Zone Forecast Product
Issued by NWS Boise, ID
Issued by NWS Boise, ID
119
FPUS55 KBOI 312031
ZFPBOI
Zone Forecasts for Southwest Idaho/Southeast Oregon
National Weather Service Boise ID
230 PM MDT Sun May 31 2026
Spot temperatures are for tonight, Monday, Monday night, and
Tuesday.
IDZ011-010400-
West Central Mountains-
230 PM MDT Sun May 31 2026
.TONIGHT...Partly cloudy this evening, then clearing. Patchy fog
after midnight. Lows 34 to 44.
.MONDAY...Patchy fog in the morning. Sunny. Highs 57 to 71.
.MONDAY NIGHT...Mostly cloudy. Lows 37 to 47.
.TUESDAY...Patchy fog in the morning. Mostly sunny. Highs 60 to
74.
.TUESDAY NIGHT...Partly cloudy in the evening, then clearing.
Lows 39 to 49.
.WEDNESDAY...Sunny. Highs 67 to 81.
.WEDNESDAY NIGHT...A slight chance of thunderstorms in the
evening. Mostly cloudy with a chance of rain showers. Chance of
rain 30 percent. Lows 43 to 53.
.THURSDAY...Patchy fog in the morning. Partly cloudy with a
40 percent chance of rain showers. Highs 60 to 74.
.THURSDAY NIGHT AND FRIDAY...Mostly clear. Areas of fog through
the day. Lows 38 to 48. Highs 66 to 78.
.FRIDAY NIGHT AND SATURDAY...Partly cloudy. Lows 41 to 51. Highs
60 to 72.
.SATURDAY NIGHT...Partly cloudy. A slight chance of rain showers
after midnight. Areas of fog after midnight. Chance of rain
20 percent. Lows 36 to 45.
.SUNDAY...Patchy fog in the morning. Partly cloudy with a chance
of rain and snow showers. Chance of precipitation 30 percent.
Highs 53 to 66.
&&
TEMPERATURE
McCall 35 66 37 69
$$
=
IDZ013-010400-
Boise Mountains-
230 PM MDT Sun May 31 2026
.TONIGHT...Mostly clear. Lows 29 to 44.
.MONDAY...Sunny. Highs 61 to 75.
.MONDAY NIGHT...Increasing clouds. Lows 32 to 47.
.TUESDAY...Mostly sunny. Highs 65 to 79.
.TUESDAY NIGHT...Partly cloudy in the evening, then clearing.
Lows 35 to 50.
.WEDNESDAY...Sunny. Highs 72 to 85.
.WEDNESDAY NIGHT AND THURSDAY...Partly cloudy. A 20 percent
chance of rain showers. Lows 40 to 55. Highs 64 to 78.
.THURSDAY NIGHT...Mostly clear. Lows 34 to 49.
.FRIDAY...Sunny. Highs 70 to 84.
.FRIDAY NIGHT...Mostly clear. Lows 39 to 54.
.SATURDAY AND SATURDAY NIGHT...Partly cloudy. Highs 65 to 79.
Lows 34 to 48.
.SUNDAY...Partly cloudy with a 20 percent chance of rain showers.
Highs 57 to 72.
&&
TEMPERATURE
Idaho City 36 74 38 78
$$
=
IDZ028-010400-
Camas Prairie-
230 PM MDT Sun May 31 2026
.TONIGHT...Mostly clear. Lows 33 to 38. Breezy. West winds 10 to
20 mph with gusts to 30 mph this evening, becoming north up to
10 mph after midnight.
.MONDAY...Sunny. Highs 66 to 71. Light winds in the morning,
becoming west 10 to 15 mph with gusts to 25 mph in the afternoon.
.MONDAY NIGHT...Mostly clear. Lows 35 to 40. West winds 10 to
15 mph with gusts to 25 mph in the evening, becoming light after
midnight.
.TUESDAY...Mostly sunny. Highs 72 to 77. Light winds in the
morning, becoming southwest 10 to 15 mph with gusts to 25 mph in
the afternoon.
.TUESDAY NIGHT...Partly cloudy in the evening, then clearing.
Lows 38 to 43. Northwest winds 10 to 15 mph. Gusts to 25 mph in
the evening.
.WEDNESDAY...Sunny. Highs 77 to 82.
.WEDNESDAY NIGHT...Partly cloudy. Lows 43 to 48.
.THURSDAY AND THURSDAY NIGHT...Mostly clear. Highs 72 to 77. Lows
37 to 42. Windy.
.FRIDAY...Sunny. Highs 76 to 81.
.FRIDAY NIGHT...Mostly clear. Lows 42 to 47.
.SATURDAY AND SATURDAY NIGHT...Partly cloudy. Highs 74 to 79.
Lows 39 to 44. Breezy.
.SUNDAY...Mostly sunny. Highs 65 to 70. Breezy.
&&
TEMPERATURE
Fairfield 34 69 35 75
$$
=
IDZ033-010400-
Upper Weiser River-
230 PM MDT Sun May 31 2026
.TONIGHT...Mostly clear. Lows 43 to 48. North winds 10 to 15 mph.
.MONDAY...Sunny. Highs 71 to 77. Northwest winds up to 10 mph.
.MONDAY NIGHT...Mostly cloudy. Lows 47 to 52. North winds up to
10 mph.
.TUESDAY...Mostly sunny. Highs 74 to 80. Light winds.
.TUESDAY NIGHT...Partly cloudy in the evening, then clearing.
Lows 48 to 53. Light winds.
.WEDNESDAY...Sunny. Highs 79 to 85.
.WEDNESDAY NIGHT...A slight chance of thunderstorms in the
evening. Mostly cloudy with a slight chance of showers. Chance of
rain 20 percent. Lows 52 to 57.
.THURSDAY...Partly cloudy with a 20 percent chance of showers.
Highs 73 to 79.
.THURSDAY NIGHT AND FRIDAY...Mostly clear. Lows 47 to 52. Highs
78 to 84.
.FRIDAY NIGHT AND SATURDAY...Partly cloudy. Lows 50 to 55. Highs
73 to 78.
.SATURDAY NIGHT...Partly cloudy. Lows 44 to 49.
.SUNDAY...Partly cloudy with a 20 percent chance of rain showers.
Highs 66 to 71.
&&
TEMPERATURE
Council 44 75 47 78
Cambridge 45 77 48 80
$$
=
ORZ064-010400-
Oregon Lower Treasure Valley-
230 PM MDT Sun May 31 2026 /130 PM PDT Sun May 31 2026/
.TONIGHT...Partly cloudy this evening, then clearing. Lows 47 to
52. Northwest winds 10 to 15 mph with gusts to 25 mph.
.MONDAY...Sunny. Highs 76 to 81. Northwest winds around 10 mph.
.MONDAY NIGHT...Mostly cloudy. Lows 50 to 55. North winds around
10 mph with gusts to 20 mph.
.TUESDAY...Mostly sunny. Highs 80 to 85. Light winds.
.TUESDAY NIGHT...Decreasing clouds. Lows 51 to 56. East winds
around 10 mph in the evening, becoming light after midnight.
.WEDNESDAY...Mostly sunny. Highs 84 to 89.
.WEDNESDAY NIGHT...Decreasing clouds. Lows 54 to 59. Breezy.
.THURSDAY AND THURSDAY NIGHT...Mostly clear. Highs 78 to 83. Lows
49 to 54. Breezy.
.FRIDAY AND FRIDAY NIGHT...Mostly clear. Highs 84 to 89. Lows
52 to 57.
.SATURDAY AND SATURDAY NIGHT...Partly cloudy. Highs 77 to 82.
Lows 47 to 52. Breezy.
.SUNDAY...Sunny. Highs 71 to 76.
&&
TEMPERATURE
Ontario 47 79 51 83
$$
=
IDZ012-010400-
Lower Treasure Valley-
230 PM MDT Sun May 31 2026
.TONIGHT...Decreasing clouds. Lows 45 to 50. Northwest winds
10 to 15 mph.
.MONDAY...Sunny. Highs 76 to 81. Northwest winds up to 10 mph
with gusts to 20 mph.
.MONDAY NIGHT...Partly cloudy. Lows 48 to 53. North winds up to
10 mph with gusts to 20 mph.
.TUESDAY...Mostly sunny. Highs 79 to 84. Light winds.
.TUESDAY NIGHT...Decreasing clouds. Lows 50 to 55. Northeast
winds up to 10 mph.
.WEDNESDAY...Sunny. Highs 84 to 89.
.WEDNESDAY NIGHT...Decreasing clouds. Lows 53 to 58.
.THURSDAY AND THURSDAY NIGHT...Mostly clear. Highs 78 to 83. Lows
49 to 54. Breezy.
.FRIDAY THROUGH SATURDAY...Mostly clear. Highs 78 to 88. Lows
52 to 57.
.SATURDAY NIGHT AND SUNDAY...Partly cloudy. Lows 46 to 51. Highs
71 to 76. Breezy.
&&
TEMPERATURE
Caldwell 46 78 48 82
$$
=
IDZ014-010400-
Upper Treasure Valley-
230 PM MDT Sun May 31 2026
.TONIGHT...Decreasing clouds. Lows 42 to 48. Breezy. Northwest
winds 10 to 20 mph with gusts to 30 mph this evening, decreasing
to around 10 mph after midnight.
.MONDAY...Sunny. Highs 75 to 80. Northwest winds 10 to 15 mph.
.MONDAY NIGHT...Increasing clouds. Lows 45 to 50. Northwest winds
10 to 15 mph in the evening, becoming light after midnight.
.TUESDAY...Mostly sunny. Highs 81 to 86. Light winds in the
morning, becoming northwest around 10 mph in the afternoon.
.TUESDAY NIGHT...Decreasing clouds. Lows 48 to 53. North winds
10 to 15 mph in the evening, becoming light after midnight.
.WEDNESDAY...Sunny. Highs 86 to 91.
.WEDNESDAY NIGHT...Partly cloudy. Lows 52 to 57. Breezy.
.THURSDAY AND THURSDAY NIGHT...Mostly clear. Highs 79 to 84. Lows
47 to 52. Breezy.
.FRIDAY...Sunny. Highs 85 to 90.
.FRIDAY NIGHT...Mostly clear. Lows 50 to 56.
.SATURDAY AND SATURDAY NIGHT...Partly cloudy. Highs 81 to 86.
Lows 47 to 52. Windy.
.SUNDAY...Mostly sunny. Highs 73 to 78. Windy.
&&
TEMPERATURE
Boise 48 78 50 82
Mountain Home 43 79 45 84
$$
=
IDZ016-010400-
Western Magic Valley-
230 PM MDT Sun May 31 2026
.TONIGHT...Mostly clear. Lows 40 to 45. Breezy. West winds 10 to
20 mph with gusts to 30 mph this evening, shifting to south
around 10 mph after midnight.
.MONDAY...Sunny. Highs 72 to 77. Southwest winds 10 to 15 mph.
.MONDAY NIGHT...Mostly clear. Lows 42 to 47. West winds 10 to
15 mph in the evening, shifting to south after midnight.
.TUESDAY...Mostly sunny. Highs 79 to 84. Light winds in the
morning, becoming northwest around 10 mph with gusts to 20 mph in
the afternoon.
.TUESDAY NIGHT...Decreasing clouds. Lows 45 to 50. Northwest
winds around 10 mph with gusts to 20 mph in the evening, shifting
to south up to 10 mph after midnight.
.WEDNESDAY...Sunny. Highs 84 to 89.
.WEDNESDAY NIGHT...Partly cloudy. Lows 51 to 56.
.THURSDAY...Sunny. Highs 78 to 83. Windy.
.THURSDAY NIGHT AND FRIDAY...Clear. Lows 46 to 51. Highs 83 to
88. Breezy.
.FRIDAY NIGHT AND SATURDAY...Mostly clear. Lows 50 to 55. Highs
81 to 86. Breezy.
.SATURDAY NIGHT AND SUNDAY...Partly cloudy. Not as warm. Lows
46 to 51. Highs 71 to 76. Windy.
&&
TEMPERATURE
Jerome 42 75 43 81
Twin Falls 44 74 45 81
$$
=
IDZ029-010400-
Owyhee Mountains-
230 PM MDT Sun May 31 2026
.TONIGHT...Partly cloudy this evening, then clearing. Lows 38 to
47.
.MONDAY...Sunny. Highs 67 to 72.
.MONDAY NIGHT...Increasing clouds. Lows 42 to 50.
.TUESDAY...Mostly sunny. Highs 72 to 78.
.TUESDAY NIGHT...Decreasing clouds. Lows 45 to 53.
.WEDNESDAY AND WEDNESDAY NIGHT...Partly cloudy. Highs 76 to 82.
Lows 46 to 55.
.THURSDAY AND THURSDAY NIGHT...Mostly clear. Highs 70 to 75. Lows
43 to 51. Breezy.
.FRIDAY AND FRIDAY NIGHT...Mostly clear. Highs 76 to 82. Lows
47 to 55.
.SATURDAY AND SATURDAY NIGHT...Partly cloudy. Highs 71 to 76.
Lows 39 to 47. Breezy.
.SUNDAY...Mostly sunny. Highs 64 to 69. Breezy.
$$
=
IDZ015-010400-
Southwest Highlands-
230 PM MDT Sun May 31 2026
.TONIGHT...Partly cloudy this evening, then clearing. Lows 38 to
43.
.MONDAY...Sunny. Highs 69 to 76.
.MONDAY NIGHT...Mostly clear. Lows 40 to 45.
.TUESDAY...Mostly sunny. Highs 76 to 82.
.TUESDAY NIGHT...Mostly clear. Lows 45 to 50.
.WEDNESDAY AND WEDNESDAY NIGHT...Partly cloudy. Highs 81 to 88.
Lows 47 to 52. Breezy.
.THURSDAY AND THURSDAY NIGHT...Mostly clear. Highs 74 to 80. Lows
43 to 48. Breezy.
.FRIDAY AND FRIDAY NIGHT...Mostly clear. Highs 80 to 87. Lows
47 to 53.
.SATURDAY AND SATURDAY NIGHT...Partly cloudy. Highs 76 to 83.
Lows 42 to 47. Windy.
.SUNDAY...Mostly sunny. Cooler with highs 66 to 73. Breezy.
$$
=
IDZ030-010400-
Southern Twin Falls County-
230 PM MDT Sun May 31 2026
.TONIGHT...Partly cloudy. Lows 41 to 46.
.MONDAY...Sunny. Highs 70 to 75.
.MONDAY NIGHT...Mostly clear. Lows 42 to 47.
.TUESDAY...Sunny. Highs 78 to 83.
.TUESDAY NIGHT...Decreasing clouds. Lows 46 to 51.
.WEDNESDAY...Sunny. Highs 83 to 88.
.WEDNESDAY NIGHT...Partly cloudy. Lows 50 to 55.
.THURSDAY AND THURSDAY NIGHT...Mostly clear. Highs 77 to 82. Lows
46 to 51. Breezy.
.FRIDAY...Sunny. Highs 82 to 87.
.FRIDAY NIGHT AND SATURDAY...Mostly clear. Lows 51 to 56. Highs
80 to 85. Breezy.
.SATURDAY NIGHT AND SUNDAY...Partly cloudy. Not as warm. Lows
45 to 50. Highs 69 to 74. Breezy.
$$
=
ORZ062-010400-
Baker County-
130 PM PDT Sun May 31 2026
.TONIGHT...Decreasing clouds. Lows 35 to 46. Breezy. Northwest
winds 10 to 20 mph with gusts to 30 mph this evening, decreasing
to around 10 mph with gusts to 20 mph after midnight.
.MONDAY...Mostly sunny. Highs 68 to 76. Northwest winds 10 to
15 mph. Gusts to 25 mph in the afternoon.
.MONDAY NIGHT...Mostly cloudy. Lows 40 to 50. North winds 10 to
15 mph with gusts to 30 mph in the evening, becoming light after
midnight.
.TUESDAY...Mostly sunny. Highs 73 to 80. Light winds.
.TUESDAY NIGHT...Decreasing clouds. Lows 41 to 52. Northwest
winds up to 10 mph.
.WEDNESDAY...Mostly sunny. Highs 75 to 84.
.WEDNESDAY NIGHT...A slight chance of thunderstorms in the
evening. Mostly cloudy with a chance of rain showers. Chance of
rain 30 percent. Lows 42 to 53. Breezy.
.THURSDAY...Partly cloudy. A slight chance of rain showers in the
morning. Patchy fog in the morning. Chance of rain 20 percent.
Highs 69 to 78. Breezy.
.THURSDAY NIGHT AND FRIDAY...Mostly clear. Lows 38 to 49. Highs
75 to 85.
.FRIDAY NIGHT AND SATURDAY...Partly cloudy. Lows 40 to 51. Highs
66 to 76.
.SATURDAY NIGHT...Partly cloudy in the evening, then mostly
cloudy with a slight chance of rain showers after midnight.
Patchy fog after midnight. Chance of rain 20 percent. Lows 35 to
45. Breezy.
.SUNDAY...Mostly sunny. Patchy fog in the morning. A slight
chance of rain showers in the afternoon. Chance of rain
20 percent. Highs 62 to 71.
&&
TEMPERATURE
Baker City 35 72 40 76
$$
=
ORZ061-010400-
Harney County-
130 PM PDT Sun May 31 2026
.TONIGHT...Mostly clear. Lows 34 to 42. Northwest winds up to
10 mph.
.MONDAY...Sunny. Highs 65 to 73. Light winds.
.MONDAY NIGHT...Partly cloudy. Lows 38 to 46. Light winds.
.TUESDAY...Mostly sunny. Highs 70 to 79. Light winds.
.TUESDAY NIGHT...Decreasing clouds. Lows 41 to 50. North winds up
to 10 mph.
.WEDNESDAY...Mostly sunny. Highs 71 to 80.
.WEDNESDAY NIGHT...Mostly cloudy with a chance of rain showers in
the evening, then partly cloudy after midnight. Chance of rain
30 percent. Lows 39 to 48. Breezy.
.THURSDAY AND THURSDAY NIGHT...Mostly clear. Highs 67 to 75. Lows
38 to 46.
.FRIDAY AND FRIDAY NIGHT...Mostly clear. Highs 73 to 81. Lows
39 to 47.
.SATURDAY THROUGH SUNDAY...Partly cloudy. Highs 62 to 72. Lows
34 to 40. Breezy.
&&
TEMPERATURE
Burns 34 72 38 77
$$
=
ORZ063-010400-
Malheur County-
230 PM MDT Sun May 31 2026 /130 PM PDT Sun May 31 2026/
.TONIGHT...Partly cloudy this evening, then clearing. Lows 39 to
49. North winds 10 to 15 mph with gusts to 25 mph.
.MONDAY...Sunny. Highs 71 to 78. North winds up to 10 mph.
.MONDAY NIGHT...Increasing clouds. Lows 42 to 52. North winds
10 to 15 mph. Gusts to 25 mph in the evening.
.TUESDAY...Mostly sunny. Highs 76 to 83. Light winds.
.TUESDAY NIGHT...Decreasing clouds. Lows 44 to 54. North winds up
to 10 mph.
.WEDNESDAY...Mostly sunny. Highs 79 to 86.
.WEDNESDAY NIGHT...Decreasing clouds. A 20 percent chance of
showers. Lows 45 to 55. Breezy.
.THURSDAY AND THURSDAY NIGHT...Mostly clear. Highs 73 to 80. Lows
42 to 52. Breezy.
.FRIDAY AND FRIDAY NIGHT...Mostly clear. Highs 80 to 86. Lows
45 to 54.
.SATURDAY AND SATURDAY NIGHT...Partly cloudy. Highs 71 to 79.
Lows 39 to 48. Windy.
.SUNDAY...Mostly sunny. Highs 66 to 73.
$$
=