724
FPUS55 KBOI 222031
ZFPBOI
ZONE FORECASTS FOR SOUTHWEST IDAHO/SOUTHEAST OREGON
NATIONAL WEATHER SERVICE BOISE ID
230 PM MDT TUE SEP 22 2026
SPOT TEMPERATURES ARE FOR TONIGHT, WEDNESDAY, WEDNESDAY NIGHT,
AND THURSDAY.
IDZ011-230400-
WEST CENTRAL MOUNTAINS-
230 PM MDT TUE SEP 22 2026
TONIGHT
PARTLY CLOUDY THIS EVENING, THEN CLEARING. PATCHY FOG
AFTER MIDNIGHT. LOWS 41 TO 51.
WEDNESDAY
AREAS OF FOG IN THE MORNING. SUNNY. HIGHS 65 TO 77.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS 44 TO 54.
THURSDAY
SUNNY. HIGHS 71 TO 85.
THURSDAY NIGHT
INCREASING CLOUDS. LOWS 48 TO 58.
FRIDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF RAIN SHOWERS IN THE
AFTERNOON. CHANCE OF RAIN 20 PERCENT. COOLER WITH HIGHS 61 TO 74.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS IN
THE EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT. AREAS OF FOG
AFTER MIDNIGHT. CHANCE OF RAIN 30 PERCENT. COLDER WITH LOWS 33 TO
43.
SATURDAY
AREAS OF FOG IN THE MORNING. PARTLY SUNNY. COOLER
WITH HIGHS 51 TO 63.
SATURDAY NIGHT AND SUNDAY
MOSTLY CLOUDY. LOWS 35 TO 44. HIGHS
54 TO 66.
SUNDAY NIGHT
MOSTLY CLOUDY. AREAS OF FOG AFTER MIDNIGHT. LOWS
35 TO 45.
MONDAY THROUGH TUESDAY
AREAS OF FOG IN THE MORNING. AREAS OF
FOG THROUGH THE DAY. PARTLY CLOUDY. HIGHS 53 TO 66. LOWS 33 TO
43.
TEMPERATURE
MCCALL 41 72 45 79
=
IDZ013-230400-
BOISE MOUNTAINS-
230 PM MDT TUE SEP 22 2026
TONIGHT
PARTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS THIS
EVENING, THEN MOSTLY CLEAR AFTER MIDNIGHT. CHANCE OF RAIN
30 PERCENT. LOWS 37 TO 52.
WEDNESDAY
PATCHY FOG IN THE MORNING. SUNNY. HIGHS 68 TO 83.
WEDNESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS 39 TO 54.
THURSDAY
SUNNY. HIGHS 74 TO 89.
THURSDAY NIGHT
INCREASING CLOUDS. LOWS 43 TO 58.
FRIDAY
MOSTLY SUNNY. HIGHS 65 TO 80.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN
SHOWERS IN THE EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT. AREAS
OF FOG AFTER MIDNIGHT. CHANCE OF RAIN 20 PERCENT. COLDER WITH
LOWS 32 TO 47.
SATURDAY
AREAS OF FOG IN THE MORNING. PARTLY SUNNY. COOLER
WITH HIGHS 54 TO 68.
SATURDAY NIGHT THROUGH SUNDAY NIGHT
MOSTLY CLOUDY. LOWS 32 TO
47. HIGHS 57 TO 72.
MONDAY THROUGH TUESDAY
DECREASING CLOUDS. HIGHS 56 TO 71. LOWS
29 TO 44.
TEMPERATURE
IDAHO CITY 43 82 45 89
=
IDZ028-230400-
CAMAS PRAIRIE-
230 PM MDT TUE SEP 22 2026
TONIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS THIS
EVENING, THEN MOSTLY CLEAR AFTER MIDNIGHT. AREAS OF FOG AFTER
MIDNIGHT. CHANCE OF RAIN 30 PERCENT. LOWS 38 TO 44. EAST WINDS UP
TO 10 MPH.
WEDNESDAY
AREAS OF FOG IN THE MORNING. SUNNY. HIGHS 72 TO 77.
LIGHT WINDS IN THE MORNING, BECOMING SOUTH AROUND 10 MPH IN THE
AFTERNOON.
WEDNESDAY NIGHT
DECREASING CLOUDS. LOWS 43 TO 49. EAST WINDS
10 TO 15 MPH.
THURSDAY
SUNNY. HIGHS 77 TO 82. BREEZY. EAST WINDS 10 TO
20 MPH WITH GUSTS TO 30 MPH.
THURSDAY NIGHT
INCREASING CLOUDS. LOWS 46 TO 52. BREEZY. EAST
WINDS 10 TO 20 MPH WITH GUSTS TO 30 MPH.
FRIDAY AND FRIDAY NIGHT
PARTLY CLOUDY. HIGHS 74 TO 79. LOWS
36 TO 41. BREEZY.
SATURDAY
MOSTLY SUNNY. COOLER WITH HIGHS 62 TO 67.
SATURDAY NIGHT THROUGH SUNDAY NIGHT
MOSTLY CLOUDY. LOWS 35 TO
40. HIGHS 66 TO 71.
MONDAY
MOSTLY SUNNY. HIGHS 62 TO 67.
MONDAY NIGHT AND TUESDAY
MOSTLY CLEAR. LOWS 31 TO 37. HIGHS
64 TO 69.
TEMPERATURE
FAIRFIELD 39 75 44 80
=
IDZ033-230400-
UPPER WEISER RIVER-
230 PM MDT TUE SEP 22 2026
TONIGHT
PARTLY CLOUDY THIS EVENING, THEN CLEARING. LOWS 50 TO
55. LIGHT WINDS.
WEDNESDAY
SUNNY. HIGHS 76 TO 82. LIGHT WINDS.
WEDNESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS 52 TO 57. LIGHT WINDS.
THURSDAY
SUNNY. HIGHS 84 TO 89. LIGHT WINDS IN THE MORNING,
BECOMING SOUTH UP TO 10 MPH IN THE AFTERNOON.
THURSDAY NIGHT
INCREASING CLOUDS. LOWS 57 TO 62. SOUTHEAST
WINDS UP TO 10 MPH.
FRIDAY AND FRIDAY NIGHT
PARTLY CLOUDY. HIGHS 74 TO 80. LOWS
42 TO 47.
SATURDAY THROUGH SUNDAY NIGHT
MOSTLY CLOUDY. HIGHS 62 TO 71.
LOWS 43 TO 48.
MONDAY THROUGH TUESDAY
PARTLY CLOUDY. HIGHS 65 TO 72. LOWS
42 TO 47.
TEMPERATURE
COUNCIL 51 81 54 87
CAMBRIDGE 50 82 53 88
=
ORZ064-230400-
OREGON LOWER TREASURE VALLEY-
230 PM MDT TUE SEP 22 2026 /130 PM PDT TUE SEP 22 2026/
TONIGHT
PARTLY CLOUDY THIS EVENING, THEN CLEARING. LOWS 51 TO
56. NORTHWEST WINDS UP TO 10 MPH.
WEDNESDAY
SUNNY. HIGHS 80 TO 85. NORTH WINDS UP TO 10 MPH IN
THE MORNING, BECOMING LIGHT IN THE AFTERNOON.
WEDNESDAY NIGHT
DECREASING CLOUDS. LOWS 52 TO 57. LIGHT WINDS.
THURSDAY
SUNNY. HIGHS 87 TO 92. LIGHT WINDS IN THE MORNING,
BECOMING SOUTHEAST UP TO 10 MPH WITH GUSTS TO 20 MPH IN THE
AFTERNOON.
THURSDAY NIGHT
INCREASING CLOUDS. LOWS 58 TO 63. SOUTH WINDS
UP TO 10 MPH.
FRIDAY AND FRIDAY NIGHT
PARTLY CLOUDY. NOT AS WARM. HIGHS
78 TO 83. LOWS 43 TO 48. BREEZY.
SATURDAY THROUGH SUNDAY NIGHT
MOSTLY CLOUDY. HIGHS 66 TO 74.
LOWS 43 TO 48.
MONDAY
MOSTLY SUNNY. HIGHS 70 TO 75.
MONDAY NIGHT
DECREASING CLOUDS. LOWS 41 TO 47.
TUESDAY
MOSTLY SUNNY. HIGHS 70 TO 75.
TEMPERATURE
ONTARIO 52 83 52 90
=
IDZ012-230400-
LOWER TREASURE VALLEY-
230 PM MDT TUE SEP 22 2026
TONIGHT
DECREASING CLOUDS. LOWS 51 TO 56. LIGHT WINDS.
WEDNESDAY
SUNNY. HIGHS 81 TO 86. SOUTHEAST WINDS UP TO 10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS 53 TO 58. LIGHT WINDS IN
THE EVENING, BECOMING SOUTHEAST 10 TO 15 MPH WITH GUSTS TO 25 MPH
AFTER MIDNIGHT.
THURSDAY
SUNNY. HIGHS 88 TO 93. BREEZY. SOUTHEAST WINDS 10 TO
20 MPH WITH GUSTS TO 30 MPH.
THURSDAY NIGHT
INCREASING CLOUDS. LOWS 58 TO 63. SOUTHEAST
WINDS 10 TO 15 MPH WITH GUSTS TO 25 MPH.
FRIDAY AND FRIDAY NIGHT
PARTLY CLOUDY. HIGHS 79 TO 84. LOWS
43 TO 48. BREEZY.
SATURDAY THROUGH SUNDAY NIGHT
MOSTLY CLOUDY. NOT AS WARM.
HIGHS 66 TO 74. LOWS 43 TO 48.
MONDAY
MOSTLY SUNNY. HIGHS 69 TO 74.
MONDAY NIGHT
DECREASING CLOUDS. LOWS 42 TO 47.
TUESDAY
MOSTLY SUNNY. HIGHS 70 TO 75.
TEMPERATURE
CALDWELL 52 85 55 92
=
IDZ014-230400-
UPPER TREASURE VALLEY-
230 PM MDT TUE SEP 22 2026
TONIGHT
MOSTLY CLEAR. PATCHY FOG AFTER MIDNIGHT. LOWS 49 TO
55. EAST WINDS UP TO 10 MPH WITH GUSTS TO 20 MPH.
WEDNESDAY
AREAS OF FOG IN THE MORNING. SUNNY. HIGHS 82 TO 87.
SOUTHEAST WINDS 10 TO 15 MPH WITH GUSTS TO 25 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS 52 TO 60. BREEZY. EAST WINDS 10 TO 20 MPH WITH GUSTS TO
30 MPH.
THURSDAY
SUNNY. HIGHS 88 TO 93. WINDY. SOUTHEAST WINDS 15 TO
25 MPH WITH GUSTS TO 35 MPH.
THURSDAY NIGHT
INCREASING CLOUDS. LOWS 55 TO 63. BREEZY.
SOUTHEAST WINDS 10 TO 20 MPH WITH GUSTS TO 35 MPH.
FRIDAY AND FRIDAY NIGHT
PARTLY CLOUDY. HIGHS 81 TO 86. LOWS
43 TO 48. WINDY.
SATURDAY
MOSTLY SUNNY. MUCH COOLER WITH HIGHS 66 TO 71.
SATURDAY NIGHT THROUGH SUNDAY NIGHT
MOSTLY CLOUDY. LOWS 42 TO
48. HIGHS 70 TO 75.
MONDAY
MOSTLY SUNNY. HIGHS 68 TO 73.
MONDAY NIGHT
MOSTLY CLEAR. PATCHY FOG AFTER MIDNIGHT. LOWS
41 TO 46.
TUESDAY
SUNNY. HIGHS 70 TO 75.
TEMPERATURE
BOISE 55 85 60 92
MOUNTAIN HOME 51 86 56 92
=
IDZ016-230400-
WESTERN MAGIC VALLEY-
230 PM MDT TUE SEP 22 2026
TONIGHT
PARTLY CLOUDY THIS EVENING, THEN CLEARING. LOWS 46 TO
51. EAST WINDS AROUND 10 MPH WITH GUSTS TO 20 MPH.
WEDNESDAY
PATCHY FOG IN THE MORNING. SUNNY. HIGHS 77 TO 82.
EAST WINDS UP TO 10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS 51 TO 56. EAST WINDS 10 TO
15 MPH WITH GUSTS TO 30 MPH.
THURSDAY
SUNNY. HIGHS 82 TO 87. BREEZY. EAST WINDS 10 TO
20 MPH WITH GUSTS TO 30 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS 54 TO 59. BREEZY. EAST
WINDS 10 TO 20 MPH WITH GUSTS TO 30 MPH.
FRIDAY AND FRIDAY NIGHT
PARTLY CLOUDY. HIGHS 80 TO 85. LOWS
43 TO 48. WINDY.
SATURDAY
MOSTLY SUNNY. COOLER WITH HIGHS 66 TO 71.
SATURDAY NIGHT THROUGH SUNDAY NIGHT
MOSTLY CLOUDY. LOWS 42 TO
48. HIGHS 70 TO 75.
MONDAY
MOSTLY SUNNY. HIGHS 65 TO 70.
MONDAY NIGHT AND TUESDAY
MOSTLY CLEAR. LOWS 39 TO 44. HIGHS
67 TO 72.
TEMPERATURE
JEROME 48 78 53 83
TWIN FALLS 47 79 52 84
=
IDZ029-230400-
OWYHEE MOUNTAINS-
230 PM MDT TUE SEP 22 2026
TONIGHT
PARTLY CLOUDY THIS EVENING, THEN CLEARING. LOWS 47 TO
55.
WEDNESDAY
SUNNY. HIGHS 74 TO 83.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS 53 TO 58.
THURSDAY
SUNNY. HIGHS 82 TO 88.
THURSDAY NIGHT
INCREASING CLOUDS. LOWS 54 TO 62.
FRIDAY AND FRIDAY NIGHT
PARTLY CLOUDY. NOT AS WARM. HIGHS
72 TO 77. LOWS 39 TO 46. BREEZY.
SATURDAY
MOSTLY SUNNY. COOLER WITH HIGHS 59 TO 67.
SATURDAY NIGHT THROUGH SUNDAY NIGHT
MOSTLY CLOUDY. LOWS 40 TO
47. HIGHS 63 TO 70.
MONDAY
MOSTLY SUNNY. HIGHS 62 TO 67.
MONDAY NIGHT AND TUESDAY
MOSTLY CLEAR. LOWS 38 TO 46. HIGHS
64 TO 70.
=
IDZ015-230400-
SOUTHWEST HIGHLANDS-
230 PM MDT TUE SEP 22 2026
TONIGHT
DECREASING CLOUDS. LOWS 45 TO 51.
WEDNESDAY
SUNNY. HIGHS 77 TO 83.
WEDNESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS 49 TO 55. BREEZY.
THURSDAY
SUNNY. HIGHS 82 TO 88.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS 52 TO 58. BREEZY.
FRIDAY AND FRIDAY NIGHT
PARTLY CLOUDY. HIGHS 76 TO 83. LOWS
39 TO 44. WINDY.
SATURDAY
MOSTLY SUNNY. COOLER WITH HIGHS 64 TO 70.
SATURDAY NIGHT AND SUNDAY
MOSTLY CLOUDY. LOWS 41 TO 46. HIGHS
68 TO 73.
SUNDAY NIGHT
MOSTLY CLOUDY. A SLIGHT CHANCE OF RAIN SHOWERS
AFTER MIDNIGHT. CHANCE OF RAIN 20 PERCENT. LOWS 40 TO 45.
MONDAY
MOSTLY SUNNY. HIGHS 64 TO 69.
MONDAY NIGHT AND TUESDAY
MOSTLY CLEAR. LOWS 38 TO 43. HIGHS
67 TO 72.
=
IDZ030-230400-
SOUTHERN TWIN FALLS COUNTY-
230 PM MDT TUE SEP 22 2026
TONIGHT
PARTLY CLOUDY THIS EVENING, THEN CLEARING. LOWS 45 TO
50.
WEDNESDAY
SUNNY. HIGHS 76 TO 81.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS 51 TO 56. BREEZY.
THURSDAY
SUNNY. HIGHS 81 TO 86. BREEZY.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS 55 TO 60. WINDY. SOUTH
WINDS AROUND 25 MPH AFTER MIDNIGHT. GUSTS TO 35 MPH.
FRIDAY AND FRIDAY NIGHT
PARTLY CLOUDY. HIGHS 79 TO 84. LOWS
41 TO 46. WINDY.
SATURDAY
MOSTLY SUNNY. COOLER WITH HIGHS 65 TO 70.
SATURDAY NIGHT THROUGH SUNDAY NIGHT
MOSTLY CLOUDY. LOWS 42 TO
47. HIGHS 70 TO 75.
MONDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF RAIN SHOWERS IN THE
MORNING. CHANCE OF RAIN 20 PERCENT. HIGHS 64 TO 69.
MONDAY NIGHT AND TUESDAY
MOSTLY CLEAR. LOWS 38 TO 43. HIGHS
66 TO 71.
=
ORZ062-230400-
BAKER COUNTY-
130 PM PDT TUE SEP 22 2026
TONIGHT
PARTLY CLOUDY THIS EVENING, THEN CLEARING. LOWS 38 TO
51. NORTHWEST WINDS UP TO 10 MPH WITH GUSTS TO 20 MPH.
WEDNESDAY
PATCHY FOG IN THE MORNING. SUNNY. HIGHS 74 TO 81.
LIGHT WINDS IN THE MORNING, BECOMING SOUTHEAST UP TO 10 MPH IN
THE AFTERNOON. GUSTS TO 20 MPH.
WEDNESDAY NIGHT
DECREASING CLOUDS. LOWS 41 TO 54. LIGHT WINDS.
THURSDAY
SUNNY. HIGHS 79 TO 88. LIGHT WINDS IN THE MORNING,
BECOMING SOUTHEAST 10 TO 15 MPH WITH GUSTS TO 30 MPH IN THE
AFTERNOON.
THURSDAY NIGHT
INCREASING CLOUDS. LOWS 45 TO 58. SOUTH WINDS
10 TO 15 MPH. GUSTS TO 25 MPH IN THE EVENING.
FRIDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS, MAINLY IN THE
AFTERNOON. CHANCE OF RAIN 30 PERCENT. COOLER WITH HIGHS 67 TO 77.
FRIDAY NIGHT AND SATURDAY
PARTLY CLOUDY. AREAS OF FOG THROUGH
THE DAY. LOWS 31 TO 43. HIGHS 58 TO 67.
SATURDAY NIGHT AND SUNDAY
MOSTLY CLOUDY. LOWS 33 TO 45. HIGHS
62 TO 70.
SUNDAY NIGHT
DECREASING CLOUDS. AREAS OF FOG AFTER MIDNIGHT.
LOWS 32 TO 45.
MONDAY THROUGH TUESDAY
AREAS OF FOG IN THE MORNING. AREAS OF
FOG THROUGH THE DAY. PARTLY CLOUDY. HIGHS 62 TO 71. LOWS 32 TO
45.
TEMPERATURE
BAKER CITY 38 77 41 84
=
ORZ061-230400-
HARNEY COUNTY-
130 PM PDT TUE SEP 22 2026
TONIGHT
DECREASING CLOUDS. LOWS 38 TO 48. NORTHWEST WINDS
10 TO 15 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS 73 TO 82. LIGHT WINDS IN THE
MORNING, BECOMING SOUTH UP TO 10 MPH IN THE AFTERNOON.
WEDNESDAY NIGHT
MOSTLY CLOUDY. LOWS 40 TO 52. NORTH WINDS UP
TO 10 MPH.
THURSDAY
MOSTLY SUNNY. HIGHS 79 TO 87. LIGHT WINDS IN THE
MORNING, BECOMING SOUTH 10 TO 15 MPH WITH GUSTS TO 30 MPH IN THE
AFTERNOON.
THURSDAY NIGHT
INCREASING CLOUDS. LOWS 43 TO 53. SOUTHWEST
WINDS 10 TO 15 MPH WITH GUSTS TO 30 MPH.
FRIDAY
MOSTLY SUNNY. MUCH COOLER WITH HIGHS 63 TO 70. BREEZY.
FRIDAY NIGHT
PARTLY CLOUDY. AREAS OF FOG AFTER MIDNIGHT.
COLDER WITH LOWS 29 TO 39. BREEZY.
SATURDAY
AREAS OF FOG IN THE MORNING. PARTLY SUNNY. HIGHS
60 TO 66.
SATURDAY NIGHT THROUGH SUNDAY NIGHT
MOSTLY CLOUDY. LOWS 31 TO
44. HIGHS 62 TO 68.
MONDAY
MOSTLY SUNNY. HIGHS 62 TO 67.
MONDAY NIGHT
MOSTLY CLEAR. LOWS 31 TO 41.
TUESDAY
MOSTLY SUNNY. HIGHS 64 TO 70.
TEMPERATURE
BURNS 38 79 40 85
=
ORZ063-230400-
MALHEUR COUNTY-
230 PM MDT TUE SEP 22 2026 /130 PM PDT TUE SEP 22 2026/
TONIGHT
PARTLY CLOUDY THIS EVENING, THEN CLEARING. LOWS 45 TO
54. NORTH WINDS UP TO 10 MPH WITH GUSTS TO 20 MPH.
WEDNESDAY
SUNNY. HIGHS 77 TO 85. NORTHEAST WINDS UP TO 10 MPH.
WEDNESDAY NIGHT
DECREASING CLOUDS. LOWS 47 TO 56. NORTHEAST
WINDS UP TO 10 MPH WITH GUSTS TO 25 MPH.
THURSDAY
SUNNY. HIGHS 84 TO 91. SOUTH WINDS 10 TO 15 MPH WITH
GUSTS TO 25 MPH.
THURSDAY NIGHT
INCREASING CLOUDS. LOWS 51 TO 60. SOUTHWEST
WINDS 10 TO 15 MPH. GUSTS TO 30 MPH IN THE EVENING.
FRIDAY
MOSTLY SUNNY. NOT AS WARM WITH HIGHS 71 TO 79. BREEZY.
FRIDAY NIGHT
PARTLY CLOUDY. PATCHY FOG AFTER MIDNIGHT. MUCH
COLDER WITH LOWS 36 TO 45. BREEZY.
SATURDAY
AREAS OF FOG IN THE MORNING. MOSTLY SUNNY. COOLER
WITH HIGHS 62 TO 69.
SATURDAY NIGHT THROUGH SUNDAY NIGHT
MOSTLY CLOUDY. LOWS 37 TO
47. HIGHS 66 TO 72.
MONDAY
MOSTLY SUNNY. HIGHS 66 TO 72.
MONDAY NIGHT AND TUESDAY
MOSTLY CLEAR. LOWS 35 TO 45. HIGHS
67 TO 73.
=
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