Zone Forecast Product
Issued by NWS Boise, ID

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FPUS55 KBOI 172108
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Zone Forecasts for Southwest Idaho/Southeast Oregon
National Weather Service Boise ID
307 PM MDT Fri Oct 17 2025

Spot temperatures are for tonight, Saturday, Saturday night, and
Sunday.


IDZ011-180500-
West Central Mountains-
307 PM MDT Fri Oct 17 2025

.TONIGHT...Mostly clear. Patchy fog this evening. Areas of fog
after midnight. Lows 24 to 34.
.SATURDAY...Areas of fog in the morning. Sunny. Highs 47 to 60.
.SATURDAY NIGHT...Partly cloudy in the evening, then mostly
cloudy with a chance of rain showers after midnight. Chance of
rain 30 percent. Lows 32 to 41.
.SUNDAY...Rain showers in the morning, then rain and snow showers
in the afternoon. Chance of precipitation 90 percent. Little snow
accumulation expected. Highs 41 to 55.
.SUNDAY NIGHT...Rain and snow showers likely in the evening, then
partly cloudy with a chance of rain and snow showers after
midnight. Patchy fog in the evening, then areas of fog after
midnight. Chance of precipitation 60 percent. Little snow
accumulation expected. Lows 23 to 33.
.MONDAY...Areas of fog in the morning. Sunny. Highs 42 to 55.
.MONDAY NIGHT...Mostly clear. Patchy fog after midnight. Lows
25 to 35.
.TUESDAY...Patchy fog in the morning. Mostly sunny. Highs 46 to
59.
.TUESDAY NIGHT...Decreasing clouds. Areas of fog after midnight.
Lows 28 to 36.
.WEDNESDAY...Areas of fog in the morning. Sunny. Highs 49 to 62.
.WEDNESDAY NIGHT...Partly cloudy. Lows 29 to 39.
.THURSDAY...A slight chance of snow showers in the morning.
Partly cloudy with a slight chance of rain showers. Chance of
precipitation 20 percent. Highs 51 to 63.
.THURSDAY NIGHT...Partly cloudy. A chance of rain showers, mainly
after midnight. Chance of rain 30 percent. Lows 33 to 42.
.FRIDAY...Partly cloudy with a 30 percent chance of rain showers.
Highs 50 to 63.

&&
                  TEMPERATURE
McCall          25  55  34  49

$$
=

IDZ013-180500-
Boise Mountains-
307 PM MDT Fri Oct 17 2025

.TONIGHT...Mostly clear. Areas of fog after midnight. Lows 23 to
37.
.SATURDAY...Areas of fog in the morning. Sunny. Highs 51 to 63.
.SATURDAY NIGHT...Mostly clear. Lows 29 to 44.
.SUNDAY...Rain showers. Chance of rain 80 percent. Highs 45 to
60.
.SUNDAY NIGHT...Partly cloudy with a slight chance of rain and
snow showers in the evening, then mostly clear after midnight.
Areas of fog after midnight. Chance of precipitation 20 percent.
Colder with lows 20 to 35. Breezy. Gusts to 35 mph in the
evening.
.MONDAY...Areas of fog in the morning. Sunny. Highs 44 to 58.
.MONDAY NIGHT AND TUESDAY...Mostly clear. Patchy fog through the
day. Lows 22 to 37. Highs 49 to 63.
.TUESDAY NIGHT...Partly cloudy. Patchy fog after midnight. Lows
24 to 39.
.WEDNESDAY...Areas of fog in the morning. Sunny. Highs 51 to 65.
.WEDNESDAY NIGHT...Mostly clear. Lows 25 to 40.
.THURSDAY...Patchy fog in the morning. Sunny. Highs 55 to 68.
.THURSDAY NIGHT...Partly cloudy. Lows 30 to 45.
.FRIDAY...Patchy fog in the morning. Partly cloudy with a
20 percent chance of rain showers. Highs 54 to 68.

&&
                  TEMPERATURE
Idaho City      26  62  32  59

$$
=

IDZ028-180500-
Camas Prairie-
307 PM MDT Fri Oct 17 2025

.TONIGHT...Mostly clear. Lows 25 to 30. West winds 10 to 15 mph.
Gusts to 30 mph this evening.
.SATURDAY...Sunny. Highs 55 to 60. Light winds.
.SATURDAY NIGHT...Mostly clear. Lows 29 to 35. Light winds.
.SUNDAY...Partly cloudy. A chance of rain showers, mainly in the
afternoon. Chance of rain 40 percent. Highs 55 to 60. Temperature
falling into the lower 50s in the afternoon. Breezy. Light winds
in the morning, becoming west 10 to 20 mph with gusts to 35 mph
in the afternoon.
.SUNDAY NIGHT...Mostly clear. Lows 22 to 27. Windy. West winds
15 to 25 mph with gusts to 35 mph in the evening, becoming
northwest 10 to 15 mph with gusts to 25 mph after midnight.
.MONDAY AND MONDAY NIGHT...Mostly clear. Highs 51 to 56. Lows
24 to 29.
.TUESDAY...Sunny. Highs 56 to 61.
.TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. Lows 26 to 31.
Highs 57 to 62.
.WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Lows 28 to 33.
Highs 59 to 64.
.THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows 32 to 37. Highs
58 to 63.

&&
                  TEMPERATURE
Fairfield       25  58  29  57

$$
=

IDZ033-180500-
Upper Weiser River-
307 PM MDT Fri Oct 17 2025

.TONIGHT...Mostly clear. Patchy fog after midnight. Lows 32 to
37. Light winds.
.SATURDAY...Areas of fog in the morning. Sunny. Highs 55 to 62.
Light winds.
.SATURDAY NIGHT...Partly cloudy. A slight chance of rain showers
after midnight. Chance of rain 20 percent. Lows 40 to 45. Light
winds.
.SUNDAY...Rain showers in the morning, then partly cloudy with a
chance of rain showers in the afternoon. Chance of rain
80 percent. Highs 54 to 59. Southwest winds 10 to 15 mph. Gusts
to 25 mph in the afternoon.
.SUNDAY NIGHT...Partly cloudy with a chance of rain showers in
the evening, then mostly clear after midnight. Areas of fog after
midnight. Chance of rain 30 percent. Lows 31 to 36. West winds
10 to 15 mph with gusts to 25 mph in the evening, becoming light
after midnight.
.MONDAY...Areas of fog in the morning. Sunny. Highs 51 to 58.
.MONDAY NIGHT...Mostly clear. Lows 33 to 38.
.TUESDAY...Mostly sunny. Highs 53 to 60.
.TUESDAY NIGHT...Decreasing clouds. Lows 35 to 40.
.WEDNESDAY...Sunny. Highs 56 to 63.
.WEDNESDAY NIGHT AND THURSDAY...Partly cloudy. Lows 37 to 42.
Highs 58 to 65.
.THURSDAY NIGHT...Partly cloudy with a 20 percent chance of rain
showers. Lows 40 to 45.
.FRIDAY...Partly cloudy with a 30 percent chance of rain showers.
Highs 59 to 65.

&&
                  TEMPERATURE
Council         34  61  42  57
Cambridge       32  62  40  59

$$
=

ORZ064-180500-
Oregon Lower Treasure Valley-
307 PM MDT Fri Oct 17 2025 /207 PM PDT Fri Oct 17 2025/

...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM MDT /8 AM PDT/
SATURDAY...

.TONIGHT...Mostly clear. Lows 33 to 38. Northwest winds up to
10 mph.
.SATURDAY...Areas of fog and frost in the morning. Sunny. Highs
61 to 66. Northwest winds up to 10 mph in the morning, becoming
light in the afternoon.
.SATURDAY NIGHT...Increasing clouds. Lows 38 to 44. Northeast
winds up to 10 mph.
.SUNDAY...Partly cloudy. A slight chance of rain showers in the
morning. Chance of rain 20 percent. Highs 61 to 66. Breezy. Light
winds in the morning, becoming west 10 to 20 mph with gusts to
30 mph in the afternoon.
.SUNDAY NIGHT...Mostly clear. Lows 32 to 37. Breezy. Northwest
winds 10 to 20 mph.
.MONDAY...Areas of fog in the morning. Sunny. Highs 56 to 61.
.MONDAY NIGHT...Mostly clear. Lows 31 to 36.
.TUESDAY...Patchy fog in the morning. Mostly sunny. Highs 57 to
62.
.TUESDAY NIGHT...Decreasing clouds. Lows 34 to 39.
.WEDNESDAY...Patchy fog in the morning. Sunny. Highs 60 to 65.
.WEDNESDAY NIGHT AND THURSDAY...Partly cloudy. Lows 34 to 39.
Highs 61 to 66.
.THURSDAY NIGHT...Partly cloudy with a 20 percent chance of rain
showers. Lows 38 to 43.
.FRIDAY...Partly cloudy. A chance of rain showers, mainly in the
afternoon. Chance of rain 30 percent. Highs 62 to 67.

&&
                  TEMPERATURE
Ontario         34  63  38  62

$$
=

IDZ012-180500-
Lower Treasure Valley-
307 PM MDT Fri Oct 17 2025

...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM MDT /8 AM PDT/
SATURDAY...

.TONIGHT...Mostly clear. Patchy fog after midnight. Lows 34 to
39. Northwest winds up to 10 mph.
.SATURDAY...Areas of fog and frost in the morning. Sunny. Highs
60 to 65. Light winds.
.SATURDAY NIGHT...Mostly clear. Lows 40 to 45. Southeast winds up
to 10 mph.
.SUNDAY...Partly cloudy with a 30 percent chance of rain showers.
Highs 61 to 66. Breezy. Southeast winds up to 10 mph in the
morning, increasing to west 10 to 20 mph with gusts to 30 mph in
the afternoon.
.SUNDAY NIGHT...Mostly clear. Lows 32 to 37. Breezy. Northwest
winds 10 to 20 mph. Gusts to 30 mph in the evening.
.MONDAY...Areas of fog in the morning. Sunny. Highs 55 to 60.
.MONDAY NIGHT...Mostly clear. Patchy fog after midnight. Lows
32 to 37.
.TUESDAY...Patchy fog in the morning. Mostly sunny. Highs 57 to
62.
.TUESDAY NIGHT...Partly cloudy. Lows 34 to 39.
.WEDNESDAY...Areas of fog in the morning. Sunny. Highs 60 to 65.
.WEDNESDAY NIGHT AND THURSDAY...Partly cloudy. Lows 35 to 40.
Highs 63 to 68.
.THURSDAY NIGHT...Partly cloudy. A slight chance of rain showers
after midnight. Chance of rain 20 percent. Lows 40 to 45.
.FRIDAY...Partly cloudy. A chance of rain showers, mainly in the
afternoon. Chance of rain 30 percent. Highs 64 to 69.

&&
                  TEMPERATURE
Caldwell        35  63  42  64

$$
=

IDZ014-180500-
Upper Treasure Valley-
307 PM MDT Fri Oct 17 2025

...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM MDT /8 AM PDT/
SATURDAY...

.TONIGHT...Mostly clear. Patchy fog after midnight. Lows 33 to
38. Northwest winds up to 10 mph with gusts to 20 mph.
.SATURDAY...Areas of fog with patchy frost in the morning. Sunny.
Highs 61 to 66. Northwest winds up to 10 mph in the morning,
becoming light in the afternoon.
.SATURDAY NIGHT...Mostly clear. Lows 37 to 46. Southeast winds
10 to 15 mph.
.SUNDAY...Partly cloudy with a 30 percent chance of rain showers.
Highs 62 to 69. Breezy. Southeast winds 10 to 15 mph in the
morning, shifting to northwest 10 to 20 mph with gusts to 30 mph
in the afternoon.
.SUNDAY NIGHT...Mostly clear. Lows 31 to 38. Windy. Northwest
winds 15 to 25 mph in the evening, decreasing to 10 to 15 mph
after midnight. Gusts to 35 mph.
.MONDAY...Areas of fog in the morning. Sunny. Highs 56 to 61.
.MONDAY NIGHT AND TUESDAY...Mostly clear. Lows 31 to 38. Highs
60 to 65.
.TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. Lows 34 to 40.
Highs 61 to 66.
.WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Lows 35 to 42.
Highs 66 to 71.
.THURSDAY NIGHT...Partly cloudy. Lows 40 to 47.
.FRIDAY...Partly cloudy. A slight chance of rain showers in the
afternoon. Chance of rain 20 percent. Highs 67 to 72.

&&
                  TEMPERATURE
Boise           37  63  46  62
Mountain Home   34  64  41  64

$$
=

IDZ016-180500-
Western Magic Valley-
307 PM MDT Fri Oct 17 2025

...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM MDT /8 AM PDT/
SATURDAY...

.TONIGHT...Mostly clear. Lows 35 to 40. West winds 10 to 15 mph
with gusts to 25 mph.
.SATURDAY...Areas of frost in the morning. Sunny. Highs 58 to 63.
West winds 10 to 15 mph. Gusts to 25 mph in the morning.
.SATURDAY NIGHT...Mostly clear. Lows 37 to 42. East winds up to
10 mph.
.SUNDAY...Partly cloudy. A slight chance of rain showers in the
afternoon. Chance of rain 20 percent. Highs 61 to 67. Breezy.
Southeast winds around 10 mph in the morning, shifting to west
10 to 20 mph with gusts to 30 mph in the afternoon.
.SUNDAY NIGHT...Decreasing clouds. Lows 33 to 38. Breezy. West
winds 10 to 20 mph with gusts to 30 mph.
.MONDAY AND MONDAY NIGHT...Mostly clear. Highs 53 to 58. Lows
31 to 36.
.TUESDAY...Sunny. Highs 59 to 64.
.TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. Lows 34 to 39.
Highs 58 to 63.
.WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Lows 34 to 39.
Highs 63 to 68.
.THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows 38 to 43. Highs
65 to 70.

&&
                  TEMPERATURE
Jerome          37  58  40  61
Twin Falls      37  59  40  65

$$
=

IDZ029-180500-
Owyhee Mountains-
307 PM MDT Fri Oct 17 2025

.TONIGHT...Mostly clear. Patchy fog after midnight. Lows 31 to
39.
.SATURDAY...Areas of fog in the morning. Sunny. Highs 56 to 66.
.SATURDAY NIGHT...Mostly clear. Lows 41 to 47.
.SUNDAY...Partly cloudy. A chance of rain showers, mainly in the
afternoon. Chance of rain 30 percent. Highs 57 to 63. Windy. West
winds 25 to 30 mph with gusts to 40 mph in the afternoon.
.SUNDAY NIGHT...Mostly clear. Colder with lows 28 to 36. Windy.
West winds around 25 mph with gusts to 35 mph in the evening.
.MONDAY...Patchy fog in the morning. Sunny. Highs 50 to 58.
.MONDAY NIGHT...Mostly clear. Lows 32 to 37.
.TUESDAY THROUGH THURSDAY NIGHT...Partly cloudy. Highs 56 to 66.
Lows 35 to 45.
.FRIDAY...Partly cloudy. A slight chance of rain showers in the
afternoon. Chance of rain 20 percent. Highs 60 to 67.

$$
=

IDZ015-180500-
Southwest Highlands-
307 PM MDT Fri Oct 17 2025

.TONIGHT...Mostly clear. Lows 31 to 36.
.SATURDAY...Sunny. Highs 61 to 67.
.SATURDAY NIGHT...Mostly clear. Lows 38 to 45. Breezy.
.SUNDAY...Mostly sunny. Highs 64 to 69. Windy. West winds around
25 mph with gusts to 40 mph in the afternoon.
.SUNDAY NIGHT...Decreasing clouds. Colder with lows 28 to 33.
Windy. Northwest winds around 25 mph with gusts to 35 mph in the
evening.
.MONDAY...Patchy fog in the morning. Sunny. Highs 55 to 60.
.MONDAY NIGHT...Mostly clear. Lows 31 to 36.
.TUESDAY THROUGH WEDNESDAY NIGHT...Partly cloudy. Highs 60 to 67.
Lows 34 to 40.
.THURSDAY...Sunny. Highs 63 to 69.
.THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows 38 to 43. Highs
63 to 70.

$$
=

IDZ030-180500-
Southern Twin  Falls County-
307 PM MDT Fri Oct 17 2025

.TONIGHT...Mostly clear. Lows 34 to 39.
.SATURDAY...Patchy fog in the morning. Sunny. Highs 58 to 63.
.SATURDAY NIGHT...Mostly clear. Lows 39 to 45.
.SUNDAY...Mostly sunny. Highs 65 to 70. Temperature falling into
the upper 50s in the afternoon. Breezy.
.SUNDAY NIGHT...Partly cloudy in the evening, then clearing. Lows
31 to 36. Breezy.
.MONDAY AND MONDAY NIGHT...Mostly clear. Cooler. Highs 53 to 58.
Lows 32 to 37.
.TUESDAY...Sunny. Highs 61 to 66.
.TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. Lows 35 to 40.
Highs 58 to 63.
.WEDNESDAY NIGHT AND THURSDAY...Mostly clear. Lows 35 to 40.
Highs 63 to 68.
.THURSDAY NIGHT AND FRIDAY...Partly cloudy. Lows 39 to 44. Highs
63 to 68.

$$
=

ORZ062-180500-
Baker County-
207 PM PDT Fri Oct 17 2025

.TONIGHT...Mostly clear. Areas of fog after midnight. Lows 24 to
35. Northwest winds 10 to 15 mph with gusts to 25 mph.
.SATURDAY...Areas of fog in the morning. Sunny. Highs 57 to 63.
South winds up to 10 mph. Gusts to 20 mph in the afternoon.
.SATURDAY NIGHT...Partly cloudy in the evening, then mostly
cloudy with a chance of rain showers after midnight. Chance of
rain 30 percent. Lows 35 to 44. Southeast winds up to 10 mph with
gusts to 20 mph.
.SUNDAY...Areas of fog in the morning. Rain showers in the
morning, then partly cloudy with a slight chance of rain showers
in the afternoon. Chance of rain 80 percent. Highs 54 to 61.
Breezy. South winds up to 10 mph in the morning, increasing to
west 10 to 20 mph with gusts to 30 mph in the afternoon.
.SUNDAY NIGHT...Partly cloudy. A slight chance of rain showers in
the evening. Areas of fog after midnight. Chance of rain
20 percent. Lows 25 to 35. Breezy. West 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.
.MONDAY...Areas of fog in the morning. Sunny. Highs 52 to 58.
.MONDAY NIGHT...Mostly clear. Lows 26 to 37.
.TUESDAY THROUGH WEDNESDAY...Areas of fog in the morning. Areas
of fog through the day. Partly cloudy. Highs 55 to 64. Lows 27 to
37.
.WEDNESDAY NIGHT...Partly cloudy. Lows 31 to 40.
.THURSDAY...Patchy fog in the morning. Partly cloudy with a
20 percent chance of rain showers. Highs 58 to 65.
.THURSDAY 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 35 to 44.
.FRIDAY...Areas of fog in the morning. Partly cloudy with a
30 percent chance of rain showers. Highs 57 to 64.

&&
                  TEMPERATURE
Baker City      24  62  35  58

$$
=

ORZ061-180500-
Harney County-
207 PM PDT Fri Oct 17 2025

.TONIGHT...Mostly clear. Areas of fog after midnight. Lows 22 to
35. Northwest winds 10 to 15 mph. Gusts to 25 mph this evening.
.SATURDAY...Areas of fog in the morning. Sunny. Highs 60 to 68.
South winds up to 10 mph.
.SATURDAY NIGHT...Mostly clear. Not as cool with lows 31 to 44.
South winds 10 to 15 mph.
.SUNDAY...Mostly sunny. Highs 54 to 63. Windy. Southwest winds
10 to 15 mph with gusts to 25 mph in the morning, becoming west
15 to 25 mph with gusts to 35 mph in the afternoon.
.SUNDAY NIGHT...Mostly clear. Areas of fog after midnight. Colder
with lows 20 to 30. Windy. Northwest winds 15 to 25 mph with
gusts to 35 mph in the evening, becoming west around 10 mph after
midnight.
.MONDAY...Areas of fog in the morning. Sunny. Highs 53 to 60.
.MONDAY NIGHT...Mostly clear. Lows 22 to 35.
.TUESDAY...Mostly sunny. Highs 57 to 65.
.TUESDAY NIGHT...Decreasing clouds. Lows 26 to 37.
.WEDNESDAY...Patchy fog in the morning. Mostly sunny. Highs 59 to
66.
.WEDNESDAY NIGHT AND THURSDAY...Partly cloudy. Lows 28 to 40.
Highs 62 to 69.
.THURSDAY NIGHT...Partly cloudy in the evening, then mostly
cloudy with a slight chance of rain showers after midnight.
Chance of rain 20 percent. Lows 31 to 43.
.FRIDAY...Decreasing clouds. A 30 percent chance of rain showers.
Highs 58 to 65. Breezy.

&&
                  TEMPERATURE
Burns           22  63  31  60

$$
=

ORZ063-180500-
Malheur County-
307 PM MDT Fri Oct 17 2025 /207 PM PDT Fri Oct 17 2025/

.TONIGHT...Mostly clear. Patchy fog after midnight. Lows 29 to
37. Northwest winds 10 to 15 mph.
.SATURDAY...Areas of fog in the morning. Sunny. Highs 59 to 68.
South winds up to 10 mph.
.SATURDAY NIGHT...Mostly clear. Lows 37 to 44. South winds 10 to
15 mph.
.SUNDAY...Partly cloudy. A slight chance of rain showers in the
morning. Chance of rain 20 percent. Highs 59 to 67. Windy.
Southwest winds 10 to 15 mph in the morning, becoming west 15 to
25 mph with gusts to 35 mph in the afternoon.
.SUNDAY NIGHT...Mostly clear. Colder with lows 27 to 35. Windy.
Northwest winds 15 to 25 mph in the evening, becoming west 10 to
15 mph after midnight.
.MONDAY...Areas of fog in the morning. Sunny. Highs 54 to 60.
.MONDAY NIGHT...Mostly clear. Lows 28 to 35.
.TUESDAY THROUGH THURSDAY NIGHT...Partly cloudy. Highs 60 to 70.
Lows 32 to 42.
.FRIDAY...Partly cloudy. A chance of rain showers, mainly in the
afternoon. Chance of rain 30 percent. Highs 60 to 68.

$$
=