172
FPUS55 KBOI 292031
ZFPBOI

Zone Forecasts for Southwest Idaho/Southeast Oregon
National Weather Service Boise ID
230 PM MDT Tue Sep 29 2026

Spot temperatures are for tonight, Wednesday, Wednesday night,
and Thursday.


IDZ011-300400-
West Central Mountains-
230 PM MDT Tue Sep 29 2026

.TONIGHT...Mostly clear. Areas of fog after midnight. Lows 37 to
47.
.WEDNESDAY...Areas of fog in the morning. Sunny. Highs 61 to 74.
.WEDNESDAY NIGHT...Mostly clear. Patchy fog in the evening. Areas
of fog after midnight. Lows 36 to 47.
.THURSDAY...Areas of fog in the morning. Sunny. Highs 62 to 75.
.THURSDAY NIGHT...Partly cloudy. Areas of fog after midnight.
Lows 40 to 50.
.FRIDAY THROUGH SATURDAY...Areas of fog in the morning. Areas of
fog through the day. Mostly clear. Highs 64 to 79. Lows 40 to 50.
.SATURDAY NIGHT...Decreasing clouds. Lows 42 to 52.
.SUNDAY...Sunny. Highs 69 to 82.
.SUNDAY NIGHT AND MONDAY...Partly cloudy. Lows 45 to 55. Highs
68 to 81.
.MONDAY NIGHT AND TUESDAY...Mostly clear. Lows 43 to 53. Highs
64 to 77.

&&
                  TEMPERATURE
McCall          37  68  36  70

$$
=

IDZ013-300400-
Boise Mountains-
230 PM MDT Tue Sep 29 2026

.TONIGHT...Mostly clear. Lows 37 to 50.
.WEDNESDAY...Sunny. Highs 63 to 78.
.WEDNESDAY NIGHT...Mostly clear. Patchy fog after midnight. Lows
36 to 50.
.THURSDAY...Areas of fog in the morning. Sunny. Highs 65 to 80.
.THURSDAY NIGHT...Mostly clear. Lows 36 to 51.
.FRIDAY THROUGH SATURDAY...Mostly clear. Highs 69 to 84. Lows
38 to 53.
.SATURDAY NIGHT THROUGH MONDAY...Partly cloudy. Lows 40 to 55.
Highs 71 to 86.
.MONDAY NIGHT AND TUESDAY...Mostly clear. Lows 39 to 54. Highs
66 to 81.

&&
                  TEMPERATURE
Idaho City      37  76  37  78

$$
=

IDZ028-300400-
Camas Prairie-
230 PM MDT Tue Sep 29 2026

.TONIGHT...Mostly clear. Lows 36 to 42. West winds 10 to 15 mph.
Gusts to 30 mph this evening.
.WEDNESDAY...Sunny. Highs 73 to 78. Breezy. West winds up to
10 mph in the morning, increasing to 10 to 20 mph with gusts to
30 mph in the afternoon.
.WEDNESDAY NIGHT...Mostly clear. Lows 35 to 41. Breezy. Northwest
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. Light winds in the morning,
becoming southwest 10 to 15 mph with gusts to 25 mph in the
afternoon.
.THURSDAY NIGHT...Mostly clear. Lows 39 to 44. West winds 10 to
15 mph with gusts to 25 mph in the evening, becoming light after
midnight.
.FRIDAY THROUGH SATURDAY...Mostly clear. Highs 75 to 80. Lows
42 to 47.
.SATURDAY NIGHT...Partly cloudy. Lows 43 to 48.
.SUNDAY...Sunny. Highs 77 to 82.
.SUNDAY NIGHT AND MONDAY...Partly cloudy. Lows 45 to 50. Highs
76 to 81.
.MONDAY NIGHT AND TUESDAY...Mostly clear. Lows 42 to 48. Highs
73 to 78.

&&
                  TEMPERATURE
Fairfield       37  76  36  76

$$
=

IDZ033-300400-
Upper Weiser River-
230 PM MDT Tue Sep 29 2026

.TONIGHT...Mostly clear. Lows 45 to 50. Light winds.
.WEDNESDAY...Areas of fog in the morning. Sunny. Highs 72 to 79.
North winds up to 10 mph.
.WEDNESDAY NIGHT...Mostly clear. Patchy fog after midnight. Lows
44 to 50. North winds up to 10 mph with gusts to 20 mph.
.THURSDAY...Areas of fog in the morning. Sunny. Highs 73 to 80.
North winds up to 10 mph in the morning, becoming light in the
afternoon.
.THURSDAY NIGHT...Decreasing clouds. Lows 49 to 54. Light winds.
.FRIDAY THROUGH SATURDAY...Mostly clear. Highs 75 to 83. Lows
50 to 55.
.SATURDAY NIGHT THROUGH MONDAY...Partly cloudy. Lows 52 to 59.
Highs 77 to 84.
.MONDAY NIGHT AND TUESDAY...Mostly clear. Lows 52 to 57. Highs
74 to 81.

&&
                  TEMPERATURE
Council         46  77  46  79
Cambridge       45  78  44  80

$$
=

ORZ064-300400-
Oregon Lower Treasure Valley-
230 PM MDT Tue Sep 29 2026 /130 PM PDT Tue Sep 29 2026/

.TONIGHT...Patchy smoke this evening. Mostly clear. Lows 47 to
52. North winds up to 10 mph.
.WEDNESDAY...Sunny. Highs 77 to 82. Northwest winds up to 10 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows 46 to 51. Northwest winds
up to 10 mph with gusts to 20 mph.
.THURSDAY...Areas of fog in the morning. Sunny. Highs 77 to 82.
Light winds.
.THURSDAY NIGHT...Mostly clear. Lows 47 to 54. Light winds.
.FRIDAY THROUGH SATURDAY...Mostly clear. Highs 79 to 84. Lows
50 to 56.
.SATURDAY NIGHT THROUGH MONDAY...Partly cloudy. Lows 48 to 57.
Highs 80 to 86.
.MONDAY NIGHT AND TUESDAY...Mostly clear. Lows 49 to 56. Highs
79 to 84.

&&
                  TEMPERATURE
Ontario         47  79  46  80

$$
=

IDZ012-300400-
Lower Treasure Valley-
230 PM MDT Tue Sep 29 2026

.TONIGHT...Mostly clear. Lows 46 to 51. North winds up to 10 mph.
.WEDNESDAY...Patchy fog in the morning. Sunny. Highs 75 to 80.
Northwest winds 10 to 15 mph.
.WEDNESDAY NIGHT...Mostly clear. Areas of fog after midnight.
Lows 45 to 50. Northwest winds up to 10 mph.
.THURSDAY...Areas of fog in the morning. Sunny. Highs 77 to 82.
Northwest winds up to 10 mph.
.THURSDAY NIGHT...Mostly clear. Lows 49 to 54. Northwest winds up
to 10 mph.
.FRIDAY THROUGH SATURDAY...Mostly clear. Highs 79 to 84. Lows
51 to 56.
.SATURDAY NIGHT THROUGH MONDAY...Partly cloudy. Lows 50 to 57.
Highs 80 to 86.
.MONDAY NIGHT AND TUESDAY...Mostly clear. Lows 51 to 56. Highs
78 to 83.

&&
                  TEMPERATURE
Caldwell        46  79  45  80

$$
=

IDZ014-300400-
Upper Treasure Valley-
230 PM MDT Tue Sep 29 2026

.TONIGHT...Mostly clear. Lows 45 to 50. Northwest winds 10 to
15 mph. Gusts to 30 mph this evening, decreasing to 20 mph after
midnight.
.WEDNESDAY...Sunny. Highs 75 to 80. Windy. Northwest winds 10 to
15 mph with gusts to 25 mph in the morning, increasing to 15 to
25 mph with gusts to 35 mph in the afternoon.
.WEDNESDAY NIGHT...Mostly clear. Areas of fog after midnight.
Lows 43 to 49. 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.
.THURSDAY...Areas of fog in the morning. Sunny. Highs 77 to 82.
Northwest winds up to 10 mph with gusts to 20 mph.
.THURSDAY NIGHT...Mostly clear. Lows 47 to 52. Northwest winds
10 to 15 mph in the evening, becoming light after midnight.
.FRIDAY THROUGH SATURDAY...Mostly clear. Highs 79 to 85. Lows
50 to 55.
.SATURDAY NIGHT THROUGH MONDAY...Partly cloudy. Lows 49 to 58.
Highs 82 to 88.
.MONDAY NIGHT AND TUESDAY...Mostly clear. Lows 50 to 56. Highs
79 to 84.

&&
                  TEMPERATURE
Boise           48  78  49  79
Mountain Home   46  78  45  80

$$
=

IDZ016-300400-
Western Magic Valley-
230 PM MDT Tue Sep 29 2026

.TONIGHT...Mostly clear. Lows 44 to 49. Breezy. Southwest winds
10 to 20 mph with gusts to 30 mph.
.WEDNESDAY...Sunny. Highs 72 to 77. Breezy. West winds 10 to
20 mph with gusts to 35 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows 45 to 50. Breezy. Southwest
winds 10 to 20 mph with gusts to 30 mph.
.THURSDAY...Sunny. Highs 74 to 79. West winds around 10 mph with
gusts to 20 mph.
.THURSDAY NIGHT...Mostly clear. Lows 46 to 51. Southwest winds
10 to 15 mph.
.FRIDAY THROUGH SATURDAY...Mostly clear. Highs 77 to 83. Lows
49 to 54.
.SATURDAY NIGHT...Partly cloudy. Lows 49 to 54.
.SUNDAY...Sunny. Highs 81 to 86.
.SUNDAY NIGHT AND MONDAY...Partly cloudy. Lows 51 to 56. Highs
80 to 85.
.MONDAY NIGHT AND TUESDAY...Mostly clear. Lows 50 to 55. Highs
76 to 81.

&&
                  TEMPERATURE
Jerome          46  73  46  74
Twin Falls      48  73  49  75

$$
=

IDZ029-300400-
Owyhee Mountains-
230 PM MDT Tue Sep 29 2026

.TONIGHT...Mostly clear. Lows 41 to 51.
.WEDNESDAY...Sunny. Highs 69 to 75.
.WEDNESDAY NIGHT...Mostly clear. Lows 41 to 51.
.THURSDAY...Sunny. Highs 69 to 78.
.THURSDAY NIGHT...Mostly clear. Lows 46 to 55.
.FRIDAY THROUGH SATURDAY...Mostly clear. Highs 72 to 82. Lows
49 to 56.
.SATURDAY NIGHT THROUGH MONDAY...Partly cloudy. Lows 49 to 58.
Highs 75 to 84.
.MONDAY NIGHT AND TUESDAY...Mostly clear. Lows 49 to 58. Highs
73 to 79.

$$
=

IDZ015-300400-
Southwest Highlands-
230 PM MDT Tue Sep 29 2026

.TONIGHT...Mostly clear. Lows 41 to 47.
.WEDNESDAY...Sunny. Highs 71 to 76. Breezy.
.WEDNESDAY NIGHT...Mostly clear. Lows 41 to 46.
.THURSDAY...Sunny. Highs 74 to 79.
.THURSDAY NIGHT...Mostly clear. Lows 45 to 51.
.FRIDAY AND FRIDAY NIGHT...Mostly clear. Highs 79 to 84. Lows
48 to 54.
.SATURDAY THROUGH MONDAY...Partly cloudy. Highs 76 to 84. Lows
49 to 56.
.MONDAY NIGHT AND TUESDAY...Mostly clear. Lows 47 to 54. Highs
76 to 81.

$$
=

IDZ030-300400-
Southern Twin  Falls County-
230 PM MDT Tue Sep 29 2026

.TONIGHT...Mostly clear. Lows 43 to 48.
.WEDNESDAY...Sunny. Highs 70 to 75. Breezy.
.WEDNESDAY NIGHT...Mostly clear. Lows 42 to 48.
.THURSDAY...Sunny. Highs 73 to 78.
.THURSDAY NIGHT...Mostly clear. Lows 47 to 52.
.FRIDAY THROUGH SATURDAY...Mostly clear. Highs 77 to 83. Lows
50 to 55.
.SATURDAY NIGHT THROUGH MONDAY NIGHT...Partly cloudy. Lows 50 to
58. Highs 79 to 85.
.TUESDAY...Sunny. Highs 76 to 81.

$$
=

ORZ062-300400-
Baker County-
130 PM PDT Tue Sep 29 2026

.TONIGHT...Mostly clear. Areas of smoke this evening. Areas of
fog after midnight. Lows 36 to 47. Northwest winds up to 10 mph.
.WEDNESDAY...Areas of fog in the morning. Sunny. Highs 68 to 75.
Northwest winds 10 to 15 mph. Gusts to 25 mph in the afternoon.
.WEDNESDAY NIGHT...Mostly clear. Areas of fog. Lows 37 to 47.
Northwest winds 10 to 15 mph in the evening, becoming light after
midnight.
.THURSDAY...Areas of fog in the morning. Sunny. Highs 71 to 78.
Light winds.
.THURSDAY NIGHT...Partly cloudy in the evening, then clearing.
Patchy fog after midnight. Lows 39 to 52. Light winds.
.FRIDAY...Areas of fog in the morning. Sunny. Highs 74 to 81.
.FRIDAY NIGHT...Mostly clear. Patchy fog after midnight. Lows
40 to 53.
.SATURDAY...Areas of fog in the morning. Sunny. Highs 74 to 81.
.SATURDAY NIGHT...Partly cloudy. Lows 41 to 55.
.SUNDAY...Sunny. Highs 77 to 83.
.SUNDAY NIGHT AND MONDAY...Partly cloudy. Lows 44 to 57. Highs
77 to 84.
.MONDAY NIGHT AND TUESDAY...Mostly clear. Lows 41 to 54. Highs
74 to 80.

&&
                  TEMPERATURE
Baker City      36  70  37  74

$$
=

ORZ061-300400-
Harney County-
130 PM PDT Tue Sep 29 2026

.TONIGHT...Mostly clear. Lows 33 to 44. Northwest winds up to
10 mph.
.WEDNESDAY...Areas of fog in the morning. Sunny. Highs 70 to 77.
Northwest winds up to 10 mph.
.WEDNESDAY NIGHT...Mostly clear. Patchy fog after midnight. Lows
36 to 45. Northwest winds up to 10 mph.
.THURSDAY...Areas of fog in the morning. Sunny. Highs 72 to 80.
Light winds.
.THURSDAY NIGHT...Mostly clear. Lows 39 to 50. Light winds.
.FRIDAY THROUGH MONDAY...Partly cloudy. Highs 75 to 85. Lows
40 to 53.
.MONDAY NIGHT AND TUESDAY...Mostly clear. Lows 39 to 50. Highs
73 to 80.

&&
                  TEMPERATURE
Burns           33  76  36  78

$$
=

ORZ063-300400-
Malheur County-
230 PM MDT Tue Sep 29 2026 /130 PM PDT Tue Sep 29 2026/

.TONIGHT...Mostly clear. Patchy smoke. Lows 40 to 50. Northwest
winds up to 10 mph.
.WEDNESDAY...Areas of fog in the morning. Sunny. Highs 73 to 79.
Northwest winds up to 10 mph.
.WEDNESDAY NIGHT...Mostly clear. Areas of fog after midnight.
Lows 40 to 50. Northwest winds up to 10 mph.
.THURSDAY...Areas of fog in the morning. Sunny. Highs 75 to 81.
Light winds.
.THURSDAY NIGHT...Mostly clear. Lows 44 to 54. Light winds.
.FRIDAY...Sunny. Highs 77 to 84.
.FRIDAY NIGHT THROUGH MONDAY...Partly cloudy. Lows 45 to 55.
Highs 76 to 85.
.MONDAY NIGHT AND TUESDAY...Mostly clear. Lows 46 to 56. Highs
77 to 82.

$$
=