Zone Forecast Product
Issued by NWS Boise, ID
Issued by NWS Boise, ID
322
FPUS55 KBOI 121345
ZFPBOI
Zone Forecasts for Southwest Idaho/Southeast Oregon
National Weather Service Boise ID
744 AM MDT Sat Sep 12 2026
Forecast Updated.
Spot temperatures are for the rest of today, tonight, and Sunday.
IDZ011-122100-
West Central Mountains-
744 AM MDT Sat Sep 12 2026
.REST OF TODAY...Mostly sunny. Highs 65 to 78.
.TONIGHT...Partly cloudy in the evening, then mostly cloudy with
scattered rain showers after midnight. Chance of rain 30 percent.
Lows 39 to 48. Breezy.
.SUNDAY...Rain showers likely, mainly in the morning. Chance of
rain 60 percent. Much cooler with highs 47 to 60.
.SUNDAY NIGHT...Partly cloudy. Widespread frost with areas of fog
after midnight. Lows 32 to 41.
.MONDAY...Widespread frost with areas of fog in the morning.
Sunny. Highs 54 to 67.
.MONDAY NIGHT AND TUESDAY...Mostly clear. Widespread frost with
areas of fog through the day. Lows 33 to 42. Highs 57 to 70.
.TUESDAY NIGHT...Increasing clouds. Patchy fog after midnight.
Lows 34 to 44.
.WEDNESDAY THROUGH THURSDAY...Areas of fog in the morning. Areas
of fog through the day. Mostly clear. Highs 62 to 77. Lows 36 to
46.
.THURSDAY NIGHT AND FRIDAY...Mostly clear. Lows 40 to 49. Highs
67 to 80.
&&
TEMPERATURE
McCall 72 39 54
$$
=
IDZ013-122100-
Boise Mountains-
744 AM MDT Sat Sep 12 2026
.REST OF TODAY...Mostly sunny. Highs 69 to 84.
.TONIGHT...Mostly cloudy. Patchy smoke. Lows 37 to 51.
.SUNDAY...Patchy fog and smoke in the morning. Sunny. Much cooler
with highs 52 to 67.
.SUNDAY NIGHT...Mostly clear. Widespread frost with areas of fog
after midnight. Colder with lows 28 to 43.
.MONDAY...Widespread frost with areas of fog in the morning.
Sunny. Highs 56 to 71.
.MONDAY NIGHT...Clear. Widespread frost with patchy fog after
midnight. Lows 29 to 44.
.TUESDAY...Patchy fog in the morning. Sunny. Highs 61 to 75.
.TUESDAY NIGHT THROUGH THURSDAY...Mostly clear. Lows 31 to 46.
Highs 66 to 81.
.THURSDAY NIGHT AND FRIDAY...Mostly clear. Lows 36 to 51. Highs
70 to 84.
&&
TEMPERATURE
Idaho City 82 41 64
$$
=
IDZ028-122100-
Camas Prairie-
744 AM MDT Sat Sep 12 2026
.REST OF TODAY...Mostly sunny. Highs 77 to 82. Light winds this
morning, becoming southwest 10 to 15 mph with gusts to 25 mph
this afternoon.
.TONIGHT...Patchy smoke in the evening. Mostly cloudy. Lows 43 to
48. East winds around 10 mph in the evening, shifting to west
after midnight. Gusts to 25 mph.
.SUNDAY...Sunny. Patchy smoke. Much cooler with highs 62 to 67.
Breezy. West winds 10 to 20 mph with gusts to 35 mph.
.SUNDAY NIGHT...Mostly clear. Widespread frost after midnight.
Colder with lows 29 to 34. Breezy. West winds 10 to 20 mph with
gusts to 30 mph.
.MONDAY...Widespread frost in the morning. Sunny. Highs 65 to 70.
West winds 10 to 15 mph.
.MONDAY NIGHT...Clear. Widespread frost with patchy fog after
midnight. Lows 30 to 36.
.TUESDAY...Widespread frost with patchy fog in the morning.
Sunny. Highs 69 to 74.
.TUESDAY NIGHT THROUGH FRIDAY...Mostly clear. Lows 34 to 44.
Highs 71 to 81.
&&
TEMPERATURE
Fairfield 79 44 65
$$
=
IDZ033-122100-
Upper Weiser River-
744 AM MDT Sat Sep 12 2026
.REST OF TODAY...Mostly sunny. Highs 77 to 83. Light winds this
morning, becoming south 10 to 15 mph this afternoon.
.TONIGHT...Patchy smoke in the evening. Partly cloudy in the
evening, then mostly cloudy with scattered showers after
midnight. Chance of rain 30 percent. Lows 47 to 52. Breezy. East
winds 10 to 15 mph in the evening, shifting to southwest 10 to
20 mph after midnight. Gusts to 30 mph.
.SUNDAY...Partly cloudy with a 30 percent chance of showers. Much
cooler with highs 62 to 68. Southwest winds 10 to 15 mph with
gusts to 30 mph.
.SUNDAY NIGHT...Partly cloudy in the evening, then clearing.
Patchy fog after midnight. Lows 40 to 45. Southwest winds up to
10 mph. Gusts to 20 mph in the evening.
.MONDAY...Areas of fog in the morning. Sunny. Highs 64 to 71.
Light winds.
.MONDAY NIGHT THROUGH WEDNESDAY NIGHT...Mostly clear. Lows 41 to
50. Highs 69 to 78.
.THURSDAY THROUGH FRIDAY...Mostly clear. Highs 75 to 83. Lows
49 to 54.
&&
TEMPERATURE
Council 81 49 65
Cambridge 82 47 68
$$
=
ORZ064-122100-
Oregon Lower Treasure Valley-
744 AM MDT Sat Sep 12 2026 /644 AM PDT Sat Sep 12 2026/
.REST OF TODAY...Mostly sunny. Highs 81 to 86. East winds up to
10 mph. Gusts to 20 mph this afternoon.
.TONIGHT...Partly cloudy. Isolated showers after midnight. Chance
of rain 20 percent. Lows 49 to 54. Breezy. Northeast winds 10 to
15 mph with gusts to 25 mph in the evening, shifting to west
10 to 20 mph with gusts to 40 mph after midnight.
.SUNDAY...Sunny, cooler with highs 67 to 72. West winds 10 to
15 mph with gusts to 30 mph.
.SUNDAY NIGHT...Decreasing clouds. Patchy fog after midnight.
Lows 41 to 47. West winds 10 to 15 mph. Gusts to 25 mph in the
evening.
.MONDAY...Patchy fog in the morning. Sunny. Highs 69 to 74. Light
winds.
.MONDAY NIGHT...Clear. Lows 41 to 47.
.TUESDAY THROUGH FRIDAY...Mostly clear. Highs 74 to 84. Lows
44 to 53.
&&
TEMPERATURE
Ontario 84 51 70
$$
=
IDZ012-122100-
Lower Treasure Valley-
744 AM MDT Sat Sep 12 2026
.REST OF TODAY...Mostly sunny. Highs 82 to 87. Southeast winds up
to 10 mph.
.TONIGHT...Patchy smoke in the evening. Partly cloudy. Lows 49 to
54. Breezy. Southeast winds 10 to 15 mph in the evening, shifting
to west 10 to 20 mph after midnight. Gusts to 30 mph.
.SUNDAY...Sunny. Much cooler with highs 67 to 72. West winds
10 to 15 mph with gusts to 25 mph.
.SUNDAY NIGHT...Mostly clear. Areas of fog after midnight. Lows
42 to 47. West winds 10 to 15 mph. Gusts to 25 mph in the
evening.
.MONDAY...Areas of fog in the morning. Sunny. Highs 68 to 73.
Northwest winds up to 10 mph.
.MONDAY NIGHT...Clear. Patchy fog after midnight. Lows 42 to 47.
.TUESDAY...Patchy fog in the morning. Sunny. Highs 72 to 77.
.TUESDAY NIGHT...Mostly clear. Lows 44 to 49.
.WEDNESDAY...Patchy fog in the morning. Sunny. Highs 74 to 79.
.WEDNESDAY NIGHT THROUGH FRIDAY...Mostly clear. Lows 45 to 53.
Highs 77 to 84.
&&
TEMPERATURE
Caldwell 86 52 71
$$
=
IDZ014-122100-
Upper Treasure Valley-
744 AM MDT Sat Sep 12 2026
.REST OF TODAY...Mostly sunny. Patchy smoke this afternoon. Highs
85 to 90. Southeast winds up to 10 mph. Gusts to 25 mph this
afternoon.
.TONIGHT...Patchy smoke in the evening. Partly cloudy. Lows 50 to
55. Breezy. Southeast winds 10 to 15 mph in the evening, shifting
to west 10 to 20 mph after midnight. Gusts to 30 mph.
.SUNDAY...Sunny. Much cooler with highs 68 to 73. Breezy.
Northwest winds 10 to 20 mph with gusts to 30 mph.
.SUNDAY NIGHT...Mostly clear. Areas of fog after midnight. Lows
41 to 47. Breezy. Northwest winds 10 to 20 mph with gusts to
30 mph.
.MONDAY...Areas of fog in the morning. Sunny. Highs 69 to 74.
Northwest winds 10 to 15 mph.
.MONDAY NIGHT...Clear. Patchy fog after midnight. Lows 40 to 47.
.TUESDAY THROUGH THURSDAY NIGHT...Mostly clear. Highs 74 to 84.
Lows 44 to 53.
.FRIDAY...Sunny. Highs 81 to 86.
&&
TEMPERATURE
Boise 86 54 69
Mountain Home 89 52 72
$$
=
IDZ016-122100-
Western Magic Valley-
744 AM MDT Sat Sep 12 2026
.REST OF TODAY...Mostly sunny. Patchy smoke this afternoon. Highs
82 to 87. Southeast winds up to 10 mph this morning, shifting to
west around 10 mph this afternoon. Gusts to 20 mph.
.TONIGHT...Increasing clouds. Patchy smoke in the evening. Lows
51 to 56. Breezy. East winds 10 to 15 mph in the evening,
shifting to southwest 10 to 20 mph with gusts to 35 mph after
midnight.
.SUNDAY...Sunny. Patchy smoke in the afternoon. Much cooler with
highs 66 to 71. West winds 10 to 15 mph with gusts to 30 mph.
.SUNDAY NIGHT...Mostly clear. Colder with lows 39 to 44. West
winds 10 to 15 mph. Gusts to 30 mph in the evening.
.MONDAY...Sunny. Highs 66 to 71. West winds 10 to 15 mph.
.MONDAY NIGHT...Clear. Lows 38 to 43.
.TUESDAY THROUGH WEDNESDAY NIGHT...Mostly clear. Highs 72 to 78.
Lows 41 to 48.
.THURSDAY THROUGH FRIDAY...Mostly clear. Highs 78 to 85. Lows
46 to 51.
&&
TEMPERATURE
Jerome 83 54 68
Twin Falls 84 54 68
$$
=
IDZ029-122100-
Owyhee Mountains-
744 AM MDT Sat Sep 12 2026
.REST OF TODAY...Mostly sunny. Patchy smoke this afternoon. Highs
77 to 83. Breezy. Gusts to 35 mph this afternoon.
.TONIGHT...Partly cloudy in the evening, then clearing. Lows
41 to 49. Windy. Southwest winds around 25 mph after midnight.
Gusts to 40 mph.
.SUNDAY...Sunny. Much cooler with highs 60 to 65.
.SUNDAY NIGHT...Mostly clear. Widespread frost after midnight.
Lows 36 to 43.
.MONDAY...Widespread frost with patchy fog in the morning. Sunny.
Highs 61 to 67.
.MONDAY NIGHT...Clear. Lows 38 to 46.
.TUESDAY THROUGH WEDNESDAY NIGHT...Mostly clear. Highs 65 to 73.
Lows 41 to 49.
.THURSDAY THROUGH FRIDAY...Mostly clear. Highs 71 to 81. Lows
47 to 53.
$$
=
IDZ015-122100-
Southwest Highlands-
744 AM MDT Sat Sep 12 2026
.REST OF TODAY...Mostly sunny. Patchy smoke this afternoon. Highs
81 to 87. Breezy.
.TONIGHT...Partly cloudy. Lows 45 to 51. Windy. Southwest winds
around 25 mph after midnight. Gusts to 40 mph.
.SUNDAY...Sunny. Patchy smoke in the afternoon. Much cooler with
highs 66 to 71.
.SUNDAY NIGHT...Mostly clear. Areas of frost after midnight.
Colder with lows 35 to 41.
.MONDAY...Areas of frost with patchy fog in the morning. Sunny.
Highs 65 to 70.
.MONDAY NIGHT THROUGH WEDNESDAY NIGHT...Mostly clear. Lows 37 to
47. Highs 70 to 75.
.THURSDAY THROUGH FRIDAY...Mostly clear. Highs 76 to 83. Lows
46 to 51.
$$
=
IDZ030-122100-
Southern Twin Falls County-
744 AM MDT Sat Sep 12 2026
.REST OF TODAY...Mostly sunny. Patchy smoke this afternoon. Highs
83 to 88.
.TONIGHT...Patchy smoke in the evening. Partly cloudy. Lows 50 to
55. Breezy.
.SUNDAY...Sunny. Patchy smoke in the afternoon. Much cooler with
highs 67 to 72.
.SUNDAY NIGHT...Mostly clear. Colder with lows 36 to 41.
.MONDAY...Sunny. Highs 65 to 70.
.MONDAY NIGHT THROUGH WEDNESDAY NIGHT...Mostly clear. Lows 37 to
47. Highs 71 to 77.
.THURSDAY THROUGH FRIDAY...Mostly clear. Highs 77 to 84. Lows
46 to 51.
$$
=
ORZ062-122100-
Baker County-
644 AM PDT Sat Sep 12 2026
.REST OF TODAY...Mostly sunny. Highs 75 to 82. Light winds this
morning, becoming south 10 to 15 mph with gusts to 25 mph this
afternoon.
.TONIGHT...Partly cloudy with numerous rain showers, mainly after
midnight. Patchy smoke in the evening, then areas of fog after
midnight. Chance of rain 60 percent. Lows 38 to 49. Breezy.
Southeast winds 10 to 20 mph in the evening, shifting to
northwest after midnight. Gusts to 40 mph.
.SUNDAY...Areas of fog in the morning. Partly cloudy with a
30 percent chance of rain showers. Much cooler with highs 56 to
66. West winds 10 to 15 mph with gusts to 25 mph.
.SUNDAY NIGHT...Mostly cloudy with a chance of rain showers in
the evening, then partly cloudy after midnight. Patchy fog in the
evening. Areas of fog and frost after midnight. Chance of rain
30 percent. Lows 32 to 45. West winds 10 to 15 mph with gusts to
25 mph.
.MONDAY...Areas of fog and frost in the morning. Sunny. Highs
64 to 71. Light winds.
.MONDAY NIGHT AND TUESDAY...Mostly clear. Areas of fog through
the day. Lows 34 to 46. Highs 67 to 75.
.TUESDAY NIGHT...Decreasing clouds. Patchy fog after midnight.
Lows 34 to 47.
.WEDNESDAY...Areas of fog in the morning. Sunny. Highs 69 to 77.
.WEDNESDAY NIGHT THROUGH FRIDAY...Mostly clear. Lows 36 to 51.
Highs 74 to 83.
&&
TEMPERATURE
Baker City 80 38 60
$$
=
ORZ061-122100-
Harney County-
644 AM PDT Sat Sep 12 2026
.REST OF TODAY...Mostly sunny. Patchy smoke this morning. Areas
of smoke with patchy blowing dust this afternoon. Highs 74 to 82.
Breezy. South winds 10 to 20 mph. Gusts to 35 mph this afternoon.
.TONIGHT...Patchy smoke and blowing dust in the evening. Rain
showers, mainly after midnight. Chance of rain 80 percent. Lows
36 to 43. Windy. West winds 15 to 25 mph with gusts to 40 mph.
.SUNDAY...Mostly sunny. Much cooler with highs 56 to 62. West
winds 10 to 15 mph with gusts to 25 mph.
.SUNDAY NIGHT...Mostly clear. Widespread frost with areas of fog
after midnight. Lows 30 to 40. Northwest winds 10 to 15 mph.
Gusts to 25 mph in the evening.
.MONDAY...Widespread frost with areas of fog in the morning.
Sunny. Highs 61 to 68. Light winds.
.MONDAY NIGHT THROUGH WEDNESDAY NIGHT...Mostly clear. Lows 34 to
47. Highs 65 to 74.
.THURSDAY THROUGH FRIDAY...Mostly clear. Highs 71 to 81. Lows
40 to 50.
&&
TEMPERATURE
Burns 79 36 58
$$
=
ORZ063-122100-
Malheur County-
744 AM MDT Sat Sep 12 2026 /644 AM PDT Sat Sep 12 2026/
.REST OF TODAY...Mostly sunny. Patchy smoke this afternoon. Highs
79 to 86. Breezy. Southwest winds up to 10 mph this morning,
increasing to south 10 to 20 mph with gusts to 35 mph this
afternoon.
.TONIGHT...Partly cloudy in the evening, then clearing. Patchy
smoke in the evening. Lows 41 to 51. Windy. Southwest winds 15 to
25 mph with gusts to 40 mph.
.SUNDAY...Sunny. Much cooler with highs 61 to 68. Breezy. West
winds 10 to 20 mph with gusts to 30 mph.
.SUNDAY NIGHT...Mostly clear. Areas of fog after midnight. Lows
35 to 45. West winds 10 to 15 mph with gusts to 25 mph.
.MONDAY...Areas of fog and frost in the morning. Sunny. Highs
65 to 71. West winds up to 10 mph.
.MONDAY NIGHT AND TUESDAY...Mostly clear. Lows 37 to 47. Highs
70 to 75.
.TUESDAY NIGHT AND WEDNESDAY...Mostly clear. Patchy fog through
the day. Lows 40 to 49. Highs 71 to 76.
.WEDNESDAY NIGHT THROUGH FRIDAY...Mostly clear. Lows 41 to 51.
Highs 75 to 83.
$$
=