653
FPUS55 KBOI 281838
ZFPBOI
ZONE FORECASTS FOR SOUTHWEST IDAHO/SOUTHEAST OREGON
NATIONAL WEATHER SERVICE BOISE ID
1237 PM MDT MON SEP 28 2026
SPOT TEMPERATURES ARE FOR TONIGHT, TUESDAY, TUESDAY NIGHT, AND
WEDNESDAY.
IDZ011-290200-
WEST CENTRAL MOUNTAINS-
1237 PM MDT MON SEP 28 2026
TONIGHT
MOSTLY CLEAR. AREAS OF FOG AFTER MIDNIGHT. LOWS 33 TO
43.
TUESDAY
AREAS OF FOG IN THE MORNING. SUNNY. HIGHS 61 TO 73.
TUESDAY NIGHT
DECREASING CLOUDS. AREAS OF FOG AFTER MIDNIGHT.
LOWS 37 TO 46.
WEDNESDAY
AREAS OF FOG IN THE MORNING. SUNNY. HIGHS 61 TO 73.
WEDNESDAY NIGHT
MOSTLY CLEAR. AREAS OF FOG AFTER MIDNIGHT.
LOWS 38 TO 47.
THURSDAY
AREAS OF FOG IN THE MORNING. SUNNY. HIGHS 64 TO 76.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS 40 TO 50.
FRIDAY
SUNNY. HIGHS 63 TO 76.
FRIDAY NIGHT
PARTLY CLOUDY. AREAS OF FOG AFTER MIDNIGHT. LOWS
38 TO 47.
SATURDAY
AREAS OF FOG IN THE MORNING. SUNNY. HIGHS 65 TO 77.
SATURDAY NIGHT AND SUNDAY
MOSTLY CLEAR. LOWS 41 TO 51. HIGHS
66 TO 78.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 42 TO 52.
MONDAY
SUNNY. HIGHS 66 TO 78.
TEMPERATURE
MCCALL 33 68 37 68
=
IDZ013-290200-
BOISE MOUNTAINS-
1237 PM MDT MON SEP 28 2026
TONIGHT
CLEAR. PATCHY FOG AFTER MIDNIGHT. LOWS 30 TO 45.
TUESDAY
AREAS OF FOG IN THE MORNING. SUNNY. HIGHS 62 TO 76.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 33 TO 48.
WEDNESDAY
AREAS OF FOG IN THE MORNING. SUNNY. HIGHS 63 TO 78.
WEDNESDAY NIGHT
CLEAR. PATCHY FOG AFTER MIDNIGHT. LOWS 33 TO
48.
THURSDAY
AREAS OF FOG IN THE MORNING. SUNNY. HIGHS 67 TO 81.
THURSDAY NIGHT AND FRIDAY
MOSTLY CLEAR. LOWS 37 TO 52. HIGHS
67 TO 81.
FRIDAY NIGHT
INCREASING CLOUDS. LOWS 34 TO 49.
SATURDAY THROUGH SUNDAY
MOSTLY CLEAR. HIGHS 68 TO 83. LOWS
36 TO 51.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 37 TO 52.
MONDAY
SUNNY. HIGHS 69 TO 83.
TEMPERATURE
IDAHO CITY 34 75 38 76
=
IDZ028-290200-
CAMAS PRAIRIE-
1237 PM MDT MON SEP 28 2026
TONIGHT
MOSTLY CLEAR. LOWS 34 TO 39. NORTHWEST WINDS 10 TO
15 MPH. GUSTS TO 25 MPH THIS EVENING.
TUESDAY
SUNNY. HIGHS 70 TO 75. LIGHT WINDS IN THE MORNING,
BECOMING WEST 10 TO 15 MPH WITH GUSTS TO 25 MPH IN THE AFTERNOON.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 36 TO 41. NORTHWEST WINDS
10 TO 15 MPH. GUSTS TO 25 MPH IN THE EVENING.
WEDNESDAY
SUNNY. HIGHS 72 TO 77. NORTHWEST WINDS 10 TO 15 MPH.
GUSTS TO 30 MPH IN THE AFTERNOON.
WEDNESDAY NIGHT
CLEAR. LOWS 36 TO 41. BREEZY. WEST WINDS 10 TO
20 MPH WITH GUSTS TO 30 MPH IN THE EVENING, BECOMING LIGHT AFTER
MIDNIGHT.
THURSDAY THROUGH FRIDAY
MOSTLY CLEAR. HIGHS 73 TO 79. LOWS
40 TO 46.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS 39 TO 44.
SATURDAY THROUGH SUNDAY
MOSTLY CLEAR. HIGHS 73 TO 79. LOWS
40 TO 45.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 41 TO 46.
MONDAY
SUNNY. HIGHS 74 TO 79.
TEMPERATURE
FAIRFIELD 34 74 36 76
=
IDZ033-290200-
UPPER WEISER RIVER-
1237 PM MDT MON SEP 28 2026
TONIGHT
MOSTLY CLEAR. LOWS 40 TO 45. NORTH WINDS UP TO 10 MPH.
TUESDAY
SUNNY. HIGHS 70 TO 77. LIGHT WINDS.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 44 TO 49. LIGHT WINDS.
WEDNESDAY
PATCHY FOG IN THE MORNING. SUNNY. HIGHS 72 TO 79.
NORTH WINDS UP TO 10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS 46 TO 51. NORTH WINDS UP TO
10 MPH.
THURSDAY THROUGH FRIDAY
MOSTLY CLEAR. HIGHS 74 TO 80. LOWS
50 TO 55.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS 48 TO 53.
SATURDAY THROUGH SUNDAY
MOSTLY CLEAR. HIGHS 74 TO 81. LOWS
49 TO 54.
SUNDAY NIGHT
INCREASING CLOUDS. LOWS 50 TO 55.
MONDAY
SUNNY. HIGHS 75 TO 82.
TEMPERATURE
COUNCIL 42 76 45 77
CAMBRIDGE 41 77 45 79
=
ORZ064-290200-
OREGON LOWER TREASURE VALLEY-
1237 PM MDT MON SEP 28 2026 /1137 AM PDT MON SEP 28 2026/
TONIGHT
MOSTLY CLEAR. LOWS 42 TO 47. NORTHWEST WINDS UP TO
10 MPH WITH GUSTS TO 20 MPH.
TUESDAY
SUNNY. HIGHS 76 TO 81. WEST WINDS UP TO 10 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 45 TO 52. NORTHWEST WINDS UP
TO 10 MPH.
WEDNESDAY
SUNNY. HIGHS 76 TO 81. NORTHWEST WINDS UP TO 10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS 45 TO 51. LIGHT WINDS.
THURSDAY THROUGH FRIDAY
MOSTLY CLEAR. HIGHS 77 TO 83. LOWS
48 TO 54.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS 47 TO 53.
SATURDAY THROUGH SUNDAY
MOSTLY CLEAR. HIGHS 77 TO 83. LOWS
46 TO 53.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 47 TO 53.
MONDAY
SUNNY. HIGHS 79 TO 84.
TEMPERATURE
ONTARIO 42 78 45 79
=
IDZ012-290200-
LOWER TREASURE VALLEY-
1237 PM MDT MON SEP 28 2026
TONIGHT
MOSTLY CLEAR. LOWS 41 TO 48. NORTHWEST WINDS 10 TO
15 MPH.
TUESDAY
AREAS OF FOG IN THE MORNING. SUNNY. HIGHS 74 TO 79.
LIGHT WINDS IN THE MORNING, BECOMING NORTHWEST 10 TO 15 MPH IN
THE AFTERNOON.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 46 TO 51. NORTHWEST WINDS UP
TO 10 MPH.
WEDNESDAY
PATCHY FOG IN THE MORNING. SUNNY. HIGHS 75 TO 80.
NORTHWEST WINDS 10 TO 15 MPH.
WEDNESDAY NIGHT
CLEAR. PATCHY FOG AFTER MIDNIGHT. LOWS 46 TO
51. NORTHWEST WINDS 10 TO 15 MPH IN THE EVENING, BECOMING LIGHT
AFTER MIDNIGHT.
THURSDAY
PATCHY FOG IN THE MORNING. SUNNY. HIGHS 78 TO 83.
THURSDAY NIGHT AND FRIDAY
MOSTLY CLEAR. LOWS 49 TO 54. HIGHS
78 TO 83.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS 48 TO 53.
SATURDAY THROUGH SUNDAY
MOSTLY CLEAR. HIGHS 77 TO 83. LOWS
48 TO 53.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 49 TO 54.
MONDAY
SUNNY. HIGHS 79 TO 84.
TEMPERATURE
CALDWELL 42 78 47 79
=
IDZ014-290200-
UPPER TREASURE VALLEY-
1237 PM MDT MON SEP 28 2026
TONIGHT
CLEAR. LOWS 42 TO 47. BREEZY. NORTHWEST WINDS 10 TO
20 MPH WITH GUSTS TO 30 MPH.
TUESDAY
PATCHY FOG IN THE MORNING. SUNNY. HIGHS 74 TO 79.
BREEZY. NORTHWEST WINDS 10 TO 20 MPH. GUSTS TO 30 MPH IN THE
AFTERNOON.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 45 TO 50. NORTHWEST WINDS
10 TO 15 MPH. GUSTS TO 30 MPH IN THE EVENING.
WEDNESDAY
PATCHY FOG IN THE MORNING. SUNNY. HIGHS 75 TO 80.
BREEZY. NORTHWEST WINDS 10 TO 20 MPH. GUSTS TO 35 MPH IN THE
AFTERNOON.
WEDNESDAY NIGHT
CLEAR. PATCHY FOG AFTER MIDNIGHT. LOWS 45 TO
50. BREEZY. NORTHWEST WINDS 10 TO 20 MPH WITH GUSTS TO 35 MPH IN
THE EVENING, DECREASING TO AROUND 10 MPH AFTER MIDNIGHT.
THURSDAY
PATCHY FOG IN THE MORNING. SUNNY. HIGHS 79 TO 84.
THURSDAY NIGHT AND FRIDAY
MOSTLY CLEAR. LOWS 48 TO 54. HIGHS
80 TO 85.
FRIDAY NIGHT
INCREASING CLOUDS. LOWS 47 TO 52.
SATURDAY THROUGH SUNDAY
MOSTLY CLEAR. HIGHS 78 TO 86. LOWS
47 TO 54.
SUNDAY NIGHT
INCREASING CLOUDS. LOWS 47 TO 55.
MONDAY
SUNNY. HIGHS 81 TO 86.
TEMPERATURE
BOISE 45 76 50 77
MOUNTAIN HOME 42 77 47 78
=
IDZ016-290200-
WESTERN MAGIC VALLEY-
1237 PM MDT MON SEP 28 2026
TONIGHT
MOSTLY CLEAR. LOWS 42 TO 47. BREEZY. SOUTHWEST 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 44 TO 50. WEST WINDS 10 TO
15 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
CLEAR. LOWS 44 TO 49. BREEZY. WEST WINDS 10 TO
20 MPH. GUSTS TO 35 MPH IN THE EVENING, DECREASING TO 25 MPH
AFTER MIDNIGHT.
THURSDAY THROUGH FRIDAY
MOSTLY CLEAR. HIGHS 76 TO 83. LOWS
47 TO 52.
FRIDAY NIGHT
INCREASING CLOUDS. LOWS 47 TO 52.
SATURDAY THROUGH SUNDAY
MOSTLY CLEAR. HIGHS 75 TO 83. LOWS
47 TO 52.
SUNDAY NIGHT
INCREASING CLOUDS. LOWS 48 TO 53.
MONDAY
SUNNY. HIGHS 78 TO 83.
TEMPERATURE
JEROME 44 71 48 73
TWIN FALLS 45 71 48 73
=
IDZ029-290200-
OWYHEE MOUNTAINS-
1237 PM MDT MON SEP 28 2026
TONIGHT
MOSTLY CLEAR. LOWS 39 TO 47.
TUESDAY
SUNNY. HIGHS 69 TO 74.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 43 TO 52.
WEDNESDAY
SUNNY. HIGHS 69 TO 74.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS 43 TO 52.
THURSDAY THROUGH FRIDAY
MOSTLY CLEAR. HIGHS 72 TO 80. LOWS
47 TO 55.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS 45 TO 53.
SATURDAY THROUGH SUNDAY
MOSTLY CLEAR. HIGHS 71 TO 81. LOWS
46 TO 53.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 48 TO 54.
MONDAY
SUNNY. HIGHS 74 TO 81.
=
IDZ015-290200-
SOUTHWEST HIGHLANDS-
1237 PM MDT MON SEP 28 2026
TONIGHT
MOSTLY CLEAR. LOWS 35 TO 44. BREEZY. GUSTS TO 35 MPH
THIS EVENING.
TUESDAY
SUNNY. HIGHS 69 TO 74. BREEZY.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 40 TO 48.
WEDNESDAY
SUNNY. HIGHS 72 TO 77. BREEZY.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS 41 TO 47.
THURSDAY THROUGH FRIDAY
MOSTLY CLEAR. HIGHS 77 TO 82. LOWS
46 TO 52.
FRIDAY NIGHT
INCREASING CLOUDS. LOWS 45 TO 50.
SATURDAY THROUGH SUNDAY
MOSTLY CLEAR. HIGHS 75 TO 83. LOWS
45 TO 50.
SUNDAY NIGHT AND MONDAY
PARTLY CLOUDY. LOWS 46 TO 52. HIGHS
78 TO 83.
=
IDZ030-290200-
SOUTHERN TWIN FALLS COUNTY-
1237 PM MDT MON SEP 28 2026
TONIGHT
MOSTLY CLEAR. LOWS 41 TO 46.
TUESDAY
SUNNY. HIGHS 69 TO 74.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 45 TO 50.
WEDNESDAY
SUNNY. HIGHS 70 TO 75. BREEZY.
WEDNESDAY NIGHT
CLEAR. LOWS 43 TO 48. BREEZY.
THURSDAY THROUGH FRIDAY
MOSTLY CLEAR. HIGHS 76 TO 83. LOWS
48 TO 53.
FRIDAY NIGHT
INCREASING CLOUDS. LOWS 47 TO 52.
SATURDAY THROUGH SUNDAY
MOSTLY CLEAR. HIGHS 75 TO 83. LOWS
47 TO 52.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 49 TO 54.
MONDAY
SUNNY. HIGHS 78 TO 83.
=
ORZ062-290200-
BAKER COUNTY-
1137 AM PDT MON SEP 28 2026
TONIGHT
MOSTLY CLEAR. PATCHY FOG AFTER MIDNIGHT. LOWS 32 TO
45. NORTHWEST WINDS 10 TO 15 MPH. GUSTS TO 25 MPH THIS EVENING.
TUESDAY
PATCHY FOG IN THE MORNING. SUNNY. HIGHS 69 TO 76.
NORTHWEST WINDS UP TO 10 MPH. GUSTS TO 20 MPH IN THE AFTERNOON.
TUESDAY NIGHT
DECREASING CLOUDS. AREAS OF FOG AFTER MIDNIGHT.
LOWS 37 TO 49. NORTHWEST WINDS UP TO 10 MPH WITH GUSTS TO 20 MPH.
WEDNESDAY
AREAS OF FOG IN THE MORNING. SUNNY. HIGHS 68 TO 75.
NORTHWEST WINDS UP TO 10 MPH WITH GUSTS TO 20 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. AREAS OF FOG AFTER MIDNIGHT.
LOWS 36 TO 49. NORTHWEST WINDS UP TO 10 MPH.
THURSDAY
AREAS OF FOG IN THE MORNING. SUNNY. HIGHS 72 TO 79.
THURSDAY NIGHT
DECREASING CLOUDS. LOWS 40 TO 52.
FRIDAY
AREAS OF FOG IN THE MORNING. SUNNY. HIGHS 71 TO 78.
FRIDAY NIGHT
PARTLY CLOUDY. AREAS OF FOG AFTER MIDNIGHT. LOWS
37 TO 49.
SATURDAY
AREAS OF FOG IN THE MORNING. SUNNY. HIGHS 71 TO 79.
SATURDAY NIGHT AND SUNDAY
MOSTLY CLEAR. LOWS 39 TO 52. HIGHS
73 TO 80.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 40 TO 53.
MONDAY
SUNNY. HIGHS 74 TO 81.
TEMPERATURE
BAKER CITY 32 73 37 70
=
ORZ061-290200-
HARNEY COUNTY-
1137 AM PDT MON SEP 28 2026
TONIGHT
MOSTLY CLEAR. LOWS 31 TO 41. NORTHWEST WINDS 10 TO
15 MPH WITH GUSTS TO 25 MPH THIS 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 35 TO 45. NORTHWEST WINDS UP
TO 10 MPH. GUSTS TO 20 MPH IN THE EVENING.
WEDNESDAY
AREAS OF FOG IN THE MORNING. SUNNY. HIGHS 69 TO 76.
LIGHT WINDS.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS 36 TO 47. LIGHT WINDS.
THURSDAY THROUGH FRIDAY
MOSTLY CLEAR. HIGHS 72 TO 82. LOWS
39 TO 49.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS 37 TO 47.
SATURDAY
SUNNY. HIGHS 72 TO 79.
SATURDAY NIGHT
INCREASING CLOUDS. LOWS 38 TO 48.
SUNDAY
SUNNY. HIGHS 74 TO 82.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 38 TO 49.
MONDAY
SUNNY. HIGHS 74 TO 81.
TEMPERATURE
BURNS 31 75 35 76
=
ORZ063-290200-
MALHEUR COUNTY-
1237 PM MDT MON SEP 28 2026 /1137 AM PDT MON SEP 28 2026/
TONIGHT
MOSTLY CLEAR. LOWS 36 TO 46. NORTHWEST WINDS 10 TO
15 MPH. GUSTS TO 25 MPH THIS EVENING.
TUESDAY
SUNNY. HIGHS 72 TO 79. WEST WINDS UP TO 10 MPH WITH
GUSTS TO 20 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 41 TO 51. NORTHWEST WINDS UP
TO 10 MPH WITH GUSTS TO 20 MPH.
WEDNESDAY
AREAS OF FOG IN THE MORNING. SUNNY. HIGHS 73 TO 79.
NORTHWEST WINDS UP TO 10 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS 41 TO 51. NORTH WINDS UP TO
10 MPH.
THURSDAY THROUGH FRIDAY
MOSTLY CLEAR. HIGHS 75 TO 83. LOWS
45 TO 53.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS 43 TO 52.
SATURDAY
PATCHY FOG IN THE MORNING. SUNNY. HIGHS 74 TO 81.
SATURDAY NIGHT AND SUNDAY
MOSTLY CLEAR. LOWS 43 TO 52. HIGHS
76 TO 83.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 44 TO 53.
MONDAY
SUNNY. HIGHS 78 TO 84.
=
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