Zone Forecast Product
Issued by NWS Boise, ID

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FPUS55 KBOI 040908
ZFPBOI

Zone Forecasts for Southwest Idaho/Southeast Oregon
National Weather Service Boise ID
307 AM MDT Sat Oct 4 2025

Spot temperatures are for today, tonight, and Sunday.


IDZ011-041700-
West Central Mountains-
307 AM MDT Sat Oct 4 2025

.TODAY...Partly sunny. Patchy fog this morning. A slight chance
of rain and snow showers this morning, then a chance of rain
showers this afternoon. Chance of precipitation 30 percent. Highs
47 to 61.
.TONIGHT...Decreasing clouds. A chance of rain and snow showers.
Patchy fog. Chance of precipitation 40 percent. Lows 28 to 38.
.SUNDAY...Patchy fog in the morning. Partly cloudy with a chance
of rain and snow showers. Chance of precipitation 30 percent.
Highs 47 to 60.
.SUNDAY NIGHT...Mostly clear. Widespread frost after midnight.
Lows 26 to 36.
.MONDAY...Widespread frost in the morning. Sunny. Highs 51 to 64.
.MONDAY NIGHT AND TUESDAY...Clear. Lows 29 to 39. Highs 54 to 67.
.TUESDAY NIGHT AND WEDNESDAY...Clear. Patchy fog through the day.
Lows 32 to 42. Highs 57 to 70.
.WEDNESDAY NIGHT...Partly cloudy. A slight chance of rain showers
after midnight. Chance of rain 20 percent. Lows 35 to 45.
.THURSDAY...Patchy fog in the morning. Sunny. Highs 60 to 74.
.THURSDAY NIGHT...Mostly clear. Lows 36 to 46.
.FRIDAY...Sunny. Patchy fog in the morning. A slight chance of
rain showers in the afternoon. Chance of rain 20 percent. Highs
60 to 73.

&&
               TEMPERATURE
McCall          54  30  54

$$
=

IDZ013-041700-
Boise Mountains-
307 AM MDT Sat Oct 4 2025

.TODAY...Areas of fog this morning. Partly cloudy with a
20 percent chance of rain showers. Highs 49 to 64. Breezy.
.TONIGHT...Decreasing clouds. Patchy fog in the evening.
Widespread frost after midnight. Lows 24 to 39.
.SUNDAY...Partly cloudy. A chance of rain and snow showers,
mainly in the afternoon. Widespread frost in the morning. Patchy
fog. Chance of precipitation 30 percent. Highs 49 to 63.
.SUNDAY NIGHT...Decreasing clouds. Widespread frost after
midnight. Lows 23 to 38.
.MONDAY...Widespread frost in the morning. Sunny. Highs 51 to 65.
.MONDAY NIGHT THROUGH TUESDAY NIGHT...Clear. Lows 27 to 42. Highs
55 to 69.
.WEDNESDAY...Areas of fog in the morning. Sunny. Highs 59 to 73.
.WEDNESDAY NIGHT...Mostly clear. Lows 31 to 46.
.THURSDAY...Patchy fog in the morning. Sunny. Highs 61 to 75.
.THURSDAY NIGHT...Mostly clear. Lows 32 to 47.
.FRIDAY...Patchy fog in the morning. Sunny. Highs 62 to 76.

&&
               TEMPERATURE
Idaho City      62  27  62

$$
=

IDZ028-041700-
Camas Prairie-
307 AM MDT Sat Oct 4 2025

.TODAY...Patchy fog this morning. Partly cloudy with a 30 percent
chance of rain showers. Highs 57 to 62. Breezy. West winds 10 to
20 mph. Gusts to 35 mph this afternoon.
.TONIGHT...Increasing clouds. Widespread frost after midnight.
Lows 26 to 32. Breezy. Northwest winds 10 to 20 mph with gusts to
30 mph in the evening, decreasing to around 10 mph after
midnight.
.SUNDAY...Partly cloudy. A slight chance of rain and snow showers
in the morning, then a chance of rain showers in the afternoon.
Chance of precipitation 30 percent. Highs 49 to 54. Light winds.
.SUNDAY NIGHT...Decreasing clouds. Widespread frost after
midnight. Lows 24 to 29. Light winds.
.MONDAY...Widespread frost in the morning. Sunny. Highs 55 to 60.
Light winds.
.MONDAY NIGHT THROUGH WEDNESDAY...Clear. Lows 25 to 30. Highs
59 to 69.
.WEDNESDAY NIGHT THROUGH FRIDAY...Mostly clear. Lows 33 to 41.
Highs 66 to 72.

&&
               TEMPERATURE
Fairfield       61  26  52

$$
=

IDZ033-041700-
Upper Weiser River-
307 AM MDT Sat Oct 4 2025

.TODAY...Mostly sunny. Highs 59 to 65. Breezy. North winds 10 to
20 mph. Gusts to 30 mph this morning.
.TONIGHT...Decreasing clouds. Lows 37 to 42. North winds 10 to
15 mph with gusts to 25 mph.
.SUNDAY...Partly cloudy. A slight chance of rain showers in the
afternoon. Chance of rain 20 percent. Highs 59 to 65. North winds
10 to 15 mph. Gusts to 25 mph in the morning.
.SUNDAY NIGHT...Clear. Lows 35 to 40. North winds 10 to 15 mph.
.MONDAY...Areas of 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 THROUGH WEDNESDAY...Clear. Lows 38 to 45. Highs
62 to 72.
.WEDNESDAY NIGHT THROUGH FRIDAY...Mostly clear. Lows 43 to 50.
Highs 67 to 75.

&&
               TEMPERATURE
Council         64  39  64
Cambridge       65  38  65

$$
=

ORZ064-041700-
Oregon Lower Treasure Valley-
307 AM MDT Sat Oct 4 2025 /207 AM PDT Sat Oct 4 2025/

.TODAY...Mostly sunny. Highs 63 to 68. Breezy. Northwest winds
10 to 20 mph with gusts to 35 mph.
.TONIGHT...Partly cloudy in the evening, then clearing. Lows
41 to 46. Northwest winds 10 to 15 mph. Gusts to 30 mph in the
evening, decreasing to 20 mph after midnight.
.SUNDAY...Sunny. Highs 63 to 68. Northwest winds 10 to 15 mph.
.SUNDAY NIGHT...Clear. Lows 36 to 41. North winds up to 10 mph
with gusts to 20 mph.
.MONDAY...Sunny. Highs 63 to 68. North winds up to 10 mph in the
morning, becoming light in the afternoon.
.MONDAY NIGHT AND TUESDAY...Clear. Lows 36 to 42. Highs 65 to 70.
.TUESDAY NIGHT...Clear. Patchy fog after midnight. Lows 38 to 43.
.WEDNESDAY...Areas of fog in the morning. Sunny. Highs 69 to 74.
.WEDNESDAY NIGHT THROUGH FRIDAY...Mostly clear. Lows 40 to 47.
Highs 70 to 75.

&&
               TEMPERATURE
Ontario         67  42  67

$$
=

IDZ012-041700-
Lower Treasure Valley-
307 AM MDT Sat Oct 4 2025

.TODAY...Mostly sunny. Highs 62 to 67. Windy. Northwest winds
15 to 25 mph with gusts to 35 mph.
.TONIGHT...Partly cloudy in the evening, then clearing. Lows
39 to 44. Northwest winds 10 to 15 mph with gusts to 25 mph.
.SUNDAY...Patchy fog in the morning. Sunny. Highs 62 to 67.
Northwest winds 10 to 15 mph.
.SUNDAY NIGHT...Clear. Lows 36 to 41. Northwest winds up to
10 mph.
.MONDAY...Sunny. Highs 62 to 67. Light winds.
.MONDAY NIGHT AND TUESDAY...Clear. Lows 37 to 42. Highs 65 to 70.
.TUESDAY NIGHT...Clear. Patchy fog after midnight. Lows 39 to 44.
.WEDNESDAY...Areas of fog in the morning. Sunny. Highs 69 to 74.
.WEDNESDAY NIGHT...Mostly clear. Lows 41 to 46.
.THURSDAY THROUGH FRIDAY...Patchy fog in the morning. Patchy fog
through the day. Mostly clear. Highs 70 to 76. Lows 42 to 47.

&&
               TEMPERATURE
Caldwell        66  41  65

$$
=

IDZ014-041700-
Upper Treasure Valley-
307 AM MDT Sat Oct 4 2025

.TODAY...Partly cloudy. A slight chance of rain showers this
morning. Chance of rain 20 percent. Highs 61 to 66. Windy.
Northwest winds 20 to 30 mph with gusts to 45 mph.
.TONIGHT...Decreasing clouds. Patchy fog after midnight. Lows
37 to 42. Windy. Northwest winds 15 to 25 mph. Gusts to 40 mph in
the evening, decreasing to 30 mph after midnight.
.SUNDAY...Sunny. Highs 60 to 65. Breezy. Northwest winds 10 to
20 mph.
.SUNDAY NIGHT...Mostly clear. Areas of frost after midnight. Lows
33 to 41. Northwest winds 10 to 15 mph in the evening, shifting
to southeast after midnight.
.MONDAY...Areas of frost in the morning. Sunny. Highs 61 to 66.
Light winds.
.MONDAY NIGHT THROUGH TUESDAY NIGHT...Clear. Lows 36 to 46. Highs
67 to 72.
.WEDNESDAY THROUGH FRIDAY...Mostly clear. Highs 72 to 79. Lows
40 to 49.

&&
               TEMPERATURE
Boise           64  42  63
Mountain Home   65  39  63

$$
=

IDZ016-041700-
Western Magic Valley-
307 AM MDT Sat Oct 4 2025

.TODAY...Rain showers likely this morning, then partly cloudy
with a chance of rain showers this afternoon. Chance of rain
60 percent. Highs 55 to 62. Windy. West winds 15 to 25 mph with
gusts to 40 mph.
.TONIGHT...Partly cloudy. A slight chance of rain showers in the
evening. Chance of rain 20 percent. Lows 38 to 43. Windy. West
winds 15 to 25 mph. Gusts to 45 mph in the evening, decreasing to
35 mph after midnight.
.SUNDAY...Partly cloudy with a 20 percent chance of rain showers.
Highs 55 to 60. West winds 10 to 15 mph.
.SUNDAY NIGHT...Mostly clear. Patchy frost after midnight. Lows
33 to 38. Northwest winds around 10 mph in the evening, becoming
light after midnight.
.MONDAY...Areas of frost in the morning. Sunny. Highs 58 to 63.
East winds around 10 mph.
.MONDAY NIGHT AND TUESDAY...Clear. Lows 32 to 37. Highs 63 to 68.
.TUESDAY NIGHT...Clear. Lows 37 to 42.
.WEDNESDAY THROUGH FRIDAY...Mostly clear. Highs 69 to 77. Lows
41 to 47.

&&
               TEMPERATURE
Jerome          57  40  56
Twin Falls      57  40  56

$$
=

IDZ029-041700-
Owyhee Mountains-
307 AM MDT Sat Oct 4 2025

.TODAY...Mostly sunny. Highs 55 to 60. Breezy.
.TONIGHT...Decreasing clouds. Widespread frost after midnight.
Lows 32 to 42.
.SUNDAY...Widespread frost with patchy fog in the morning. Sunny.
Highs 53 to 58.
.SUNDAY NIGHT...Mostly clear. Widespread frost after midnight.
Lows 30 to 40.
.MONDAY...Widespread frost in the morning. Sunny. Highs 54 to 61.
.MONDAY NIGHT...Clear. Lows 33 to 41.
.TUESDAY...Sunny. Highs 59 to 66.
.TUESDAY NIGHT...Mostly clear. Patchy fog after midnight. Lows
37 to 45.
.WEDNESDAY THROUGH THURSDAY NIGHT...Mostly clear. Highs 63 to 73.
Lows 40 to 48.
.FRIDAY...Partly cloudy. A slight chance of rain showers in the
afternoon. Chance of rain 20 percent. Highs 65 to 73.

$$
=

IDZ015-041700-
Southwest Highlands-
307 AM MDT Sat Oct 4 2025

.TODAY...Partly cloudy. A chance of rain showers this morning.
Chance of rain 30 percent. Highs 54 to 61. Windy. Northwest winds
25 to 30 mph with gusts to 50 mph.
.TONIGHT...Partly cloudy. Areas of frost after midnight. Lows
33 to 38. Windy. Northwest winds around 25 mph with gusts to
40 mph in the evening.
.SUNDAY...Mostly sunny. Widespread frost with patchy fog in the
morning. A slight chance of rain showers in the afternoon. Chance
of rain 20 percent. Highs 52 to 59.
.SUNDAY NIGHT...Mostly clear. Widespread frost after midnight.
Lows 30 to 35.
.MONDAY...Widespread frost in the morning. Sunny. Highs 56 to 62.
.MONDAY NIGHT THROUGH TUESDAY NIGHT...Mostly clear. Lows 32 to
41. Highs 63 to 68.
.WEDNESDAY THROUGH THURSDAY NIGHT...Mostly clear. Highs 68 to 74.
Lows 39 to 45.
.FRIDAY...Partly cloudy. A slight chance of rain showers in the
afternoon. Chance of rain 20 percent. Highs 71 to 76.

$$
=

IDZ030-041700-
Southern Twin  Falls County-
307 AM MDT Sat Oct 4 2025

.TODAY...Rain showers likely this morning, then partly cloudy
with a chance of rain showers this afternoon. Chance of rain
60 percent. Highs 53 to 58. Windy. West winds 25 to 30 mph with
gusts to 40 mph.
.TONIGHT...Increasing clouds. Patchy fog after midnight. Lows
35 to 40. Windy. West winds around 25 mph in the evening. Gusts
to 40 mph.
.SUNDAY...Mostly sunny. Widespread frost with patchy fog in the
morning. A chance of rain showers in the afternoon. Chance of
rain 30 percent. Highs 52 to 57.
.SUNDAY NIGHT...Decreasing clouds. Widespread frost after
midnight. Lows 31 to 36.
.MONDAY...Widespread frost in the morning. Sunny. Highs 56 to 61.
.MONDAY NIGHT AND TUESDAY...Mostly clear. Lows 32 to 37. Highs
62 to 67.
.TUESDAY NIGHT THROUGH THURSDAY NIGHT...Mostly clear. Lows 38 to
47. Highs 68 to 75.
.FRIDAY...Partly cloudy. A slight chance of rain showers in the
afternoon. Chance of rain 20 percent. Highs 70 to 75.

$$
=

ORZ062-041700-
Baker County-
207 AM PDT Sat Oct 4 2025

.TODAY...Mostly sunny. Patchy fog this morning. A slight chance
of rain showers this afternoon. Chance of rain 20 percent. Highs
55 to 64. Breezy. Northwest winds 10 to 20 mph with gusts to
35 mph.
.TONIGHT...Partly cloudy with a slight chance of rain showers in
the evening, then mostly clear after midnight. Patchy fog.
Widespread frost after midnight. Chance of rain 20 percent. Lows
30 to 40. Breezy. Northwest winds 10 to 20 mph with gusts to
30 mph in the evening, decreasing to around 10 mph after
midnight.
.SUNDAY...Widespread frost with patchy fog in the morning. Sunny.
Highs 57 to 65. Northwest winds 10 to 15 mph.
.SUNDAY NIGHT...Clear. Widespread frost after midnight. Lows
27 to 37. North winds 10 to 15 mph. Gusts to 25 mph in the
evening.
.MONDAY...Widespread frost in the morning. Sunny. Highs 60 to 67.
Light winds.
.MONDAY NIGHT AND TUESDAY...Clear. Lows 29 to 41. Highs 62 to 69.
.TUESDAY NIGHT...Clear. Patchy fog after midnight. Lows 33 to 44.
.WEDNESDAY...Areas of fog in the morning. Sunny. Highs 65 to 72.
.WEDNESDAY NIGHT...Mostly clear in the evening, then partly
cloudy with a slight chance of rain showers after midnight.
Chance of rain 20 percent. Lows 35 to 46.
.THURSDAY...Partly cloudy. A slight chance of rain showers in the
morning. Patchy fog in the morning. Chance of rain 20 percent.
Highs 68 to 75.
.THURSDAY NIGHT...Mostly clear. Lows 37 to 48.
.FRIDAY...Partly cloudy. A slight chance of rain showers in the
afternoon. Chance of rain 20 percent. Highs 67 to 74.

&&
               TEMPERATURE
Baker City      59  31  61

$$
=

ORZ061-041700-
Harney County-
207 AM PDT Sat Oct 4 2025

.TODAY...Patchy fog this morning. Mostly sunny. Highs 53 to 60.
Northwest winds 10 to 15 mph. Gusts to 30 mph this afternoon.
.TONIGHT...Decreasing clouds. Patchy fog. Widespread frost after
midnight. Lows 27 to 36. Northwest winds 10 to 15 mph. Gusts to
30 mph in the evening.
.SUNDAY...Widespread frost with patchy fog in the morning. Mostly
sunny. Highs 54 to 61. North winds up to 10 mph.
.SUNDAY NIGHT...Mostly clear. Widespread frost after midnight.
Lows 24 to 33. Northeast winds up to 10 mph. Gusts to 20 mph in
the evening.
.MONDAY...Widespread frost in the morning. Sunny. Highs 56 to 64.
Northeast winds up to 10 mph. Gusts to 20 mph in the afternoon.
.MONDAY NIGHT AND TUESDAY...Mostly clear. Lows 27 to 35. Highs
61 to 69.
.TUESDAY NIGHT...Clear. Lows 29 to 41.
.WEDNESDAY AND WEDNESDAY NIGHT...Mostly clear. Highs 65 to 74.
Lows 32 to 43.
.THURSDAY...Mostly sunny. Highs 66 to 73.
.THURSDAY NIGHT AND FRIDAY...Partly cloudy. A 20 percent chance
of rain showers. Lows 33 to 43. Highs 65 to 73.

&&
               TEMPERATURE
Burns           59  27  61

$$
=

ORZ063-041700-
Malheur County-
307 AM MDT Sat Oct 4 2025 /207 AM PDT Sat Oct 4 2025/

.TODAY...Mostly sunny. Highs 57 to 65. Breezy. Northwest winds
10 to 20 mph with gusts to 30 mph.
.TONIGHT...Decreasing clouds. Areas of frost after midnight. Lows
32 to 42. Northwest winds 10 to 15 mph. Gusts to 25 mph in the
evening.
.SUNDAY...Areas of frost in the morning. Sunny. Highs 57 to 64.
North winds 10 to 15 mph.
.SUNDAY NIGHT...Mostly clear. Widespread frost after midnight.
Lows 29 to 39. North winds up to 10 mph with gusts to 20 mph.
.MONDAY...Widespread frost in the morning. Sunny. Highs 59 to 65.
Northeast winds up to 10 mph.
.MONDAY NIGHT AND TUESDAY...Mostly clear. Lows 30 to 40. Highs
62 to 68.
.TUESDAY NIGHT...Clear. Lows 34 to 41.
.WEDNESDAY AND WEDNESDAY NIGHT...Mostly clear. Highs 66 to 73.
Lows 37 to 45.
.THURSDAY...Mostly sunny. Highs 68 to 74.
.THURSDAY NIGHT AND FRIDAY...Mostly clear. Lows 38 to 46. Highs
68 to 74.

$$
=