189
FPUS55 KBOI 190908
ZFPBOI
ZONE FORECASTS FOR SOUTHWEST IDAHO/SOUTHEAST OREGON
NATIONAL WEATHER SERVICE BOISE ID
207 AM MST MON JAN 19 2026
SPOT TEMPERATURES ARE FOR TODAY, TONIGHT, AND TUESDAY.
IDZ011-191700-
WEST CENTRAL MOUNTAINS-
207 AM MST MON JAN 19 2026
...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
/11 AM MST/ THURSDAY...
TODAY
SUNNY. AREAS OF DENSE FOG THIS MORNING. PATCHY FOG THIS
AFTERNOON. HIGHS 28 TO 38.
TONIGHT
MOSTLY CLEAR. PATCHY FOG. LOWS 10 TO 20.
TUESDAY
PATCHY FOG IN THE MORNING. MOSTLY SUNNY. HIGHS 30 TO
38.
TUESDAY NIGHT
MOSTLY CLEAR. PATCHY FOG. LOWS 9 TO 20.
WEDNESDAY
PATCHY FOG IN THE MORNING. SUNNY. HIGHS 28 TO 37.
WEDNESDAY NIGHT AND THURSDAY
PARTLY CLOUDY. LOWS 10 TO 20.
HIGHS 29 TO 36.
THURSDAY NIGHT AND FRIDAY
PARTLY CLOUDY. PATCHY FOG THROUGH
THE DAY. LOWS 13 TO 24. HIGHS 31 TO 39.
FRIDAY NIGHT
DECREASING CLOUDS. PATCHY FOG AFTER MIDNIGHT.
LOWS 13 TO 23.
SATURDAY AND SATURDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE
OF SNOW. PATCHY FOG IN THE MORNING. PATCHY FOG AFTER MIDNIGHT.
HIGHS 29 TO 38. LOWS 14 TO 25.
SUNDAY
PATCHY FOG IN THE MORNING. PARTLY CLOUDY WITH A
30 PERCENT CHANCE OF SNOW. HIGHS 31 TO 39.
TEMPERATURE
MCCALL 34 7 33
=
IDZ013-191700-
BOISE MOUNTAINS-
207 AM MST MON JAN 19 2026
...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
/11 AM MST/ THURSDAY...
TODAY
MOSTLY SUNNY. AREAS OF DENSE FOG THIS MORNING. PATCHY
FOG THIS AFTERNOON. HIGHS 30 TO 40.
TONIGHT
DECREASING CLOUDS. PATCHY FOG. LOWS 12 TO 24.
TUESDAY
PATCHY FOG IN THE MORNING. MOSTLY SUNNY. HIGHS 31 TO
41.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 13 TO 24.
WEDNESDAY
SUNNY. HIGHS 31 TO 41.
WEDNESDAY NIGHT
INCREASING CLOUDS. LOWS 14 TO 25.
THURSDAY
PARTLY SUNNY. HIGHS 32 TO 42.
THURSDAY NIGHT AND FRIDAY
PARTLY CLOUDY. LOWS 11 TO 26. HIGHS
31 TO 42.
FRIDAY NIGHT
MOSTLY CLEAR. PATCHY FOG AFTER MIDNIGHT. LOWS
11 TO 26.
SATURDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF SNOW IN THE
AFTERNOON. CHANCE OF SNOW 20 PERCENT. HIGHS 31 TO 42.
SATURDAY NIGHT
PARTLY CLOUDY. A SLIGHT CHANCE OF SNOW AFTER
MIDNIGHT. CHANCE OF SNOW 20 PERCENT. LOWS 13 TO 28.
SUNDAY
PARTLY CLOUDY. A CHANCE OF SNOW, MAINLY IN THE MORNING.
CHANCE OF SNOW 30 PERCENT. HIGHS 33 TO 44.
TEMPERATURE
IDAHO CITY 39 15 40
=
IDZ028-191700-
CAMAS PRAIRIE-
207 AM MST MON JAN 19 2026
...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
/11 AM MST/ THURSDAY...
TODAY
DECREASING CLOUDS. AREAS OF FOG THIS MORNING. PATCHY FOG
THIS AFTERNOON. HIGHS 38 TO 43. LIGHT WINDS.
TONIGHT
MOSTLY CLOUDY. PATCHY FOG IN THE EVENING. AREAS OF FOG
AFTER MIDNIGHT. LOWS 12 TO 18. LIGHT WINDS.
TUESDAY
DECREASING CLOUDS. AREAS OF FOG IN THE MORNING. HIGHS
40 TO 45. WEST WINDS UP TO 10 MPH.
TUESDAY NIGHT
MOSTLY CLEAR IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS 11 TO 17. LIGHT WINDS.
WEDNESDAY
SUNNY. HIGHS 39 TO 44. LIGHT WINDS.
WEDNESDAY NIGHT
INCREASING CLOUDS. LOWS 14 TO 21.
THURSDAY
PARTLY SUNNY. HIGHS 38 TO 43.
THURSDAY NIGHT AND FRIDAY
PARTLY CLOUDY. LOWS 17 TO 22. HIGHS
36 TO 41.
FRIDAY NIGHT THROUGH SATURDAY NIGHT
MOSTLY CLEAR. LOWS 15 TO
22. HIGHS 36 TO 41.
SUNDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF SNOW IN THE MORNING.
CHANCE OF SNOW 20 PERCENT. HIGHS 38 TO 43.
TEMPERATURE
FAIRFIELD 42 12 45
=
IDZ033-191700-
UPPER WEISER RIVER-
207 AM MST MON JAN 19 2026
...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
/11 AM MST/ THURSDAY...
TODAY
CLOUDY. AREAS OF DENSE FOG THIS MORNING, THEN PATCHY FOG
THIS AFTERNOON. HIGHS 25 TO 30. LIGHT WINDS.
TONIGHT
CLOUDY. PATCHY FOG IN THE EVENING, THEN AREAS OF FOG
AFTER MIDNIGHT. LOWS 19 TO 24. LIGHT WINDS.
TUESDAY
AREAS OF FOG IN THE MORNING. MOSTLY CLOUDY. HIGHS
27 TO 32. LIGHT WINDS.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS 20 TO 25. LIGHT WINDS.
WEDNESDAY
MOSTLY SUNNY. HIGHS 29 TO 34. LIGHT WINDS.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS 20 TO 25.
THURSDAY
PARTLY SUNNY. HIGHS 32 TO 37.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS 23 TO 28.
FRIDAY AND FRIDAY NIGHT
MOSTLY CLEAR. HIGHS 38 TO 43. LOWS
22 TO 27.
SATURDAY AND SATURDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE
OF SNOW. HIGHS 38 TO 43. LOWS 23 TO 28.
SUNDAY
PARTLY CLOUDY WITH A CHANCE OF SNOW, MIXED WITH RAIN IN
THE AFTERNOON. CHANCE OF PRECIPITATION 30 PERCENT. HIGHS 38 TO
43.
TEMPERATURE
COUNCIL 28 21 31
CAMBRIDGE 29 21 31
=
ORZ064-191700-
OREGON LOWER TREASURE VALLEY-
207 AM MST MON JAN 19 2026 /107 AM PST MON JAN 19 2026/
...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
/11 AM MST/ THURSDAY...
TODAY
CLOUDY. AREAS OF DENSE FOG THIS MORNING, THEN PATCHY FOG
THIS AFTERNOON. HIGHS 27 TO 32. LIGHT WINDS.
TONIGHT
CLOUDY. PATCHY FOG IN THE EVENING, THEN AREAS OF FOG
AFTER MIDNIGHT. LOWS 20 TO 25. LIGHT WINDS.
TUESDAY
AREAS OF FOG IN THE MORNING. CLOUDY. HIGHS 27 TO 32.
LIGHT WINDS.
TUESDAY NIGHT
PARTLY CLOUDY. PATCHY FOG AFTER MIDNIGHT. LOWS
19 TO 24. LIGHT WINDS.
WEDNESDAY
PARTLY SUNNY. HIGHS 31 TO 36. LIGHT WINDS.
WEDNESDAY NIGHT AND THURSDAY
MOSTLY CLOUDY. LOWS 22 TO 27.
HIGHS 33 TO 38.
THURSDAY NIGHT AND FRIDAY
PARTLY CLOUDY. LOWS 23 TO 28. HIGHS
40 TO 45.
FRIDAY NIGHT
DECREASING CLOUDS. LOWS 22 TO 27.
SATURDAY AND SATURDAY NIGHT
PARTLY CLOUDY. HIGHS 40 TO 45.
LOWS 23 TO 28.
SUNDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN AND SNOW.
CHANCE OF PRECIPITATION 20 PERCENT. HIGHS 39 TO 44.
TEMPERATURE
ONTARIO 30 23 29
=
IDZ012-191700-
LOWER TREASURE VALLEY-
207 AM MST MON JAN 19 2026
...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
/11 AM MST/ THURSDAY...
TODAY
CLOUDY. AREAS OF DENSE FOG THIS MORNING, THEN PATCHY FOG
THIS AFTERNOON. HIGHS 28 TO 33. LIGHT WINDS.
TONIGHT
CLOUDY. PATCHY FOG IN THE EVENING, THEN AREAS OF FOG
AFTER MIDNIGHT. LOWS 22 TO 27. LIGHT WINDS.
TUESDAY
AREAS OF FOG IN THE MORNING. CLOUDY. HIGHS 27 TO 32.
LIGHT WINDS.
TUESDAY NIGHT
PARTLY CLOUDY. PATCHY FOG. LOWS 22 TO 27. LIGHT
WINDS.
WEDNESDAY
PATCHY FOG IN THE MORNING. MOSTLY SUNNY. HIGHS 30 TO
35. LIGHT WINDS.
WEDNESDAY NIGHT
INCREASING CLOUDS. PATCHY FOG AFTER MIDNIGHT.
LOWS 23 TO 28.
THURSDAY
MOSTLY CLOUDY IN THE MORNING, THEN BECOMING PARTLY
SUNNY. PATCHY FOG IN THE MORNING. HIGHS 33 TO 38.
THURSDAY NIGHT
DECREASING CLOUDS. PATCHY FOG AFTER MIDNIGHT.
LOWS 23 TO 28.
FRIDAY
AREAS OF FOG IN THE MORNING. MOSTLY SUNNY. HIGHS 39 TO
44.
FRIDAY NIGHT AND SATURDAY
PARTLY CLOUDY. PATCHY FOG THROUGH
THE DAY. LOWS 23 TO 28. HIGHS 40 TO 45.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS 24 TO 29.
SUNDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN AND SNOW.
CHANCE OF PRECIPITATION 20 PERCENT. HIGHS 41 TO 46.
TEMPERATURE
CALDWELL 31 25 30
=
IDZ014-191700-
UPPER TREASURE VALLEY-
207 AM MST MON JAN 19 2026
...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
/11 AM MST/ THURSDAY...
TODAY
CLOUDY. AREAS OF DENSE FOG THIS MORNING, THEN PATCHY FOG
THIS AFTERNOON. HIGHS 28 TO 33. LIGHT WINDS.
TONIGHT
CLOUDY. PATCHY FOG IN THE EVENING, THEN AREAS OF DENSE
FOG AFTER MIDNIGHT. LOWS 21 TO 26. LIGHT WINDS.
TUESDAY
AREAS OF DENSE FOG IN THE MORNING. CLOUDY. HIGHS 28 TO
33. LIGHT WINDS.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS 21 TO 26. LIGHT WINDS.
WEDNESDAY
MOSTLY SUNNY. HIGHS 33 TO 38. LIGHT WINDS.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS 21 TO 26.
THURSDAY
PARTLY SUNNY. HIGHS 35 TO 40.
THURSDAY NIGHT
DECREASING CLOUDS. LOWS 22 TO 27.
FRIDAY
PATCHY FOG IN THE MORNING. MOSTLY SUNNY. HIGHS 40 TO
45.
FRIDAY NIGHT THROUGH SATURDAY NIGHT
PARTLY CLOUDY. LOWS 22 TO
28. HIGHS 42 TO 47.
SUNDAY
PARTLY SUNNY. HIGHS 44 TO 49.
TEMPERATURE
BOISE 32 25 31
MOUNTAIN HOME 31 22 31
=
IDZ016-191700-
WESTERN MAGIC VALLEY-
207 AM MST MON JAN 19 2026
...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
/11 AM MST/ THURSDAY...
..DENSE FOG ADVISORY IN EFFECT UNTIL 11 AM MST MONDAY
TODAY
CLOUDY. AREAS OF DENSE FOG THIS MORNING, THEN PATCHY FOG
THIS AFTERNOON. HIGHS 28 TO 33. LIGHT WINDS.
TONIGHT
CLOUDY. PATCHY FOG IN THE EVENING, THEN AREAS OF FOG
AFTER MIDNIGHT. LOWS 20 TO 25. LIGHT WINDS.
TUESDAY
AREAS OF FOG IN THE MORNING. MOSTLY CLOUDY. HIGHS
28 TO 33. SOUTHWEST WINDS UP TO 10 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS 20 TO 25. LIGHT WINDS.
WEDNESDAY
MOSTLY SUNNY. HIGHS 34 TO 39. LIGHT WINDS.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS 22 TO 27.
THURSDAY AND THURSDAY NIGHT
MOSTLY CLOUDY. HIGHS 36 TO 41.
LOWS 22 TO 27.
FRIDAY THROUGH SATURDAY
PARTLY CLOUDY. HIGHS 38 TO 44. LOWS
22 TO 27.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS 23 TO 28.
SUNDAY
MOSTLY SUNNY. HIGHS 42 TO 47.
TEMPERATURE
JEROME 28 23 29
TWIN FALLS 30 22 32
=
IDZ029-191700-
OWYHEE MOUNTAINS-
207 AM MST MON JAN 19 2026
TODAY
MOSTLY SUNNY. AREAS OF FOG THIS MORNING. PATCHY FOG THIS
AFTERNOON. HIGHS 31 TO 41.
TONIGHT
PARTLY CLOUDY. PATCHY FOG IN THE EVENING. AREAS OF FOG
AFTER MIDNIGHT. LOWS 19 TO 25.
TUESDAY
AREAS OF FOG IN THE MORNING. MOSTLY SUNNY. HIGHS 32 TO
42.
TUESDAY NIGHT
INCREASING CLOUDS. LOWS 21 TO 26.
WEDNESDAY
MOSTLY SUNNY. HIGHS 33 TO 43.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS 23 TO 28.
THURSDAY
PARTLY SUNNY. HIGHS 35 TO 45.
THURSDAY NIGHT THROUGH FRIDAY NIGHT
PARTLY CLOUDY. LOWS 23 TO
28. HIGHS 36 TO 44.
SATURDAY
SUNNY. HIGHS 39 TO 45.
SATURDAY NIGHT AND SUNDAY
PARTLY CLOUDY. LOWS 25 TO 30. HIGHS
39 TO 48.
=
IDZ015-191700-
SOUTHWEST HIGHLANDS-
207 AM MST MON JAN 19 2026
TODAY
MOSTLY SUNNY. AREAS OF DENSE FOG THIS MORNING. PATCHY
FOG THIS AFTERNOON. HIGHS 34 TO 44.
TONIGHT
PARTLY CLOUDY. PATCHY FOG IN THE EVENING. AREAS OF
DENSE FOG AFTER MIDNIGHT. LOWS 17 TO 22.
TUESDAY
AREAS OF DENSE FOG IN THE MORNING. MOSTLY SUNNY. HIGHS
34 TO 44.
TUESDAY NIGHT
INCREASING CLOUDS. LOWS 19 TO 24.
WEDNESDAY
MOSTLY SUNNY. HIGHS 38 TO 48.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS 22 TO 27.
THURSDAY AND THURSDAY NIGHT
MOSTLY CLOUDY. HIGHS 39 TO 49.
LOWS 22 TO 27.
FRIDAY AND FRIDAY NIGHT
PARTLY CLOUDY. HIGHS 39 TO 45. LOWS
20 TO 25.
SATURDAY AND SATURDAY NIGHT
MOSTLY CLEAR. HIGHS 42 TO 47. LOWS
21 TO 26.
SUNDAY
MOSTLY SUNNY. HIGHS 45 TO 50.
=
IDZ030-191700-
SOUTHERN TWIN FALLS COUNTY-
207 AM MST MON JAN 19 2026
TODAY
PARTLY SUNNY. AREAS OF DENSE FOG THIS MORNING. PATCHY
FOG THIS AFTERNOON. HIGHS 33 TO 43.
TONIGHT
MOSTLY CLOUDY. PATCHY FOG IN THE EVENING. AREAS OF
DENSE FOG AFTER MIDNIGHT. LOWS 19 TO 24.
TUESDAY
AREAS OF DENSE FOG IN THE MORNING. MOSTLY SUNNY. HIGHS
36 TO 46.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS 19 TO 24.
WEDNESDAY
MOSTLY SUNNY. HIGHS 37 TO 47.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS 21 TO 27.
THURSDAY AND THURSDAY NIGHT
MOSTLY CLOUDY. HIGHS 40 TO 47.
LOWS 22 TO 27.
FRIDAY AND FRIDAY NIGHT
PARTLY CLOUDY. HIGHS 38 TO 43. LOWS
22 TO 27.
SATURDAY AND SATURDAY NIGHT
MOSTLY CLEAR. HIGHS 41 TO 46. LOWS
22 TO 27.
SUNDAY
MOSTLY SUNNY. HIGHS 44 TO 49.
=
ORZ062-191700-
BAKER COUNTY-
107 AM PST MON JAN 19 2026
...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
/11 AM MST/ THURSDAY...
TODAY
MOSTLY SUNNY. AREAS OF FOG THIS MORNING. PATCHY FOG THIS
AFTERNOON. HIGHS 28 TO 36. SOUTHEAST WINDS UP TO 10 MPH.
TONIGHT
PARTLY CLOUDY. PATCHY FOG. LOWS 16 TO 23. LIGHT WINDS.
TUESDAY
PATCHY FOG IN THE MORNING. MOSTLY SUNNY. HIGHS 30 TO
37. LIGHT WINDS.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 15 TO 23. LIGHT WINDS.
WEDNESDAY
SUNNY. HIGHS 31 TO 37. LIGHT WINDS.
WEDNESDAY NIGHT THROUGH THURSDAY NIGHT
PARTLY CLOUDY. LOWS
17 TO 26. HIGHS 34 TO 39.
FRIDAY AND FRIDAY NIGHT
MOSTLY CLEAR. HIGHS 38 TO 43. LOWS
19 TO 26.
SATURDAY AND SATURDAY NIGHT
PARTLY CLOUDY. A 20 PERCENT CHANCE
OF SNOW. HIGHS 39 TO 44. LOWS 20 TO 27.
SUNDAY
PARTLY CLOUDY WITH A 30 PERCENT CHANCE OF SNOW. HIGHS
39 TO 44.
TEMPERATURE
BAKER CITY 29 17 32
=
ORZ061-191700-
HARNEY COUNTY-
107 AM PST MON JAN 19 2026
...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
/11 AM MST/ THURSDAY...
TODAY
SUNNY. PATCHY FOG. HIGHS 39 TO 47. LIGHT WINDS.
TONIGHT
MOSTLY CLEAR. PATCHY FOG. LOWS 13 TO 23. LIGHT WINDS.
TUESDAY
PATCHY FOG IN THE MORNING. SUNNY. HIGHS 40 TO 48.
LIGHT WINDS.
TUESDAY NIGHT
INCREASING CLOUDS. LOWS 13 TO 24. LIGHT WINDS.
WEDNESDAY
MOSTLY SUNNY. HIGHS 39 TO 47. LIGHT WINDS.
WEDNESDAY NIGHT AND THURSDAY
MOSTLY CLOUDY. LOWS 17 TO 27.
HIGHS 42 TO 47.
THURSDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS 17 TO 28.
FRIDAY AND FRIDAY NIGHT
MOSTLY CLEAR. HIGHS 42 TO 47. LOWS
16 TO 26.
SATURDAY AND SATURDAY NIGHT
PARTLY CLOUDY. HIGHS 43 TO 48.
LOWS 18 TO 28.
SUNDAY
PARTLY SUNNY. HIGHS 45 TO 50.
TEMPERATURE
BURNS 44 13 44
=
ORZ063-191700-
MALHEUR COUNTY-
207 AM MST MON JAN 19 2026 /107 AM PST MON JAN 19 2026/
...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
/11 AM MST/ THURSDAY...
TODAY
MOSTLY SUNNY. AREAS OF DENSE FOG THIS MORNING. PATCHY
FOG THIS AFTERNOON. HIGHS 30 TO 40. LIGHT WINDS.
TONIGHT
PARTLY CLOUDY. PATCHY FOG IN THE EVENING. AREAS OF FOG
AFTER MIDNIGHT. LOWS 14 TO 23. LIGHT WINDS.
TUESDAY
AREAS OF FOG IN THE MORNING. MOSTLY SUNNY. HIGHS 31 TO
41. LIGHT WINDS.
TUESDAY NIGHT
INCREASING CLOUDS. LOWS 15 TO 23. LIGHT WINDS.
WEDNESDAY
MOSTLY SUNNY. HIGHS 32 TO 42. LIGHT WINDS.
WEDNESDAY NIGHT AND THURSDAY
MOSTLY CLOUDY. LOWS 18 TO 25.
HIGHS 34 TO 44.
THURSDAY NIGHT AND FRIDAY
PARTLY CLOUDY. LOWS 21 TO 27. HIGHS
39 TO 46.
FRIDAY NIGHT AND SATURDAY
MOSTLY CLEAR. LOWS 19 TO 26. HIGHS
39 TO 47.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS 21 TO 27.
SUNDAY
PARTLY SUNNY. HIGHS 39 TO 49.
=
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