Zone Forecast Product
Issued by NWS Boise, ID

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064
FPUS55 KBOI 052108
ZFPBOI

Zone Forecasts for Southwest Idaho/Southeast Oregon
National Weather Service Boise ID
307 PM MDT Sun Oct 5 2025

Spot temperatures are for tonight, Monday, Monday night, and
Tuesday.


IDZ011-060500-
West Central Mountains-
307 PM MDT Sun Oct 5 2025

.TONIGHT...Mostly clear. Widespread frost with areas of fog after
midnight. Lows 27 to 37.
.MONDAY...Widespread frost with areas of fog in the morning.
Sunny. Highs 51 to 64.
.MONDAY NIGHT...Mostly clear. Areas of fog after midnight. Lows
30 to 40.
.TUESDAY...Areas of fog in the morning. Sunny. Highs 55 to 67.
.TUESDAY NIGHT...Clear. Lows 32 to 42.
.WEDNESDAY...Sunny. Highs 57 to 70.
.WEDNESDAY NIGHT THROUGH THURSDAY NIGHT...Mostly clear. Lows
37 to 47. Highs 64 to 77.
.FRIDAY...Partly cloudy. A slight chance of rain showers in the
afternoon. Chance of rain 20 percent. Highs 61 to 74.
.FRIDAY NIGHT...Mostly cloudy with a 50 percent chance of rain
showers. Lows 36 to 46.
.SATURDAY...Increasing clouds. Areas of fog in the morning. Rain
showers likely. Chance of rain 60 percent. Cooler with highs
48 to 61.
.SATURDAY NIGHT...Rain and snow showers likely. Patchy fog in the
evening. Areas of fog after midnight. Chance of precipitation
60 percent. Light snow accumulations possible. Lows 29 to 39.
.SUNDAY...Rain and snow showers likely. Areas of fog in the
morning. Patchy fog in the afternoon. Chance of precipitation
70 percent. Light snow accumulations possible. Cooler with highs
38 to 52.

&&
                  TEMPERATURE
McCall          27  59  30  62

$$
=

IDZ013-060500-
Boise Mountains-
307 PM MDT Sun Oct 5 2025

.TONIGHT...Mostly clear. Patchy fog this evening. Widespread
frost with areas of fog after midnight. Lows 24 to 39.
.MONDAY...Widespread frost with areas of fog in the morning.
Sunny. Highs 51 to 65.
.MONDAY NIGHT...Mostly clear. Patchy fog in the evening. Areas of
fog after midnight. Lows 27 to 42.
.TUESDAY...Areas of fog in the morning. Sunny. Highs 56 to 70.
.TUESDAY NIGHT...Clear. Lows 28 to 43.
.WEDNESDAY AND WEDNESDAY NIGHT...Clear. Highs 61 to 75. Lows
32 to 47.
.THURSDAY AND THURSDAY NIGHT...Mostly clear. Highs 65 to 78. Lows
35 to 50.
.FRIDAY...Partly cloudy. A slight chance of rain showers in the
afternoon. Chance of rain 20 percent. Highs 65 to 78.
.FRIDAY NIGHT...Increasing clouds. A 40 percent chance of rain
showers. Patchy fog after midnight. Lows 33 to 48.
.SATURDAY...Areas of fog in the morning. Partly cloudy with a
50 percent chance of rain showers. Cooler with highs 51 to 64.
.SATURDAY NIGHT...Mostly cloudy with a chance of rain and snow
showers. Areas of fog after midnight. Chance of precipitation
40 percent. Lows 25 to 40.
.SUNDAY...Areas of fog in the morning. Partly cloudy with a
chance of rain and snow showers. Chance of precipitation
50 percent. Highs 41 to 55.

&&
                  TEMPERATURE
Idaho City      27  64  29  69

$$
=

IDZ028-060500-
Camas Prairie-
307 PM MDT Sun Oct 5 2025

.TONIGHT...Partly cloudy this evening, then clearing. Patchy fog
this evening. Widespread frost with areas of fog after midnight.
Lows 25 to 30. Light winds.
.MONDAY...Widespread frost with areas of fog in the morning.
Sunny. Highs 55 to 60. Light winds.
.MONDAY NIGHT...Mostly clear. Lows 26 to 32. Light winds.
.TUESDAY...Sunny. Highs 60 to 65. East winds around 10 mph with
gusts to 20 mph.
.TUESDAY NIGHT...Clear. Lows 28 to 34. Northeast winds around
10 mph.
.WEDNESDAY...Sunny. Highs 64 to 69.
.WEDNESDAY NIGHT THROUGH FRIDAY...Mostly clear. Lows 36 to 43.
Highs 69 to 74.
.FRIDAY NIGHT...Increasing clouds. A chance of rain showers. A
slight chance of thunderstorms after midnight. Chance of rain
40 percent. Lows 35 to 40.
.SATURDAY...Partly cloudy with a 40 percent chance of rain
showers. Cooler with highs 58 to 63.
.SATURDAY NIGHT...Mostly cloudy with a 30 percent chance of rain
showers. Lows 28 to 33.
.SUNDAY...A chance of snow showers in the morning. Partly cloudy
with a chance of rain showers. Chance of precipitation
30 percent. Cooler with highs 48 to 53.

&&
                  TEMPERATURE
Fairfield       25  58  26  63

$$
=

IDZ033-060500-
Upper Weiser River-
307 PM MDT Sun Oct 5 2025

.TONIGHT...Mostly clear. Lows 36 to 41. North winds 10 to 15 mph.
.MONDAY...Areas of fog and frost in the morning. Sunny. Highs
59 to 66. Northeast winds up to 10 mph in the morning, becoming
light in the afternoon.
.MONDAY NIGHT...Mostly clear. Lows 37 to 43. Light winds.
.TUESDAY...Sunny. Highs 63 to 69. Light winds.
.TUESDAY NIGHT...Clear. Lows 39 to 45. Light winds.
.WEDNESDAY...Sunny. Highs 66 to 72.
.WEDNESDAY NIGHT THROUGH FRIDAY...Mostly clear. Lows 44 to 51.
Highs 69 to 77.
.FRIDAY NIGHT...Mostly cloudy with a 40 percent chance of
showers. Lows 44 to 50.
.SATURDAY...Partly cloudy with a 50 percent chance of rain
showers. Cooler with highs 58 to 64.
.SATURDAY NIGHT...Mostly cloudy with a 50 percent chance of rain
showers. Patchy fog after midnight. Lows 37 to 42.
.SUNDAY...Decreasing clouds. Areas of fog in the morning. Rain
showers likely. Chance of rain 60 percent. Highs 50 to 56.

&&
                  TEMPERATURE
Council         37  66  40  69
Cambridge       36  66  37  68

$$
=

ORZ064-060500-
Oregon Lower Treasure Valley-
307 PM MDT Sun Oct 5 2025 /207 PM PDT Sun Oct 5 2025/

.TONIGHT...Clear. Lows 36 to 41. Northwest winds up to 10 mph
with gusts to 20 mph.
.MONDAY...Areas of fog in the morning. Sunny. Highs 63 to 68.
Northwest winds up to 10 mph in the morning, becoming light in
the afternoon.
.MONDAY NIGHT...Mostly clear. Patchy fog after midnight. Lows
37 to 42. Light winds.
.TUESDAY...Areas of fog in the morning. Sunny. Highs 66 to 71.
Light winds in the morning, becoming southeast around 10 mph in
the afternoon.
.TUESDAY NIGHT...Clear. Lows 38 to 43. Light winds.
.WEDNESDAY...Sunny. Highs 69 to 74.
.WEDNESDAY NIGHT THROUGH FRIDAY...Mostly clear. Lows 42 to 48.
Highs 73 to 78.
.FRIDAY NIGHT AND SATURDAY...Mostly cloudy. A 30 percent chance
of rain showers. Lows 43 to 48. Highs 63 to 68.
.SATURDAY NIGHT...Mostly cloudy with a 40 percent chance of rain
showers. Lows 39 to 44.
.SUNDAY...Patchy fog in the morning. Partly cloudy with a
40 percent chance of rain showers. Highs 56 to 61.

&&
                  TEMPERATURE
Ontario         37  66  37  69

$$
=

IDZ012-060500-
Lower Treasure Valley-
307 PM MDT Sun Oct 5 2025

.TONIGHT...Clear. Patchy fog after midnight. Lows 36 to 41.
Northwest winds up to 10 mph with gusts to 20 mph.
.MONDAY...Areas of fog in the morning. Sunny. Highs 62 to 67.
Light winds.
.MONDAY NIGHT...Mostly clear. Areas of fog after midnight. Lows
37 to 42. Light winds.
.TUESDAY...Areas of fog in the morning. Sunny. Highs 66 to 71.
Southeast winds 10 to 15 mph.
.TUESDAY NIGHT...Clear. Lows 39 to 44. Southeast winds up to
10 mph.
.WEDNESDAY...Sunny. Highs 71 to 76.
.WEDNESDAY NIGHT THROUGH FRIDAY...Mostly clear. Lows 43 to 51.
Highs 73 to 79.
.FRIDAY NIGHT AND SATURDAY...Mostly cloudy. A 30 percent chance
of rain showers. Cooler. Lows 44 to 49. Highs 62 to 67.
.SATURDAY NIGHT...Mostly cloudy with a 30 percent chance of rain
showers. Lows 39 to 44.
.SUNDAY...Patchy fog in the morning. Partly cloudy with a
40 percent chance of rain showers. Highs 55 to 60.

&&
                  TEMPERATURE
Caldwell        37  66  38  71

$$
=

IDZ014-060500-
Upper Treasure Valley-
307 PM MDT Sun Oct 5 2025

.TONIGHT...Mostly clear. Areas of fog after midnight. Lows 34 to
42. Northwest winds 10 to 15 mph this evening, shifting to east
after midnight.
.MONDAY...Areas of fog and frost in the morning. Sunny. Highs
62 to 67. Light winds.
.MONDAY NIGHT...Mostly clear. Areas of fog after midnight. Lows
34 to 43. Light winds.
.TUESDAY...Patchy fog in the morning. Sunny. Highs 68 to 73.
Southeast winds 10 to 15 mph.
.TUESDAY NIGHT...Clear. Lows 37 to 46. Southeast winds 10 to
15 mph.
.WEDNESDAY THROUGH FRIDAY...Mostly clear. Highs 73 to 82. Lows
43 to 53.
.FRIDAY NIGHT AND SATURDAY...Mostly cloudy. A 30 percent chance
of rain showers. Cooler. Lows 43 to 49. Highs 64 to 69.
.SATURDAY NIGHT AND SUNDAY...Mostly cloudy. A 30 percent chance
of rain showers. Patchy fog through the day. Lows 37 to 42. Highs
56 to 61.

&&
                  TEMPERATURE
Boise           42  66  43  70
Mountain Home   37  66  37  71

$$
=

IDZ016-060500-
Western Magic Valley-
307 PM MDT Sun Oct 5 2025

...FROST ADVISORY IN EFFECT FROM 2 AM TO 10 AM MDT MONDAY...

.TONIGHT...Mostly clear. Areas of fog. Patchy frost after
midnight. Lows 34 to 39. Light winds.
.MONDAY...Areas of fog and frost in the morning. Sunny. Highs
58 to 63. Light winds.
.MONDAY NIGHT...Mostly clear. Lows 32 to 38. East winds up to
10 mph.
.TUESDAY...Patchy fog in the morning. Sunny. Highs 63 to 68. East
winds 10 to 15 mph.
.TUESDAY NIGHT...Clear. Lows 35 to 42. East winds 10 to 15 mph.
.WEDNESDAY AND WEDNESDAY NIGHT...Mostly clear. Highs 70 to 75.
Lows 42 to 48.
.THURSDAY THROUGH FRIDAY...Mostly clear. Highs 75 to 80. Lows
46 to 51.
.FRIDAY NIGHT...Mostly cloudy with a 30 percent chance of rain
showers. Lows 45 to 50.
.SATURDAY...Partly cloudy with a 40 percent chance of rain
showers. Cooler with highs 61 to 67.
.SATURDAY NIGHT...Mostly cloudy with a 30 percent chance of rain
showers. Lows 38 to 43.
.SUNDAY...Partly cloudy with a 30 percent chance of rain showers.
Highs 53 to 58.

&&
                  TEMPERATURE
Jerome          37  60  37  65
Twin Falls      35  60  34  65

$$
=

IDZ029-060500-
Owyhee Mountains-
307 PM MDT Sun Oct 5 2025

.TONIGHT...Mostly clear. Widespread frost with areas of fog after
midnight. Lows 30 to 40.
.MONDAY...Widespread frost with areas of fog in the morning.
Sunny. Highs 56 to 63.
.MONDAY NIGHT...Mostly clear. Patchy fog after midnight. Lows
33 to 42.
.TUESDAY...Patchy fog in the morning. Sunny. Highs 61 to 69.
.TUESDAY NIGHT...Clear. Lows 38 to 46.
.WEDNESDAY THROUGH THURSDAY NIGHT...Mostly clear. Highs 66 to 75.
Lows 42 to 51.
.FRIDAY...Partly cloudy. A slight chance of rain showers in the
afternoon. Chance of rain 20 percent. Highs 68 to 74.
.FRIDAY NIGHT...Mostly cloudy with a 30 percent chance of rain
showers. Lows 39 to 47.
.SATURDAY...Partly cloudy with a 40 percent chance of rain
showers. Cooler with highs 56 to 61.
.SATURDAY NIGHT...Mostly cloudy with a chance of rain showers,
mixed with snow after midnight. Chance of precipitation
30 percent. Lows 31 to 41.
.SUNDAY...A chance of snow showers in the morning. Partly cloudy
with a chance of rain showers. Chance of precipitation
50 percent. Highs 49 to 54.

$$
=

IDZ015-060500-
Southwest Highlands-
307 PM MDT Sun Oct 5 2025

.TONIGHT...Mostly clear. Widespread frost with patchy fog after
midnight. Lows 31 to 36.
.MONDAY...Widespread frost with patchy fog in the morning. Sunny.
Highs 57 to 63.
.MONDAY NIGHT...Mostly clear. Lows 31 to 36.
.TUESDAY...Sunny. Highs 64 to 69.
.TUESDAY NIGHT...Mostly clear. Lows 35 to 42.
.WEDNESDAY THROUGH THURSDAY NIGHT...Mostly clear. Highs 70 to 78.
Lows 41 to 49.
.FRIDAY...Partly cloudy. A slight chance of rain showers in the
afternoon. Chance of rain 20 percent. Highs 72 to 79.
.FRIDAY NIGHT AND SATURDAY...Mostly cloudy. A 40 percent chance
of rain showers. Cooler. Lows 40 to 45. Highs 59 to 64.
.SATURDAY NIGHT...Mostly cloudy with a 30 percent chance of rain
showers. Lows 33 to 38.
.SUNDAY...Partly cloudy with a 40 percent chance of rain showers.
Cooler with highs 50 to 56.

$$
=

IDZ030-060500-
Southern Twin  Falls County-
307 PM MDT Sun Oct 5 2025

.TONIGHT...Mostly clear. Patchy fog this evening. Widespread
frost with areas of fog after midnight. Lows 32 to 37.
.MONDAY...Widespread frost with areas of fog in the morning.
Sunny. Highs 56 to 61.
.MONDAY NIGHT...Mostly clear. Lows 32 to 37.
.TUESDAY...Sunny. Highs 63 to 68.
.TUESDAY NIGHT...Mostly clear. Lows 37 to 42.
.WEDNESDAY THROUGH THURSDAY NIGHT...Mostly clear. Highs 69 to 77.
Lows 43 to 51.
.FRIDAY...Partly cloudy. A slight chance of rain showers in the
afternoon. Chance of rain 20 percent. Highs 73 to 78.
.FRIDAY NIGHT...Mostly cloudy with a 40 percent chance of rain
showers. Lows 44 to 49.
.SATURDAY...Partly cloudy with a 50 percent chance of rain
showers. Cooler with highs 60 to 65.
.SATURDAY NIGHT...Mostly cloudy with a 40 percent chance of rain
showers. Lows 36 to 41.
.SUNDAY...Partly cloudy with a 30 percent chance of rain showers.
Highs 51 to 56.

$$
=

ORZ062-060500-
Baker County-
207 PM PDT Sun Oct 5 2025

.TONIGHT...Mostly clear. Widespread frost with areas of fog after
midnight. Lows 27 to 37. Northwest winds 10 to 15 mph. Gusts to
25 mph this evening.
.MONDAY...Widespread frost with areas of fog in the morning.
Sunny. Highs 61 to 67. Light winds.
.MONDAY NIGHT...Clear. Lows 29 to 40. Light winds.
.TUESDAY...Areas of fog in the morning. Sunny. Highs 62 to 69.
Southeast winds 10 to 15 mph. Gusts to 25 mph in the afternoon.
.TUESDAY NIGHT...Clear. Lows 32 to 42. Southeast winds 10 to
15 mph with gusts to 25 mph in the evening, becoming light after
midnight.
.WEDNESDAY...Patchy fog in the morning. Sunny. Highs 65 to 72.
.WEDNESDAY NIGHT...Mostly clear. Lows 37 to 47.
.THURSDAY...Patchy fog in the morning. Sunny. Highs 69 to 77.
.THURSDAY NIGHT...Mostly clear. Lows 38 to 49.
.FRIDAY...Partly cloudy. A slight chance of rain showers in the
afternoon. Chance of rain 20 percent. Highs 69 to 76.
.FRIDAY NIGHT...Mostly cloudy with a 40 percent chance of rain
showers. Patchy fog after midnight. Lows 35 to 45.
.SATURDAY...Areas of fog in the morning. Partly cloudy with a
40 percent chance of rain showers. Cooler with highs 58 to 64.
.SATURDAY NIGHT...Rain showers likely in the evening, then a
chance of rain and snow showers after midnight. Areas of fog
after midnight. Chance of precipitation 60 percent. Little snow
accumulation expected. Lows 31 to 40.
.SUNDAY...Increasing clouds. Areas of fog in the morning. Rain
and snow showers likely. Chance of precipitation 60 percent.
Little snow accumulation expected. Highs 48 to 56.

&&
                  TEMPERATURE
Baker City      27  64  29  68

$$
=

ORZ061-060500-
Harney County-
207 PM PDT Sun Oct 5 2025

.TONIGHT...Mostly clear. Widespread frost after midnight. Lows
26 to 34. Northeast winds up to 10 mph. Gusts to 20 mph this
evening.
.MONDAY...Widespread frost with patchy fog in the morning. Sunny.
Highs 58 to 64. Northeast winds up to 10 mph. Gusts to 20 mph in
the afternoon.
.MONDAY NIGHT...Mostly clear. Lows 26 to 36. East winds 10 to
15 mph.
.TUESDAY...Patchy fog in the morning. Sunny. Highs 63 to 71. East
winds up to 10 mph. Gusts to 20 mph in the afternoon.
.TUESDAY NIGHT...Clear. Lows 29 to 41. Southeast winds up to
10 mph with gusts to 20 mph.
.WEDNESDAY...Patchy fog in the morning. Sunny. Highs 67 to 75.
.WEDNESDAY NIGHT...Mostly clear. Lows 34 to 44.
.THURSDAY...Mostly sunny. Highs 67 to 74.
.THURSDAY NIGHT...Decreasing clouds. Lows 33 to 43.
.FRIDAY...Partly cloudy. A slight chance of rain showers in the
afternoon. Chance of rain 20 percent. Highs 66 to 73.
.FRIDAY NIGHT...Partly cloudy with a slight chance of rain
showers in the evening, then mostly cloudy with a chance of rain
showers after midnight. Chance of rain 30 percent. Lows 30 to 39.
.SATURDAY...Patchy fog in the morning. Partly cloudy with a
30 percent chance of rain showers. Cooler with highs 53 to 61.
.SATURDAY NIGHT...Mostly cloudy with a 40 percent chance of rain
showers. Patchy fog after midnight. Lows 28 to 35.
.SUNDAY...A chance of snow showers in the morning. Areas of fog
in the morning. Partly cloudy with a chance of rain showers.
Chance of precipitation 40 percent. Highs 46 to 53.

&&
                  TEMPERATURE
Burns           26  64  26  70

$$
=

ORZ063-060500-
Malheur County-
307 PM MDT Sun Oct 5 2025 /207 PM PDT Sun Oct 5 2025/

.TONIGHT...Mostly clear. Widespread frost with patchy fog after
midnight. Lows 30 to 40. North winds up to 10 mph with gusts to
20 mph.
.MONDAY...Widespread frost with areas of fog in the morning.
Sunny. Highs 60 to 66. Northeast winds up to 10 mph.
.MONDAY NIGHT...Mostly clear. Lows 30 to 40. East winds up to
10 mph.
.TUESDAY...Sunny. Highs 63 to 70. East winds up to 10 mph.
.TUESDAY NIGHT...Clear. Lows 34 to 42. South winds up to 10 mph.
.WEDNESDAY THROUGH FRIDAY...Mostly clear. Highs 67 to 76. Lows
38 to 47.
.FRIDAY NIGHT...Increasing clouds. A 30 percent chance of rain
showers. Lows 37 to 45.
.SATURDAY AND SATURDAY NIGHT...Mostly cloudy. A 30 percent chance
of rain showers. Cooler. Highs 59 to 65. Lows 31 to 41.
.SUNDAY...Partly cloudy with a 40 percent chance of rain showers.
Highs 51 to 58.

$$
=