANCE OF RAIN
20 PERCENT. LOWS 35 TO 44.
MONDAY
AREAS OF FOG IN THE MORNING. MOSTLY SUNNY. HIGHS 54 TO
66.
MONDAY NIGHT AND TUESDAY
MOSTLY CLEAR. PATCHY FOG THROUGH THE
DAY. LOWS 32 TO 42. HIGHS 54 TO 66.
TUESDAY NIGHT AND WEDNESDAY
PARTLY CLOUDY. AREAS OF FOG
THROUGH THE DAY. LOWS 35 TO 44. HIGHS 56 TO 68.
WEDNESDAY NIGHT
PARTLY CLOUDY. PATCHY FOG AFTER MIDNIGHT. LOWS
35 TO 44.
THURSDAY
PATCHY FOG IN THE MORNING. SUNNY. HIGHS 57 TO 69.
TEMPERATURE
MCCALL 47 69 33 58
=
IDZ013-250400-
BOISE MOUNTAINS-
230 PM MDT THU SEP 24 2026
TONIGHT
MOSTLY CLEAR. LOWS 46 TO 61.
FRIDAY
MOSTLY SUNNY. HIGHS 65 TO 80. BREEZY.
FRIDAY NIGHT
PARTLY CLOUDY. COLDER WITH LOWS 30 TO 45. BREEZY.
SATURDAY
MOSTLY SUNNY. COOLER WITH HIGHS 54 TO 68.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS 36 TO 50.
SUNDAY AND SUNDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE
OF RAIN SHOWERS. HIGHS 58 TO 73. LOWS 32 TO 47.
MONDAY
MOSTLY SUNNY. HIGHS 55 TO 70.
MONDAY NIGHT THROUGH THURSDAY
MOSTLY CLEAR. LOWS 28 TO 43.
HIGHS 58 TO 73.
TEMPERATURE
IDAHO CITY 50 79 35 67
=
IDZ028-250400-
CAMAS PRAIRIE-
230 PM MDT THU SEP 24 2026
TONIGHT
MOSTLY CLEAR. LOWS 48 TO 53. EAST WINDS 10 TO 15 MPH.
FRIDAY
SUNNY. HIGHS 75 TO 80. BREEZY. EAST WINDS AROUND 10 MPH
IN THE MORNING, SHIFTING TO SOUTHWEST 10 TO 20 MPH WITH GUSTS TO
35 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. MUCH COLDER WITH LOWS 32 TO 37.
BREEZY. WEST WINDS 10 TO 20 MPH. GUSTS TO 35 MPH IN THE EVENING.
SATURDAY
MOSTLY SUNNY. COOLER WITH HIGHS 63 TO 68. WEST WINDS
AROUND 10 MPH WITH GUSTS TO 20 MPH.
SATURDAY NIGHT
INCREASING CLOUDS. LOWS 36 TO 41. SOUTHWEST
WINDS UP TO 10 MPH.
SUNDAY AND SUNDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE
OF RAIN SHOWERS. HIGHS 66 TO 71. LOWS 37 TO 42.
MONDAY
MOSTLY SUNNY. HIGHS 63 TO 68. BREEZY.
MONDAY NIGHT THROUGH THURSDAY
MOSTLY CLEAR. LOWS 30 TO 38.
HIGHS 63 TO 72. BREEZY.
TEMPERATURE
FAIRFIELD 48 78 32 66
=
IDZ033-250400-
UPPER WEISER RIVER-
230 PM MDT THU SEP 24 2026
TONIGHT
PARTLY CLOUDY. PATCHY SMOKE. LOWS 56 TO 62. SOUTH
WINDS UP TO 10 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS 73 TO 79. TEMPERATURE FALLING INTO
THE MID 70S IN THE AFTERNOON. SOUTHWEST WINDS 10 TO 15 MPH. GUSTS
TO 30 MPH IN THE AFTERNOON.
FRIDAY NIGHT
INCREASING CLOUDS. MUCH COOLER WITH LOWS 40 TO
45. WEST WINDS 10 TO 15 MPH WITH GUSTS TO 25 MPH.
SATURDAY
MOSTLY SUNNY. COOLER WITH HIGHS 62 TO 68. NORTHWEST
WINDS UP TO 10 MPH IN THE MORNING, BECOMING LIGHT IN THE
AFTERNOON.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS 43 TO 48. NORTHWEST WINDS
UP TO 10 MPH.
SUNDAY AND SUNDAY NIGHT
MOSTLY CLOUDY. HIGHS 65 TO 72. LOWS
43 TO 48.
MONDAY THROUGH TUESDAY
MOSTLY CLEAR. HIGHS 65 TO 73. LOWS
41 TO 46.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS 43 TO 48.
WEDNESDAY
SUNNY. HIGHS 67 TO 74.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS 43 TO 48.
THURSDAY
SUNNY. HIGHS 68 TO 74.
TEMPERATURE
COUNCIL 57 78 41 67
CAMBRIDGE 57 79 40 68
=
ORZ064-250400-
OREGON LOWER TREASURE VALLEY-
230 PM MDT THU SEP 24 2026 /130 PM PDT THU SEP 24 2026/
TONIGHT
INCREASING CLOUDS. LOWS 56 TO 61. SOUTH WINDS UP TO
10 MPH.
FRIDAY
PARTLY SUNNY. NOT AS WARM WITH HIGHS 77 TO 82. BREEZY.
SOUTHWEST WINDS 10 TO 20 MPH. GUSTS TO 25 MPH IN THE MORNING,
INCREASING TO 35 MPH IN THE AFTERNOON.
FRIDAY NIGHT
INCREASING CLOUDS. COOLER WITH LOWS 42 TO 47.
BREEZY. NORTHWEST WINDS 10 TO 20 MPH WITH GUSTS TO 30 MPH.
SATURDAY
MOSTLY SUNNY. COOLER WITH HIGHS 66 TO 71. NORTH WINDS
UP TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS 43 TO 48. NORTHWEST WINDS
UP TO 10 MPH.
SUNDAY AND SUNDAY NIGHT
MOSTLY CLOUDY. HIGHS 70 TO 75. LOWS
44 TO 49.
MONDAY THROUGH WEDNESDAY
MOSTLY CLEAR. HIGHS 71 TO 77. LOWS
42 TO 48.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS 42 TO 48.
THURSDAY
SUNNY. HIGHS 72 TO 77.
TEMPERATURE
ONTARIO 56 80 43 69
=
IDZ012-250400-
LOWER TREASURE VALLEY-
230 PM MDT THU SEP 24 2026
TONIGHT
INCREASING CLOUDS. LOWS 58 TO 63. SOUTHEAST WINDS
10 TO 15 MPH.
FRIDAY
PARTLY SUNNY. NOT AS WARM WITH HIGHS 78 TO 83.
TEMPERATURE FALLING INTO THE UPPER 70S IN THE AFTERNOON. BREEZY.
SOUTH WINDS 10 TO 15 MPH IN THE MORNING, SHIFTING TO WEST 10 TO
20 MPH WITH GUSTS TO 30 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. MUCH COOLER WITH LOWS 43 TO 48.
BREEZY. NORTHWEST WINDS 10 TO 20 MPH. GUSTS TO 30 MPH IN THE
EVENING.
SATURDAY
MOSTLY SUNNY. COOLER WITH HIGHS 65 TO 70. NORTHWEST
WINDS UP TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS 44 TO 49. NORTHWEST WINDS
UP TO 10 MPH.
SUNDAY AND SUNDAY NIGHT
MOSTLY CLOUDY. HIGHS 69 TO 74. LOWS
44 TO 49.
MONDAY THROUGH THURSDAY
MOSTLY CLEAR. HIGHS 70 TO 77. LOWS
42 TO 48.
TEMPERATURE
CALDWELL 61 81 46 67
=
IDZ014-250400-
UPPER TREASURE VALLEY-
230 PM MDT THU SEP 24 2026
TONIGHT
INCREASING CLOUDS. LOWS 55 TO 65. SOUTHEAST WINDS
10 TO 15 MPH WITH GUSTS TO 30 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS 81 TO 87. WINDY. SOUTHEAST WINDS
10 TO 15 MPH WITH GUSTS TO 25 MPH IN THE MORNING, SHIFTING TO
WEST 15 TO 25 MPH WITH GUSTS TO 35 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. COOLER WITH LOWS 43 TO 48. WINDY.
NORTHWEST WINDS 15 TO 25 MPH WITH GUSTS TO 40 MPH IN THE EVENING,
DECREASING TO 10 TO 15 MPH WITH GUSTS TO 30 MPH AFTER MIDNIGHT.
SATURDAY
MOSTLY SUNNY. MUCH COOLER WITH HIGHS 65 TO 70.
NORTHWEST WINDS 10 TO 15 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS 44 TO 49. WEST WINDS UP TO
10 MPH.
SUNDAY AND SUNDAY NIGHT
MOSTLY CLOUDY. HIGHS 70 TO 75. LOWS
45 TO 50.
MONDAY
MOSTLY SUNNY. HIGHS 68 TO 73. BREEZY.
MONDAY NIGHT THROUGH THURSDAY
MOSTLY CLEAR. LOWS 41 TO 48.
HIGHS 69 TO 78. BREEZY.
TEMPERATURE
BOISE 65 81 48 67
MOUNTAIN HOME 61 86 45 68
=
IDZ016-250400-
WESTERN MAGIC VALLEY-
230 PM MDT THU SEP 24 2026
TONIGHT
MOSTLY CLEAR. LOWS 53 TO 59. EAST WINDS 10 TO 15 MPH
WITH GUSTS TO 25 MPH.
FRIDAY
SUNNY. HIGHS 81 TO 86. BREEZY. EAST WINDS 10 TO 15 MPH
IN THE MORNING, SHIFTING TO WEST 10 TO 20 MPH WITH GUSTS TO
35 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. COOLER WITH LOWS 44 TO 49. WINDY.
WEST WINDS 15 TO 25 MPH. GUSTS TO 40 MPH IN THE EVENING,
DECREASING TO 30 MPH AFTER MIDNIGHT.
SATURDAY
MOSTLY SUNNY. MUCH COOLER WITH HIGHS 64 TO 69. WEST
WINDS 10 TO 15 MPH WITH GUSTS TO 25 MPH.
SATURDAY NIGHT
INCREASING CLOUDS. LOWS 43 TO 48. SOUTHWEST
WINDS UP TO 10 MPH.
SUNDAY AND SUNDAY NIGHT
MOSTLY CLOUDY. HIGHS 70 TO 75. LOWS
45 TO 50.
MONDAY
MOSTLY SUNNY. HIGHS 65 TO 70. BREEZY.
MONDAY NIGHT THROUGH THURSDAY
MOSTLY CLEAR. LOWS 40 TO 45.
HIGHS 66 TO 76. BREEZY.
TEMPERATURE
JEROME 55 81 47 65
TWIN FALLS 55 82 46 65
=
IDZ029-250400-
OWYHEE MOUNTAINS-
230 PM MDT THU SEP 24 2026
TONIGHT
INCREASING CLOUDS. LOWS 55 TO 65.
FRIDAY
MOSTLY SUNNY. NOT AS WARM WITH HIGHS 71 TO 77.
TEMPERATURE FALLING INTO THE UPPER 60S IN THE AFTERNOON. WINDY.
WEST WINDS AROUND 25 MPH IN THE AFTERNOON. GUSTS TO 40 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. MUCH COLDER WITH LOWS 37 TO 45.
BREEZY.
SATURDAY
MOSTLY SUNNY. COOLER WITH HIGHS 57 TO 67.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS 43 TO 48.
SUNDAY
MOSTLY CLOUDY. HIGHS 63 TO 70.
SUNDAY NIGHT
MOSTLY CLOUDY. A SLIGHT CHANCE OF RAIN SHOWERS
AFTER MIDNIGHT. CHANCE OF RAIN 20 PERCENT. LOWS 40 TO 48.
MONDAY
MOSTLY SUNNY. HIGHS 62 TO 67.
MONDAY NIGHT THROUGH THURSDAY
MOSTLY CLEAR. LOWS 38 TO 48.
HIGHS 64 TO 73.
=
IDZ015-250400-
SOUTHWEST HIGHLANDS-
230 PM MDT THU SEP 24 2026
TONIGHT
INCREASING CLOUDS. LOWS 51 TO 60.
FRIDAY
MOSTLY SUNNY. HIGHS 76 TO 83. WINDY. SOUTHWEST WINDS
25 TO 30 MPH IN THE AFTERNOON. GUSTS TO 40 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. COLDER WITH LOWS 38 TO 43. WINDY.
NORTHWEST WINDS AROUND 25 MPH WITH GUSTS TO 40 MPH IN THE
EVENING.
SATURDAY
MOSTLY SUNNY. COOLER WITH HIGHS 63 TO 71.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS 42 TO 47.
SUNDAY
DECREASING CLOUDS. HIGHS 67 TO 72.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN
SHOWERS. LOWS 41 TO 46.
MONDAY
MOSTLY SUNNY. HIGHS 63 TO 68.
MONDAY NIGHT THROUGH THURSDAY
MOSTLY CLEAR. LOWS 36 TO 44.
HIGHS 66 TO 76. BREEZY.
=
IDZ030-250400-
SOUTHERN TWIN FALLS COUNTY-
230 PM MDT THU SEP 24 2026
TONIGHT
MOSTLY CLEAR. LOWS 54 TO 59. BREEZY.
FRIDAY
MOSTLY SUNNY. HIGHS 79 TO 84. BREEZY. GUSTS TO 35 MPH
IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. COLDER WITH LOWS 40 TO 46. BREEZY.
GUSTS TO 40 MPH IN THE EVENING.
SATURDAY
MOSTLY SUNNY. COOLER WITH HIGHS 64 TO 69.
SATURDAY NIGHT
INCREASING CLOUDS. LOWS 42 TO 47.
SUNDAY
MOSTLY CLOUDY IN THE MORNING, THEN BECOMING PARTLY
SUNNY. HIGHS 69 TO 74.
SUNDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS AFTER
MIDNIGHT. CHANCE OF RAIN 30 PERCENT. LOWS 43 TO 48.
MONDAY
MOSTLY SUNNY. HIGHS 63 TO 68. BREEZY.
MONDAY NIGHT THROUGH WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS 37 TO
44. HIGHS 64 TO 73. BREEZY.
THURSDAY
SUNNY. HIGHS 71 TO 76.
=
ORZ062-250400-
BAKER COUNTY-
130 PM PDT THU SEP 24 2026
TONIGHT
INCREASING CLOUDS. LOWS 47 TO 59. SOUTHEAST WINDS
10 TO 15 MPH. GUSTS TO 25 MPH THIS EVENING.
FRIDAY
PARTLY CLOUDY. ISOLATED RAIN SHOWERS IN THE MORNING.
CHANCE OF RAIN 20 PERCENT. COOLER WITH HIGHS 65 TO 75. BREEZY.
SOUTHWEST WINDS 10 TO 20 MPH WITH GUSTS TO 30 MPH.
FRIDAY NIGHT
INCREASING CLOUDS. AREAS OF FOG AFTER MIDNIGHT.
MUCH COLDER WITH LOWS 31 TO 43. BREEZY. NORTHWEST WINDS 10 TO
20 MPH. GUSTS TO 30 MPH IN THE EVENING.
SATURDAY
AREAS OF FOG IN THE MORNING. MOSTLY SUNNY. HIGHS
59 TO 67. NORTHWEST WINDS UP TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS 33 TO 44. NORTH WINDS UP TO
10 MPH.
SUNDAY
MOSTLY CLOUDY. HIGHS 64 TO 71.
SUNDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
31 TO 43.
MONDAY
PATCHY FOG IN THE MORNING. SUNNY. HIGHS 62 TO 71.
MONDAY NIGHT
MOSTLY CLEAR. LOWS 31 TO 44.
TUESDAY
MOSTLY SUNNY. HIGHS 64 TO 71.
TUESDAY NIGHT THROUGH THURSDAY
PARTLY CLOUDY. AREAS OF FOG.
LOWS 33 TO 47. HIGHS 65 TO 74.
TEMPERATURE
BAKER CITY 47 69 31 63
=
ORZ061-250400-
HARNEY COUNTY-
130 PM PDT THU SEP 24 2026
TONIGHT
MOSTLY CLOUDY. LOWS 42 TO 54. SOUTH WINDS 10 TO
15 MPH. GUSTS TO 30 MPH THIS EVENING.
FRIDAY
PARTLY SUNNY IN THE MORNING, THEN CLEARING. MUCH COOLER
WITH HIGHS 62 TO 68. WINDY. WEST WINDS 15 TO 25 MPH WITH GUSTS TO
35 MPH.
FRIDAY NIGHT
INCREASING CLOUDS. PATCHY FOG AFTER MIDNIGHT.
COLDER WITH LOWS 29 TO 39. WINDY. NORTHWEST WINDS 15 TO 25 MPH IN
THE EVENING, DECREASING TO 10 TO 15 MPH AFTER MIDNIGHT.
SATURDAY
MOSTLY CLOUDY IN THE MORNING, THEN BECOMING MOSTLY
SUNNY. AREAS OF FOG IN THE MORNING. HIGHS 59 TO 65. NORTHEAST
WINDS UP TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS 35 TO 43. NORTHEAST WINDS
UP TO 10 MPH.
SUNDAY
DECREASING CLOUDS. HIGHS 62 TO 69.
SUNDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
31 TO 41.
MONDAY THROUGH TUESDAY NIGHT
MOSTLY CLEAR. HIGHS 62 TO 70.
LOWS 30 TO 42.
WEDNESDAY
PATCHY FOG IN THE MORNING. SUNNY. HIGHS 67 TO 73.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS 33 TO 43.
THURSDAY
MOSTLY SUNNY. HIGHS 67 TO 73.
TEMPERATURE
BURNS 42 65 29 64
=
ORZ063-250400-
MALHEUR COUNTY-
230 PM MDT THU SEP 24 2026 /130 PM PDT THU SEP 24 2026/
TONIGHT
INCREASING CLOUDS. LOWS 52 TO 61. SOUTH WINDS 10 TO
15 MPH WITH GUSTS TO 25 MPH.
FRIDAY
MOSTLY SUNNY. NOT AS WARM WITH HIGHS 70 TO 78. WINDY.
SOUTHWEST WINDS 15 TO 25 MPH WITH GUSTS TO 35 MPH.
FRIDAY NIGHT
INCREASING CLOUDS. MUCH COLDER WITH LOWS 35 TO
45. WINDY. NORTHWEST WINDS 15 TO 25 MPH IN THE EVENING,
DECREASING TO 10 TO 15 MPH AFTER MIDNIGHT.
SATURDAY
AREAS OF FOG IN THE MORNING. PARTLY SUNNY. HIGHS
62 TO 68. NORTH WINDS UP TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLOUDY. LOWS 39 TO 47. NORTH WINDS UP TO
10 MPH.
SUNDAY AND SUNDAY NIGHT
MOSTLY CLOUDY. HIGHS 67 TO 73. LOWS
37 TO 47.
MONDAY THROUGH TUESDAY NIGHT
MOSTLY CLEAR. HIGHS 65 TO 74.
LOWS 35 TO 45.
WEDNESDAY
PATCHY FOG IN THE MORNING. SUNNY. HIGHS 69 TO 75.
WEDNESDAY NIGHT AND THURSDAY
MOSTLY CLEAR. LOWS 38 TO 47.
HIGHS 69 TO 76.
=
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