Zone Forecast Product
Issued by NWS Boise, ID
Issued by NWS Boise, ID
487
FPUS55 KBOI 160831
ZFPBOI
Zone Forecasts for Southwest Idaho/Southeast Oregon
National Weather Service Boise ID
230 AM MDT Wed Sep 16 2026
Spot temperatures are for today, tonight, and Thursday.
IDZ011-161600-
West Central Mountains-
230 AM MDT Wed Sep 16 2026
.TODAY...Patchy fog this morning. Sunny, warmer with highs 69 to
83.
.TONIGHT...Mostly clear. Lows 42 to 52.
.THURSDAY...Patchy fog in the morning. Partly cloudy with a
chance of rain showers in the morning, then rain showers with a
chance of thunderstorms in the afternoon. Thunderstorms may
produce gusty winds and small hail in the afternoon. Chance of
rain 80 percent. Highs 66 to 79.
.THURSDAY NIGHT...Rain showers likely with a chance of
thunderstorms in the evening, then a chance of rain showers after
midnight. Areas of fog after midnight. Thunderstorms may produce
gusty winds and small hail in the evening. Chance of rain
60 percent. Lows 41 to 51.
.FRIDAY...Rain showers likely in the morning, then rain showers
with a slight chance of thunderstorms in the afternoon. Areas of
fog in the morning. Patchy fog in the afternoon. Chance of rain
80 percent. Highs 59 to 72.
.FRIDAY NIGHT...Mostly cloudy with a chance of rain showers with
a slight chance of thunderstorms in the evening, then partly
cloudy with a slight chance of rain showers after midnight. Areas
of fog after midnight. Chance of rain 30 percent. Lows 38 to 48.
.SATURDAY THROUGH SUNDAY...Areas of fog in the morning. Areas of
fog through the day. Mostly clear. Highs 63 to 77. Lows 39 to 49.
.SUNDAY NIGHT...Mostly clear. Patchy fog after midnight. Lows
41 to 51.
.MONDAY...Areas of fog in the morning. Sunny. Highs 66 to 79.
.MONDAY NIGHT...Decreasing clouds. Areas of fog after midnight.
Lows 40 to 50.
.TUESDAY...Patchy fog in the morning. Sunny. Highs 63 to 76.
&&
TEMPERATURE
McCall 77 43 73
$$
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IDZ013-161600-
Boise Mountains-
230 AM MDT Wed Sep 16 2026
.TODAY...Sunny. Highs 72 to 86.
.TONIGHT...Mostly clear in the evening, then partly cloudy with a
slight chance of rain showers after midnight. Chance of rain
20 percent. Lows 39 to 54.
.THURSDAY...Areas of fog in the morning. Partly cloudy with a
chance of rain showers in the morning, then rain showers with a
chance of thunderstorms in the afternoon. Thunderstorms may
produce gusty winds and small hail in the afternoon. Chance of
rain 80 percent. Highs 68 to 82.
.THURSDAY NIGHT...Partly cloudy. A chance of rain showers and
thunderstorms in the evening, then a slight chance of rain
showers after midnight. Patchy fog after midnight. Thunderstorms
may produce gusty winds and small hail in the evening. Chance of
rain 30 percent. Lows 36 to 51.
.FRIDAY...Areas of fog in the morning. A chance of rain showers
in the morning, then rain showers likely with a slight chance of
thunderstorms in the afternoon. Chance of rain 60 percent. Highs
61 to 75.
.FRIDAY NIGHT...Partly cloudy. A chance of rain showers with a
slight chance of thunderstorms in the evening. Areas of fog after
midnight. Chance of rain 30 percent. Lows 33 to 48.
.SATURDAY THROUGH SUNDAY...Areas of fog in the morning. Areas of
fog through the day. Mostly clear. Highs 66 to 80. Lows 34 to 49.
.SUNDAY NIGHT AND MONDAY...Mostly clear. Lows 36 to 51. Highs
68 to 82.
.MONDAY NIGHT...Decreasing clouds. Lows 35 to 50.
.TUESDAY...Sunny. Highs 66 to 81.
&&
TEMPERATURE
Idaho City 86 46 81
$$
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IDZ028-161600-
Camas Prairie-
230 AM MDT Wed Sep 16 2026
.TODAY...Sunny. Highs 78 to 83. East winds 10 to 15 mph with
gusts to 25 mph.
.TONIGHT...Increasing clouds. A chance of showers after midnight.
Chance of rain 30 percent. Not as cool with lows 47 to 52. East
winds 10 to 15 mph with gusts to 25 mph.
.THURSDAY...Partly cloudy with a chance of showers in the
morning, then showers with a chance of thunderstorms in the
afternoon. Thunderstorms may produce gusty winds and small hail
in the afternoon. Chance of rain 80 percent. Highs 74 to 79.
Southeast winds 10 to 15 mph with gusts to 30 mph.
.THURSDAY NIGHT...Decreasing clouds. A chance of rain showers
after midnight. Patchy fog after midnight. Chance of rain
30 percent. Lows 40 to 45. West winds up to 10 mph. Gusts to
20 mph in the evening.
.FRIDAY...Patchy fog in the morning. Partly cloudy with a
30 percent chance of rain showers. Highs 67 to 72. Light winds in
the morning, becoming southwest 10 to 15 mph in the afternoon.
.FRIDAY NIGHT...Partly cloudy. Patchy fog after midnight. Lows
34 to 41.
.SATURDAY THROUGH SUNDAY...Areas of fog in the morning. Areas of
fog through the day. Mostly clear. Highs 69 to 76. Lows 36 to 42.
.SUNDAY NIGHT AND MONDAY...Mostly clear. Lows 38 to 44. Highs
73 to 78.
.MONDAY NIGHT...Partly cloudy. Lows 38 to 44.
.TUESDAY...Sunny. Highs 73 to 78.
&&
TEMPERATURE
Fairfield 81 47 77
$$
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IDZ033-161600-
Upper Weiser River-
230 AM MDT Wed Sep 16 2026
.TODAY...Sunny, warmer with highs 79 to 86. Breezy. North winds
10 to 20 mph with gusts to 30 mph.
.TONIGHT...Partly cloudy. A chance of showers after midnight.
Chance of rain 30 percent. Lows 52 to 57. Breezy. North winds
10 to 20 mph with gusts to 30 mph.
.THURSDAY...Increasing clouds. Showers likely in the morning,
then showers with a chance of thunderstorms in the afternoon.
Thunderstorms may produce gusty winds and small hail in the
afternoon. Chance of rain 80 percent. Highs 74 to 81. Northwest
winds 10 to 15 mph in the morning, shifting to southwest in the
afternoon.
.THURSDAY NIGHT...A chance of thunderstorms in the evening.
Mostly cloudy with a chance of showers. Thunderstorms may produce
gusty winds and small hail in the evening. Chance of rain
40 percent. Lows 50 to 55. Light winds.
.FRIDAY...Decreasing clouds. Showers likely. A slight chance of
thunderstorms in the afternoon. Chance of rain 60 percent. Highs
69 to 76. Light winds in the morning, becoming west up to 10 mph
in the afternoon.
.FRIDAY NIGHT...Partly cloudy with a chance of showers with a
slight chance of thunderstorms in the evening, then mostly clear
after midnight. Chance of rain 30 percent. Lows 47 to 52.
.SATURDAY THROUGH TUESDAY...Mostly clear. Highs 73 to 83. Lows
48 to 54.
&&
TEMPERATURE
Council 85 53 81
Cambridge 86 52 81
$$
=
ORZ064-161600-
Oregon Lower Treasure Valley-
230 AM MDT Wed Sep 16 2026 /130 AM PDT Wed Sep 16 2026/
.TODAY...Sunny. Highs 81 to 86. North winds 10 to 15 mph. Gusts
to 30 mph this morning.
.TONIGHT...Partly cloudy. A chance of showers after midnight.
Chance of rain 30 percent. Lows 52 to 57. Northwest winds 10 to
15 mph with gusts to 25 mph.
.THURSDAY...Partly cloudy with a chance of showers. A chance of
thunderstorms in the afternoon. Thunderstorms may produce gusty
winds and small hail in the afternoon. Chance of rain 30 percent.
Highs 78 to 83. North winds up to 10 mph in the morning, shifting
to south in the afternoon. Gusts to 20 mph.
.THURSDAY NIGHT...A slight chance of thunderstorms in the
evening. Partly cloudy with a slight chance of showers.
Thunderstorms may produce gusty winds and small hail in the
evening. Chance of rain 20 percent. Lows 50 to 55. Southwest
winds up to 10 mph with gusts to 20 mph.
.FRIDAY...Partly cloudy with a chance of showers. A slight chance
of thunderstorms in the afternoon. Chance of rain 30 percent.
Highs 74 to 79. Northwest winds up to 10 mph.
.FRIDAY NIGHT...Mostly clear. Lows 47 to 52.
.SATURDAY...Patchy fog in the morning. Sunny. Highs 77 to 82.
.SATURDAY NIGHT THROUGH TUESDAY...Mostly clear. Lows 47 to 53.
Highs 77 to 84.
&&
TEMPERATURE
Ontario 84 52 81
$$
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IDZ012-161600-
Lower Treasure Valley-
230 AM MDT Wed Sep 16 2026
.TODAY...Sunny. Highs 80 to 86. Northwest winds up to 10 mph.
Gusts to 20 mph this morning.
.TONIGHT...Mostly clear. Lows 51 to 56. Northwest winds up to
10 mph with gusts to 20 mph.
.THURSDAY...Areas of fog in the morning. Partly cloudy with a
chance of showers. A chance of thunderstorms in the afternoon.
Thunderstorms may produce gusty winds and small hail in the
afternoon. Chance of rain 30 percent. Highs 78 to 83. South winds
up to 10 mph. Gusts to 20 mph in the afternoon.
.THURSDAY NIGHT...Mostly clear in the evening, then partly cloudy
with a slight chance of showers after midnight. Chance of rain
20 percent. Lows 49 to 54. Southwest winds 10 to 15 mph.
.FRIDAY...Partly cloudy with a chance of showers. A slight chance
of thunderstorms in the afternoon. Chance of rain 40 percent.
Highs 73 to 78. West winds up to 10 mph.
.FRIDAY NIGHT...Partly cloudy with a slight chance of showers and
thunderstorms in the evening, then mostly clear after midnight.
Areas of fog after midnight. Chance of rain 20 percent. Lows
47 to 52.
.SATURDAY...Areas of fog in the morning. Sunny. Highs 76 to 81.
.SATURDAY NIGHT AND SUNDAY...Mostly clear. Patchy fog through the
day. Lows 48 to 53. Highs 78 to 83.
.SUNDAY NIGHT THROUGH TUESDAY...Mostly clear. Lows 48 to 53.
Highs 77 to 84.
&&
TEMPERATURE
Caldwell 83 52 82
$$
=
IDZ014-161600-
Upper Treasure Valley-
230 AM MDT Wed Sep 16 2026
.TODAY...Sunny. Highs 80 to 86. Southeast winds up to 10 mph this
morning, becoming light this afternoon.
.TONIGHT...Increasing clouds. Lows 51 to 57. Northwest winds up
to 10 mph in the evening, shifting to southeast after midnight.
.THURSDAY...Mostly sunny. Patchy fog in the morning. A chance of
showers and thunderstorms in the afternoon. Thunderstorms may
produce gusty winds and small hail in the afternoon. Chance of
rain 30 percent. Highs 81 to 86. South winds 10 to 15 mph with
gusts to 25 mph.
.THURSDAY NIGHT...Mostly clear in the evening, then partly cloudy
with a slight chance of showers after midnight. Chance of rain
20 percent. Lows 49 to 55. West winds 10 to 15 mph. Gusts to
25 mph in the evening.
.FRIDAY...Partly cloudy with a chance of showers. A slight chance
of thunderstorms in the afternoon. Chance of rain 30 percent.
Highs 73 to 78. Northwest winds 10 to 15 mph.
.FRIDAY NIGHT...Partly cloudy with a slight chance of rain
showers in the evening, then mostly clear after midnight. Areas
of fog after midnight. Chance of rain 20 percent. Lows 46 to 52.
.SATURDAY...Areas of fog in the morning. Sunny. Highs 76 to 81.
.SATURDAY NIGHT...Clear. Patchy fog after midnight. Lows 46 to
52.
.SUNDAY...Patchy fog in the morning. Sunny. Highs 78 to 83.
.SUNDAY NIGHT AND MONDAY...Mostly clear. Lows 47 to 54. Highs
80 to 85.
.MONDAY NIGHT...Decreasing clouds. Lows 47 to 53.
.TUESDAY...Sunny. Highs 78 to 83.
&&
TEMPERATURE
Boise 83 57 82
Mountain Home 84 53 84
$$
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IDZ016-161600-
Western Magic Valley-
230 AM MDT Wed Sep 16 2026
.TODAY...Sunny. Highs 82 to 87. East winds up to 10 mph with
gusts to 20 mph.
.TONIGHT...Partly cloudy. Warmer with lows 54 to 59. East winds
10 to 15 mph with gusts to 25 mph.
.THURSDAY...Showers likely with a chance of thunderstorms in the
afternoon. Thunderstorms may produce gusty winds and small hail
in the afternoon. Chance of rain 60 percent. Highs 80 to 85.
South winds 10 to 15 mph with gusts to 25 mph.
.THURSDAY NIGHT...A slight chance of thunderstorms in the
evening. Partly cloudy with a slight chance of showers.
Thunderstorms may produce gusty winds and small hail in the
evening. Chance of rain 20 percent. Lows 48 to 53. West winds up
to 10 mph. Gusts to 25 mph in the evening.
.FRIDAY...Partly cloudy with a 20 percent chance of showers.
Highs 72 to 77. West winds 10 to 15 mph.
.FRIDAY NIGHT...Partly cloudy. Lows 44 to 49.
.SATURDAY THROUGH SUNDAY...Patchy fog in the morning. Patchy fog
through the day. Mostly clear. Highs 72 to 80. Lows 44 to 49.
.SUNDAY NIGHT AND MONDAY...Mostly clear. Lows 45 to 50. Highs
77 to 82.
.MONDAY NIGHT...Partly cloudy. Lows 46 to 51.
.TUESDAY...Sunny. Highs 76 to 81.
&&
TEMPERATURE
Jerome 84 57 82
Twin Falls 83 56 82
$$
=
IDZ029-161600-
Owyhee Mountains-
230 AM MDT Wed Sep 16 2026
.TODAY...Sunny. Highs 72 to 80.
.TONIGHT...Mostly clear. Lows 49 to 54.
.THURSDAY...Sunny. Highs 71 to 76.
.THURSDAY NIGHT...Increasing clouds. Lows 45 to 53.
.FRIDAY...Partly cloudy. A slight chance of rain showers in the
morning, then a chance of rain showers with a slight chance of
thunderstorms in the afternoon. Chance of rain 50 percent. Highs
67 to 72.
.FRIDAY NIGHT...Partly cloudy with a slight chance of rain
showers and thunderstorms in the evening, then mostly clear after
midnight. Patchy fog after midnight. Chance of rain 20 percent.
Lows 43 to 51.
.SATURDAY...Patchy fog in the morning. Sunny. Highs 70 to 75.
.SATURDAY NIGHT THROUGH SUNDAY NIGHT...Mostly clear. Lows 44 to
54. Highs 72 to 78.
.MONDAY AND MONDAY NIGHT...Partly cloudy. Highs 73 to 79. Lows
45 to 54.
.TUESDAY...Sunny. Highs 71 to 77.
$$
=
IDZ015-161600-
Southwest Highlands-
230 AM MDT Wed Sep 16 2026
.TODAY...Sunny. Highs 76 to 82.
.TONIGHT...Partly cloudy. Lows 49 to 54. Breezy.
.THURSDAY...Sunny. Highs 75 to 82. Breezy.
.THURSDAY NIGHT...Increasing clouds. Lows 43 to 50.
.FRIDAY...Partly cloudy with a 30 percent chance of rain showers.
Highs 69 to 74.
.FRIDAY NIGHT...Partly cloudy with a slight chance of rain
showers in the evening, then mostly clear after midnight. Chance
of rain 20 percent. Lows 40 to 47.
.SATURDAY THROUGH SUNDAY...Mostly clear. Highs 72 to 79. Lows
42 to 48.
.SUNDAY NIGHT THROUGH MONDAY NIGHT...Partly cloudy. Lows 45 to
50. Highs 76 to 81.
.TUESDAY...Sunny. Highs 74 to 79.
$$
=
IDZ030-161600-
Southern Twin Falls County-
230 AM MDT Wed Sep 16 2026
.TODAY...Sunny. Highs 80 to 85.
.TONIGHT...Partly cloudy. Lows 54 to 59.
.THURSDAY...Partly cloudy. A chance of showers and thunderstorms
in the afternoon. Thunderstorms may produce gusty winds and small
hail in the afternoon. Chance of rain 30 percent. Highs 79 to 84.
Breezy.
.THURSDAY NIGHT...Partly cloudy. A slight chance of rain showers
and thunderstorms in the evening. Thunderstorms may produce gusty
winds and small hail in the evening. Chance of rain 20 percent.
Lows 47 to 52.
.FRIDAY...Partly cloudy. A chance of rain showers, mainly in the
afternoon. Chance of rain 30 percent. Cooler with highs 70 to 75.
.FRIDAY NIGHT...Partly cloudy. Lows 42 to 47.
.SATURDAY THROUGH SUNDAY NIGHT...Mostly clear. Highs 71 to 79.
Lows 43 to 49.
.MONDAY AND MONDAY NIGHT...Partly cloudy. Highs 76 to 81. Lows
45 to 50.
.TUESDAY...Sunny. Highs 75 to 80.
$$
=
ORZ062-161600-
Baker County-
130 AM PDT Wed Sep 16 2026
.TODAY...Patchy fog this morning. Sunny. Highs 73 to 82.
Northwest winds 10 to 15 mph with gusts to 25 mph.
.TONIGHT...Partly cloudy. A chance of rain showers after
midnight. Chance of rain 30 percent. Lows 40 to 52. Northwest
winds 10 to 15 mph with gusts to 25 mph.
.THURSDAY...Increasing clouds. Areas of fog in the morning. Rain
showers likely in the morning, then rain showers with a chance of
thunderstorms in the afternoon. Thunderstorms may produce gusty
winds and small hail in the afternoon. Chance of rain 80 percent.
Highs 71 to 79. Northwest winds up to 10 mph in the morning,
shifting to east in the afternoon.
.THURSDAY NIGHT...Rain showers likely with a chance of
thunderstorms in the evening, then a chance of rain showers after
midnight. Areas of fog. Thunderstorms may produce gusty winds and
small hail in the evening. Chance of rain 70 percent. Lows 40 to
53. West winds up to 10 mph.
.FRIDAY...Areas of fog in the morning. Partly cloudy with a
chance of rain showers. A slight chance of thunderstorms in the
afternoon. Chance of rain 50 percent. Highs 69 to 76. Northwest
winds up to 10 mph.
.FRIDAY NIGHT AND SATURDAY...Mostly clear. Areas of fog through
the day. Lows 38 to 50. Highs 73 to 79.
.SATURDAY NIGHT THROUGH TUESDAY...Mostly clear. Lows 39 to 52.
Highs 72 to 82.
&&
TEMPERATURE
Baker City 77 40 74
$$
=
ORZ061-161600-
Harney County-
130 AM PDT Wed Sep 16 2026
.TODAY...Sunny. Highs 70 to 78. Northeast winds 10 to 15 mph.
.TONIGHT...Increasing clouds. Lows 39 to 49. North winds 10 to
15 mph.
.THURSDAY...Mostly cloudy in the morning, then becoming partly
sunny. Patchy fog in the morning. A chance of rain showers. A
chance of thunderstorms in the afternoon. Thunderstorms may
produce gusty winds and small hail in the afternoon. Chance of
rain 30 percent. Highs 65 to 72. West winds up to 10 mph with
gusts to 20 mph.
.THURSDAY NIGHT...A chance of thunderstorms in the evening.
Mostly cloudy with a chance of rain showers. Patchy fog in the
evening. Areas of fog after midnight. Thunderstorms may produce
gusty winds and small hail in the evening. Chance of rain
50 percent. Lows 36 to 47. West winds 10 to 15 mph.
.FRIDAY...Mostly sunny. Areas of fog in the morning. A chance of
rain showers, mainly in the afternoon. Chance of rain 30 percent.
Highs 66 to 72. West winds up to 10 mph.
.FRIDAY NIGHT...Mostly clear. Areas of fog after midnight. Lows
35 to 47.
.SATURDAY...Patchy fog in the morning. Sunny. Highs 70 to 77.
.SATURDAY NIGHT THROUGH SUNDAY NIGHT...Mostly clear. Lows 37 to
50. Highs 72 to 79.
.MONDAY...Mostly sunny. Highs 72 to 80.
.MONDAY NIGHT AND TUESDAY...Mostly clear. Lows 37 to 49. Highs
70 to 78.
&&
TEMPERATURE
Burns 77 39 70
$$
=
ORZ063-161600-
Malheur County-
230 AM MDT Wed Sep 16 2026 /130 AM PDT Wed Sep 16 2026/
.TODAY...Sunny. Highs 76 to 83. North winds 10 to 15 mph with
gusts to 25 mph.
.TONIGHT...Mostly clear. Lows 45 to 55. North winds 10 to 15 mph.
.THURSDAY...Partly cloudy. A slight chance of rain showers in the
morning, then a chance of rain showers and thunderstorms in the
afternoon. Thunderstorms may produce gusty winds and small hail
in the afternoon. Chance of rain 30 percent. Highs 73 to 79. East
winds up to 10 mph in the morning, shifting to south with gusts
to 25 mph in the afternoon.
.THURSDAY NIGHT...A slight chance of thunderstorms in the
evening. Partly cloudy with a slight chance of rain showers.
Thunderstorms may produce gusty winds and small hail in the
evening. Chance of rain 20 percent. Lows 42 to 52. Southwest
winds 10 to 15 mph. Gusts to 25 mph in the evening.
.FRIDAY...Mostly sunny. Patchy fog in the morning. A slight
chance of rain showers in the morning, then a chance of rain
showers with a slight chance of thunderstorms in the afternoon.
Chance of rain 30 percent. Highs 70 to 76. West winds up to
10 mph.
.FRIDAY NIGHT AND SATURDAY...Mostly clear. Patchy fog through the
day. Lows 41 to 51. Highs 74 to 80.
.SATURDAY NIGHT THROUGH SUNDAY NIGHT...Mostly clear. Lows 43 to
53. Highs 76 to 81.
.MONDAY AND MONDAY NIGHT...Partly cloudy. Highs 77 to 82. Lows
43 to 53.
.TUESDAY...Sunny. Highs 75 to 81.
$$
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