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FPUS55 KBOI 300831
ZFPBOI

Zone Forecasts for Southwest Idaho/Southeast Oregon
National Weather Service Boise ID
230 AM MDT Wed Sep 30 2026

Spot temperatures are for today, tonight, and Thursday.


IDZ011-301600-
West Central Mountains-
230 AM MDT Wed Sep 30 2026

.TODAY...Areas of fog this morning. Sunny. Highs 60 to 75.
.TONIGHT...Mostly clear. Patchy smoke in the evening. Areas of
fog after midnight. Lows 36 to 47.
.THURSDAY...Areas of fog in the morning. Mostly sunny. Highs
62 to 76.
.THURSDAY NIGHT...Decreasing clouds. Areas of fog after midnight.
Lows 37 to 48.
.FRIDAY...Areas of fog in the morning. Sunny. Highs 65 to 79.
.FRIDAY NIGHT THROUGH SUNDAY...Mostly clear. Lows 39 to 51. Highs
68 to 81.
.SUNDAY NIGHT AND MONDAY...Partly cloudy. Lows 45 to 55. Highs
67 to 80.
.MONDAY NIGHT AND TUESDAY...Mostly clear. Lows 43 to 53. Highs
66 to 77.

&&
               TEMPERATURE
McCall          68  36  70

$$
=

IDZ013-301600-
Boise Mountains-
230 AM MDT Wed Sep 30 2026

.TODAY...Sunny. Highs 65 to 79.
.TONIGHT...Mostly clear. Lows 35 to 50.
.THURSDAY...Patchy fog in the morning. Sunny. Highs 65 to 79.
.THURSDAY NIGHT...Decreasing clouds. Lows 36 to 51.
.FRIDAY...Sunny. Highs 69 to 83.
.FRIDAY NIGHT THROUGH MONDAY NIGHT...Partly cloudy. Lows 39 to
54. Highs 72 to 86.
.TUESDAY...Sunny. Highs 68 to 83.

&&
               TEMPERATURE
Idaho City      78  38  79

$$
=

IDZ028-301600-
Camas Prairie-
230 AM MDT Wed Sep 30 2026

.TODAY...Sunny. Highs 72 to 77. Breezy. West winds up to 10 mph
this morning, increasing to southwest 10 to 20 mph this
afternoon.
.TONIGHT...Mostly clear. Lows 36 to 41. Breezy. West winds 10 to
20 mph with gusts to 30 mph in the evening, decreasing to around
10 mph after midnight.
.THURSDAY...Sunny. Highs 72 to 77. West winds 10 to 15 mph. Gusts
to 25 mph in the afternoon.
.THURSDAY NIGHT...Partly cloudy in the evening, then clearing.
Lows 36 to 42. West winds 10 to 15 mph in the evening, becoming
light after midnight.
.FRIDAY...Sunny. Highs 75 to 80. Light winds in the morning,
becoming south around 10 mph in the afternoon.
.FRIDAY NIGHT THROUGH MONDAY NIGHT...Partly cloudy. Lows 38 to
47. Highs 75 to 83.
.TUESDAY...Sunny. Highs 75 to 80.

&&
               TEMPERATURE
Fairfield       76  36  75

$$
=

IDZ033-301600-
Upper Weiser River-
230 AM MDT Wed Sep 30 2026

.TODAY...Sunny. Highs 72 to 79. North winds 10 to 15 mph this
morning, shifting to west this afternoon.
.TONIGHT...Mostly clear. Lows 45 to 51. North winds 10 to 15 mph.
.THURSDAY...Areas of fog in the morning. Sunny. Highs 73 to 80.
Northeast winds up to 10 mph in the morning, becoming light in
the afternoon.
.THURSDAY NIGHT...Decreasing clouds. Lows 46 to 52. Light winds.
.FRIDAY...Sunny. Highs 76 to 83. Northeast winds up to 10 mph in
the morning, shifting to southwest in the afternoon.
.FRIDAY NIGHT...Partly cloudy in the evening, then clearing. Lows
47 to 53.
.SATURDAY AND SATURDAY NIGHT...Mostly clear. Highs 77 to 83. Lows
52 to 57.
.SUNDAY THROUGH MONDAY...Partly cloudy. Highs 78 to 86. Lows
54 to 59.
.MONDAY NIGHT AND TUESDAY...Mostly clear. Lows 51 to 56. Highs
76 to 83.

&&
               TEMPERATURE
Council         78  47  79
Cambridge       79  46  80

$$
=

ORZ064-301600-
Oregon Lower Treasure Valley-
230 AM MDT Wed Sep 30 2026 /130 AM PDT Wed Sep 30 2026/

.TODAY...Sunny. Highs 77 to 82. Northwest winds 10 to 15 mph.
.TONIGHT...Mostly clear. Lows 46 to 51. Northwest winds 10 to
15 mph.
.THURSDAY...Areas of fog in the morning. Sunny. Highs 78 to 83.
North winds up to 10 mph.
.THURSDAY NIGHT...Mostly clear. Lows 45 to 50. Light winds.
.FRIDAY...Sunny. Highs 80 to 85. Light winds.
.FRIDAY NIGHT THROUGH MONDAY...Partly cloudy. Lows 46 to 56.
Highs 80 to 87.
.MONDAY NIGHT AND TUESDAY...Mostly clear. Lows 49 to 56. Highs
80 to 85.

&&
               TEMPERATURE
Ontario         80  46  81

$$
=

IDZ012-301600-
Lower Treasure Valley-
230 AM MDT Wed Sep 30 2026

.TODAY...Sunny. Highs 76 to 81. Northwest winds 10 to 15 mph.
.TONIGHT...Mostly clear. Areas of fog after midnight. Lows 46 to
51. Northwest winds up to 10 mph.
.THURSDAY...Areas of fog in the morning. Mostly sunny. Highs
77 to 82. Light winds.
.THURSDAY NIGHT...Mostly clear. Lows 46 to 51. Light winds.
.FRIDAY...Sunny. Highs 80 to 85. Light winds.
.FRIDAY NIGHT THROUGH MONDAY...Partly cloudy. Lows 48 to 58.
Highs 80 to 87.
.MONDAY NIGHT AND TUESDAY...Mostly clear. Lows 51 to 56. Highs
80 to 85.

&&
               TEMPERATURE
Caldwell        79  46  80

$$
=

IDZ014-301600-
Upper Treasure Valley-
230 AM MDT Wed Sep 30 2026

.TODAY...Sunny. Highs 77 to 82. Breezy. Northwest winds 10 to
20 mph with gusts to 30 mph.
.TONIGHT...Mostly clear. Patchy fog after midnight. Lows 44 to
50. Breezy. Northwest winds 10 to 20 mph with gusts to 30 mph in
the evening, becoming west up to 10 mph after midnight.
.THURSDAY...Areas of fog in the morning. Mostly sunny. Highs
78 to 83. Northwest winds up to 10 mph with gusts to 20 mph.
.THURSDAY NIGHT...Mostly clear. Lows 43 to 51. Northwest winds up
to 10 mph in the evening, shifting to east after midnight.
.FRIDAY...Sunny. Highs 82 to 87. East winds up to 10 mph.
.FRIDAY NIGHT THROUGH MONDAY...Partly cloudy. Lows 48 to 58.
Highs 81 to 89.
.MONDAY NIGHT AND TUESDAY...Mostly clear. Lows 49 to 56. Highs
81 to 86.

&&
               TEMPERATURE
Boise           79  50  80
Mountain Home   79  45  81

$$
=

IDZ016-301600-
Western Magic Valley-
230 AM MDT Wed Sep 30 2026

.TODAY...Sunny. Highs 73 to 78. Breezy. West winds 10 to 20 mph
with gusts to 30 mph.
.TONIGHT...Mostly clear. Lows 44 to 50. Breezy. Southwest winds
10 to 20 mph. Gusts to 30 mph in the evening.
.THURSDAY...Sunny. Highs 74 to 79. Southwest winds 10 to 15 mph.
.THURSDAY NIGHT...Partly cloudy in the evening, then clearing.
Lows 44 to 49. Southwest winds around 10 mph in the evening,
shifting to southeast after midnight.
.FRIDAY...Sunny. Highs 79 to 84. East winds up to 10 mph in the
morning, shifting to north around 10 mph in the afternoon.
.FRIDAY NIGHT THROUGH MONDAY...Partly cloudy. Lows 47 to 57.
Highs 78 to 87.
.MONDAY NIGHT AND TUESDAY...Mostly clear. Lows 49 to 54. Highs
77 to 82.

&&
               TEMPERATURE
Jerome          73  47  74
Twin Falls      73  50  75

$$
=

IDZ029-301600-
Owyhee Mountains-
230 AM MDT Wed Sep 30 2026

.TODAY...Sunny. Highs 69 to 76.
.TONIGHT...Mostly clear. Lows 42 to 52.
.THURSDAY...Mostly sunny. Highs 71 to 79.
.THURSDAY NIGHT...Mostly clear. Lows 44 to 54.
.FRIDAY...Mostly sunny. Highs 74 to 83.
.FRIDAY NIGHT THROUGH MONDAY...Partly cloudy. Lows 47 to 57.
Highs 75 to 85.
.MONDAY NIGHT AND TUESDAY...Mostly clear. Lows 48 to 57. Highs
74 to 81.

$$
=

IDZ015-301600-
Southwest Highlands-
230 AM MDT Wed Sep 30 2026

.TODAY...Sunny. Highs 72 to 77.
.TONIGHT...Mostly clear. Lows 41 to 47.
.THURSDAY...Sunny. Highs 75 to 80.
.THURSDAY NIGHT...Mostly clear. Lows 42 to 49.
.FRIDAY...Mostly sunny. Highs 80 to 85.
.FRIDAY NIGHT THROUGH MONDAY...Partly cloudy. Lows 46 to 56.
Highs 78 to 86.
.MONDAY NIGHT AND TUESDAY...Mostly clear. Lows 46 to 53. Highs
77 to 82.

$$
=

IDZ030-301600-
Southern Twin  Falls County-
230 AM MDT Wed Sep 30 2026

.TODAY...Sunny. Highs 71 to 76.
.TONIGHT...Mostly clear. Lows 43 to 49.
.THURSDAY...Sunny. Highs 74 to 79.
.THURSDAY NIGHT...Mostly clear. Lows 45 to 51.
.FRIDAY...Sunny. Highs 79 to 84.
.FRIDAY NIGHT THROUGH MONDAY NIGHT...Partly cloudy. Lows 50 to
58. Highs 78 to 86.
.TUESDAY...Sunny. Highs 76 to 81.

$$
=

ORZ062-301600-
Baker County-
130 AM PDT Wed Sep 30 2026

.TODAY...Areas of fog this morning. Sunny. Highs 69 to 76.
Northwest winds 10 to 15 mph.
.TONIGHT...Mostly clear. Patchy smoke in the evening. Areas of
fog. Lows 37 to 48. Northwest winds 10 to 15 mph.
.THURSDAY...Areas of fog in the morning. Sunny. Highs 72 to 78.
Northwest winds up to 10 mph.
.THURSDAY NIGHT...Partly cloudy in the evening, then clearing.
Lows 39 to 50. Light winds.
.FRIDAY...Patchy fog in the morning. Sunny. Highs 75 to 81. Light
winds.
.FRIDAY NIGHT THROUGH SATURDAY NIGHT...Mostly clear. Lows 39 to
53. Highs 75 to 81.
.SUNDAY AND SUNDAY NIGHT...Partly cloudy. Highs 78 to 84. Lows
44 to 57.
.MONDAY THROUGH TUESDAY...Mostly clear. Highs 76 to 84. Lows
41 to 54.

&&
               TEMPERATURE
Baker City      72  37  75

$$
=

ORZ061-301600-
Harney County-
130 AM PDT Wed Sep 30 2026

.TODAY...Patchy fog this morning. Sunny. Highs 71 to 77.
Northwest winds up to 10 mph.
.TONIGHT...Mostly clear. Lows 37 to 46. Northwest winds up to
10 mph.
.THURSDAY...Partly sunny in the morning, then clearing. Patchy
fog and smoke in the morning. Highs 73 to 80. Light winds.
.THURSDAY NIGHT...Mostly clear. Lows 38 to 47. Northeast winds up
to 10 mph.
.FRIDAY...Mostly sunny. Highs 77 to 84. Light winds in the
morning, becoming southwest up to 10 mph in the afternoon.
.FRIDAY NIGHT THROUGH MONDAY...Partly cloudy. Lows 39 to 51.
Highs 76 to 85.
.MONDAY NIGHT AND TUESDAY...Mostly clear. Lows 39 to 50. Highs
75 to 82.

&&
               TEMPERATURE
Burns           77  37  79

$$
=

ORZ063-301600-
Malheur County-
230 AM MDT Wed Sep 30 2026 /130 AM PDT Wed Sep 30 2026/

.TODAY...Areas of fog this morning. Sunny. Highs 73 to 80.
Northwest winds up to 10 mph.
.TONIGHT...Mostly clear. Areas of fog after midnight. Lows 40 to
50. North winds up to 10 mph.
.THURSDAY...Areas of fog in the morning. Mostly sunny. Highs
75 to 82. West winds up to 10 mph in the morning, shifting to
northeast in the afternoon.
.THURSDAY NIGHT...Mostly clear. Lows 41 to 51. Northeast winds up
to 10 mph in the evening, shifting to west after midnight.
.FRIDAY...Mostly sunny. Highs 77 to 86. Light winds in the
morning, becoming northeast up to 10 mph in the afternoon.
.FRIDAY NIGHT THROUGH MONDAY...Partly cloudy. Lows 44 to 54.
Highs 78 to 86.
.MONDAY NIGHT AND TUESDAY...Mostly clear. Lows 46 to 55. Highs
79 to 84.

$$
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