380
FPUS55 KBOI 280831
ZFPBOI
ZONE FORECASTS FOR SOUTHWEST IDAHO/SOUTHEAST OREGON
NATIONAL WEATHER SERVICE BOISE ID
230 AM MDT MON SEP 28 2026
SPOT TEMPERATURES ARE FOR TODAY, TONIGHT, AND TUESDAY.
IDZ011-281600-
WEST CENTRAL MOUNTAINS-
230 AM MDT MON SEP 28 2026
TODAY
AREAS OF FOG THIS MORNING. SUNNY. HIGHS 59 TO 72.
TONIGHT
MOSTLY CLEAR. AREAS OF FOG AFTER MIDNIGHT. LOWS 34 TO
44.
TUESDAY
AREAS OF FOG IN THE MORNING. SUNNY. HIGHS 61 TO 73.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 38 TO 48.
WEDNESDAY
PATCHY FOG IN THE MORNING. SUNNY. HIGHS 61 TO 74.
WEDNESDAY NIGHT AND THURSDAY
MOSTLY CLEAR. AREAS OF FOG
THROUGH THE DAY. LOWS 37 TO 47. HIGHS 63 TO 76.
THURSDAY NIGHT
INCREASING CLOUDS. LOWS 40 TO 50.
FRIDAY
MOSTLY SUNNY. HIGHS 64 TO 76.
FRIDAY NIGHT
PARTLY CLOUDY. PATCHY FOG AFTER MIDNIGHT. LOWS
40 TO 50.
SATURDAY
PATCHY FOG IN THE MORNING. SUNNY. HIGHS 64 TO 76.
SATURDAY NIGHT AND SUNDAY
MOSTLY CLEAR. AREAS OF FOG THROUGH
THE DAY. LOWS 39 TO 49. HIGHS 65 TO 77.
TEMPERATURE
MCCALL 66 35 67
=
IDZ013-281600-
BOISE MOUNTAINS-
230 AM MDT MON SEP 28 2026
TODAY
PARTLY SUNNY THIS MORNING, THEN CLEARING. HIGHS 60 TO
75.
TONIGHT
MOSTLY CLEAR. LOWS 29 TO 44.
TUESDAY
SUNNY. HIGHS 61 TO 76.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 33 TO 48.
WEDNESDAY
SUNNY. HIGHS 63 TO 78.
WEDNESDAY NIGHT
CLEAR. LOWS 32 TO 47.
THURSDAY AND THURSDAY NIGHT
MOSTLY CLEAR. HIGHS 66 TO 81. LOWS
35 TO 50.
FRIDAY AND FRIDAY NIGHT
PARTLY CLOUDY. HIGHS 67 TO 82. LOWS
36 TO 51.
SATURDAY THROUGH SUNDAY
MOSTLY CLEAR. HIGHS 67 TO 81. LOWS
34 TO 49.
TEMPERATURE
IDAHO CITY 73 36 74
=
IDZ028-281600-
CAMAS PRAIRIE-
230 AM MDT MON SEP 28 2026
TODAY
PARTLY CLOUDY WITH ISOLATED RAIN SHOWERS THIS MORNING,
THEN SUNNY THIS AFTERNOON. CHANCE OF RAIN 20 PERCENT. HIGHS 67 TO
72. LIGHT WINDS THIS MORNING, BECOMING SOUTHWEST 10 TO 15 MPH
WITH GUSTS TO 25 MPH THIS AFTERNOON.
TONIGHT
MOSTLY CLEAR. LOWS 34 TO 39. NORTHWEST WINDS 10 TO
15 MPH. GUSTS TO 25 MPH IN THE EVENING.
TUESDAY
SUNNY. HIGHS 70 TO 75. LIGHT WINDS IN THE MORNING,
BECOMING WEST 10 TO 15 MPH WITH GUSTS TO 30 MPH IN THE AFTERNOON.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 37 TO 42. NORTHWEST WINDS
10 TO 15 MPH WITH GUSTS TO 30 MPH.
WEDNESDAY
SUNNY. HIGHS 72 TO 77. BREEZY. NORTHWEST WINDS 10 TO
20 MPH. GUSTS TO 30 MPH IN THE AFTERNOON.
WEDNESDAY NIGHT AND THURSDAY
CLEAR. LOWS 36 TO 41. HIGHS 72 TO
77.
THURSDAY NIGHT AND FRIDAY
MOSTLY CLEAR. LOWS 39 TO 44. HIGHS
74 TO 79.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS 40 TO 45.
SATURDAY THROUGH SUNDAY
MOSTLY CLEAR. HIGHS 71 TO 77. LOWS
38 TO 43.
TEMPERATURE
FAIRFIELD 71 34 74
=
IDZ033-281600-
UPPER WEISER RIVER-
230 AM MDT MON SEP 28 2026
TODAY
SUNNY. HIGHS 70 TO 77. NORTH WINDS UP TO 10 MPH WITH
GUSTS TO 20 MPH.
TONIGHT
MOSTLY CLEAR. LOWS 42 TO 47. NORTH WINDS UP TO 10 MPH.
TUESDAY
SUNNY. HIGHS 70 TO 77. LIGHT WINDS.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 46 TO 51. LIGHT WINDS.
WEDNESDAY
SUNNY. HIGHS 72 TO 79. NORTH WINDS UP TO 10 MPH.
WEDNESDAY NIGHT THROUGH THURSDAY NIGHT
MOSTLY CLEAR. LOWS
45 TO 53. HIGHS 73 TO 80.
FRIDAY AND FRIDAY NIGHT
PARTLY CLOUDY. HIGHS 74 TO 80. LOWS
48 TO 53.
SATURDAY THROUGH SUNDAY
MOSTLY CLEAR. HIGHS 73 TO 81. LOWS
47 TO 52.
TEMPERATURE
COUNCIL 76 43 76
CAMBRIDGE 77 42 77
=
ORZ064-281600-
OREGON LOWER TREASURE VALLEY-
230 AM MDT MON SEP 28 2026 /130 AM PDT MON SEP 28 2026/
TODAY
SUNNY. HIGHS 75 TO 80. NORTHWEST WINDS UP TO 10 MPH WITH
GUSTS TO 20 MPH.
TONIGHT
MOSTLY CLEAR. LOWS 42 TO 48. NORTHWEST WINDS UP TO
10 MPH WITH GUSTS TO 20 MPH.
TUESDAY
SUNNY. HIGHS 77 TO 82. LIGHT WINDS.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 46 TO 52. NORTHWEST WINDS UP
TO 10 MPH.
WEDNESDAY
SUNNY. HIGHS 76 TO 81. NORTHWEST WINDS UP TO 10 MPH.
WEDNESDAY NIGHT THROUGH THURSDAY NIGHT
MOSTLY CLEAR. LOWS
44 TO 52. HIGHS 77 TO 82.
FRIDAY AND FRIDAY NIGHT
PARTLY CLOUDY. HIGHS 77 TO 82. LOWS
47 TO 53.
SATURDAY THROUGH SUNDAY
MOSTLY CLEAR. HIGHS 76 TO 82. LOWS
45 TO 51.
TEMPERATURE
ONTARIO 78 42 78
=
IDZ012-281600-
LOWER TREASURE VALLEY-
230 AM MDT MON SEP 28 2026
TODAY
SUNNY. HIGHS 74 TO 79. NORTHWEST WINDS 10 TO 15 MPH WITH
GUSTS TO 25 MPH.
TONIGHT
MOSTLY CLEAR. LOWS 43 TO 48. NORTHWEST WINDS 10 TO
15 MPH.
TUESDAY
SUNNY. HIGHS 74 TO 79. LIGHT WINDS IN THE MORNING,
BECOMING NORTHWEST 10 TO 15 MPH IN THE AFTERNOON.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 47 TO 52. NORTHWEST WINDS UP
TO 10 MPH. GUSTS TO 20 MPH IN THE EVENING.
WEDNESDAY
SUNNY. HIGHS 76 TO 81. NORTHWEST WINDS 10 TO 15 MPH.
WEDNESDAY NIGHT
CLEAR. LOWS 45 TO 50.
THURSDAY AND THURSDAY NIGHT
MOSTLY CLEAR. HIGHS 77 TO 82. LOWS
47 TO 52.
FRIDAY AND FRIDAY NIGHT
PARTLY CLOUDY. HIGHS 78 TO 83. LOWS
48 TO 53.
SATURDAY THROUGH SUNDAY
MOSTLY CLEAR. HIGHS 76 TO 82. LOWS
47 TO 52.
TEMPERATURE
CALDWELL 77 44 77
=
IDZ014-281600-
UPPER TREASURE VALLEY-
230 AM MDT MON SEP 28 2026
TODAY
PARTLY SUNNY THIS MORNING, THEN CLEARING. HIGHS 72 TO
77. BREEZY. NORTHWEST WINDS 10 TO 20 MPH WITH GUSTS TO 30 MPH.
TONIGHT
MOSTLY CLEAR. LOWS 43 TO 48. BREEZY. NORTHWEST WINDS
10 TO 20 MPH WITH GUSTS TO 30 MPH.
TUESDAY
SUNNY. HIGHS 73 TO 78. BREEZY. NORTHWEST WINDS 10 TO
20 MPH. GUSTS TO 35 MPH IN THE AFTERNOON.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 46 TO 52. BREEZY. NORTHWEST
WINDS 10 TO 20 MPH. GUSTS TO 35 MPH IN THE EVENING, DECREASING TO
25 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
CLEAR. LOWS 44 TO 51.
THURSDAY AND THURSDAY NIGHT
MOSTLY CLEAR. HIGHS 78 TO 83. LOWS
46 TO 54.
FRIDAY AND FRIDAY NIGHT
PARTLY CLOUDY. HIGHS 80 TO 85. LOWS
47 TO 55.
SATURDAY THROUGH SUNDAY
MOSTLY CLEAR. HIGHS 75 TO 83. LOWS
45 TO 53.
TEMPERATURE
BOISE 74 48 75
MOUNTAIN HOME 74 45 76
=
IDZ016-281600-
WESTERN MAGIC VALLEY-
230 AM MDT MON SEP 28 2026
TODAY
PARTLY SUNNY THIS MORNING, THEN CLEARING. HIGHS 68 TO
73. WEST WINDS 10 TO 15 MPH WITH GUSTS TO 30 MPH.
TONIGHT
MOSTLY CLEAR. LOWS 43 TO 48. BREEZY. WEST WINDS 10 TO
20 MPH WITH GUSTS TO 30 MPH.
TUESDAY
SUNNY. HIGHS 70 TO 75. BREEZY. WEST WINDS 10 TO 20 MPH
WITH GUSTS TO 30 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 46 TO 51. BREEZY. WEST WINDS
10 TO 20 MPH WITH GUSTS TO 35 MPH.
WEDNESDAY
SUNNY. HIGHS 72 TO 77. WINDY. WEST WINDS 15 TO
25 MPH WITH GUSTS TO 35 MPH.
WEDNESDAY NIGHT AND THURSDAY
CLEAR. LOWS 43 TO 48. HIGHS 75 TO
80. BREEZY.
THURSDAY NIGHT AND FRIDAY
MOSTLY CLEAR. LOWS 46 TO 51. HIGHS
78 TO 83.
FRIDAY NIGHT AND SATURDAY
PARTLY CLOUDY. LOWS 47 TO 52. HIGHS
73 TO 78.
SATURDAY NIGHT AND SUNDAY
MOSTLY CLEAR. LOWS 45 TO 50. HIGHS
76 TO 81.
TEMPERATURE
JEROME 69 46 70
TWIN FALLS 69 45 70
=
IDZ029-281600-
OWYHEE MOUNTAINS-
230 AM MDT MON SEP 28 2026
TODAY
PARTLY SUNNY THIS MORNING, THEN CLEARING. HIGHS 66 TO
71.
TONIGHT
MOSTLY CLEAR. LOWS 39 TO 49.
TUESDAY
SUNNY. HIGHS 69 TO 74.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 43 TO 53.
WEDNESDAY
SUNNY. HIGHS 69 TO 74.
WEDNESDAY NIGHT
CLEAR. LOWS 42 TO 51.
THURSDAY AND THURSDAY NIGHT
MOSTLY CLEAR. HIGHS 71 TO 80. LOWS
47 TO 53.
FRIDAY AND FRIDAY NIGHT
PARTLY CLOUDY. HIGHS 72 TO 80. LOWS
46 TO 53.
SATURDAY THROUGH SUNDAY
MOSTLY CLEAR. HIGHS 70 TO 80. LOWS
44 TO 51.
=
IDZ015-281600-
SOUTHWEST HIGHLANDS-
230 AM MDT MON SEP 28 2026
TODAY
PARTLY SUNNY THIS MORNING, THEN CLEARING. HIGHS 64 TO
70. BREEZY.
TONIGHT
MOSTLY CLEAR. LOWS 37 TO 45. BREEZY.
TUESDAY
SUNNY. HIGHS 69 TO 74. BREEZY.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 40 TO 48.
WEDNESDAY
SUNNY. HIGHS 71 TO 76. BREEZY.
WEDNESDAY NIGHT
CLEAR. LOWS 40 TO 46.
THURSDAY AND THURSDAY NIGHT
MOSTLY CLEAR. HIGHS 76 TO 81. LOWS
45 TO 50.
FRIDAY THROUGH SATURDAY
PARTLY CLOUDY. HIGHS 73 TO 83. LOWS
45 TO 51.
SATURDAY NIGHT AND SUNDAY
MOSTLY CLEAR. LOWS 43 TO 48. HIGHS
76 TO 81.
=
IDZ030-281600-
SOUTHERN TWIN FALLS COUNTY-
230 AM MDT MON SEP 28 2026
TODAY
PARTLY SUNNY THIS MORNING, THEN CLEARING. HIGHS 65 TO
70.
TONIGHT
MOSTLY CLEAR. LOWS 42 TO 47.
TUESDAY
SUNNY. HIGHS 68 TO 73.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 45 TO 50. BREEZY.
WEDNESDAY
SUNNY. HIGHS 69 TO 74. BREEZY.
WEDNESDAY NIGHT
CLEAR. LOWS 42 TO 47.
THURSDAY THROUGH FRIDAY
MOSTLY CLEAR. HIGHS 75 TO 83. LOWS
47 TO 52.
FRIDAY NIGHT AND SATURDAY
PARTLY CLOUDY. LOWS 48 TO 53. HIGHS
73 TO 78.
SATURDAY NIGHT AND SUNDAY
MOSTLY CLEAR. LOWS 44 TO 49. HIGHS
75 TO 80.
=
ORZ062-281600-
BAKER COUNTY-
130 AM PDT MON SEP 28 2026
TODAY
AREAS OF FOG THIS MORNING. SUNNY. HIGHS 67 TO 74.
NORTHWEST WINDS 10 TO 15 MPH. GUSTS TO 25 MPH THIS AFTERNOON.
TONIGHT
MOSTLY CLEAR. LOWS 31 TO 45. NORTHWEST WINDS 10 TO
15 MPH. GUSTS TO 25 MPH IN THE EVENING.
TUESDAY
SUNNY. HIGHS 70 TO 77. NORTHWEST WINDS UP TO 10 MPH.
GUSTS TO 20 MPH IN THE AFTERNOON.
TUESDAY NIGHT
DECREASING CLOUDS. PATCHY FOG AFTER MIDNIGHT.
LOWS 38 TO 50. NORTHWEST WINDS UP TO 10 MPH WITH GUSTS TO 20 MPH.
WEDNESDAY
AREAS OF FOG IN THE MORNING. SUNNY. HIGHS 69 TO 76.
NORTHWEST WINDS UP TO 10 MPH WITH GUSTS TO 20 MPH.
WEDNESDAY NIGHT THROUGH THURSDAY NIGHT
MOSTLY CLEAR. LOWS
35 TO 50. HIGHS 72 TO 79.
FRIDAY
MOSTLY SUNNY. HIGHS 72 TO 79.
FRIDAY NIGHT
PARTLY CLOUDY. AREAS OF FOG AFTER MIDNIGHT. LOWS
38 TO 50.
SATURDAY
AREAS OF FOG IN THE MORNING. SUNNY. HIGHS 71 TO 78.
SATURDAY NIGHT AND SUNDAY
MOSTLY CLEAR. LOWS 38 TO 50. HIGHS
73 TO 80.
TEMPERATURE
BAKER CITY 70 31 73
=
ORZ061-281600-
HARNEY COUNTY-
130 AM PDT MON SEP 28 2026
TODAY
PATCHY FOG THIS MORNING. SUNNY. HIGHS 66 TO 73.
NORTHWEST WINDS 10 TO 15 MPH.
TONIGHT
MOSTLY CLEAR. LOWS 31 TO 42. NORTHWEST WINDS 10 TO
15 MPH WITH GUSTS TO 25 MPH IN THE EVENING, BECOMING LIGHT AFTER
MIDNIGHT.
TUESDAY
SUNNY. HIGHS 69 TO 76. WEST WINDS UP TO 10 MPH. GUSTS
TO 20 MPH IN THE AFTERNOON.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 36 TO 46. NORTHWEST WINDS UP
TO 10 MPH. GUSTS TO 20 MPH IN THE EVENING.
WEDNESDAY
PATCHY FOG IN THE MORNING. SUNNY. HIGHS 69 TO 76.
NORTHWEST WINDS UP TO 10 MPH.
WEDNESDAY NIGHT THROUGH THURSDAY NIGHT
MOSTLY CLEAR. LOWS
35 TO 48. HIGHS 74 TO 82.
FRIDAY AND FRIDAY NIGHT
PARTLY CLOUDY. HIGHS 73 TO 80. LOWS
37 TO 47.
SATURDAY THROUGH SUNDAY
MOSTLY CLEAR. HIGHS 70 TO 80. LOWS
37 TO 47.
TEMPERATURE
BURNS 72 31 76
=
ORZ063-281600-
MALHEUR COUNTY-
230 AM MDT MON SEP 28 2026 /130 AM PDT MON SEP 28 2026/
TODAY
SUNNY. HIGHS 69 TO 77. NORTHWEST WINDS 10 TO 15 MPH.
TONIGHT
MOSTLY CLEAR. LOWS 37 TO 47. NORTHWEST WINDS 10 TO
15 MPH.
TUESDAY
SUNNY. HIGHS 72 TO 79. WEST WINDS UP TO 10 MPH WITH
GUSTS TO 20 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 42 TO 52. NORTHWEST WINDS UP
TO 10 MPH WITH GUSTS TO 20 MPH.
WEDNESDAY
SUNNY. HIGHS 73 TO 79. NORTHWEST WINDS UP TO 10 MPH.
WEDNESDAY NIGHT THROUGH THURSDAY NIGHT
MOSTLY CLEAR. LOWS
41 TO 51. HIGHS 75 TO 83.
FRIDAY AND FRIDAY NIGHT
PARTLY CLOUDY. HIGHS 76 TO 83. LOWS
43 TO 52.
SATURDAY THROUGH SUNDAY
MOSTLY CLEAR. HIGHS 73 TO 81. LOWS
41 TO 51.
=
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