Zone Forecast Product
Issued by NWS Boise, ID
Issued by NWS Boise, ID
863
FPUS55 KBOI 132031
ZFPBOI
Zone Forecasts for Southwest Idaho/Southeast Oregon
National Weather Service Boise ID
230 PM MDT Sun Sep 13 2026
Spot temperatures are for tonight, Monday, Monday night, and
Tuesday.
IDZ011-140400-
West Central Mountains-
230 PM MDT Sun Sep 13 2026
.TONIGHT...Partly cloudy. Isolated thunderstorms with a slight
chance of rain showers this evening. Widespread frost with areas
of fog after midnight. Chance of rain 20 percent. Colder with
lows 31 to 41.
.MONDAY...Widespread frost with areas of fog in the morning.
Mostly sunny. Highs 54 to 66.
.MONDAY NIGHT...Increasing clouds. Areas of fog after midnight.
Lows 33 to 43.
.TUESDAY...Areas of fog in the morning. Mostly sunny. Highs 58 to
71.
.TUESDAY NIGHT...Mostly cloudy. Patchy fog after midnight. Lows
37 to 47.
.WEDNESDAY...Areas of fog in the morning. Sunny. Highs 64 to 77.
.WEDNESDAY NIGHT...Mostly clear. Lows 39 to 49.
.THURSDAY...Mostly sunny. Patchy fog in the morning. A chance of
rain showers with a slight chance of thunderstorms in the
afternoon. Chance of rain 40 percent. Highs 65 to 78.
.THURSDAY NIGHT...Decreasing clouds. A slight chance of
thunderstorms in the evening. A chance of rain showers. Areas of
fog after midnight. Chance of rain 50 percent. Lows 39 to 49.
.FRIDAY...Areas of fog in the morning. Partly cloudy with a
40 percent chance of rain showers. Highs 61 to 74.
.FRIDAY NIGHT THROUGH SUNDAY...Mostly clear. Areas of fog. Lows
39 to 49. Highs 63 to 77.
&&
TEMPERATURE
McCall 32 60 34 66
$$
=
IDZ013-140400-
Boise Mountains-
230 PM MDT Sun Sep 13 2026
.TONIGHT...Mostly clear. Widespread frost with areas of fog after
midnight. Colder with lows 28 to 43.
.MONDAY...Widespread frost with areas of fog in the morning.
Sunny. Highs 56 to 71.
.MONDAY NIGHT...Mostly clear. Patchy fog after midnight. Lows
29 to 44.
.TUESDAY...Areas of fog in the morning. Sunny. Highs 64 to 78.
.TUESDAY NIGHT...Partly cloudy. Lows 33 to 48.
.WEDNESDAY...Sunny. Highs 67 to 82.
.WEDNESDAY NIGHT...Mostly clear in the evening, then partly
cloudy with a slight chance of rain showers after midnight.
Chance of rain 20 percent. Lows 36 to 51.
.THURSDAY...Partly cloudy. A chance of rain showers with a slight
chance of thunderstorms in the afternoon. Chance of rain
30 percent. Highs 66 to 80.
.THURSDAY NIGHT...Partly cloudy. A chance of rain showers with a
slight chance of thunderstorms in the evening. Areas of fog after
midnight. Chance of rain 30 percent. Lows 35 to 50.
.FRIDAY...Areas of fog in the morning. Partly cloudy with a
20 percent chance of rain showers. Highs 63 to 78.
.FRIDAY NIGHT AND SATURDAY...Mostly clear. Patchy fog through the
day. Lows 34 to 49. Highs 65 to 80.
.SATURDAY NIGHT AND SUNDAY...Mostly clear. Lows 35 to 50. Highs
66 to 81.
&&
TEMPERATURE
Idaho City 34 68 35 76
$$
=
IDZ028-140400-
Camas Prairie-
230 PM MDT Sun Sep 13 2026
.TONIGHT...Mostly clear. Much colder with lows 30 to 36. Windy.
West winds 15 to 25 mph. Gusts to 45 mph this evening, decreasing
to 35 mph after midnight.
.MONDAY...Widespread frost in the morning. Sunny. Highs 64 to 69.
West winds 10 to 15 mph with gusts to 25 mph.
.MONDAY NIGHT...Mostly clear. Lows 30 to 36. West winds 10 to
15 mph with gusts to 25 mph in the evening, becoming light after
midnight.
.TUESDAY...Patchy fog in the morning. Sunny. Highs 70 to 75.
Northeast winds up to 10 mph in the morning, becoming light in
the afternoon.
.TUESDAY NIGHT...Mostly clear. Lows 36 to 42. Northwest winds up
to 10 mph.
.WEDNESDAY...Sunny. Highs 74 to 79.
.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 42 to 47.
.THURSDAY...Partly cloudy. A slight chance of rain showers and
thunderstorms in the afternoon. Chance of rain 20 percent. Highs
73 to 78.
.THURSDAY NIGHT...Partly cloudy with a slight chance of rain
showers in the evening, then mostly clear after midnight. Patchy
fog after midnight. Chance of rain 20 percent. Lows 37 to 42.
.FRIDAY AND FRIDAY NIGHT...Mostly clear. Patchy fog in the
morning. Patchy fog after midnight. Highs 69 to 74. Lows 36 to
41.
.SATURDAY THROUGH SUNDAY...Mostly clear. Highs 71 to 78. Lows
38 to 43.
&&
TEMPERATURE
Fairfield 31 68 31 73
$$
=
IDZ033-140400-
Upper Weiser River-
230 PM MDT Sun Sep 13 2026
.TONIGHT...Partly cloudy. Lows 40 to 45. Southwest winds up to
10 mph.
.MONDAY...Areas of fog in the morning. Sunny. Highs 65 to 72.
Light winds.
.MONDAY NIGHT...Mostly clear. Lows 42 to 47. Light winds.
.TUESDAY...Mostly sunny. Highs 71 to 76. Light winds.
.TUESDAY NIGHT...Mostly cloudy. Lows 47 to 52. North winds 10 to
15 mph. Gusts to 25 mph after midnight.
.WEDNESDAY THROUGH THURSDAY...Mostly clear. Highs 75 to 82. Lows
49 to 54. Breezy.
.THURSDAY NIGHT...Increasing clouds. A slight chance of
thunderstorms in the evening. A chance of showers. Chance of rain
30 percent. Lows 49 to 54.
.FRIDAY...Partly cloudy. A slight chance of showers in the
morning. Chance of rain 20 percent. Highs 73 to 79.
.FRIDAY NIGHT THROUGH SUNDAY...Mostly clear. Lows 47 to 54. Highs
75 to 81.
&&
TEMPERATURE
Council 41 70 43 75
Cambridge 41 72 43 76
$$
=
ORZ064-140400-
Oregon Lower Treasure Valley-
230 PM MDT Sun Sep 13 2026 /130 PM PDT Sun Sep 13 2026/
.TONIGHT...Mostly clear. Lows 43 to 48. West winds 10 to 15 mph.
Gusts to 25 mph this evening.
.MONDAY...Areas of fog in the morning. Sunny. Highs 70 to 75.
Light winds.
.MONDAY NIGHT...Mostly clear. Lows 41 to 48. Light winds.
.TUESDAY...Sunny. Highs 75 to 80. Light winds.
.TUESDAY NIGHT...Partly cloudy. Lows 47 to 53. Light winds in the
evening, becoming northwest 10 to 15 mph with gusts to 25 mph
after midnight.
.WEDNESDAY THROUGH THURSDAY...Mostly clear. Highs 78 to 83. Lows
49 to 55.
.THURSDAY NIGHT...Increasing clouds. A 30 percent chance of
showers. Lows 48 to 54.
.FRIDAY...Patchy fog in the morning. Sunny. Highs 77 to 82.
.FRIDAY NIGHT THROUGH SUNDAY...Mostly clear. Lows 46 to 54. Highs
78 to 84.
&&
TEMPERATURE
Ontario 43 73 41 78
$$
=
IDZ012-140400-
Lower Treasure Valley-
230 PM MDT Sun Sep 13 2026
.TONIGHT...Mostly clear. Lows 43 to 48. West winds 10 to 15 mph
with gusts to 25 mph.
.MONDAY...Areas of fog in the morning. Sunny. Highs 69 to 74.
Northwest winds up to 10 mph.
.MONDAY NIGHT...Mostly clear. Lows 42 to 47. Northwest winds up
to 10 mph in the evening, becoming light after midnight.
.TUESDAY...Patchy fog in the morning. Sunny. Highs 75 to 80.
Southeast winds up to 10 mph.
.TUESDAY NIGHT...Partly cloudy. Lows 47 to 52. North winds up to
10 mph. Gusts to 20 mph after midnight.
.WEDNESDAY THROUGH THURSDAY...Mostly clear. Highs 76 to 82. Lows
49 to 54.
.THURSDAY NIGHT...Partly cloudy. A chance of showers, mainly
after midnight. Areas of fog after midnight. Chance of rain
30 percent. Lows 48 to 53.
.FRIDAY...Areas of fog in the morning. Sunny. Highs 76 to 81.
.FRIDAY NIGHT THROUGH SUNDAY...Mostly clear. Lows 47 to 53. Highs
78 to 83.
&&
TEMPERATURE
Caldwell 45 73 43 79
$$
=
IDZ014-140400-
Upper Treasure Valley-
230 PM MDT Sun Sep 13 2026
.TONIGHT...Mostly clear. Patchy fog after midnight. Cooler with
lows 42 to 47. Breezy. Northwest winds 10 to 20 mph with gusts to
40 mph.
.MONDAY...Areas of fog in the morning. Sunny. Highs 68 to 73.
Northwest winds 10 to 15 mph with gusts to 25 mph.
.MONDAY NIGHT...Mostly clear. Lows 40 to 47. Northwest winds
10 to 15 mph with gusts to 25 mph in the evening, becoming light
after midnight.
.TUESDAY...Patchy fog in the morning. Sunny. Highs 76 to 81.
Southeast winds up to 10 mph.
.TUESDAY NIGHT...Increasing clouds. Lows 45 to 51. Northwest
winds up to 10 mph with gusts to 20 mph.
.WEDNESDAY AND WEDNESDAY NIGHT...Mostly clear. Highs 76 to 81.
Lows 48 to 53.
.THURSDAY...Mostly sunny. Highs 77 to 82.
.THURSDAY NIGHT AND FRIDAY...Mostly clear. Areas of fog through
the day. Lows 47 to 53. Highs 76 to 81.
.FRIDAY NIGHT AND SATURDAY...Mostly clear. Patchy fog through the
day. Lows 46 to 52. Highs 78 to 83.
.SATURDAY NIGHT AND SUNDAY...Mostly clear. Lows 48 to 53. Highs
78 to 83.
&&
TEMPERATURE
Boise 47 71 47 78
Mountain Home 43 71 40 79
$$
=
IDZ016-140400-
Western Magic Valley-
230 PM MDT Sun Sep 13 2026
.TONIGHT...Mostly clear. Cooler with lows 40 to 45. Breezy. West
winds 10 to 20 mph with gusts to 35 mph.
.MONDAY...Sunny. Highs 65 to 70. West winds 10 to 15 mph with
gusts to 25 mph.
.MONDAY NIGHT...Mostly clear. Lows 38 to 43. West winds 10 to
15 mph with gusts to 25 mph in the evening, shifting to southeast
after midnight.
.TUESDAY...Patchy fog in the morning. Sunny, warmer with highs
75 to 80. Northeast winds up to 10 mph.
.TUESDAY NIGHT...Mostly clear. Lows 43 to 48. Northwest winds up
to 10 mph in the evening, becoming light after midnight.
.WEDNESDAY...Sunny. Highs 76 to 81.
.WEDNESDAY NIGHT AND THURSDAY...Partly cloudy. Lows 47 to 52.
Highs 75 to 80.
.THURSDAY NIGHT...Partly cloudy with a slight chance of rain
showers in the evening, then mostly clear after midnight. Chance
of rain 20 percent. Lows 45 to 50.
.FRIDAY THROUGH SUNDAY...Mostly clear. Highs 73 to 81. Lows 43 to
51.
&&
TEMPERATURE
Jerome 44 66 40 75
Twin Falls 43 66 40 76
$$
=
IDZ029-140400-
Owyhee Mountains-
230 PM MDT Sun Sep 13 2026
.TONIGHT...Mostly clear. Lows 36 to 44. Breezy.
.MONDAY...Widespread frost with patchy fog in the morning. Sunny.
Highs 63 to 68.
.MONDAY NIGHT...Mostly clear. Lows 37 to 46.
.TUESDAY...Sunny. Highs 68 to 75.
.TUESDAY NIGHT...Increasing clouds. Lows 43 to 50.
.WEDNESDAY AND WEDNESDAY NIGHT...Mostly clear. Highs 68 to 74.
Lows 45 to 52.
.THURSDAY AND THURSDAY NIGHT...Partly cloudy. A 20 percent chance
of rain showers. Highs 70 to 75. Lows 44 to 52.
.FRIDAY THROUGH SUNDAY...Mostly clear. Highs 69 to 78. Lows 44 to
53.
$$
=
IDZ015-140400-
Southwest Highlands-
230 PM MDT Sun Sep 13 2026
.TONIGHT...Mostly clear. Colder with lows 35 to 42. Windy.
Northwest winds around 25 mph with gusts to 35 mph this evening.
.MONDAY...Areas of frost in the morning. Sunny. Highs 64 to 69.
.MONDAY NIGHT...Mostly clear. Lows 36 to 41.
.TUESDAY...Sunny. Highs 72 to 77.
.TUESDAY NIGHT...Mostly clear. Lows 41 to 46.
.WEDNESDAY...Sunny. Highs 71 to 76.
.WEDNESDAY NIGHT AND THURSDAY...Partly cloudy. Lows 44 to 49.
Highs 72 to 77.
.THURSDAY NIGHT THROUGH SUNDAY...Mostly clear. Lows 42 to 50.
Highs 72 to 80.
$$
=
IDZ030-140400-
Southern Twin Falls County-
230 PM MDT Sun Sep 13 2026
.TONIGHT...Mostly clear. Much colder with lows 37 to 42. Breezy.
.MONDAY...Sunny. Highs 64 to 69.
.MONDAY NIGHT...Mostly clear. Lows 37 to 42.
.TUESDAY...Sunny, warmer with highs 74 to 79.
.TUESDAY NIGHT...Mostly clear. Lows 42 to 47.
.WEDNESDAY...Sunny. Highs 74 to 79.
.WEDNESDAY NIGHT AND THURSDAY...Partly cloudy. Lows 46 to 51.
Highs 74 to 79.
.THURSDAY NIGHT...Partly cloudy with a slight chance of rain
showers in the evening, then mostly clear after midnight. Chance
of rain 20 percent. Lows 43 to 48.
.FRIDAY THROUGH SUNDAY...Mostly clear. Highs 72 to 80. Lows 41 to
50.
$$
=
ORZ062-140400-
Baker County-
130 PM PDT Sun Sep 13 2026
.TONIGHT...Decreasing clouds. Isolated thunderstorms this
evening. A chance of rain showers. Patchy fog this evening. Areas
of fog after midnight. Chance of rain 30 percent. Lows 33 to 46.
West winds up to 10 mph with gusts to 20 mph.
.MONDAY...Areas of fog and frost in the morning. Sunny. Highs
65 to 72. Northwest winds up to 10 mph.
.MONDAY NIGHT...Increasing clouds. Patchy fog after midnight.
Lows 34 to 47. Light winds.
.TUESDAY...Areas of fog in the morning. Mostly sunny. Highs 68 to
76. Southeast winds up to 10 mph.
.TUESDAY NIGHT...Mostly cloudy with a 20 percent chance of rain
showers. Patchy fog after midnight. Lows 36 to 48. North winds
10 to 15 mph with gusts to 25 mph.
.WEDNESDAY...Areas of fog in the morning. Sunny. Highs 69 to 79.
.WEDNESDAY NIGHT...Mostly clear. Patchy fog after midnight. Lows
37 to 50.
.THURSDAY...Areas of fog in the morning. Sunny. Highs 73 to 80.
.THURSDAY NIGHT...A slight chance of thunderstorms in the
evening. Partly cloudy with a chance of rain showers. Areas of
fog after midnight. Chance of rain 30 percent. Lows 39 to 52.
.FRIDAY...Partly cloudy. A slight chance of rain showers in the
morning. Areas of fog in the morning. Chance of rain 20 percent.
Highs 73 to 79.
.FRIDAY NIGHT THROUGH SUNDAY...Mostly clear. Lows 39 to 53. Highs
74 to 81.
&&
TEMPERATURE
Baker City 33 68 34 73
$$
=
ORZ061-140400-
Harney County-
130 PM PDT Sun Sep 13 2026
.TONIGHT...Mostly clear. Areas of fog and frost after midnight.
Lows 31 to 40. West winds 10 to 15 mph. Gusts to 30 mph this
evening, decreasing to 20 mph after midnight.
.MONDAY...Areas of fog and frost in the morning. Sunny. Highs
62 to 69. West winds up to 10 mph.
.MONDAY NIGHT...Mostly clear. Lows 33 to 44. Light winds.
.TUESDAY...Sunny. Highs 68 to 76. Light winds.
.TUESDAY NIGHT...Partly cloudy. A slight chance of rain showers
after midnight. Chance of rain 20 percent. Lows 37 to 47. North
winds 10 to 15 mph with gusts to 25 mph.
.WEDNESDAY...Partly sunny in the morning, then clearing. Highs
66 to 74.
.WEDNESDAY NIGHT...Mostly clear. Lows 37 to 47.
.THURSDAY...Mostly sunny. Highs 67 to 75.
.THURSDAY NIGHT THROUGH SUNDAY...Mostly clear. Lows 38 to 49.
Highs 70 to 80.
&&
TEMPERATURE
Burns 31 67 33 73
$$
=
ORZ063-140400-
Malheur County-
230 PM MDT Sun Sep 13 2026 /130 PM PDT Sun Sep 13 2026/
.TONIGHT...Mostly clear. Patchy fog after midnight. Lows 36 to
46. Breezy. Northwest winds 10 to 20 mph with gusts to 30 mph
this evening, becoming west up to 10 mph with gusts to 20 mph
after midnight.
.MONDAY...Areas of fog and frost in the morning. Sunny. Highs
66 to 72. West winds up to 10 mph.
.MONDAY NIGHT...Mostly clear. Lows 37 to 47. Light winds.
.TUESDAY...Sunny. Highs 72 to 78. Southeast winds up to 10 mph.
.TUESDAY NIGHT...Partly cloudy. A slight chance of rain showers
after midnight. Chance of rain 20 percent. Lows 41 to 51. North
winds 10 to 15 mph.
.WEDNESDAY AND WEDNESDAY NIGHT...Mostly clear. Highs 72 to 78.
Lows 43 to 53.
.THURSDAY...Mostly sunny. Highs 73 to 80.
.THURSDAY NIGHT...Partly cloudy. A slight chance of rain showers
after midnight. Chance of rain 20 percent. Lows 43 to 53.
.FRIDAY THROUGH SUNDAY...Mostly clear. Highs 74 to 82. Lows 43 to
53.
$$
=