051
FPUS55 KBOI 181833
ZFPBOI
ZONE FORECASTS FOR SOUTHWEST IDAHO/SOUTHEAST OREGON
NATIONAL WEATHER SERVICE BOISE ID
1232 PM MDT WED MAR 18 2026
FORECAST UPDATED.
SPOT TEMPERATURES ARE FOR THE REST OF TODAY, TONIGHT, AND
THURSDAY.
IDZ011-190200-
WEST CENTRAL MOUNTAINS-
1232 PM MDT WED MAR 18 2026
REST OF TODAY
SUNNY. HIGHS 54 TO 67.
TONIGHT
MOSTLY CLEAR. LOWS 33 TO 45.
THURSDAY
SUNNY. HIGHS 56 TO 68.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS 37 TO 47.
FRIDAY
SUNNY. HIGHS 58 TO 70.
FRIDAY NIGHT
INCREASING CLOUDS. A SLIGHT CHANCE OF RAIN AFTER
MIDNIGHT. CHANCE OF RAIN 20 PERCENT. LOWS 38 TO 48.
SATURDAY
RAIN LIKELY. SNOW LIKELY IN THE AFTERNOON. CHANCE OF
PRECIPITATION 60 PERCENT. LITTLE SNOW ACCUMULATION EXPECTED.
COOLER WITH HIGHS 46 TO 58.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN AND SNOW IN
THE EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT. CHANCE OF
PRECIPITATION 30 PERCENT. COLDER WITH LOWS 22 TO 33.
SUNDAY AND SUNDAY NIGHT
PARTLY CLOUDY. HIGHS 45 TO 55. LOWS
27 TO 37.
MONDAY AND MONDAY NIGHT
MOSTLY CLOUDY. A SLIGHT CHANCE OF RAIN
AND SNOW. CHANCE OF PRECIPITATION 20 PERCENT. HIGHS 47 TO 57.
LOWS 33 TO 42.
TUESDAY
INCREASING CLOUDS. A CHANCE OF SNOW IN THE MORNING. A
CHANCE OF RAIN. CHANCE OF PRECIPITATION 50 PERCENT. HIGHS 48 TO
59.
TEMPERATURE
MCCALL 59 33 61
=
IDZ013-190200-
BOISE MOUNTAINS-
1232 PM MDT WED MAR 18 2026
REST OF TODAY
SUNNY. HIGHS 58 TO 73.
TONIGHT
CLEAR. LOWS 32 TO 47.
THURSDAY
SUNNY. HIGHS 60 TO 75.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS 34 TO 49.
FRIDAY
SUNNY. HIGHS 63 TO 77.
FRIDAY NIGHT
DECREASING CLOUDS. LOWS 34 TO 49.
SATURDAY
PARTLY CLOUDY. A CHANCE OF RAIN IN THE AFTERNOON.
CHANCE OF RAIN 30 PERCENT. COOLER WITH HIGHS 52 TO 66.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN IN THE
EVENING, THEN PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN AND SNOW
AFTER MIDNIGHT. CHANCE OF PRECIPITATION 30 PERCENT. COLDER WITH
LOWS 20 TO 35.
SUNDAY AND SUNDAY NIGHT
PARTLY CLOUDY. HIGHS 49 TO 61. LOWS
23 TO 38.
MONDAY AND MONDAY NIGHT
MOSTLY CLOUDY. A SLIGHT CHANCE OF RAIN
AND SNOW. CHANCE OF PRECIPITATION 20 PERCENT. HIGHS 51 TO 63.
LOWS 28 TO 43.
TUESDAY
PARTLY CLOUDY WITH A 30 PERCENT CHANCE OF RAIN. HIGHS
54 TO 68.
TEMPERATURE
IDAHO CITY 74 41 75
=
IDZ028-190200-
CAMAS PRAIRIE-
1232 PM MDT WED MAR 18 2026
REST OF TODAY
SUNNY. HIGHS 69 TO 74. WEST WINDS 10 TO 15 MPH.
TONIGHT
MOSTLY CLEAR. LOWS 39 TO 44. NORTHWEST WINDS 10 TO
15 MPH.
THURSDAY
SUNNY. HIGHS 70 TO 75. LIGHT WINDS IN THE MORNING,
BECOMING WEST 10 TO 15 MPH WITH GUSTS TO 25 MPH IN THE AFTERNOON.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS 40 TO 45. NORTHWEST WINDS
10 TO 15 MPH IN THE EVENING, BECOMING LIGHT AFTER MIDNIGHT.
FRIDAY
SUNNY. HIGHS 72 TO 77. LIGHT WINDS IN THE MORNING,
BECOMING SOUTHWEST AROUND 10 MPH WITH GUSTS TO 20 MPH IN THE
AFTERNOON.
FRIDAY NIGHT AND SATURDAY
PARTLY CLOUDY. LOWS 42 TO 47. HIGHS
63 TO 68. BREEZY.
SATURDAY NIGHT
DECREASING CLOUDS. COLDER WITH LOWS 29 TO 34.
BREEZY.
SUNDAY AND SUNDAY NIGHT
PARTLY CLOUDY. HIGHS 57 TO 62. LOWS
30 TO 35.
MONDAY AND MONDAY NIGHT
MOSTLY CLOUDY. HIGHS 58 TO 63. LOWS
35 TO 40.
TUESDAY
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN. HIGHS
63 TO 68.
TEMPERATURE
FAIRFIELD 71 40 72
=
IDZ033-190200-
UPPER WEISER RIVER-
1232 PM MDT WED MAR 18 2026
REST OF TODAY
SUNNY. HIGHS 68 TO 73. LIGHT WINDS.
TONIGHT
MOSTLY CLEAR. LOWS 42 TO 47. LIGHT WINDS.
THURSDAY
SUNNY. HIGHS 68 TO 73. LIGHT WINDS.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS 45 TO 50. LIGHT WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS 70 TO 75. LIGHT WINDS.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS 46 TO 51.
SATURDAY
MOSTLY CLOUDY WITH A 40 PERCENT CHANCE OF RAIN.
COOLER WITH HIGHS 59 TO 64.
SATURDAY NIGHT
PARTLY CLOUDY. A SLIGHT CHANCE OF RAIN IN THE
EVENING. CHANCE OF RAIN 20 PERCENT. MUCH COLDER WITH LOWS 31 TO
36.
SUNDAY AND SUNDAY NIGHT
PARTLY CLOUDY. HIGHS 56 TO 61. LOWS
35 TO 40.
MONDAY
MOSTLY CLOUDY. HIGHS 57 TO 62.
MONDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS 40 TO 45.
TUESDAY
DECREASING CLOUDS. A 40 PERCENT CHANCE OF RAIN. HIGHS
60 TO 65.
TEMPERATURE
COUNCIL 71 45 71
CAMBRIDGE 72 43 72
=
ORZ064-190200-
OREGON LOWER TREASURE VALLEY-
1232 PM MDT WED MAR 18 2026 /1132 AM PDT WED MAR 18 2026/
REST OF TODAY
SUNNY. HIGHS 73 TO 78. LIGHT WINDS.
TONIGHT
MOSTLY CLEAR. LOWS 41 TO 47. LIGHT WINDS.
THURSDAY
SUNNY. HIGHS 75 TO 80. SOUTH WINDS UP TO 10 MPH.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS 44 TO 50. SOUTHEAST WINDS
AROUND 10 MPH IN THE EVENING, BECOMING LIGHT AFTER MIDNIGHT.
FRIDAY
MOSTLY SUNNY. HIGHS 76 TO 81. LIGHT WINDS.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS 47 TO 52.
SATURDAY
MOSTLY CLOUDY. A SLIGHT CHANCE OF RAIN IN THE
AFTERNOON. CHANCE OF RAIN 20 PERCENT. COOLER WITH HIGHS 62 TO 67.
SATURDAY NIGHT THROUGH SUNDAY NIGHT
PARTLY CLOUDY. LOWS 33 TO
41. HIGHS 59 TO 64.
MONDAY AND MONDAY NIGHT
MOSTLY CLOUDY. HIGHS 59 TO 64. LOWS
41 TO 46.
TUESDAY
MOSTLY CLOUDY. A CHANCE OF RAIN, MAINLY IN THE
AFTERNOON. CHANCE OF RAIN 30 PERCENT. HIGHS 65 TO 70.
TEMPERATURE
ONTARIO 75 41 77
=
IDZ012-190200-
LOWER TREASURE VALLEY-
1232 PM MDT WED MAR 18 2026
REST OF TODAY
SUNNY. HIGHS 73 TO 78. LIGHT WINDS.
TONIGHT
MOSTLY CLEAR. LOWS 43 TO 48. LIGHT WINDS.
THURSDAY
SUNNY. HIGHS 75 TO 80. LIGHT WINDS.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS 46 TO 51. LIGHT WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS 76 TO 81. LIGHT WINDS.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS 48 TO 53.
SATURDAY
MOSTLY CLOUDY. A SLIGHT CHANCE OF RAIN IN THE
AFTERNOON. CHANCE OF RAIN 20 PERCENT. COOLER WITH HIGHS 63 TO 68.
SATURDAY NIGHT
DECREASING CLOUDS. MUCH COLDER WITH LOWS 33 TO
38.
SUNDAY AND SUNDAY NIGHT
PARTLY CLOUDY. HIGHS 59 TO 64. LOWS
36 TO 41.
MONDAY AND MONDAY NIGHT
MOSTLY CLOUDY. HIGHS 60 TO 65. LOWS
42 TO 47.
TUESDAY
MOSTLY CLOUDY. A CHANCE OF RAIN, MAINLY IN THE
AFTERNOON. CHANCE OF RAIN 30 PERCENT. HIGHS 66 TO 72.
TEMPERATURE
CALDWELL 76 43 78
=
IDZ014-190200-
UPPER TREASURE VALLEY-
1232 PM MDT WED MAR 18 2026
REST OF TODAY
SUNNY. HIGHS 75 TO 80. NORTHEAST WINDS UP TO
10 MPH.
TONIGHT
MOSTLY CLEAR. LOWS 43 TO 48. NORTHEAST WINDS UP TO
10 MPH.
THURSDAY
SUNNY. HIGHS 77 TO 82. NORTHEAST WINDS UP TO 10 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS 45 TO 51. EAST WINDS AROUND
10 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS 80 TO 85. SOUTHEAST WINDS AROUND
10 MPH.
FRIDAY NIGHT
DECREASING CLOUDS. LOWS 47 TO 52.
SATURDAY AND SATURDAY NIGHT
MOSTLY CLOUDY. NOT AS WARM. HIGHS
67 TO 72. LOWS 34 TO 39. BREEZY.
SUNDAY AND SUNDAY NIGHT
PARTLY CLOUDY. HIGHS 60 TO 65. LOWS
36 TO 41.
MONDAY AND MONDAY NIGHT
MOSTLY CLOUDY. HIGHS 63 TO 68. LOWS
41 TO 46.
TUESDAY
DECREASING CLOUDS. A 20 PERCENT CHANCE OF RAIN. HIGHS
71 TO 77.
TEMPERATURE
BOISE 76 48 77
MOUNTAIN HOME 78 43 79
=
IDZ016-190200-
WESTERN MAGIC VALLEY-
1232 PM MDT WED MAR 18 2026
REST OF TODAY
SUNNY. HIGHS 75 TO 80. WEST WINDS AROUND 10 MPH
WITH GUSTS TO 20 MPH.
TONIGHT
MOSTLY CLEAR. LOWS 43 TO 48. NORTHWEST WINDS AROUND
10 MPH IN THE EVENING, SHIFTING TO SOUTHEAST AFTER MIDNIGHT.
THURSDAY
SUNNY. HIGHS 76 TO 81. SOUTH WINDS UP TO 10 MPH IN
THE MORNING, SHIFTING TO WEST AROUND 10 MPH IN THE AFTERNOON.
GUSTS TO 20 MPH.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS 45 TO 50. NORTHWEST WINDS
AROUND 10 MPH IN THE EVENING, BECOMING LIGHT AFTER MIDNIGHT.
GUSTS TO 20 MPH.
FRIDAY
SUNNY. HIGHS 80 TO 85. SOUTHEAST WINDS AROUND 10 MPH IN
THE MORNING, SHIFTING TO NORTHWEST IN THE AFTERNOON.
FRIDAY NIGHT AND SATURDAY
PARTLY CLOUDY. NOT AS WARM. LOWS
47 TO 52. HIGHS 69 TO 74. BREEZY.
SATURDAY NIGHT
MOSTLY CLOUDY. COLDER WITH LOWS 36 TO 41.
BREEZY.
SUNDAY AND SUNDAY NIGHT
PARTLY CLOUDY. COOLER. HIGHS 59 TO 64.
LOWS 35 TO 40.
MONDAY AND MONDAY NIGHT
INCREASING CLOUDS. HIGHS 64 TO 69.
LOWS 41 TO 46.
TUESDAY
MOSTLY CLOUDY IN THE MORNING, THEN BECOMING PARTLY
SUNNY. HIGHS 71 TO 76.
TEMPERATURE
JEROME 77 45 77
TWIN FALLS 78 47 78
=
IDZ029-190200-
OWYHEE MOUNTAINS-
1232 PM MDT WED MAR 18 2026
REST OF TODAY
SUNNY. HIGHS 70 TO 76.
TONIGHT
MOSTLY CLEAR. LOWS 44 TO 50.
THURSDAY
SUNNY. HIGHS 71 TO 77.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS 47 TO 52.
FRIDAY
MOSTLY SUNNY. HIGHS 74 TO 80.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS 46 TO 52.
SATURDAY
INCREASING CLOUDS. COOLER WITH HIGHS 59 TO 65.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN IN
THE EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT. CHANCE OF RAIN
20 PERCENT. COLDER WITH LOWS 31 TO 37. BREEZY.
SUNDAY AND SUNDAY NIGHT
PARTLY CLOUDY. HIGHS 53 TO 60. LOWS
36 TO 41.
MONDAY AND MONDAY NIGHT
MOSTLY CLOUDY. HIGHS 57 TO 65. LOWS
41 TO 46.
TUESDAY
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN. HIGHS
66 TO 71. BREEZY.
=
IDZ015-190200-
SOUTHWEST HIGHLANDS-
1232 PM MDT WED MAR 18 2026
REST OF TODAY
SUNNY. HIGHS 75 TO 80.
TONIGHT
MOSTLY CLEAR. LOWS 42 TO 48.
THURSDAY
SUNNY. HIGHS 75 TO 80.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS 42 TO 49.
FRIDAY
SUNNY. HIGHS 79 TO 84.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS 43 TO 50.
SATURDAY
PARTLY SUNNY. COOLER WITH HIGHS 67 TO 72.
SATURDAY NIGHT
MOSTLY CLOUDY. A SLIGHT CHANCE OF RAIN IN THE
EVENING. CHANCE OF RAIN 20 PERCENT. COLDER WITH LOWS 33 TO 38.
BREEZY.
SUNDAY AND SUNDAY NIGHT
PARTLY CLOUDY. HIGHS 58 TO 64. LOWS
35 TO 40.
MONDAY AND MONDAY NIGHT
MOSTLY CLOUDY. HIGHS 65 TO 70. LOWS
41 TO 46.
TUESDAY
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN. HIGHS
70 TO 75. BREEZY.
=
IDZ030-190200-
SOUTHERN TWIN FALLS COUNTY-
1232 PM MDT WED MAR 18 2026
REST OF TODAY
SUNNY. HIGHS 75 TO 80.
TONIGHT
MOSTLY CLEAR. LOWS 46 TO 51.
THURSDAY
SUNNY. HIGHS 76 TO 81.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS 47 TO 52.
FRIDAY
SUNNY. HIGHS 79 TO 84.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS 48 TO 53.
SATURDAY
MOSTLY SUNNY. COOLER WITH HIGHS 68 TO 73.
SATURDAY NIGHT
MOSTLY CLOUDY. COLDER WITH LOWS 34 TO 39.
SUNDAY AND SUNDAY NIGHT
PARTLY CLOUDY. COOLER. HIGHS 58 TO 63.
LOWS 36 TO 41.
MONDAY AND MONDAY NIGHT
MOSTLY CLOUDY. HIGHS 65 TO 70. LOWS
43 TO 48.
TUESDAY
PARTLY SUNNY. HIGHS 71 TO 76.
=
ORZ062-190200-
BAKER COUNTY-
1132 AM PDT WED MAR 18 2026
REST OF TODAY
SUNNY. HIGHS 68 TO 74. SOUTHEAST WINDS UP TO
10 MPH.
TONIGHT
MOSTLY CLEAR. LOWS 38 TO 47. EAST WINDS UP TO 10 MPH
IN THE EVENING, BECOMING LIGHT AFTER MIDNIGHT.
THURSDAY
MOSTLY SUNNY. HIGHS 70 TO 75. LIGHT WINDS IN THE
MORNING, BECOMING SOUTH 10 TO 15 MPH IN THE AFTERNOON.
THURSDAY NIGHT
DECREASING CLOUDS. LOWS 41 TO 50. SOUTHWEST
WINDS UP TO 10 MPH. GUSTS TO 20 MPH IN THE EVENING.
FRIDAY
MOSTLY SUNNY. HIGHS 71 TO 76. LIGHT WINDS IN THE
MORNING, BECOMING SOUTH 10 TO 15 MPH IN THE AFTERNOON.
FRIDAY NIGHT
MOSTLY CLOUDY. A SLIGHT CHANCE OF RAIN AFTER
MIDNIGHT. CHANCE OF RAIN 20 PERCENT. LOWS 39 TO 48.
SATURDAY
DECREASING CLOUDS. A CHANCE OF RAIN. A CHANCE OF SNOW
IN THE AFTERNOON. CHANCE OF PRECIPITATION 30 PERCENT. MUCH COOLER
WITH HIGHS 52 TO 61.
SATURDAY NIGHT AND SUNDAY
DECREASING CLOUDS. LOWS 24 TO 32.
HIGHS 53 TO 59.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS 29 TO 38.
MONDAY
MOSTLY CLOUDY. HIGHS 55 TO 61.
MONDAY NIGHT
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN.
LOWS 35 TO 43.
TUESDAY
INCREASING CLOUDS. A 40 PERCENT CHANCE OF RAIN. HIGHS
58 TO 63.
TEMPERATURE
BAKER CITY 73 38 74
=
ORZ061-190200-
HARNEY COUNTY-
1132 AM PDT WED MAR 18 2026
REST OF TODAY
SUNNY. HIGHS 72 TO 78. SOUTHWEST WINDS 10 TO
15 MPH.
TONIGHT
MOSTLY CLEAR. LOWS 33 TO 46. WEST WINDS 10 TO 15 MPH.
THURSDAY
SUNNY. HIGHS 72 TO 79. LIGHT WINDS IN THE MORNING,
BECOMING SOUTHWEST 10 TO 15 MPH WITH GUSTS TO 25 MPH IN THE
AFTERNOON.
THURSDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS 37 TO 49. WEST WINDS 10 TO 15 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS 74 TO 81. LIGHT WINDS IN THE
MORNING, BECOMING SOUTHWEST 10 TO 15 MPH IN THE AFTERNOON.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS 41 TO 48.
SATURDAY
MOSTLY CLOUDY. A SLIGHT CHANCE OF RAIN IN THE
AFTERNOON. CHANCE OF RAIN 20 PERCENT. MUCH COOLER WITH HIGHS
57 TO 65.
SATURDAY NIGHT AND SUNDAY
PARTLY CLOUDY. LOWS 24 TO 34. HIGHS
57 TO 63.
SUNDAY NIGHT
INCREASING CLOUDS. LOWS 29 TO 39.
MONDAY AND MONDAY NIGHT
MOSTLY CLOUDY. HIGHS 61 TO 68. LOWS
35 TO 44.
TUESDAY
MOSTLY CLOUDY. A CHANCE OF RAIN, MAINLY IN THE
AFTERNOON. CHANCE OF RAIN 30 PERCENT. HIGHS 66 TO 72.
TEMPERATURE
BURNS 75 33 76
=
ORZ063-190200-
MALHEUR COUNTY-
1232 PM MDT WED MAR 18 2026 /1132 AM PDT WED MAR 18 2026/
REST OF TODAY
SUNNY. HIGHS 73 TO 80. SOUTHWEST WINDS 10 TO
15 MPH.
TONIGHT
MOSTLY CLEAR. LOWS 40 TO 48. SOUTHWEST WINDS 10 TO
15 MPH IN THE EVENING, BECOMING LIGHT AFTER MIDNIGHT.
THURSDAY
SUNNY. HIGHS 73 TO 81. LIGHT WINDS IN THE MORNING,
BECOMING SOUTHWEST 10 TO 15 MPH IN THE AFTERNOON.
THURSDAY NIGHT
DECREASING CLOUDS. LOWS 42 TO 50. SOUTHWEST
WINDS UP TO 10 MPH. GUSTS TO 20 MPH IN THE EVENING.
FRIDAY
MOSTLY SUNNY. HIGHS 75 TO 83. LIGHT WINDS IN THE
MORNING, BECOMING SOUTHWEST 10 TO 15 MPH IN THE AFTERNOON.
FRIDAY NIGHT AND SATURDAY
MOSTLY CLOUDY. MUCH COOLER. LOWS
43 TO 51. HIGHS 59 TO 69.
SATURDAY NIGHT
DECREASING CLOUDS. MUCH COLDER WITH LOWS 29 TO
37.
SUNDAY AND SUNDAY NIGHT
PARTLY CLOUDY. HIGHS 57 TO 65. LOWS
34 TO 40.
MONDAY AND MONDAY NIGHT
MOSTLY CLOUDY. HIGHS 59 TO 69. LOWS
40 TO 46.
TUESDAY
MOSTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN. HIGHS
65 TO 75.
=
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