Zone Forecast Product
Issued by NWS Boise, ID
Issued by NWS Boise, ID
851
FPUS55 KBOI 151354
ZFPBOI
Zone Forecasts for Southwest Idaho/Southeast Oregon
National Weather Service Boise ID
753 AM MDT Tue Sep 15 2026
Forecast Updated.
Spot temperatures are for the rest of today, tonight, and
Wednesday.
IDZ011-152100-
West Central Mountains-
753 AM MDT Tue Sep 15 2026
.REST OF TODAY...Areas of fog this morning. Sunny. Highs 58 to
70.
.TONIGHT...Decreasing clouds. Patchy fog after midnight. Lows
37 to 47.
.WEDNESDAY...Patchy fog in the morning. Sunny. Highs 67 to 80.
.WEDNESDAY NIGHT...Mostly clear in the evening, then partly
cloudy with a chance of rain showers after midnight. Patchy fog
after midnight. Chance of rain 30 percent. Lows 41 to 51.
.THURSDAY...Patchy fog in the morning. Rain showers likely with a
slight chance of thunderstorms in the morning, then rain showers
with a chance of thunderstorms in the afternoon. Thunderstorms
may produce heavy rainfall, gusty winds, and small hail in the
afternoon. Chance of rain 80 percent. Highs 61 to 74.
.THURSDAY NIGHT...Rain showers with a chance of thunderstorms in
the evening, then a chance of rain showers after midnight. Areas
of fog. Thunderstorms may produce heavy rainfall, gusty winds,
and small hail in the evening. Chance of rain 80 percent. Lows
39 to 49.
.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 61 to 73.
.FRIDAY NIGHT...Partly cloudy. A slight chance of rain showers in
the evening. Areas of fog after midnight. Chance of rain
20 percent. Lows 37 to 47.
.SATURDAY THROUGH SUNDAY...Areas of fog in the morning. Areas of
fog through the day. Mostly clear. Highs 64 to 78. Lows 39 to 49.
.SUNDAY NIGHT AND MONDAY...Mostly clear. Lows 41 to 51. Highs
66 to 79.
&&
TEMPERATURE
McCall 65 37 74
$$
=
IDZ013-152100-
Boise Mountains-
753 AM MDT Tue Sep 15 2026
.REST OF TODAY...Areas of fog this morning. Sunny. Highs 63 to
77.
.TONIGHT...Partly cloudy. Lows 34 to 49.
.WEDNESDAY...Sunny. Highs 69 to 84.
.WEDNESDAY NIGHT...Mostly clear in the evening, then mostly
cloudy with a chance of rain showers after midnight. Chance of
rain 40 percent. Lows 38 to 53.
.THURSDAY...Patchy fog in the morning. Rain showers likely with a
slight chance of thunderstorms in the morning, then rain showers
with a chance of thunderstorms in the afternoon. Thunderstorms
may produce heavy rainfall, gusty winds, and small hail in the
afternoon. Chance of rain 80 percent. Highs 62 to 76. Breezy.
Gusts to 35 mph.
.THURSDAY NIGHT...Rain showers likely with a chance of
thunderstorms in the evening, then partly cloudy with a slight
chance of rain showers after midnight. Areas of fog after
midnight. Thunderstorms may produce heavy rainfall, gusty winds,
and small hail in the evening. Chance of rain 60 percent. Lows
36 to 51.
.FRIDAY...Mostly sunny. Areas of fog in the morning. A chance of
rain showers, mainly in the afternoon. Chance of rain 30 percent.
Highs 62 to 76.
.FRIDAY NIGHT AND SATURDAY...Mostly clear. Areas of fog through
the day. Lows 33 to 48. Highs 66 to 79.
.SATURDAY NIGHT THROUGH MONDAY...Mostly clear. Lows 36 to 51.
Highs 69 to 83.
&&
TEMPERATURE
Idaho City 75 40 82
$$
=
IDZ028-152100-
Camas Prairie-
753 AM MDT Tue Sep 15 2026
.REST OF TODAY...Sunny. Highs 69 to 74. Southeast winds up to
10 mph.
.TONIGHT...Mostly clear. Lows 36 to 42. Northwest winds up to
10 mph.
.WEDNESDAY...Sunny. Highs 76 to 81. East winds 10 to 15 mph with
gusts to 25 mph.
.WEDNESDAY NIGHT...Partly cloudy in the evening, then rain
showers likely after midnight. Chance of rain 60 percent. Lows
43 to 48. East winds 10 to 15 mph with gusts to 30 mph.
.THURSDAY...Partly cloudy with a chance of rain showers with a
slight chance of thunderstorms in the morning, then rain showers
likely with a chance of thunderstorms in the afternoon.
Thunderstorms may produce heavy rainfall, gusty winds, and small
hail in the afternoon. Chance of rain 70 percent. Highs 69 to 74.
Breezy. East winds 10 to 20 mph in the morning, shifting to south
in the afternoon. Gusts to 30 mph.
.THURSDAY NIGHT THROUGH FRIDAY NIGHT...Mostly clear. Patchy fog.
Lows 34 to 42. Highs 68 to 73.
.SATURDAY THROUGH MONDAY...Mostly clear. Highs 70 to 80. Lows
37 to 45.
&&
TEMPERATURE
Fairfield 72 36 78
$$
=
IDZ033-152100-
Upper Weiser River-
753 AM MDT Tue Sep 15 2026
.REST OF TODAY...Sunny. Highs 69 to 74. South winds up to 10 mph.
.TONIGHT...Mostly cloudy. Lows 48 to 53. Breezy. North winds up
to 10 mph in the evening, increasing to 10 to 20 mph with gusts
to 35 mph after midnight.
.WEDNESDAY...Sunny. Highs 77 to 83. Breezy. North winds 10 to
20 mph with gusts to 35 mph.
.WEDNESDAY NIGHT...Mostly clear in the evening, then mostly
cloudy with a chance of showers after midnight. Chance of rain
30 percent. Lows 50 to 55. Breezy. North winds 10 to 20 mph with
gusts to 35 mph.
.THURSDAY...Showers likely. A chance of thunderstorms, mainly in
the afternoon. Thunderstorms may produce heavy rainfall, gusty
winds, and small hail in the afternoon. Chance of rain
60 percent. Highs 69 to 76. North winds 10 to 15 mph with gusts
to 30 mph in the morning, shifting to southwest in the afternoon.
.THURSDAY NIGHT...Decreasing clouds. A chance of thunderstorms in
the evening. A chance of showers. Thunderstorms may produce heavy
rainfall, gusty winds, and small hail in the evening. Chance of
rain 50 percent. Lows 48 to 53.
.FRIDAY...Partly cloudy with a 20 percent chance of showers.
Highs 71 to 77.
.FRIDAY NIGHT THROUGH MONDAY...Mostly clear. Lows 47 to 55. Highs
73 to 82.
&&
TEMPERATURE
Council 73 48 83
Cambridge 74 48 83
$$
=
ORZ064-152100-
Oregon Lower Treasure Valley-
753 AM MDT Tue Sep 15 2026 /653 AM PDT Tue Sep 15 2026/
.REST OF TODAY...Patchy fog this morning. Sunny. Highs 73 to 78.
Light winds.
.TONIGHT...Partly cloudy. Lows 47 to 54. Breezy. North winds up
to 10 mph in the evening, increasing to northwest 10 to 20 mph
with gusts to 30 mph after midnight.
.WEDNESDAY...Sunny. Highs 79 to 84. Breezy. North winds 10 to
20 mph with gusts to 30 mph.
.WEDNESDAY NIGHT...Mostly clear in the evening, then partly
cloudy with a chance of showers after midnight. Chance of rain
30 percent. Lows 49 to 55. Breezy. Northwest winds 10 to 20 mph
with gusts to 30 mph.
.THURSDAY...Partly cloudy with a chance of showers. A chance of
thunderstorms, mainly in the afternoon. Thunderstorms may produce
heavy rainfall, gusty winds, and small hail in the afternoon.
Chance of rain 50 percent. Highs 74 to 79. North winds 10 to
15 mph in the morning, shifting to southwest in the afternoon.
Gusts to 25 mph.
.THURSDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms in the evening, then partly cloudy with a slight
chance of showers after midnight. Areas of fog after midnight.
Thunderstorms may produce heavy rainfall, gusty winds, and small
hail in the evening. Chance of rain 30 percent. Lows 46 to 53.
.FRIDAY THROUGH SATURDAY...Areas of fog in the morning. Areas of
fog through the day. Mostly clear. Highs 75 to 81. Lows 45 to 52.
.SATURDAY NIGHT THROUGH MONDAY...Mostly clear. Lows 45 to 54.
Highs 79 to 84.
&&
TEMPERATURE
Ontario 76 47 82
$$
=
IDZ012-152100-
Lower Treasure Valley-
753 AM MDT Tue Sep 15 2026
.REST OF TODAY...Patchy fog this morning. Sunny. Highs 73 to 78.
Southeast winds up to 10 mph.
.TONIGHT...Decreasing clouds. Lows 47 to 52. Light winds in the
evening, becoming northwest 10 to 15 mph after midnight.
.WEDNESDAY...Patchy fog in the morning. Sunny. Highs 77 to 83.
Northwest winds 10 to 15 mph.
.WEDNESDAY NIGHT...Mostly clear in the evening, then mostly
cloudy with a chance of showers after midnight. Patchy fog after
midnight. Chance of rain 30 percent. Lows 50 to 55. Northwest
winds 10 to 15 mph.
.THURSDAY...Areas of fog in the morning. Showers likely with a
slight chance of thunderstorms in the morning, then a chance of
showers and thunderstorms in the afternoon. Thunderstorms may
produce heavy rainfall, gusty winds, and small hail in the
afternoon. Chance of rain 60 percent. Highs 73 to 78. Northwest
winds up to 10 mph in the morning, shifting to southwest in the
afternoon.
.THURSDAY NIGHT...Partly cloudy. A chance of showers and
thunderstorms in the evening. Areas of fog after midnight.
Thunderstorms may produce heavy rainfall, gusty winds, and small
hail in the evening. Chance of rain 30 percent. Lows 47 to 52.
.FRIDAY THROUGH SATURDAY...Areas of fog in the morning. Areas of
fog through the day. Mostly clear. Highs 74 to 81. Lows 47 to 52.
.SATURDAY NIGHT...Mostly clear. Patchy fog after midnight. Lows
47 to 52.
.SUNDAY THROUGH MONDAY...Mostly clear. Highs 79 to 84. Lows 48 to
53.
&&
TEMPERATURE
Caldwell 77 47 80
$$
=
IDZ014-152100-
Upper Treasure Valley-
753 AM MDT Tue Sep 15 2026
.REST OF TODAY...Areas of fog this morning. Sunny. Highs 74 to
79. Southeast winds up to 10 mph.
.TONIGHT...Decreasing clouds. Lows 44 to 49. Northwest winds up
to 10 mph.
.WEDNESDAY...Sunny. Highs 77 to 82. West winds around 10 mph with
gusts to 20 mph.
.WEDNESDAY NIGHT...Mostly clear in the evening, then partly
cloudy with a chance of showers after midnight. Patchy fog after
midnight. Chance of rain 30 percent. Lows 49 to 55. Northwest
winds around 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, mainly in the
afternoon. Thunderstorms may produce heavy rainfall, gusty winds,
and small hail in the afternoon. Chance of rain 40 percent. Highs
74 to 79. Southeast winds 10 to 15 mph in the morning, shifting
to southwest in the afternoon. Gusts to 25 mph.
.THURSDAY NIGHT...Partly cloudy with a slight chance of showers
and thunderstorms in the evening, then mostly clear after
midnight. Areas of fog after midnight. Thunderstorms may produce
heavy rainfall, gusty winds, and small hail in the evening.
Chance of rain 20 percent. Lows 46 to 52.
.FRIDAY THROUGH SATURDAY...Areas of fog in the morning. Areas of
fog through the day. Mostly clear. Highs 74 to 81. Lows 45 to 51.
.SATURDAY NIGHT...Mostly clear. Patchy fog after midnight. Lows
46 to 52.
.SUNDAY AND SUNDAY NIGHT...Mostly clear. Highs 80 to 85. Lows
48 to 54.
.MONDAY...Mostly sunny. Highs 81 to 86.
&&
TEMPERATURE
Boise 77 49 80
Mountain Home 77 44 80
$$
=
IDZ016-152100-
Western Magic Valley-
753 AM MDT Tue Sep 15 2026
.REST OF TODAY...Patchy fog this morning. Sunny. Highs 74 to 79.
East winds up to 10 mph.
.TONIGHT...Mostly clear. Lows 42 to 47. Northwest winds up to
10 mph in the evening, shifting to south after midnight.
.WEDNESDAY...Sunny. Highs 78 to 83. East winds around 10 mph with
gusts to 20 mph.
.WEDNESDAY NIGHT...Partly cloudy. A chance of showers after
midnight. Chance of rain 30 percent. Lows 50 to 55. East winds
10 to 15 mph with gusts to 30 mph.
.THURSDAY...Partly cloudy with a chance of showers. A chance of
thunderstorms, mainly in the afternoon. Thunderstorms may produce
heavy rainfall, gusty winds, and small hail in the afternoon.
Chance of rain 30 percent. Highs 73 to 78. Southeast winds 10 to
15 mph in the morning, shifting to southwest in the afternoon.
Gusts to 30 mph.
.THURSDAY NIGHT...Partly cloudy. A slight chance of rain showers
and thunderstorms in the evening. Thunderstorms may produce heavy
rainfall, gusty winds, and small hail in the evening. Chance of
rain 20 percent. Lows 45 to 50.
.FRIDAY...Patchy fog in the morning. Sunny. Highs 71 to 76.
.FRIDAY NIGHT AND SATURDAY...Mostly clear. Areas of fog through
the day. Lows 43 to 48. Highs 74 to 79.
.SATURDAY NIGHT THROUGH SUNDAY NIGHT...Mostly clear. Lows 44 to
52. Highs 78 to 83.
.MONDAY...Mostly sunny. Highs 79 to 84.
&&
TEMPERATURE
Jerome 75 45 80
Twin Falls 75 45 79
$$
=
IDZ029-152100-
Owyhee Mountains-
753 AM MDT Tue Sep 15 2026
.REST OF TODAY...Sunny. Highs 67 to 74.
.TONIGHT...Partly cloudy in the evening, then clearing. Lows
44 to 51.
.WEDNESDAY...Sunny. Highs 69 to 76.
.WEDNESDAY NIGHT...Mostly clear in the evening, then partly
cloudy with a chance of rain showers after midnight. Chance of
rain 30 percent. Lows 47 to 54.
.THURSDAY...Partly cloudy with a chance of rain showers. A chance
of thunderstorms, mainly in the afternoon. Thunderstorms may
produce heavy rainfall, gusty winds, and small hail in the
afternoon. Chance of rain 40 percent. Highs 67 to 72. Breezy.
.THURSDAY NIGHT...Decreasing clouds. Lows 44 to 51.
.FRIDAY...Partly cloudy. A slight chance of rain showers in the
afternoon. Chance of rain 20 percent. Highs 68 to 73.
.FRIDAY NIGHT THROUGH SATURDAY NIGHT...Mostly clear. Lows 43 to
52. Highs 69 to 76.
.SUNDAY THROUGH MONDAY...Partly cloudy. Highs 72 to 80. Lows
48 to 54.
$$
=
IDZ015-152100-
Southwest Highlands-
753 AM MDT Tue Sep 15 2026
.REST OF TODAY...Sunny. Highs 72 to 77.
.TONIGHT...Mostly clear. Lows 42 to 47.
.WEDNESDAY...Sunny. Highs 73 to 78.
.WEDNESDAY NIGHT...Partly cloudy. A slight chance of showers
after midnight. Chance of rain 20 percent. Lows 46 to 51. Breezy.
.THURSDAY...Partly cloudy. A slight chance of showers and
thunderstorms in the morning. Chance of rain 20 percent. Highs
70 to 75. Breezy.
.THURSDAY NIGHT THROUGH SATURDAY NIGHT...Mostly clear. Lows 41 to
49. Highs 70 to 78. Breezy.
.SUNDAY THROUGH MONDAY...Partly cloudy. Highs 76 to 82. Lows
47 to 52.
$$
=
IDZ030-152100-
Southern Twin Falls County-
753 AM MDT Tue Sep 15 2026
.REST OF TODAY...Sunny, warmer with highs 74 to 79.
.TONIGHT...Mostly clear. Lows 42 to 47.
.WEDNESDAY...Sunny. Highs 77 to 82.
.WEDNESDAY NIGHT...Partly cloudy. A slight chance of showers
after midnight. Chance of rain 20 percent. Lows 49 to 54.
.THURSDAY...Partly cloudy with a slight chance of showers. A
slight chance of thunderstorms. Thunderstorms may produce heavy
rainfall, gusty winds, and small hail in the afternoon. Chance of
rain 20 percent. Highs 73 to 78. Breezy.
.THURSDAY NIGHT THROUGH SATURDAY NIGHT...Mostly clear. Lows 42 to
49. Highs 70 to 78.
.SUNDAY...Sunny. Highs 77 to 82.
.SUNDAY NIGHT AND MONDAY...Partly cloudy. Lows 47 to 52. Highs
77 to 82.
$$
=
ORZ062-152100-
Baker County-
653 AM PDT Tue Sep 15 2026
.REST OF TODAY...Areas of fog this morning. Mostly sunny. Highs
66 to 74. Southeast winds up to 10 mph.
.TONIGHT...Mostly cloudy. Areas of fog after midnight. Lows 37 to
51. North winds 10 to 15 mph with gusts to 30 mph.
.WEDNESDAY...Areas of fog in the morning. Sunny. Highs 70 to 80.
Northwest winds 10 to 15 mph with gusts to 30 mph.
.WEDNESDAY NIGHT...Partly cloudy. A slight chance of rain showers
after midnight. Patchy fog after midnight. Chance of rain
20 percent. Lows 37 to 51. Breezy. Northwest winds 10 to 20 mph
with gusts to 30 mph.
.THURSDAY...Areas of fog in the morning. Partly cloudy with a
chance of rain showers with a slight chance of thunderstorms in
the morning, then rain showers likely with a chance of
thunderstorms in the afternoon. Thunderstorms may produce heavy
rainfall, gusty winds, and small hail in the afternoon. Chance of
rain 60 percent. Highs 68 to 76. Northwest winds 10 to 15 mph
with gusts to 25 mph.
.THURSDAY NIGHT...Mostly cloudy with a chance of rain showers and
thunderstorms in the evening, then partly cloudy with a slight
chance of rain showers after midnight. Patchy fog in the evening,
then areas of fog after midnight. Thunderstorms may produce heavy
rainfall, gusty winds, and small hail in the evening. Chance of
rain 50 percent. Lows 37 to 51.
.FRIDAY...Sunny. Areas of fog in the morning. A slight chance of
rain showers in the afternoon. Chance of rain 20 percent. Highs
71 to 78.
.FRIDAY NIGHT AND SATURDAY...Mostly clear. Patchy fog through the
day. Lows 37 to 51. Highs 73 to 80.
.SATURDAY NIGHT THROUGH MONDAY...Mostly clear. Lows 39 to 54.
Highs 75 to 82.
&&
TEMPERATURE
Baker City 70 37 73
$$
=
ORZ061-152100-
Harney County-
653 AM PDT Tue Sep 15 2026
.REST OF TODAY...Mostly sunny. Highs 67 to 75. Light winds.
.TONIGHT...Partly cloudy. Lows 38 to 47. North winds 10 to 15 mph
with gusts to 30 mph.
.WEDNESDAY...Partly cloudy. A slight chance of rain showers and
thunderstorms in the afternoon. Chance of rain 20 percent. Highs
66 to 74. Northeast winds 10 to 15 mph with gusts to 25 mph.
.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 36 to 47. North winds 10 to
15 mph with gusts to 25 mph.
.THURSDAY...Patchy fog in the morning. Partly cloudy with a
chance of rain showers. A chance of thunderstorms, mainly in the
afternoon. Thunderstorms may produce heavy rainfall, gusty winds,
and small hail in the afternoon. Chance of rain 40 percent. Highs
65 to 71. West winds 10 to 15 mph with gusts to 25 mph.
.THURSDAY NIGHT...Partly cloudy with a slight chance of rain
showers and thunderstorms in the evening, then mostly clear after
midnight. Areas of fog after midnight. Thunderstorms may produce
heavy rainfall, gusty winds, and small hail in the evening.
Chance of rain 20 percent. Lows 35 to 46. Breezy.
.FRIDAY...Areas of fog in the morning. Sunny. Highs 69 to 75.
.FRIDAY NIGHT THROUGH SUNDAY...Mostly clear. Lows 36 to 49. Highs
71 to 81.
.SUNDAY NIGHT AND MONDAY...Partly cloudy. Lows 39 to 50. Highs
72 to 80.
&&
TEMPERATURE
Burns 71 38 72
$$
=
ORZ063-152100-
Malheur County-
753 AM MDT Tue Sep 15 2026 /653 AM PDT Tue Sep 15 2026/
.REST OF TODAY...Sunny. Highs 69 to 77. East winds up to 10 mph.
.TONIGHT...Partly cloudy. Lows 42 to 52. North winds 10 to 15 mph
with gusts to 25 mph.
.WEDNESDAY...Sunny. Highs 73 to 79. North winds 10 to 15 mph with
gusts to 30 mph.
.WEDNESDAY NIGHT...Mostly clear in the evening, then partly
cloudy with a chance of rain showers after midnight. Chance of
rain 30 percent. Lows 44 to 53. North winds 10 to 15 mph with
gusts to 30 mph.
.THURSDAY...Partly cloudy with a chance of rain showers. A chance
of thunderstorms, mainly in the afternoon. Thunderstorms may
produce heavy rainfall, gusty winds, and small hail in the
afternoon. Chance of rain 30 percent. Highs 70 to 76. Northwest
winds 10 to 15 mph in the morning, shifting to southwest in the
afternoon. Gusts to 25 mph.
.THURSDAY NIGHT...Partly cloudy. A chance of rain showers and
thunderstorms in the evening. Patchy fog after midnight.
Thunderstorms may produce heavy rainfall, gusty winds, and small
hail in the evening. Chance of rain 30 percent. Lows 42 to 51.
.FRIDAY...Patchy fog in the morning. Sunny. Highs 72 to 78.
.FRIDAY NIGHT THROUGH SATURDAY NIGHT...Mostly clear. Lows 42 to
52. Highs 74 to 79.
.SUNDAY THROUGH MONDAY...Partly cloudy. Highs 77 to 83. Lows
45 to 54.
$$
=