172
FPUS55 KBOI 292031
ZFPBOI
ZONE FORECASTS FOR SOUTHWEST IDAHO/SOUTHEAST OREGON
NATIONAL WEATHER SERVICE BOISE ID
230 PM MDT TUE SEP 29 2026
SPOT TEMPERATURES ARE FOR TONIGHT, WEDNESDAY, WEDNESDAY NIGHT,
AND THURSDAY.
IDZ011-300400-
WEST CENTRAL MOUNTAINS-
230 PM MDT TUE SEP 29 2026
TONIGHT
MOSTLY CLEAR. AREAS OF FOG AFTER MIDNIGHT. LOWS 37 TO
47.
WEDNESDAY
AREAS OF FOG IN THE MORNING. SUNNY. HIGHS 61 TO 74.
WEDNESDAY NIGHT
MOSTLY CLEAR. PATCHY FOG IN THE EVENING. AREAS
OF FOG AFTER MIDNIGHT. LOWS 36 TO 47.
THURSDAY
AREAS OF FOG IN THE MORNING. SUNNY. HIGHS 62 TO 75.
THURSDAY NIGHT
PARTLY CLOUDY. AREAS OF FOG AFTER MIDNIGHT.
LOWS 40 TO 50.
FRIDAY THROUGH SATURDAY
AREAS OF FOG IN THE MORNING. AREAS OF
FOG THROUGH THE DAY. MOSTLY CLEAR. HIGHS 64 TO 79. LOWS 40 TO 50.
SATURDAY NIGHT
DECREASING CLOUDS. LOWS 42 TO 52.
SUNDAY
SUNNY. HIGHS 69 TO 82.
SUNDAY NIGHT AND MONDAY
PARTLY CLOUDY. LOWS 45 TO 55. HIGHS
68 TO 81.
MONDAY NIGHT AND TUESDAY
MOSTLY CLEAR. LOWS 43 TO 53. HIGHS
64 TO 77.
TEMPERATURE
MCCALL 37 68 36 70
=
IDZ013-300400-
BOISE MOUNTAINS-
230 PM MDT TUE SEP 29 2026
TONIGHT
MOSTLY CLEAR. LOWS 37 TO 50.
WEDNESDAY
SUNNY. HIGHS 63 TO 78.
WEDNESDAY NIGHT
MOSTLY CLEAR. PATCHY FOG AFTER MIDNIGHT. LOWS
36 TO 50.
THURSDAY
AREAS OF FOG IN THE MORNING. SUNNY. HIGHS 65 TO 80.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS 36 TO 51.
FRIDAY THROUGH SATURDAY
MOSTLY CLEAR. HIGHS 69 TO 84. LOWS
38 TO 53.
SATURDAY NIGHT THROUGH MONDAY
PARTLY CLOUDY. LOWS 40 TO 55.
HIGHS 71 TO 86.
MONDAY NIGHT AND TUESDAY
MOSTLY CLEAR. LOWS 39 TO 54. HIGHS
66 TO 81.
TEMPERATURE
IDAHO CITY 37 76 37 78
=
IDZ028-300400-
CAMAS PRAIRIE-
230 PM MDT TUE SEP 29 2026
TONIGHT
MOSTLY CLEAR. LOWS 36 TO 42. WEST WINDS 10 TO 15 MPH.
GUSTS TO 30 MPH THIS EVENING.
WEDNESDAY
SUNNY. HIGHS 73 TO 78. BREEZY. WEST WINDS UP TO
10 MPH IN THE MORNING, INCREASING TO 10 TO 20 MPH WITH GUSTS TO
30 MPH IN THE AFTERNOON.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS 35 TO 41. BREEZY. NORTHWEST
WINDS 10 TO 20 MPH WITH GUSTS TO 30 MPH IN THE EVENING,
DECREASING TO AROUND 10 MPH AFTER MIDNIGHT.
THURSDAY
SUNNY. HIGHS 72 TO 77. LIGHT WINDS IN THE MORNING,
BECOMING SOUTHWEST 10 TO 15 MPH WITH GUSTS TO 25 MPH IN THE
AFTERNOON.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS 39 TO 44. WEST WINDS 10 TO
15 MPH WITH GUSTS TO 25 MPH IN THE EVENING, BECOMING LIGHT AFTER
MIDNIGHT.
FRIDAY THROUGH SATURDAY
MOSTLY CLEAR. HIGHS 75 TO 80. LOWS
42 TO 47.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS 43 TO 48.
SUNDAY
SUNNY. HIGHS 77 TO 82.
SUNDAY NIGHT AND MONDAY
PARTLY CLOUDY. LOWS 45 TO 50. HIGHS
76 TO 81.
MONDAY NIGHT AND TUESDAY
MOSTLY CLEAR. LOWS 42 TO 48. HIGHS
73 TO 78.
TEMPERATURE
FAIRFIELD 37 76 36 76
=
IDZ033-300400-
UPPER WEISER RIVER-
230 PM MDT TUE SEP 29 2026
TONIGHT
MOSTLY CLEAR. LOWS 45 TO 50. LIGHT WINDS.
WEDNESDAY
AREAS OF FOG IN THE MORNING. SUNNY. HIGHS 72 TO 79.
NORTH WINDS UP TO 10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. PATCHY FOG AFTER MIDNIGHT. LOWS
44 TO 50. NORTH WINDS UP TO 10 MPH WITH GUSTS TO 20 MPH.
THURSDAY
AREAS OF FOG IN THE MORNING. SUNNY. HIGHS 73 TO 80.
NORTH WINDS UP TO 10 MPH IN THE MORNING, BECOMING LIGHT IN THE
AFTERNOON.
THURSDAY NIGHT
DECREASING CLOUDS. LOWS 49 TO 54. LIGHT WINDS.
FRIDAY THROUGH SATURDAY
MOSTLY CLEAR. HIGHS 75 TO 83. LOWS
50 TO 55.
SATURDAY NIGHT THROUGH MONDAY
PARTLY CLOUDY. LOWS 52 TO 59.
HIGHS 77 TO 84.
MONDAY NIGHT AND TUESDAY
MOSTLY CLEAR. LOWS 52 TO 57. HIGHS
74 TO 81.
TEMPERATURE
COUNCIL 46 77 46 79
CAMBRIDGE 45 78 44 80
=
ORZ064-300400-
OREGON LOWER TREASURE VALLEY-
230 PM MDT TUE SEP 29 2026 /130 PM PDT TUE SEP 29 2026/
TONIGHT
PATCHY SMOKE THIS EVENING. MOSTLY CLEAR. LOWS 47 TO
52. NORTH WINDS UP TO 10 MPH.
WEDNESDAY
SUNNY. HIGHS 77 TO 82. NORTHWEST WINDS UP TO 10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS 46 TO 51. NORTHWEST WINDS
UP TO 10 MPH WITH GUSTS TO 20 MPH.
THURSDAY
AREAS OF FOG IN THE MORNING. SUNNY. HIGHS 77 TO 82.
LIGHT WINDS.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS 47 TO 54. LIGHT WINDS.
FRIDAY THROUGH SATURDAY
MOSTLY CLEAR. HIGHS 79 TO 84. LOWS
50 TO 56.
SATURDAY NIGHT THROUGH MONDAY
PARTLY CLOUDY. LOWS 48 TO 57.
HIGHS 80 TO 86.
MONDAY NIGHT AND TUESDAY
MOSTLY CLEAR. LOWS 49 TO 56. HIGHS
79 TO 84.
TEMPERATURE
ONTARIO 47 79 46 80
=
IDZ012-300400-
LOWER TREASURE VALLEY-
230 PM MDT TUE SEP 29 2026
TONIGHT
MOSTLY CLEAR. LOWS 46 TO 51. NORTH WINDS UP TO 10 MPH.
WEDNESDAY
PATCHY FOG IN THE MORNING. SUNNY. HIGHS 75 TO 80.
NORTHWEST WINDS 10 TO 15 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. AREAS OF FOG AFTER MIDNIGHT.
LOWS 45 TO 50. NORTHWEST WINDS UP TO 10 MPH.
THURSDAY
AREAS OF FOG IN THE MORNING. SUNNY. HIGHS 77 TO 82.
NORTHWEST WINDS UP TO 10 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS 49 TO 54. NORTHWEST WINDS UP
TO 10 MPH.
FRIDAY THROUGH SATURDAY
MOSTLY CLEAR. HIGHS 79 TO 84. LOWS
51 TO 56.
SATURDAY NIGHT THROUGH MONDAY
PARTLY CLOUDY. LOWS 50 TO 57.
HIGHS 80 TO 86.
MONDAY NIGHT AND TUESDAY
MOSTLY CLEAR. LOWS 51 TO 56. HIGHS
78 TO 83.
TEMPERATURE
CALDWELL 46 79 45 80
=
IDZ014-300400-
UPPER TREASURE VALLEY-
230 PM MDT TUE SEP 29 2026
TONIGHT
MOSTLY CLEAR. LOWS 45 TO 50. NORTHWEST WINDS 10 TO
15 MPH. GUSTS TO 30 MPH THIS EVENING, DECREASING TO 20 MPH AFTER
MIDNIGHT.
WEDNESDAY
SUNNY. HIGHS 75 TO 80. WINDY. NORTHWEST WINDS 10 TO
15 MPH WITH GUSTS TO 25 MPH IN THE MORNING, INCREASING TO 15 TO
25 MPH WITH GUSTS TO 35 MPH IN THE AFTERNOON.
WEDNESDAY NIGHT
MOSTLY CLEAR. AREAS OF FOG AFTER MIDNIGHT.
LOWS 43 TO 49. BREEZY. NORTHWEST WINDS 10 TO 20 MPH WITH GUSTS TO
30 MPH IN THE EVENING, DECREASING TO AROUND 10 MPH WITH GUSTS TO
20 MPH AFTER MIDNIGHT.
THURSDAY
AREAS OF FOG IN THE MORNING. SUNNY. HIGHS 77 TO 82.
NORTHWEST WINDS UP TO 10 MPH WITH GUSTS TO 20 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS 47 TO 52. NORTHWEST WINDS
10 TO 15 MPH IN THE EVENING, BECOMING LIGHT AFTER MIDNIGHT.
FRIDAY THROUGH SATURDAY
MOSTLY CLEAR. HIGHS 79 TO 85. LOWS
50 TO 55.
SATURDAY NIGHT THROUGH MONDAY
PARTLY CLOUDY. LOWS 49 TO 58.
HIGHS 82 TO 88.
MONDAY NIGHT AND TUESDAY
MOSTLY CLEAR. LOWS 50 TO 56. HIGHS
79 TO 84.
TEMPERATURE
BOISE 48 78 49 79
MOUNTAIN HOME 46 78 45 80
=
IDZ016-300400-
WESTERN MAGIC VALLEY-
230 PM MDT TUE SEP 29 2026
TONIGHT
MOSTLY CLEAR. LOWS 44 TO 49. BREEZY. SOUTHWEST WINDS
10 TO 20 MPH WITH GUSTS TO 30 MPH.
WEDNESDAY
SUNNY. HIGHS 72 TO 77. BREEZY. WEST WINDS 10 TO
20 MPH WITH GUSTS TO 35 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS 45 TO 50. BREEZY. SOUTHWEST
WINDS 10 TO 20 MPH WITH GUSTS TO 30 MPH.
THURSDAY
SUNNY. HIGHS 74 TO 79. WEST WINDS AROUND 10 MPH WITH
GUSTS TO 20 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS 46 TO 51. SOUTHWEST WINDS
10 TO 15 MPH.
FRIDAY THROUGH SATURDAY
MOSTLY CLEAR. HIGHS 77 TO 83. LOWS
49 TO 54.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS 49 TO 54.
SUNDAY
SUNNY. HIGHS 81 TO 86.
SUNDAY NIGHT AND MONDAY
PARTLY CLOUDY. LOWS 51 TO 56. HIGHS
80 TO 85.
MONDAY NIGHT AND TUESDAY
MOSTLY CLEAR. LOWS 50 TO 55. HIGHS
76 TO 81.
TEMPERATURE
JEROME 46 73 46 74
TWIN FALLS 48 73 49 75
=
IDZ029-300400-
OWYHEE MOUNTAINS-
230 PM MDT TUE SEP 29 2026
TONIGHT
MOSTLY CLEAR. LOWS 41 TO 51.
WEDNESDAY
SUNNY. HIGHS 69 TO 75.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS 41 TO 51.
THURSDAY
SUNNY. HIGHS 69 TO 78.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS 46 TO 55.
FRIDAY THROUGH SATURDAY
MOSTLY CLEAR. HIGHS 72 TO 82. LOWS
49 TO 56.
SATURDAY NIGHT THROUGH MONDAY
PARTLY CLOUDY. LOWS 49 TO 58.
HIGHS 75 TO 84.
MONDAY NIGHT AND TUESDAY
MOSTLY CLEAR. LOWS 49 TO 58. HIGHS
73 TO 79.
=
IDZ015-300400-
SOUTHWEST HIGHLANDS-
230 PM MDT TUE SEP 29 2026
TONIGHT
MOSTLY CLEAR. LOWS 41 TO 47.
WEDNESDAY
SUNNY. HIGHS 71 TO 76. BREEZY.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS 41 TO 46.
THURSDAY
SUNNY. HIGHS 74 TO 79.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS 45 TO 51.
FRIDAY AND FRIDAY NIGHT
MOSTLY CLEAR. HIGHS 79 TO 84. LOWS
48 TO 54.
SATURDAY THROUGH MONDAY
PARTLY CLOUDY. HIGHS 76 TO 84. LOWS
49 TO 56.
MONDAY NIGHT AND TUESDAY
MOSTLY CLEAR. LOWS 47 TO 54. HIGHS
76 TO 81.
=
IDZ030-300400-
SOUTHERN TWIN FALLS COUNTY-
230 PM MDT TUE SEP 29 2026
TONIGHT
MOSTLY CLEAR. LOWS 43 TO 48.
WEDNESDAY
SUNNY. HIGHS 70 TO 75. BREEZY.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS 42 TO 48.
THURSDAY
SUNNY. HIGHS 73 TO 78.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS 47 TO 52.
FRIDAY THROUGH SATURDAY
MOSTLY CLEAR. HIGHS 77 TO 83. LOWS
50 TO 55.
SATURDAY NIGHT THROUGH MONDAY NIGHT
PARTLY CLOUDY. LOWS 50 TO
58. HIGHS 79 TO 85.
TUESDAY
SUNNY. HIGHS 76 TO 81.
=
ORZ062-300400-
BAKER COUNTY-
130 PM PDT TUE SEP 29 2026
TONIGHT
MOSTLY CLEAR. AREAS OF SMOKE THIS EVENING. AREAS OF
FOG AFTER MIDNIGHT. LOWS 36 TO 47. NORTHWEST WINDS UP TO 10 MPH.
WEDNESDAY
AREAS OF FOG IN THE MORNING. SUNNY. HIGHS 68 TO 75.
NORTHWEST WINDS 10 TO 15 MPH. GUSTS TO 25 MPH IN THE AFTERNOON.
WEDNESDAY NIGHT
MOSTLY CLEAR. AREAS OF FOG. LOWS 37 TO 47.
NORTHWEST WINDS 10 TO 15 MPH IN THE EVENING, BECOMING LIGHT AFTER
MIDNIGHT.
THURSDAY
AREAS OF FOG IN THE MORNING. SUNNY. HIGHS 71 TO 78.
LIGHT WINDS.
THURSDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
PATCHY FOG AFTER MIDNIGHT. LOWS 39 TO 52. LIGHT WINDS.
FRIDAY
AREAS OF FOG IN THE MORNING. SUNNY. HIGHS 74 TO 81.
FRIDAY NIGHT
MOSTLY CLEAR. PATCHY FOG AFTER MIDNIGHT. LOWS
40 TO 53.
SATURDAY
AREAS OF FOG IN THE MORNING. SUNNY. HIGHS 74 TO 81.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS 41 TO 55.
SUNDAY
SUNNY. HIGHS 77 TO 83.
SUNDAY NIGHT AND MONDAY
PARTLY CLOUDY. LOWS 44 TO 57. HIGHS
77 TO 84.
MONDAY NIGHT AND TUESDAY
MOSTLY CLEAR. LOWS 41 TO 54. HIGHS
74 TO 80.
TEMPERATURE
BAKER CITY 36 70 37 74
=
ORZ061-300400-
HARNEY COUNTY-
130 PM PDT TUE SEP 29 2026
TONIGHT
MOSTLY CLEAR. LOWS 33 TO 44. NORTHWEST WINDS UP TO
10 MPH.
WEDNESDAY
AREAS OF FOG IN THE MORNING. SUNNY. HIGHS 70 TO 77.
NORTHWEST WINDS UP TO 10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. PATCHY FOG AFTER MIDNIGHT. LOWS
36 TO 45. NORTHWEST WINDS UP TO 10 MPH.
THURSDAY
AREAS OF FOG IN THE MORNING. SUNNY. HIGHS 72 TO 80.
LIGHT WINDS.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS 39 TO 50. LIGHT WINDS.
FRIDAY THROUGH MONDAY
PARTLY CLOUDY. HIGHS 75 TO 85. LOWS
40 TO 53.
MONDAY NIGHT AND TUESDAY
MOSTLY CLEAR. LOWS 39 TO 50. HIGHS
73 TO 80.
TEMPERATURE
BURNS 33 76 36 78
=
ORZ063-300400-
MALHEUR COUNTY-
230 PM MDT TUE SEP 29 2026 /130 PM PDT TUE SEP 29 2026/
TONIGHT
MOSTLY CLEAR. PATCHY SMOKE. LOWS 40 TO 50. NORTHWEST
WINDS UP TO 10 MPH.
WEDNESDAY
AREAS OF FOG IN THE MORNING. SUNNY. HIGHS 73 TO 79.
NORTHWEST WINDS UP TO 10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. AREAS OF FOG AFTER MIDNIGHT.
LOWS 40 TO 50. NORTHWEST WINDS UP TO 10 MPH.
THURSDAY
AREAS OF FOG IN THE MORNING. SUNNY. HIGHS 75 TO 81.
LIGHT WINDS.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS 44 TO 54. LIGHT WINDS.
FRIDAY
SUNNY. HIGHS 77 TO 84.
FRIDAY NIGHT THROUGH MONDAY
PARTLY CLOUDY. LOWS 45 TO 55.
HIGHS 76 TO 85.
MONDAY NIGHT AND TUESDAY
MOSTLY CLEAR. LOWS 46 TO 56. HIGHS
77 TO 82.
=
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