147
FPUS55 KBOI 172031
ZFPBOI
ZONE FORECASTS FOR SOUTHWEST IDAHO/SOUTHEAST OREGON
NATIONAL WEATHER SERVICE BOISE ID
230 PM MDT SUN MAY 17 2026
SPOT TEMPERATURES ARE FOR TONIGHT, MONDAY, MONDAY NIGHT, AND
TUESDAY.
IDZ011-180400-
WEST CENTRAL MOUNTAINS-
230 PM MDT SUN MAY 17 2026
TONIGHT
PARTLY CLOUDY WITH A CHANCE OF SNOW SHOWERS THIS
EVENING, THEN MOSTLY CLEAR AFTER MIDNIGHT. AREAS OF FOG AFTER
MIDNIGHT. CHANCE OF SNOW 30 PERCENT. LOWS 26 TO 34. BREEZY. GUSTS
TO 35 MPH THIS EVENING.
MONDAY
SUNNY. AREAS OF FOG IN THE MORNING. A SLIGHT CHANCE OF
RAIN SHOWERS IN THE AFTERNOON. CHANCE OF RAIN 20 PERCENT. HIGHS
48 TO 62.
MONDAY NIGHT
PARTLY CLOUDY. PATCHY FOG AFTER MIDNIGHT. LOWS
29 TO 39.
TUESDAY
PATCHY FOG IN THE MORNING. MOSTLY SUNNY. HIGHS 51 TO
66.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 33 TO 43.
WEDNESDAY
MOSTLY SUNNY. HIGHS 55 TO 70.
WEDNESDAY NIGHT
PARTLY CLOUDY. PATCHY FOG AFTER MIDNIGHT. LOWS
35 TO 45.
THURSDAY AND THURSDAY NIGHT
PARTLY CLOUDY. HIGHS 59 TO 73.
LOWS 37 TO 47.
FRIDAY AND FRIDAY NIGHT
MOSTLY CLEAR. HIGHS 61 TO 75. LOWS
38 TO 48.
SATURDAY AND SATURDAY NIGHT
PARTLY CLOUDY. HIGHS 65 TO 79.
LOWS 39 TO 49.
SUNDAY
SUNNY. HIGHS 64 TO 78.
TEMPERATURE
MCCALL 28 57 29 59
=
IDZ013-180400-
BOISE MOUNTAINS-
230 PM MDT SUN MAY 17 2026
TONIGHT
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN AND SNOW
SHOWERS THIS EVENING, THEN CLEAR AFTER MIDNIGHT. CHANCE OF
PRECIPITATION 20 PERCENT. LOWS 21 TO 36. BREEZY.
MONDAY
SUNNY. HIGHS 53 TO 67.
MONDAY NIGHT
PARTLY CLOUDY. LOWS 23 TO 38.
TUESDAY
PARTLY SUNNY IN THE MORNING, THEN CLEARING. HIGHS
53 TO 68.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 27 TO 42.
WEDNESDAY
MOSTLY SUNNY. HIGHS 60 TO 74.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS 30 TO 45.
THURSDAY AND THURSDAY NIGHT
PARTLY CLOUDY. HIGHS 63 TO 77.
LOWS 33 TO 48.
FRIDAY THROUGH SUNDAY
MOSTLY CLEAR. HIGHS 67 TO 82. LOWS 35 TO
50.
TEMPERATURE
IDAHO CITY 26 66 31 66
=
IDZ028-180400-
CAMAS PRAIRIE-
230 PM MDT SUN MAY 17 2026
TONIGHT
PARTLY CLOUDY THIS EVENING, THEN CLEARING. LOWS 25 TO
30. WINDY. NORTH WINDS 15 TO 25 MPH WITH GUSTS TO 40 MPH.
MONDAY
SUNNY. HIGHS 56 TO 61. NORTH WINDS 10 TO 15 MPH.
MONDAY NIGHT
DECREASING CLOUDS. LOWS 28 TO 33. NORTHWEST WINDS
10 TO 15 MPH IN THE EVENING, BECOMING LIGHT AFTER MIDNIGHT.
TUESDAY
PARTLY SUNNY IN THE MORNING, THEN CLEARING. HIGHS
59 TO 64. LIGHT WINDS IN THE MORNING, BECOMING SOUTHWEST 10 TO
15 MPH IN THE AFTERNOON.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 29 TO 35. WEST WINDS 10 TO
15 MPH IN THE EVENING, BECOMING LIGHT AFTER MIDNIGHT.
WEDNESDAY
MOSTLY SUNNY. HIGHS 66 TO 71.
WEDNESDAY NIGHT AND THURSDAY
MOSTLY CLEAR. LOWS 33 TO 38.
HIGHS 68 TO 73. BREEZY.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS 35 TO 40. BREEZY.
FRIDAY THROUGH SUNDAY
MOSTLY CLEAR. HIGHS 71 TO 80. LOWS 36 TO
44. BREEZY.
TEMPERATURE
FAIRFIELD 26 59 28 62
=
IDZ033-180400-
UPPER WEISER RIVER-
230 PM MDT SUN MAY 17 2026
TONIGHT
MOSTLY CLEAR. LOWS 35 TO 40. WINDY. NORTH WINDS 15 TO
25 MPH. GUSTS TO 40 MPH THIS EVENING, DECREASING TO 30 MPH AFTER
MIDNIGHT.
MONDAY
SUNNY. HIGHS 62 TO 68. NORTH WINDS 10 TO 15 MPH WITH
GUSTS TO 25 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS 37 TO 42. NORTH WINDS 10 TO
15 MPH.
TUESDAY
SUNNY. HIGHS 65 TO 71. NORTHEAST WINDS UP TO 10 MPH IN
THE MORNING, BECOMING LIGHT IN THE AFTERNOON.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 41 TO 46. LIGHT WINDS.
WEDNESDAY
MOSTLY SUNNY. HIGHS 69 TO 75.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS 43 TO 48.
THURSDAY
MOSTLY SUNNY. HIGHS 73 TO 79.
THURSDAY NIGHT THROUGH SATURDAY
MOSTLY CLEAR. LOWS 45 TO 51.
HIGHS 74 TO 84.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS 47 TO 52.
SUNDAY
SUNNY. HIGHS 77 TO 83.
TEMPERATURE
COUNCIL 37 66 38 70
CAMBRIDGE 37 68 38 70
=
ORZ064-180400-
OREGON LOWER TREASURE VALLEY-
230 PM MDT SUN MAY 17 2026 /130 PM PDT SUN MAY 17 2026/
...WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT /11 PM PDT/
TONIGHT...
TONIGHT
PATCHY BLOWING DUST THIS EVENING. MOSTLY CLEAR. LOWS
39 TO 44. WINDY. NORTH WINDS 20 TO 30 MPH WITH GUSTS TO 40 MPH
THIS EVENING, BECOMING NORTHWEST 10 TO 15 MPH WITH GUSTS TO
25 MPH AFTER MIDNIGHT.
MONDAY
SUNNY. HIGHS 66 TO 71. NORTH WINDS 10 TO 15 MPH WITH
GUSTS TO 25 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS 40 TO 45. NORTHWEST WINDS
10 TO 15 MPH. GUSTS TO 25 MPH IN THE EVENING.
TUESDAY
SUNNY. HIGHS 71 TO 76. LIGHT WINDS.
TUESDAY NIGHT
INCREASING CLOUDS. LOWS 44 TO 49. LIGHT WINDS.
WEDNESDAY
MOSTLY SUNNY. HIGHS 74 TO 79.
WEDNESDAY NIGHT THROUGH SUNDAY
MOSTLY CLEAR. LOWS 46 TO 55.
HIGHS 78 TO 88.
TEMPERATURE
ONTARIO 40 70 41 74
=
IDZ012-180400-
LOWER TREASURE VALLEY-
230 PM MDT SUN MAY 17 2026
...WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT /11 PM PDT/
TONIGHT...
TONIGHT
PATCHY BLOWING DUST THIS EVENING. MOSTLY CLEAR. LOWS
37 TO 42. WINDY. NORTH WINDS 20 TO 30 MPH THIS EVENING, BECOMING
NORTHWEST 10 TO 20 MPH AFTER MIDNIGHT. GUSTS TO 40 MPH.
MONDAY
SUNNY. HIGHS 66 TO 71. BREEZY. NORTHWEST WINDS 10 TO
20 MPH WITH GUSTS TO 30 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS 39 TO 44. NORTHWEST WINDS
10 TO 15 MPH. GUSTS TO 25 MPH IN THE EVENING.
TUESDAY
SUNNY. HIGHS 70 TO 75. LIGHT WINDS.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 42 TO 47. NORTHEAST WINDS UP
TO 10 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS 74 TO 79.
WEDNESDAY NIGHT THROUGH SUNDAY
MOSTLY CLEAR. LOWS 45 TO 55.
HIGHS 78 TO 88.
TEMPERATURE
CALDWELL 38 69 40 73
=
IDZ014-180400-
UPPER TREASURE VALLEY-
230 PM MDT SUN MAY 17 2026
...WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT /11 PM PDT/
TONIGHT...
TONIGHT
PARTLY CLOUDY THIS EVENING, THEN CLEARING. PATCHY
BLOWING DUST THIS EVENING. LOWS 34 TO 39. WINDY. NORTHWEST WINDS
20 TO 30 MPH WITH GUSTS TO 50 MPH.
MONDAY
SUNNY. HIGHS 65 TO 70. WINDY. NORTHWEST WINDS 15 TO
25 MPH WITH GUSTS TO 40 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS 37 TO 42. 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 69 TO 74. NORTH WINDS UP TO 10 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 39 TO 45. NORTH WINDS AROUND
10 MPH WITH GUSTS TO 20 MPH IN THE EVENING, BECOMING LIGHT AFTER
MIDNIGHT.
WEDNESDAY
MOSTLY SUNNY. HIGHS 74 TO 79.
WEDNESDAY NIGHT THROUGH FRIDAY NIGHT
MOSTLY CLEAR. LOWS 42 TO
51. HIGHS 78 TO 84.
SATURDAY THROUGH SUNDAY
MOSTLY CLEAR. HIGHS 84 TO 90. LOWS
48 TO 53. BREEZY.
TEMPERATURE
BOISE 38 68 42 72
MOUNTAIN HOME 36 68 37 72
=
IDZ016-180400-
WESTERN MAGIC VALLEY-
230 PM MDT SUN MAY 17 2026
...FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM
MDT MONDAY...
TONIGHT
MOSTLY CLOUDY THIS EVENING, THEN CLEARING. LOWS 31 TO
36. BREEZY. NORTHWEST WINDS 10 TO 20 MPH WITH GUSTS TO 30 MPH.
MONDAY
PATCHY FROST IN THE MORNING. SUNNY. HIGHS 61 TO 66.
WEST WINDS 10 TO 15 MPH.
MONDAY NIGHT
DECREASING CLOUDS. LOWS 35 TO 40. WEST WINDS
10 TO 15 MPH WITH GUSTS TO 25 MPH IN THE EVENING, SHIFTING TO
SOUTH AFTER MIDNIGHT.
TUESDAY
MOSTLY SUNNY. HIGHS 65 TO 70. SOUTH WINDS AROUND
10 MPH IN THE MORNING, SHIFTING TO WEST IN THE AFTERNOON.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 37 TO 42. WEST WINDS 10 TO
15 MPH IN THE EVENING, SHIFTING TO SOUTH AFTER MIDNIGHT.
WEDNESDAY AND WEDNESDAY NIGHT
PARTLY CLOUDY. HIGHS 71 TO 76.
LOWS 40 TO 45.
THURSDAY
SUNNY. HIGHS 74 TO 79.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS 43 TO 48.
FRIDAY THROUGH SUNDAY
MOSTLY CLEAR. HIGHS 77 TO 87. LOWS 43 TO
52. BREEZY.
TEMPERATURE
JEROME 32 62 38 65
TWIN FALLS 33 61 36 66
=
IDZ029-180400-
OWYHEE MOUNTAINS-
230 PM MDT SUN MAY 17 2026
...WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT /11 PM PDT/
TONIGHT...
TONIGHT
PATCHY BLOWING DUST THIS EVENING. MOSTLY CLEAR. LOWS
29 TO 37. WINDY. NORTH WINDS 25 TO 30 MPH. GUSTS TO 45 MPH THIS
EVENING, DECREASING TO 35 MPH AFTER MIDNIGHT.
MONDAY
SUNNY. HIGHS 58 TO 63. BREEZY.
MONDAY NIGHT
MOSTLY CLOUDY. LOWS 33 TO 42.
TUESDAY
SUNNY. HIGHS 63 TO 68.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 38 TO 46.
WEDNESDAY
MOSTLY SUNNY. HIGHS 67 TO 72.
WEDNESDAY NIGHT THROUGH FRIDAY NIGHT
MOSTLY CLEAR. LOWS 42 TO
52. HIGHS 70 TO 77.
SATURDAY
SUNNY. HIGHS 77 TO 82.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS 46 TO 54.
SUNDAY
SUNNY. HIGHS 76 TO 81.
=
IDZ015-180400-
SOUTHWEST HIGHLANDS-
230 PM MDT SUN MAY 17 2026
...WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT /11 PM PDT/
TONIGHT...
TONIGHT
PARTLY CLOUDY THIS EVENING, THEN CLEARING. PATCHY
BLOWING DUST THIS EVENING. LOWS 26 TO 34. VERY WINDY. NORTHWEST
WINDS 25 TO 35 MPH WITH GUSTS TO 50 MPH.
MONDAY
SUNNY. HIGHS 55 TO 63. BREEZY.
MONDAY NIGHT
DECREASING CLOUDS. LOWS 31 TO 38. BREEZY.
TUESDAY
MOSTLY SUNNY. HIGHS 61 TO 68.
TUESDAY NIGHT
DECREASING CLOUDS. LOWS 36 TO 41.
WEDNESDAY AND WEDNESDAY NIGHT
PARTLY CLOUDY. HIGHS 68 TO 75.
LOWS 39 TO 44.
THURSDAY
SUNNY. HIGHS 72 TO 78.
THURSDAY NIGHT
DECREASING CLOUDS. LOWS 42 TO 47.
FRIDAY THROUGH SATURDAY
MOSTLY CLEAR. HIGHS 75 TO 85. LOWS
43 TO 48.
SATURDAY NIGHT
DECREASING CLOUDS. LOWS 44 TO 51. BREEZY.
SUNDAY
SUNNY. HIGHS 79 TO 85.
=
IDZ030-180400-
SOUTHERN TWIN FALLS COUNTY-
230 PM MDT SUN MAY 17 2026
TONIGHT
MOSTLY CLOUDY THIS EVENING, THEN CLEARING. LOWS 27 TO
33. BREEZY.
MONDAY
SUNNY. HIGHS 57 TO 62.
MONDAY NIGHT
PARTLY CLOUDY. LOWS 34 TO 39.
TUESDAY
MOSTLY SUNNY. HIGHS 62 TO 67.
TUESDAY NIGHT
DECREASING CLOUDS. LOWS 37 TO 42.
WEDNESDAY THROUGH THURSDAY NIGHT
PARTLY CLOUDY. HIGHS 69 TO
77. LOWS 40 TO 49.
FRIDAY AND FRIDAY NIGHT
MOSTLY CLEAR. HIGHS 75 TO 80. LOWS
45 TO 50.
SATURDAY THROUGH SUNDAY
MOSTLY CLEAR. HIGHS 80 TO 85. LOWS
48 TO 53. BREEZY.
=
ORZ062-180400-
BAKER COUNTY-
130 PM PDT SUN MAY 17 2026
...WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT /11 PM PDT/
TONIGHT...
TONIGHT
MOSTLY CLEAR. PATCHY BLOWING DUST THIS EVENING. AREAS
OF FOG AFTER MIDNIGHT. LOWS 29 TO 38. WINDY. NORTH WINDS 15 TO
25 MPH WITH GUSTS TO 45 MPH THIS EVENING, BECOMING NORTHWEST
10 TO 15 MPH WITH GUSTS TO 30 MPH AFTER MIDNIGHT.
MONDAY
MOSTLY SUNNY. AREAS OF FOG IN THE MORNING. A SLIGHT
CHANCE OF RAIN SHOWERS IN THE AFTERNOON. CHANCE OF RAIN
20 PERCENT. HIGHS 59 TO 67. BREEZY. NORTHWEST WINDS 10 TO 20 MPH.
GUSTS TO 30 MPH IN THE AFTERNOON.
MONDAY NIGHT
PARTLY CLOUDY. LOWS 30 TO 41. NORTH WINDS 10 TO
15 MPH WITH GUSTS TO 30 MPH IN THE EVENING, BECOMING LIGHT AFTER
MIDNIGHT.
TUESDAY
SUNNY. HIGHS 63 TO 72. LIGHT WINDS.
TUESDAY NIGHT
INCREASING CLOUDS. LOWS 35 TO 46. NORTHWEST
WINDS UP TO 10 MPH.
WEDNESDAY THROUGH THURSDAY
PARTLY CLOUDY. HIGHS 69 TO 79. LOWS
38 TO 48.
THURSDAY NIGHT THROUGH SATURDAY
MOSTLY CLEAR. LOWS 41 TO 51.
HIGHS 73 TO 83.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS 42 TO 52.
SUNDAY
SUNNY. HIGHS 75 TO 83.
TEMPERATURE
BAKER CITY 31 63 30 68
=
ORZ061-180400-
HARNEY COUNTY-
130 PM PDT SUN MAY 17 2026
...WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT /11 PM PDT/
TONIGHT...
TONIGHT
MOSTLY CLEAR. LOWS 28 TO 34. WINDY. NORTH WINDS 15 TO
25 MPH WITH GUSTS TO 40 MPH THIS EVENING, BECOMING NORTHWEST
10 TO 15 MPH WITH GUSTS TO 30 MPH AFTER MIDNIGHT.
MONDAY
PARTLY SUNNY. HIGHS 58 TO 63. NORTHWEST WINDS 10 TO
15 MPH.
MONDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
28 TO 37. NORTH WINDS UP TO 10 MPH.
TUESDAY
SUNNY. HIGHS 63 TO 69. WEST WINDS UP TO 10 MPH.
TUESDAY NIGHT
INCREASING CLOUDS. LOWS 33 TO 42. NORTHWEST
WINDS UP TO 10 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS 68 TO 75.
WEDNESDAY NIGHT THROUGH SUNDAY
MOSTLY CLEAR. LOWS 37 TO 48.
HIGHS 73 TO 83.
TEMPERATURE
BURNS 29 63 28 69
=
ORZ063-180400-
MALHEUR COUNTY-
230 PM MDT SUN MAY 17 2026 /130 PM PDT SUN MAY 17 2026/
...WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT /11 PM PDT/
TONIGHT...
TONIGHT
PATCHY BLOWING DUST THIS EVENING. MOSTLY CLEAR. LOWS
28 TO 38. WINDY. NORTH WINDS 20 TO 30 MPH WITH GUSTS TO 45 MPH
THIS EVENING, BECOMING NORTHWEST 10 TO 20 MPH WITH GUSTS TO
35 MPH AFTER MIDNIGHT.
MONDAY
INCREASING CLOUDS. HIGHS 60 TO 67. NORTH WINDS 10 TO
15 MPH WITH GUSTS TO 25 MPH.
MONDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS 31 TO 41. NORTHWEST WINDS 10 TO 15 MPH. GUSTS
TO 25 MPH IN THE EVENING.
TUESDAY
SUNNY. HIGHS 66 TO 73. WEST WINDS UP TO 10 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 37 TO 47. NORTHWEST WINDS UP
TO 10 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS 71 TO 77.
WEDNESDAY NIGHT THROUGH SATURDAY
MOSTLY CLEAR. LOWS 41 TO 51.
HIGHS 77 TO 87.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS 44 TO 53.
SUNDAY
SUNNY. HIGHS 79 TO 86.
=
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