395
FPUS55 KBOI 270831
ZFPBOI

Zone Forecasts for Southwest Idaho/Southeast Oregon
National Weather Service Boise ID
230 AM MDT Sun Sep 27 2026

Spot temperatures are for today, tonight, and Monday.


IDZ011-271600-
West Central Mountains-
230 AM MDT Sun Sep 27 2026

.TODAY...Mostly cloudy. A chance of rain showers this afternoon.
Chance of rain 30 percent. Highs 55 to 68.
.TONIGHT...Mostly cloudy. A chance of rain showers in the
evening. Areas of fog after midnight. Chance of rain 30 percent.
Lows 36 to 46.
.MONDAY...Areas of fog in the morning. Sunny. Highs 59 to 71.
.MONDAY NIGHT...Mostly clear. Areas of fog after midnight. Lows
35 to 45.
.TUESDAY...Areas of fog in the morning. Sunny. Highs 60 to 73.
.TUESDAY NIGHT AND WEDNESDAY...Mostly clear. Lows 38 to 48. Highs
62 to 75.
.WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Patchy fog through
the day. Lows 38 to 48. Highs 63 to 75.
.THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows 40 to 50. Highs
61 to 73.
.FRIDAY NIGHT...Partly cloudy. Areas of fog after midnight. Lows
37 to 47.
.SATURDAY...Areas of fog in the morning. Sunny. Highs 60 to 72.

&&
               TEMPERATURE
McCall          62  37  66

$$
=

IDZ013-271600-
Boise Mountains-
230 AM MDT Sun Sep 27 2026

.TODAY...Cloudy. Highs 58 to 73.
.TONIGHT...Mostly cloudy. Lows 35 to 50.
.MONDAY...Patchy fog in the morning. Mostly sunny. Highs 61 to
75.
.MONDAY NIGHT...Mostly clear. Lows 32 to 47.
.TUESDAY...Sunny. Highs 63 to 76.
.TUESDAY NIGHT...Mostly clear. Lows 35 to 50.
.WEDNESDAY...Sunny. Highs 66 to 80.
.WEDNESDAY NIGHT THROUGH THURSDAY NIGHT...Mostly clear. Lows
34 to 49. Highs 67 to 81.
.FRIDAY AND FRIDAY NIGHT...Partly cloudy. Highs 64 to 78. Lows
33 to 48.
.SATURDAY...Sunny. Highs 62 to 77.

&&
               TEMPERATURE
Idaho City      71  41  74

$$
=

IDZ028-271600-
Camas Prairie-
230 AM MDT Sun Sep 27 2026

.TODAY...Mostly cloudy. Highs 69 to 74. East winds 10 to 15 mph.
.TONIGHT...Mostly cloudy. Lows 41 to 46. Northwest winds around
10 mph.
.MONDAY...Mostly sunny. Highs 68 to 73. West winds 10 to 15 mph
with gusts to 25 mph.
.MONDAY NIGHT...Mostly clear. Lows 35 to 40. Northwest winds
10 to 15 mph. Gusts to 25 mph in the evening.
.TUESDAY...Sunny. Highs 70 to 75. Light winds in the morning,
becoming southwest 10 to 15 mph in the afternoon.
.TUESDAY NIGHT...Mostly clear. Lows 37 to 42.
.WEDNESDAY THROUGH THURSDAY...Clear. Highs 72 to 77. Lows 36 to
41.
.THURSDAY NIGHT...Increasing clouds. Lows 40 to 45.
.FRIDAY AND FRIDAY NIGHT...Partly cloudy. Highs 71 to 76. Lows
37 to 42.
.SATURDAY...Sunny. Highs 68 to 73.

&&
               TEMPERATURE
Fairfield       72  42  71

$$
=

IDZ033-271600-
Upper Weiser River-
230 AM MDT Sun Sep 27 2026

.TODAY...Mostly cloudy. Highs 66 to 72. North winds up to 10 mph
this morning, becoming light this afternoon.
.TONIGHT...Mostly cloudy. A slight chance of showers in the
evening. Chance of rain 20 percent. Lows 44 to 49. North winds up
to 10 mph with gusts to 20 mph.
.MONDAY...Sunny. Highs 69 to 76. North winds 10 to 15 mph.
.MONDAY NIGHT...Mostly clear. Lows 43 to 48. North winds 10 to
15 mph.
.TUESDAY...Sunny. Highs 70 to 77. North winds up to 10 mph in the
morning, becoming light in the afternoon.
.TUESDAY NIGHT...Mostly clear. Lows 46 to 51.
.WEDNESDAY...Sunny. Highs 73 to 79.
.WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Lows 46 to 51.
Highs 74 to 80.
.THURSDAY NIGHT THROUGH FRIDAY NIGHT...Partly cloudy. Lows 46 to
54. Highs 71 to 78.
.SATURDAY...Sunny. Highs 70 to 78.

&&
               TEMPERATURE
Council         71  46  75
Cambridge       72  45  76

$$
=

ORZ064-271600-
Oregon Lower Treasure Valley-
230 AM MDT Sun Sep 27 2026 /130 AM PDT Sun Sep 27 2026/

.TODAY...Cloudy. Highs 69 to 74. North winds up to 10 mph.
.TONIGHT...Decreasing clouds. Lows 45 to 50. Northwest winds
10 to 15 mph.
.MONDAY...Sunny. Highs 74 to 79. Northwest winds 10 to 15 mph
with gusts to 25 mph.
.MONDAY NIGHT...Mostly clear. Lows 43 to 48. Northwest winds
10 to 15 mph with gusts to 25 mph.
.TUESDAY...Sunny. Highs 76 to 81. West winds up to 10 mph.
.TUESDAY NIGHT...Mostly clear. Lows 46 to 51.
.WEDNESDAY...Sunny. Highs 77 to 82.
.WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Lows 44 to 51.
Highs 77 to 82.
.THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows 46 to 53. Highs
75 to 80.
.FRIDAY NIGHT AND SATURDAY...Mostly clear. Lows 44 to 50. Highs
74 to 79.

&&
               TEMPERATURE
Ontario         72  45  77

$$
=

IDZ012-271600-
Lower Treasure Valley-
230 AM MDT Sun Sep 27 2026

.TODAY...Cloudy. Highs 68 to 73. North winds up to 10 mph.
.TONIGHT...Decreasing clouds. Lows 45 to 50. Northwest winds
10 to 15 mph.
.MONDAY...Sunny. Highs 73 to 78. Northwest winds 10 to 15 mph
with gusts to 25 mph.
.MONDAY NIGHT...Mostly clear. Lows 43 to 48. Northwest winds
10 to 15 mph.
.TUESDAY...Sunny. Highs 74 to 79. Northwest winds 10 to 15 mph.
.TUESDAY NIGHT...Mostly clear. Lows 46 to 51.
.WEDNESDAY...Sunny. Highs 77 to 82.
.WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Lows 46 to 51.
Highs 77 to 82.
.THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows 48 to 53. Highs
75 to 80.
.FRIDAY NIGHT AND SATURDAY...Mostly clear. Lows 46 to 51. Highs
74 to 79.

&&
               TEMPERATURE
Caldwell        71  47  76

$$
=

IDZ014-271600-
Upper Treasure Valley-
230 AM MDT Sun Sep 27 2026

.TODAY...Mostly cloudy. Highs 70 to 77. Southeast winds up to
10 mph this morning, shifting to northwest this afternoon.
.TONIGHT...Mostly cloudy. Lows 46 to 51. Breezy. Northwest winds
10 to 20 mph with gusts to 35 mph.
.MONDAY...Partly sunny in the morning, then clearing. Highs 73 to
78. Breezy. Northwest winds 10 to 20 mph with gusts to 30 mph.
.MONDAY NIGHT...Mostly clear. Lows 42 to 47. Breezy. Northwest
winds 10 to 20 mph with gusts to 30 mph.
.TUESDAY...Sunny. Highs 75 to 80. Breezy. Northwest winds up to
10 mph in the morning, increasing to 10 to 20 mph in the
afternoon.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Clear. Lows 44 to 52.
Highs 78 to 83. Breezy.
.THURSDAY AND THURSDAY NIGHT...Mostly clear. Highs 79 to 84. Lows
47 to 54.
.FRIDAY...Mostly sunny. Highs 76 to 81.
.FRIDAY NIGHT AND SATURDAY...Mostly clear. Lows 45 to 51. Highs
73 to 78.

&&
               TEMPERATURE
Boise           71  50  75
Mountain Home   74  49  76

$$
=

IDZ016-271600-
Western Magic Valley-
230 AM MDT Sun Sep 27 2026

.TODAY...Mostly cloudy. Highs 74 to 79. East winds 10 to 15 mph.
.TONIGHT...Mostly cloudy. Lows 46 to 51. Breezy. West winds 10 to
20 mph with gusts to 30 mph.
.MONDAY...Decreasing clouds. Highs 70 to 75. Breezy. West winds
10 to 20 mph with gusts to 30 mph.
.MONDAY NIGHT...Mostly clear. Lows 42 to 47. Breezy. West winds
10 to 20 mph with gusts to 30 mph.
.TUESDAY...Sunny. Highs 71 to 77. West winds 10 to 15 mph with
gusts to 25 mph.
.TUESDAY NIGHT THROUGH THURSDAY...Clear. Lows 43 to 48. Highs
74 to 81.
.THURSDAY NIGHT...Increasing clouds. Lows 47 to 52.
.FRIDAY AND FRIDAY NIGHT...Partly cloudy. Highs 74 to 79. Lows
44 to 49.
.SATURDAY...Sunny. Highs 70 to 75.

&&
               TEMPERATURE
Jerome          75  48  70
Twin Falls      75  49  70

$$
=

IDZ029-271600-
Owyhee Mountains-
230 AM MDT Sun Sep 27 2026

.TODAY...Cloudy. Highs 62 to 70.
.TONIGHT...Mostly cloudy. Lows 43 to 49.
.MONDAY...Partly sunny in the morning, then clearing. Highs 66 to
71.
.MONDAY NIGHT...Mostly clear. Lows 39 to 48.
.TUESDAY...Sunny. Highs 68 to 73.
.TUESDAY NIGHT...Mostly clear. Lows 43 to 51.
.WEDNESDAY AND WEDNESDAY NIGHT...Clear. Highs 71 to 77. Lows
43 to 51.
.THURSDAY...Sunny. Highs 71 to 80.
.THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows 46 to 53. Highs
68 to 76.
.FRIDAY NIGHT AND SATURDAY...Mostly clear. Lows 42 to 50. Highs
66 to 73.

$$
=

IDZ015-271600-
Southwest Highlands-
230 AM MDT Sun Sep 27 2026

.TODAY...Mostly cloudy. Highs 69 to 74.
.TONIGHT...Mostly cloudy. Lows 42 to 48. Breezy.
.MONDAY...Decreasing clouds. Highs 67 to 72. Breezy.
.MONDAY NIGHT...Mostly clear. Lows 38 to 44. Breezy.
.TUESDAY...Sunny. Highs 70 to 75.
.TUESDAY NIGHT...Mostly clear. Lows 41 to 46.
.WEDNESDAY AND WEDNESDAY NIGHT...Clear. Highs 74 to 79. Lows
42 to 47.
.THURSDAY...Sunny. Highs 77 to 82.
.THURSDAY NIGHT THROUGH FRIDAY NIGHT...Partly cloudy. Lows 41 to
50. Highs 74 to 79.
.SATURDAY...Sunny. Highs 69 to 74.

$$
=

IDZ030-271600-
Southern Twin  Falls County-
230 AM MDT Sun Sep 27 2026

.TODAY...Mostly cloudy. Highs 74 to 79.
.TONIGHT...Mostly cloudy. Lows 44 to 49. Breezy.
.MONDAY...Mostly sunny. Highs 67 to 72.
.MONDAY NIGHT...Mostly clear. Lows 41 to 46.
.TUESDAY...Sunny. Highs 69 to 74.
.TUESDAY NIGHT THROUGH THURSDAY...Clear. Lows 43 to 48. Highs
73 to 81.
.THURSDAY NIGHT...Increasing clouds. Lows 47 to 52.
.FRIDAY AND FRIDAY NIGHT...Partly cloudy. Highs 74 to 79. Lows
44 to 49.
.SATURDAY...Sunny. Highs 69 to 74.

$$
=

ORZ062-271600-
Baker County-
130 AM PDT Sun Sep 27 2026

.TODAY...Mostly cloudy. A chance of rain showers this afternoon.
Chance of rain 30 percent. Highs 63 to 70. Light winds this
morning, becoming east up to 10 mph this afternoon.
.TONIGHT...Mostly cloudy with a slight chance of rain showers in
the evening, then partly cloudy after midnight. Patchy fog after
midnight. Chance of rain 20 percent. Lows 36 to 46. Northwest
winds 10 to 15 mph.
.MONDAY...Areas of fog in the morning. Sunny. Highs 66 to 73.
Northwest winds 10 to 15 mph with gusts to 25 mph.
.MONDAY NIGHT...Mostly clear. Lows 36 to 46. Northwest winds
10 to 15 mph. Gusts to 25 mph in the evening.
.TUESDAY...Sunny. Highs 69 to 76. Northwest winds up to 10 mph.
.TUESDAY NIGHT...Mostly clear. Patchy fog after midnight. Lows
39 to 49.
.WEDNESDAY THROUGH THURSDAY...Areas of fog in the morning. Areas
of fog through the day. Mostly clear. Highs 70 to 78. Lows 36 to
49.
.THURSDAY NIGHT...Increasing clouds. Lows 37 to 50.
.FRIDAY...Patchy fog in the morning. Mostly sunny. Highs 68 to
76.
.FRIDAY NIGHT...Decreasing clouds. Areas of fog after midnight.
Lows 34 to 47.
.SATURDAY...Areas of fog in the morning. Sunny. Highs 68 to 76.

&&
               TEMPERATURE
Baker City      66  36  70

$$
=

ORZ061-271600-
Harney County-
130 AM PDT Sun Sep 27 2026

.TODAY...Cloudy. A chance of rain showers, mainly this afternoon.
Chance of rain 30 percent. Highs 65 to 70. East winds 10 to
15 mph this morning, shifting to south this afternoon. Gusts to
25 mph.
.TONIGHT...Mostly cloudy with a chance of rain showers in the
evening, then partly cloudy after midnight. Chance of rain
30 percent. Lows 35 to 44. Southwest winds 10 to 15 mph with
gusts to 25 mph in the evening, shifting to northwest after
midnight.
.MONDAY...Patchy fog in the morning. Sunny. Highs 66 to 72. West
winds 10 to 15 mph.
.MONDAY NIGHT...Mostly clear. Lows 35 to 42. Northwest winds
10 to 15 mph.
.TUESDAY...Sunny. Highs 70 to 76. West winds up to 10 mph.
.TUESDAY NIGHT...Mostly clear. Lows 37 to 44.
.WEDNESDAY...Patchy fog in the morning. Sunny. Highs 72 to 78.
.WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Lows 35 to 46.
Highs 73 to 80.
.THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows 36 to 47. Highs
69 to 75.
.FRIDAY NIGHT...Mostly clear. Lows 33 to 44.
.SATURDAY...Patchy fog in the morning. Sunny. Highs 68 to 74.

&&
               TEMPERATURE
Burns           69  35  71

$$
=

ORZ063-271600-
Malheur County-
230 AM MDT Sun Sep 27 2026 /130 AM PDT Sun Sep 27 2026/

.TODAY...Cloudy. Highs 65 to 72. Light winds this morning,
becoming north 10 to 15 mph this afternoon.
.TONIGHT...Mostly cloudy. A slight chance of rain showers in the
evening. Chance of rain 20 percent. Lows 40 to 49. West winds
10 to 15 mph. Gusts to 25 mph in the evening.
.MONDAY...Patchy fog in the morning. Sunny. Highs 69 to 76.
Northwest winds 10 to 15 mph.
.MONDAY NIGHT...Mostly clear. Lows 36 to 46. Northwest winds
10 to 15 mph.
.TUESDAY...Sunny. Highs 72 to 78. West winds up to 10 mph.
.TUESDAY NIGHT THROUGH THURSDAY...Mostly clear. Lows 39 to 49.
Highs 74 to 82.
.THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows 42 to 52. Highs
72 to 78.
.FRIDAY NIGHT AND SATURDAY...Mostly clear. Patchy fog through the
day. Lows 39 to 49. Highs 71 to 76.

$$
=