003
FPUS55 KBOI 262031
ZFPBOI
ZONE FORECASTS FOR SOUTHWEST IDAHO/SOUTHEAST OREGON
NATIONAL WEATHER SERVICE BOISE ID
230 PM MDT SAT SEP 26 2026
SPOT TEMPERATURES ARE FOR TONIGHT, SUNDAY, SUNDAY NIGHT, AND
MONDAY.
IDZ011-270400-
WEST CENTRAL MOUNTAINS-
230 PM MDT SAT SEP 26 2026
TONIGHT
INCREASING CLOUDS. LOWS 31 TO 43.
SUNDAY
MOSTLY CLOUDY WITH SCATTERED RAIN SHOWERS. A SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. CHANCE OF RAIN
30 PERCENT. HIGHS 56 TO 69.
SUNDAY NIGHT
MOSTLY CLOUDY. AREAS OF FOG AFTER MIDNIGHT. LOWS
37 TO 47.
MONDAY
AREAS OF FOG IN THE MORNING. SUNNY. HIGHS 59 TO 73.
MONDAY NIGHT
MOSTLY CLEAR. AREAS OF FOG AFTER MIDNIGHT. LOWS
34 TO 45.
TUESDAY
PATCHY FOG IN THE MORNING. SUNNY. HIGHS 61 TO 74.
TUESDAY NIGHT AND WEDNESDAY
MOSTLY CLEAR. LOWS 38 TO 48. HIGHS
61 TO 73.
WEDNESDAY NIGHT AND THURSDAY
MOSTLY CLEAR. PATCHY FOG THROUGH
THE DAY. LOWS 37 TO 47. HIGHS 62 TO 74.
THURSDAY NIGHT AND FRIDAY
PARTLY CLOUDY. LOWS 39 TO 49. HIGHS
60 TO 72.
FRIDAY NIGHT
PARTLY CLOUDY. AREAS OF FOG AFTER MIDNIGHT. LOWS
36 TO 46.
SATURDAY
AREAS OF FOG IN THE MORNING. SUNNY. HIGHS 61 TO 73.
TEMPERATURE
MCCALL 31 63 37 67
=
IDZ013-270400-
BOISE MOUNTAINS-
230 PM MDT SAT SEP 26 2026
TONIGHT
MOSTLY CLOUDY. LOWS 33 TO 48.
SUNDAY
CLOUDY. HIGHS 58 TO 73.
SUNDAY NIGHT
MOSTLY CLOUDY. LOWS 35 TO 50.
MONDAY
SUNNY. HIGHS 62 TO 76.
MONDAY NIGHT
MOSTLY CLEAR. LOWS 31 TO 46.
TUESDAY THROUGH SATURDAY
MOSTLY CLEAR. HIGHS 64 TO 79. LOWS
33 TO 48.
TEMPERATURE
IDAHO CITY 37 72 40 75
=
IDZ028-270400-
CAMAS PRAIRIE-
230 PM MDT SAT SEP 26 2026
TONIGHT
MOSTLY CLOUDY. LOWS 37 TO 42. SOUTHWEST WINDS UP TO
10 MPH. GUSTS TO 20 MPH THIS EVENING.
SUNDAY
CLOUDY. HIGHS 70 TO 75. LIGHT WINDS IN THE MORNING,
BECOMING SOUTHEAST AROUND 10 MPH IN THE AFTERNOON.
SUNDAY NIGHT
MOSTLY CLOUDY. LOWS 41 TO 46. WEST WINDS AROUND
10 MPH.
MONDAY
MOSTLY SUNNY. HIGHS 69 TO 74. LIGHT WINDS IN THE
MORNING, BECOMING WEST 10 TO 15 MPH IN THE AFTERNOON.
MONDAY NIGHT
MOSTLY CLEAR. LOWS 34 TO 39. WEST WINDS 10 TO
15 MPH.
TUESDAY
SUNNY. HIGHS 69 TO 74.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 35 TO 41.
WEDNESDAY
SUNNY. HIGHS 71 TO 76.
WEDNESDAY NIGHT THROUGH FRIDAY
MOSTLY CLEAR. LOWS 36 TO 43.
HIGHS 70 TO 76.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS 36 TO 41.
SATURDAY
SUNNY. HIGHS 68 TO 73.
TEMPERATURE
FAIRFIELD 37 72 41 72
=
IDZ033-270400-
UPPER WEISER RIVER-
230 PM MDT SAT SEP 26 2026
TONIGHT
INCREASING CLOUDS. LOWS 41 TO 47. NORTH WINDS UP TO
10 MPH.
SUNDAY
MOSTLY CLOUDY. HIGHS 66 TO 73. NORTHWEST WINDS UP TO
10 MPH IN THE MORNING, BECOMING LIGHT IN THE AFTERNOON.
SUNDAY NIGHT
DECREASING CLOUDS. LOWS 45 TO 50. LIGHT WINDS.
MONDAY
SUNNY. HIGHS 70 TO 76. NORTH WINDS UP TO 10 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS 43 TO 48. NORTH WINDS UP TO
10 MPH.
TUESDAY THROUGH THURSDAY
MOSTLY CLEAR. HIGHS 70 TO 79. LOWS
46 TO 51.
THURSDAY NIGHT
INCREASING CLOUDS. LOWS 47 TO 52.
FRIDAY THROUGH SATURDAY
MOSTLY CLEAR. HIGHS 71 TO 78. LOWS
45 TO 50.
TEMPERATURE
COUNCIL 42 72 46 76
CAMBRIDGE 41 72 46 76
=
ORZ064-270400-
OREGON LOWER TREASURE VALLEY-
230 PM MDT SAT SEP 26 2026 /130 PM PDT SAT SEP 26 2026/
TONIGHT
MOSTLY CLOUDY. LOWS 41 TO 47. NORTHWEST WINDS UP TO
10 MPH.
SUNDAY
CLOUDY. HIGHS 70 TO 75. LIGHT WINDS.
SUNDAY NIGHT
DECREASING CLOUDS. LOWS 45 TO 50. NORTH WINDS UP
TO 10 MPH.
MONDAY
SUNNY. HIGHS 74 TO 79. NORTHWEST WINDS AROUND 10 MPH
WITH GUSTS TO 20 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS 42 TO 47. NORTHWEST WINDS
AROUND 10 MPH WITH GUSTS TO 20 MPH.
TUESDAY THROUGH THURSDAY
MOSTLY CLEAR. HIGHS 75 TO 81. LOWS
44 TO 51.
THURSDAY NIGHT
INCREASING CLOUDS. LOWS 45 TO 51.
FRIDAY THROUGH SATURDAY
MOSTLY CLEAR. HIGHS 74 TO 80. LOWS
43 TO 49.
TEMPERATURE
ONTARIO 41 73 45 77
=
IDZ012-270400-
LOWER TREASURE VALLEY-
230 PM MDT SAT SEP 26 2026
TONIGHT
MOSTLY CLOUDY. LOWS 42 TO 47. NORTHWEST WINDS UP TO
10 MPH.
SUNDAY
CLOUDY. HIGHS 69 TO 74. NORTH WINDS UP TO 10 MPH.
SUNDAY NIGHT
DECREASING CLOUDS. LOWS 46 TO 51. NORTH WINDS
10 TO 15 MPH IN THE EVENING, BECOMING LIGHT AFTER MIDNIGHT.
MONDAY
SUNNY. HIGHS 74 TO 79. NORTHWEST WINDS 10 TO 15 MPH.
MONDAY NIGHT
CLEAR. LOWS 43 TO 48. NORTHWEST WINDS 10 TO
15 MPH.
TUESDAY AND TUESDAY NIGHT
MOSTLY CLEAR. HIGHS 74 TO 79. LOWS
46 TO 51.
WEDNESDAY
SUNNY. HIGHS 76 TO 81.
WEDNESDAY NIGHT THROUGH SATURDAY
MOSTLY CLEAR. LOWS 45 TO 52.
HIGHS 74 TO 81.
TEMPERATURE
CALDWELL 44 72 46 76
=
IDZ014-270400-
UPPER TREASURE VALLEY-
230 PM MDT SAT SEP 26 2026
TONIGHT
MOSTLY CLOUDY. LOWS 43 TO 49. NORTHWEST WINDS UP TO
10 MPH.
SUNDAY
CLOUDY. HIGHS 71 TO 77. EAST WINDS UP TO 10 MPH IN THE
MORNING, SHIFTING TO NORTH IN THE AFTERNOON.
SUNDAY NIGHT
MOSTLY CLOUDY. LOWS 47 TO 52. BREEZY. NORTHWEST
WINDS 10 TO 20 MPH.
MONDAY
MOSTLY SUNNY. HIGHS 73 TO 78. NORTHWEST WINDS 10 TO
15 MPH. GUSTS TO 20 MPH IN THE MORNING, INCREASING TO 30 MPH IN
THE AFTERNOON.
MONDAY NIGHT
CLEAR. LOWS 42 TO 47. BREEZY. NORTHWEST WINDS
10 TO 20 MPH. GUSTS TO 30 MPH IN THE EVENING.
TUESDAY THROUGH WEDNESDAY NIGHT
CLEAR. HIGHS 74 TO 80. LOWS
44 TO 51.
THURSDAY THROUGH SATURDAY
MOSTLY CLEAR. HIGHS 73 TO 83. LOWS
44 TO 52.
TEMPERATURE
BOISE 49 72 50 75
MOUNTAIN HOME 46 75 49 76
=
IDZ016-270400-
WESTERN MAGIC VALLEY-
230 PM MDT SAT SEP 26 2026
TONIGHT
MOSTLY CLOUDY. LOWS 43 TO 48. WEST WINDS UP TO 10 MPH
THIS EVENING, BECOMING LIGHT AFTER MIDNIGHT.
SUNDAY
MOSTLY CLOUDY. HIGHS 73 TO 78. EAST WINDS 10 TO 15 MPH.
SUNDAY NIGHT
MOSTLY CLOUDY. LOWS 47 TO 52. BREEZY. WEST WINDS
10 TO 20 MPH WITH GUSTS TO 30 MPH.
MONDAY
PARTLY SUNNY IN THE MORNING, THEN CLEARING. HIGHS 70 TO
75. WEST WINDS 10 TO 15 MPH WITH GUSTS TO 25 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS 42 TO 47. SOUTHWEST WINDS
10 TO 15 MPH WITH GUSTS TO 25 MPH.
TUESDAY
SUNNY. HIGHS 70 TO 75.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 44 TO 49.
WEDNESDAY AND WEDNESDAY NIGHT
CLEAR. HIGHS 73 TO 78. LOWS
44 TO 49.
THURSDAY THROUGH FRIDAY
MOSTLY CLEAR. HIGHS 73 TO 80. LOWS
45 TO 50.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS 43 TO 48.
SATURDAY
SUNNY. HIGHS 70 TO 75.
TEMPERATURE
JEROME 46 74 49 70
TWIN FALLS 45 75 50 70
=
IDZ029-270400-
OWYHEE MOUNTAINS-
230 PM MDT SAT SEP 26 2026
TONIGHT
CLOUDY. LOWS 42 TO 49.
SUNDAY
CLOUDY. HIGHS 64 TO 71.
SUNDAY NIGHT
MOSTLY CLOUDY. LOWS 43 TO 50.
MONDAY
SUNNY. HIGHS 66 TO 71.
MONDAY NIGHT
MOSTLY CLEAR. LOWS 39 TO 48.
TUESDAY
SUNNY. HIGHS 68 TO 73.
TUESDAY NIGHT THROUGH WEDNESDAY NIGHT
CLEAR. LOWS 43 TO 51.
HIGHS 69 TO 76.
THURSDAY THROUGH FRIDAY
MOSTLY CLEAR. HIGHS 69 TO 79. LOWS
44 TO 51.
FRIDAY NIGHT
INCREASING CLOUDS. LOWS 41 TO 49.
SATURDAY
SUNNY. HIGHS 66 TO 74.
=
IDZ015-270400-
SOUTHWEST HIGHLANDS-
230 PM MDT SAT SEP 26 2026
TONIGHT
MOSTLY CLOUDY. LOWS 42 TO 47.
SUNDAY
MOSTLY CLOUDY. HIGHS 68 TO 74.
SUNDAY NIGHT
MOSTLY CLOUDY. LOWS 44 TO 49.
MONDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF RAIN SHOWERS IN THE
MORNING. CHANCE OF RAIN 20 PERCENT. HIGHS 67 TO 72.
MONDAY NIGHT
MOSTLY CLEAR. LOWS 38 TO 44.
TUESDAY AND TUESDAY NIGHT
MOSTLY CLEAR. HIGHS 70 TO 75. LOWS
41 TO 46.
WEDNESDAY AND WEDNESDAY NIGHT
CLEAR. HIGHS 73 TO 78. LOWS
42 TO 47.
THURSDAY THROUGH FRIDAY
MOSTLY CLEAR. HIGHS 73 TO 81. LOWS
43 TO 48.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS 41 TO 46.
SATURDAY
SUNNY. HIGHS 70 TO 75.
=
IDZ030-270400-
SOUTHERN TWIN FALLS COUNTY-
230 PM MDT SAT SEP 26 2026
TONIGHT
MOSTLY CLOUDY. LOWS 41 TO 46.
SUNDAY
MOSTLY CLOUDY. HIGHS 73 TO 78.
SUNDAY NIGHT
MOSTLY CLOUDY. LOWS 45 TO 50.
MONDAY
MOSTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS
67 TO 72.
MONDAY NIGHT
MOSTLY CLEAR. LOWS 40 TO 45.
TUESDAY AND TUESDAY NIGHT
MOSTLY CLEAR. HIGHS 68 TO 73. LOWS
42 TO 47.
WEDNESDAY THROUGH THURSDAY
CLEAR. HIGHS 72 TO 80. LOWS 43 TO
48.
THURSDAY NIGHT AND FRIDAY
MOSTLY CLEAR. LOWS 46 TO 51. HIGHS
73 TO 78.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS 43 TO 48.
SATURDAY
SUNNY. HIGHS 70 TO 75.
=
ORZ062-270400-
BAKER COUNTY-
130 PM PDT SAT SEP 26 2026
TONIGHT
INCREASING CLOUDS. LOWS 31 TO 43. LIGHT WINDS.
SUNDAY
CLOUDY. HIGHS 63 TO 71. LIGHT WINDS.
SUNDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN CLEARING.
PATCHY FOG AFTER MIDNIGHT. LOWS 35 TO 46. NORTHWEST WINDS UP TO
10 MPH.
MONDAY
AREAS OF FOG IN THE MORNING. SUNNY. HIGHS 67 TO 75.
NORTHWEST WINDS UP TO 10 MPH WITH GUSTS TO 20 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS 34 TO 45. NORTHWEST WINDS UP
TO 10 MPH. GUSTS TO 25 MPH IN THE EVENING.
TUESDAY
SUNNY. HIGHS 70 TO 77.
TUESDAY NIGHT THROUGH THURSDAY
MOSTLY CLEAR. AREAS OF FOG.
LOWS 35 TO 49. HIGHS 69 TO 77.
THURSDAY NIGHT THROUGH FRIDAY NIGHT
PARTLY CLOUDY. AREAS OF
FOG. LOWS 34 TO 48. HIGHS 68 TO 75.
SATURDAY
AREAS OF FOG IN THE MORNING. SUNNY. HIGHS 68 TO 76.
TEMPERATURE
BAKER CITY 31 66 35 71
=
ORZ061-270400-
HARNEY COUNTY-
130 PM PDT SAT SEP 26 2026
TONIGHT
MOSTLY CLOUDY. LOWS 34 TO 45. NORTHEAST WINDS UP TO
10 MPH.
SUNDAY
CLOUDY. HIGHS 64 TO 69. EAST WINDS UP TO 10 MPH IN THE
MORNING, SHIFTING TO SOUTHWEST WITH GUSTS TO 30 MPH IN THE
AFTERNOON.
SUNDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
34 TO 43. SOUTHWEST WINDS 10 TO 15 MPH IN THE EVENING, SHIFTING
TO NORTHWEST AFTER MIDNIGHT.
MONDAY
SUNNY. HIGHS 64 TO 72. NORTHWEST WINDS UP TO 10 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS 33 TO 41. NORTHWEST WINDS
10 TO 15 MPH.
TUESDAY THROUGH FRIDAY
MOSTLY CLEAR. HIGHS 69 TO 79. LOWS
35 TO 46.
FRIDAY NIGHT
INCREASING CLOUDS. LOWS 33 TO 44.
SATURDAY
PATCHY FOG IN THE MORNING. SUNNY. HIGHS 69 TO 75.
TEMPERATURE
BURNS 34 69 34 72
=
ORZ063-270400-
MALHEUR COUNTY-
230 PM MDT SAT SEP 26 2026 /130 PM PDT SAT SEP 26 2026/
TONIGHT
MOSTLY CLOUDY. LOWS 38 TO 47. NORTH WINDS UP TO
10 MPH.
SUNDAY
CLOUDY. HIGHS 67 TO 73. LIGHT WINDS IN THE MORNING,
BECOMING NORTH 10 TO 15 MPH IN THE AFTERNOON.
SUNDAY NIGHT
DECREASING CLOUDS. LOWS 40 TO 49. WEST WINDS
10 TO 15 MPH.
MONDAY
SUNNY. HIGHS 70 TO 76. NORTHWEST WINDS UP TO 10 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS 35 TO 45. NORTHWEST WINDS
10 TO 15 MPH.
TUESDAY AND TUESDAY NIGHT
MOSTLY CLEAR. HIGHS 72 TO 78. LOWS
41 TO 51.
WEDNESDAY
SUNNY. HIGHS 73 TO 79.
WEDNESDAY NIGHT THROUGH FRIDAY
MOSTLY CLEAR. LOWS 41 TO 51.
HIGHS 71 TO 81.
FRIDAY NIGHT
INCREASING CLOUDS. PATCHY FOG AFTER MIDNIGHT.
LOWS 39 TO 49.
SATURDAY
PATCHY FOG IN THE MORNING. SUNNY. HIGHS 71 TO 76.
=
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