394
FPUS55 KBOI 272031
ZFPBOI
ZONE FORECASTS FOR SOUTHWEST IDAHO/SOUTHEAST OREGON
NATIONAL WEATHER SERVICE BOISE ID
230 PM MDT SUN SEP 27 2026
SPOT TEMPERATURES ARE FOR TONIGHT, MONDAY, MONDAY NIGHT, AND
TUESDAY.
IDZ011-280400-
WEST CENTRAL MOUNTAINS-
230 PM MDT SUN SEP 27 2026
TONIGHT
DECREASING CLOUDS. AREAS OF FOG AFTER MIDNIGHT. LOWS
35 TO 45.
MONDAY
AREAS OF FOG IN THE MORNING. SUNNY. HIGHS 59 TO 72.
MONDAY NIGHT
MOSTLY CLEAR. AREAS OF FOG AFTER MIDNIGHT. LOWS
35 TO 45.
TUESDAY
AREAS OF FOG IN THE MORNING. SUNNY. HIGHS 61 TO 74.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 37 TO 47.
WEDNESDAY
SUNNY. HIGHS 61 TO 75.
WEDNESDAY NIGHT AND THURSDAY
MOSTLY CLEAR. AREAS OF FOG
THROUGH THE DAY. LOWS 36 TO 46. HIGHS 63 TO 75.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS 40 TO 50.
FRIDAY THROUGH SATURDAY
PARTLY CLOUDY. HIGHS 64 TO 76. LOWS
40 TO 50.
SATURDAY NIGHT AND SUNDAY
MOSTLY CLEAR. LOWS 38 TO 48. HIGHS
66 TO 78.
TEMPERATURE
MCCALL 36 66 35 68
=
IDZ013-280400-
BOISE MOUNTAINS-
230 PM MDT SUN SEP 27 2026
TONIGHT
MOSTLY CLOUDY. LOWS 35 TO 49.
MONDAY
DECREASING CLOUDS. A SLIGHT CHANCE OF RAIN SHOWERS IN
THE MORNING. PATCHY FOG IN THE MORNING. CHANCE OF RAIN
20 PERCENT. HIGHS 60 TO 74.
MONDAY NIGHT
MOSTLY CLEAR. LOWS 32 TO 47.
TUESDAY
SUNNY. HIGHS 63 TO 76.
TUESDAY NIGHT
CLEAR. LOWS 35 TO 49.
WEDNESDAY
SUNNY. HIGHS 64 TO 78.
WEDNESDAY NIGHT THROUGH THURSDAY NIGHT
MOSTLY CLEAR. LOWS
33 TO 48. HIGHS 66 TO 80.
FRIDAY THROUGH SATURDAY
PARTLY CLOUDY. HIGHS 67 TO 82. LOWS
35 TO 50.
SATURDAY NIGHT AND SUNDAY
MOSTLY CLEAR. LOWS 34 TO 49. HIGHS
68 TO 82.
TEMPERATURE
IDAHO CITY 40 73 36 75
=
IDZ028-280400-
CAMAS PRAIRIE-
230 PM MDT SUN SEP 27 2026
TONIGHT
MOSTLY CLOUDY. LOWS 42 TO 47. WEST WINDS UP TO 10 MPH.
MONDAY
PARTLY SUNNY IN THE MORNING, THEN CLEARING. HIGHS 67 TO
72. WEST WINDS 10 TO 15 MPH. GUSTS TO 25 MPH IN THE AFTERNOON.
MONDAY NIGHT
MOSTLY CLEAR. LOWS 32 TO 37. WEST WINDS 10 TO
15 MPH. GUSTS TO 25 MPH IN THE EVENING.
TUESDAY
SUNNY. HIGHS 69 TO 74. LIGHT WINDS IN THE MORNING,
BECOMING SOUTHWEST 10 TO 15 MPH WITH GUSTS TO 25 MPH IN THE
AFTERNOON.
TUESDAY NIGHT
CLEAR. LOWS 35 TO 40. WEST WINDS 10 TO 15 MPH.
GUSTS TO 25 MPH IN THE EVENING.
WEDNESDAY
SUNNY. HIGHS 71 TO 76. BREEZY.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS 35 TO 40.
THURSDAY
SUNNY. HIGHS 71 TO 76.
THURSDAY NIGHT AND FRIDAY
MOSTLY CLEAR. LOWS 39 TO 44. HIGHS
73 TO 78.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS 39 TO 44.
SATURDAY THROUGH SUNDAY
MOSTLY CLEAR. HIGHS 72 TO 77. LOWS
38 TO 43.
TEMPERATURE
FAIRFIELD 43 70 32 72
=
IDZ033-280400-
UPPER WEISER RIVER-
230 PM MDT SUN SEP 27 2026
TONIGHT
DECREASING CLOUDS. LOWS 44 TO 49. NORTH WINDS UP TO
10 MPH.
MONDAY
SUNNY. HIGHS 69 TO 76. NORTHWEST WINDS UP TO 10 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS 43 TO 48. NORTH WINDS UP TO
10 MPH.
TUESDAY
SUNNY. HIGHS 70 TO 77. LIGHT WINDS.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 46 TO 51. NORTHWEST WINDS UP
TO 10 MPH.
WEDNESDAY THROUGH THURSDAY NIGHT
MOSTLY CLEAR. HIGHS 72 TO 79.
LOWS 45 TO 53.
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 45 75 45 76
CAMBRIDGE 45 75 44 77
=
ORZ064-280400-
OREGON LOWER TREASURE VALLEY-
230 PM MDT SUN SEP 27 2026 /130 PM PDT SUN SEP 27 2026/
TONIGHT
DECREASING CLOUDS. LOWS 45 TO 50. NORTHWEST WINDS
AROUND 10 MPH.
MONDAY
SUNNY. HIGHS 74 TO 79. NORTHWEST WINDS AROUND 10 MPH
WITH GUSTS TO 20 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS 43 TO 48. NORTHWEST WINDS
AROUND 10 MPH WITH GUSTS TO 20 MPH.
TUESDAY
SUNNY. HIGHS 76 TO 81. WEST WINDS UP TO 10 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 46 TO 51. NORTHWEST WINDS UP
TO 10 MPH.
WEDNESDAY
SUNNY. HIGHS 77 TO 82.
WEDNESDAY NIGHT THROUGH THURSDAY NIGHT
MOSTLY CLEAR. LOWS
43 TO 52. HIGHS 76 TO 81.
FRIDAY THROUGH SATURDAY
PARTLY CLOUDY. HIGHS 77 TO 82. LOWS
46 TO 52.
SATURDAY NIGHT AND SUNDAY
MOSTLY CLEAR. LOWS 44 TO 51. HIGHS
77 TO 82.
TEMPERATURE
ONTARIO 45 77 43 78
=
IDZ012-280400-
LOWER TREASURE VALLEY-
230 PM MDT SUN SEP 27 2026
TONIGHT
MOSTLY CLOUDY. LOWS 45 TO 50. NORTHWEST WINDS 10 TO
15 MPH.
MONDAY
PATCHY FOG IN THE MORNING. SUNNY. HIGHS 73 TO 78.
NORTHWEST WINDS 10 TO 15 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS 43 TO 48. NORTHWEST WINDS
10 TO 15 MPH.
TUESDAY
SUNNY. HIGHS 74 TO 79. NORTHWEST WINDS UP TO 10 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 46 TO 51. NORTHWEST WINDS UP
TO 10 MPH WITH GUSTS TO 20 MPH.
WEDNESDAY
SUNNY. HIGHS 76 TO 81.
WEDNESDAY NIGHT THROUGH THURSDAY NIGHT
MOSTLY CLEAR. LOWS
45 TO 52. HIGHS 76 TO 81.
FRIDAY AND FRIDAY NIGHT
PARTLY CLOUDY. HIGHS 77 TO 82. LOWS
48 TO 53.
SATURDAY THROUGH SUNDAY
MOSTLY CLEAR. HIGHS 76 TO 83. LOWS
46 TO 51.
TEMPERATURE
CALDWELL 47 75 44 77
=
IDZ014-280400-
UPPER TREASURE VALLEY-
230 PM MDT SUN SEP 27 2026
TONIGHT
MOSTLY CLOUDY. LOWS 47 TO 52. BREEZY. NORTHWEST WINDS
10 TO 20 MPH WITH GUSTS TO 30 MPH.
MONDAY
PARTLY SUNNY IN THE MORNING, THEN CLEARING. HIGHS 71 TO
76. BREEZY. NORTHWEST WINDS 10 TO 20 MPH WITH GUSTS TO 30 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS 43 TO 48. 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.
TUESDAY
SUNNY. HIGHS 73 TO 78. NORTHWEST WINDS 10 TO 15 MPH.
GUSTS TO 30 MPH IN THE AFTERNOON.
TUESDAY NIGHT
CLEAR. LOWS 46 TO 51. NORTHWEST WINDS 10 TO
15 MPH. GUSTS TO 30 MPH IN THE EVENING.
WEDNESDAY
SUNNY. HIGHS 75 TO 80. BREEZY.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS 43 TO 50.
THURSDAY
SUNNY. HIGHS 77 TO 82.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS 46 TO 53.
FRIDAY THROUGH SATURDAY
PARTLY CLOUDY. HIGHS 76 TO 85. LOWS
47 TO 53.
SATURDAY NIGHT AND SUNDAY
MOSTLY CLEAR. LOWS 45 TO 51. HIGHS
78 TO 83.
TEMPERATURE
BOISE 49 74 48 75
MOUNTAIN HOME 49 74 44 75
=
IDZ016-280400-
WESTERN MAGIC VALLEY-
230 PM MDT SUN SEP 27 2026
TONIGHT
MOSTLY CLOUDY. LOWS 47 TO 52. BREEZY. WEST WINDS 10 TO
20 MPH WITH GUSTS TO 30 MPH.
MONDAY
MOSTLY SUNNY. HIGHS 68 TO 73. WEST WINDS 10 TO 15 MPH
WITH GUSTS TO 30 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS 42 TO 47. SOUTHWEST WINDS
10 TO 15 MPH. GUSTS TO 30 MPH IN THE EVENING.
TUESDAY
SUNNY. HIGHS 69 TO 74. WEST WINDS 10 TO 15 MPH. GUSTS
TO 30 MPH IN THE AFTERNOON.
TUESDAY NIGHT
CLEAR. LOWS 45 TO 50. BREEZY. WEST WINDS 10 TO
20 MPH WITH GUSTS TO 30 MPH.
WEDNESDAY
SUNNY. HIGHS 72 TO 77. BREEZY.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS 43 TO 48. BREEZY.
THURSDAY
SUNNY. HIGHS 74 TO 79.
THURSDAY NIGHT AND FRIDAY
MOSTLY CLEAR. LOWS 46 TO 51. HIGHS
77 TO 82.
FRIDAY NIGHT AND SATURDAY
PARTLY CLOUDY. LOWS 47 TO 52. HIGHS
74 TO 79.
SATURDAY NIGHT AND SUNDAY
MOSTLY CLEAR. LOWS 44 TO 49. HIGHS
76 TO 81.
TEMPERATURE
JEROME 49 68 45 69
TWIN FALLS 49 69 45 70
=
IDZ029-280400-
OWYHEE MOUNTAINS-
230 PM MDT SUN SEP 27 2026
TONIGHT
MOSTLY CLOUDY. ISOLATED RAIN SHOWERS AFTER MIDNIGHT.
CHANCE OF RAIN 20 PERCENT. LOWS 42 TO 49.
MONDAY
PARTLY SUNNY IN THE MORNING, THEN CLEARING. HIGHS 65 TO
70.
MONDAY NIGHT
MOSTLY CLEAR. LOWS 39 TO 49.
TUESDAY
SUNNY. HIGHS 69 TO 74.
TUESDAY NIGHT
CLEAR. LOWS 42 TO 51.
WEDNESDAY AND WEDNESDAY NIGHT
CLEAR. HIGHS 68 TO 75. LOWS
41 TO 50.
THURSDAY AND THURSDAY NIGHT
MOSTLY CLEAR. HIGHS 70 TO 79. LOWS
46 TO 52.
FRIDAY THROUGH SATURDAY
PARTLY CLOUDY. HIGHS 70 TO 80. LOWS
46 TO 53.
SATURDAY NIGHT AND SUNDAY
MOSTLY CLEAR. LOWS 43 TO 51. HIGHS
72 TO 80.
=
IDZ015-280400-
SOUTHWEST HIGHLANDS-
230 PM MDT SUN SEP 27 2026
TONIGHT
MOSTLY CLOUDY WITH ISOLATED RAIN SHOWERS. CHANCE OF
RAIN 20 PERCENT. LOWS 42 TO 48. BREEZY.
MONDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN SHOWERS IN
THE MORNING, THEN SUNNY IN THE AFTERNOON. CHANCE OF RAIN
20 PERCENT. HIGHS 65 TO 70.
MONDAY NIGHT
MOSTLY CLEAR. LOWS 37 TO 44.
TUESDAY
SUNNY. HIGHS 68 TO 73.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 41 TO 47.
WEDNESDAY THROUGH THURSDAY
CLEAR. HIGHS 71 TO 79. LOWS 40 TO
45.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS 45 TO 50.
FRIDAY THROUGH SATURDAY
PARTLY CLOUDY. HIGHS 74 TO 83. LOWS
45 TO 50.
SATURDAY NIGHT AND SUNDAY
MOSTLY CLEAR. LOWS 43 TO 48. HIGHS
76 TO 81.
=
IDZ030-280400-
SOUTHERN TWIN FALLS COUNTY-
230 PM MDT SUN SEP 27 2026
TONIGHT
MOSTLY CLOUDY. LOWS 44 TO 49.
MONDAY
SUNNY. HIGHS 65 TO 70.
MONDAY NIGHT
MOSTLY CLEAR. LOWS 40 TO 45.
TUESDAY
SUNNY. HIGHS 68 TO 73.
TUESDAY NIGHT
CLEAR. LOWS 43 TO 48. BREEZY.
WEDNESDAY THROUGH THURSDAY
CLEAR. HIGHS 70 TO 78. LOWS 41 TO
46. BREEZY.
THURSDAY NIGHT AND FRIDAY
MOSTLY CLEAR. LOWS 46 TO 51. HIGHS
77 TO 82.
FRIDAY NIGHT AND SATURDAY
PARTLY CLOUDY. LOWS 47 TO 52. HIGHS
73 TO 78.
SATURDAY NIGHT AND SUNDAY
MOSTLY CLEAR. LOWS 44 TO 49. HIGHS
75 TO 80.
=
ORZ062-280400-
BAKER COUNTY-
130 PM PDT SUN SEP 27 2026
TONIGHT
DECREASING CLOUDS. PATCHY FOG AFTER MIDNIGHT. LOWS
32 TO 43. NORTHWEST WINDS UP TO 10 MPH.
MONDAY
AREAS OF FOG IN THE MORNING. SUNNY. HIGHS 67 TO 74.
NORTHWEST WINDS UP TO 10 MPH WITH GUSTS TO 20 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS 30 TO 42. NORTHWEST WINDS
10 TO 15 MPH. GUSTS TO 25 MPH IN THE EVENING.
TUESDAY
SUNNY. HIGHS 70 TO 76. WEST WINDS UP TO 10 MPH.
TUESDAY NIGHT
DECREASING CLOUDS. PATCHY FOG AFTER MIDNIGHT.
LOWS 36 TO 46. NORTHWEST WINDS UP TO 10 MPH WITH GUSTS TO 20 MPH.
WEDNESDAY
AREAS OF FOG IN THE MORNING. SUNNY. HIGHS 69 TO 76.
WEDNESDAY NIGHT THROUGH THURSDAY NIGHT
MOSTLY CLEAR. LOWS
34 TO 49. HIGHS 71 TO 78.
FRIDAY AND FRIDAY NIGHT
PARTLY CLOUDY. HIGHS 72 TO 79. LOWS
37 TO 50.
SATURDAY THROUGH SUNDAY
MOSTLY CLEAR. HIGHS 71 TO 80. LOWS
36 TO 49.
TEMPERATURE
BAKER CITY 32 70 30 73
=
ORZ061-280400-
HARNEY COUNTY-
130 PM PDT SUN SEP 27 2026
TONIGHT
MOSTLY CLOUDY. SCATTERED RAIN SHOWERS THIS EVENING.
PATCHY FOG AFTER MIDNIGHT. CHANCE OF RAIN 30 PERCENT. LOWS 34 TO
43. SOUTH WINDS 10 TO 15 MPH THIS EVENING, SHIFTING TO NORTHWEST
AFTER MIDNIGHT.
MONDAY
PATCHY FOG IN THE MORNING. SUNNY. HIGHS 64 TO 72. WEST
WINDS 10 TO 15 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS 31 TO 40. NORTHWEST WINDS
10 TO 15 MPH.
TUESDAY
SUNNY. HIGHS 69 TO 76. WEST WINDS UP TO 10 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 37 TO 44. NORTHWEST WINDS
10 TO 15 MPH.
WEDNESDAY
PATCHY FOG IN THE MORNING. SUNNY. HIGHS 70 TO 76.
WEDNESDAY NIGHT THROUGH THURSDAY NIGHT
MOSTLY CLEAR. LOWS
35 TO 48. HIGHS 73 TO 80.
FRIDAY THROUGH SATURDAY
PARTLY CLOUDY. HIGHS 71 TO 80. LOWS
37 TO 47.
SATURDAY NIGHT AND SUNDAY
MOSTLY CLEAR. LOWS 36 TO 46. HIGHS
73 TO 81.
TEMPERATURE
BURNS 34 71 31 75
=
ORZ063-280400-
MALHEUR COUNTY-
230 PM MDT SUN SEP 27 2026 /130 PM PDT SUN SEP 27 2026/
TONIGHT
MOSTLY CLOUDY. LOWS 39 TO 49. NORTHWEST WINDS 10 TO
15 MPH.
MONDAY
SUNNY. HIGHS 69 TO 76. NORTHWEST WINDS 10 TO 15 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS 35 TO 45. NORTHWEST WINDS
10 TO 15 MPH.
TUESDAY
SUNNY. HIGHS 72 TO 79. WEST WINDS UP TO 10 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 40 TO 49. NORTHWEST WINDS UP
TO 10 MPH WITH GUSTS TO 20 MPH.
WEDNESDAY THROUGH THURSDAY NIGHT
MOSTLY CLEAR. HIGHS 73 TO 81.
LOWS 40 TO 50.
FRIDAY THROUGH SATURDAY
PARTLY CLOUDY. HIGHS 74 TO 83. LOWS
43 TO 52.
SATURDAY NIGHT AND SUNDAY
MOSTLY CLEAR. LOWS 40 TO 50. HIGHS
75 TO 82.
=
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