912  
FPUS55 KBOI 132108  
ZFPBOI  
 
ZONE FORECASTS FOR SOUTHWEST IDAHO/SOUTHEAST OREGON  
NATIONAL WEATHER SERVICE BOISE ID  
207 PM MST TUE JAN 13 2026  
 
SPOT TEMPERATURES ARE FOR TONIGHT, WEDNESDAY, WEDNESDAY NIGHT,  
AND THURSDAY.  
 
IDZ011-140500-  
WEST CENTRAL MOUNTAINS-  
207 PM MST TUE JAN 13 2026  
 
...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST /5 AM  
MST/ MONDAY...  
   
TONIGHT
 
PARTLY CLOUDY. WIDESPREAD FOG THIS EVENING. AREAS OF  
FOG AFTER MIDNIGHT. LOWS 19 TO 29.    
WEDNESDAY
 
SUNNY. WIDESPREAD FOG. HIGHS 30 TO 40.    
WEDNESDAY NIGHT
 
MOSTLY CLEAR. WIDESPREAD FOG. LOWS 17 TO 27.    
THURSDAY
 
SUNNY. WIDESPREAD FOG IN THE MORNING. AREAS OF FOG IN  
THE AFTERNOON. HIGHS 30 TO 40.    
THURSDAY NIGHT
 
MOSTLY CLEAR. AREAS OF FOG IN THE EVENING.  
WIDESPREAD FOG AFTER MIDNIGHT. LOWS 15 TO 25.    
FRIDAY AND FRIDAY NIGHT
 
MOSTLY CLEAR. HIGHS 29 TO 38. LOWS  
18 TO 26.    
SATURDAY THROUGH SUNDAY NIGHT
 
CLEAR. HIGHS 28 TO 38. LOWS  
18 TO 27.    
MARTIN LUTHER KING JR DAY AND MONDAY NIGHT
 
MOSTLY CLEAR. HIGHS  
30 TO 41. LOWS 20 TO 28.    
TUESDAY
 
MOSTLY SUNNY. HIGHS 34 TO 40.  
 

 
TEMPERATURE  
MCCALL 16 29 15 29  
 

 
=  
 
IDZ013-140500-  
BOISE MOUNTAINS-  
207 PM MST TUE JAN 13 2026  
 
...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST /5 AM  
MST/ MONDAY...  
   
TONIGHT
 
PARTLY CLOUDY. AREAS OF FOG THIS EVENING. WIDESPREAD  
FOG AFTER MIDNIGHT. LOWS 22 TO 32.    
WEDNESDAY
 
SUNNY. WIDESPREAD FOG IN THE MORNING. PATCHY FOG IN  
THE AFTERNOON. HIGHS 38 TO 48.    
WEDNESDAY NIGHT
 
CLEAR. WIDESPREAD FOG. LOWS 19 TO 30.    
THURSDAY
 
SUNNY. WIDESPREAD FOG IN THE MORNING. PATCHY FOG IN  
THE AFTERNOON. HIGHS 37 TO 47.    
THURSDAY NIGHT
 
CLEAR. WIDESPREAD FOG. LOWS 16 TO 28.    
FRIDAY AND FRIDAY NIGHT
 
MOSTLY CLEAR. HIGHS 36 TO 46. LOWS  
16 TO 29.    
SATURDAY THROUGH SUNDAY NIGHT
 
CLEAR. HIGHS 39 TO 48. LOWS  
17 TO 29.    
MARTIN LUTHER KING JR DAY AND MONDAY NIGHT
 
MOSTLY CLEAR. HIGHS  
39 TO 48. LOWS 17 TO 31.    
TUESDAY
 
MOSTLY SUNNY. HIGHS 36 TO 48.  
 

 
TEMPERATURE  
IDAHO CITY 24 42 21 43  
 

 
=  
 
IDZ028-140500-  
CAMAS PRAIRIE-  
207 PM MST TUE JAN 13 2026  
 
...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST /5 AM  
MST/ MONDAY...  
   
TONIGHT
 
PARTLY CLOUDY. WIDESPREAD FOG. LOWS 22 TO 27. LIGHT  
WINDS.    
WEDNESDAY
 
WIDESPREAD FOG IN THE MORNING. SUNNY. HIGHS 40 TO  
45. LIGHT WINDS.    
WEDNESDAY NIGHT
 
MOSTLY CLEAR. WIDESPREAD FOG. LOWS 20 TO 25.  
LIGHT WINDS.    
THURSDAY
 
AREAS OF FOG IN THE MORNING. SUNNY. HIGHS 40 TO 45.  
LIGHT WINDS.    
THURSDAY NIGHT
 
MOSTLY CLEAR. AREAS OF FOG. LOWS 18 TO 23.  
LIGHT WINDS.    
FRIDAY AND FRIDAY NIGHT
 
MOSTLY CLEAR. HIGHS 40 TO 45. LOWS  
19 TO 24.    
SATURDAY THROUGH SUNDAY NIGHT
 
CLEAR. HIGHS 41 TO 46. LOWS  
19 TO 25.    
MARTIN LUTHER KING JR DAY THROUGH TUESDAY
 
MOSTLY CLEAR. HIGHS  
42 TO 47. LOWS 21 TO 26.  
 

 
TEMPERATURE  
FAIRFIELD 22 42 20 42  
 

 
=  
 
IDZ033-140500-  
UPPER WEISER RIVER-  
207 PM MST TUE JAN 13 2026  
 
...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST /5 AM  
MST/ MONDAY...  
   
TONIGHT
 
PARTLY CLOUDY. WIDESPREAD FOG. LOWS 25 TO 30. LIGHT  
WINDS.    
WEDNESDAY
 
SUNNY. WIDESPREAD FOG IN THE MORNING. AREAS OF FOG  
IN THE AFTERNOON. HIGHS 37 TO 42. LIGHT WINDS.    
WEDNESDAY NIGHT
 
MOSTLY CLEAR. WIDESPREAD FOG. LOWS 24 TO 29.  
LIGHT WINDS.    
THURSDAY
 
SUNNY. WIDESPREAD FOG IN THE MORNING. PATCHY FOG IN  
THE AFTERNOON. HIGHS 37 TO 46. LIGHT WINDS.    
THURSDAY NIGHT
 
MOSTLY CLEAR. WIDESPREAD FOG. LOWS 23 TO 28.  
LIGHT WINDS.    
FRIDAY THROUGH SATURDAY
 
MOSTLY CLEAR. HIGHS 34 TO 40. LOWS  
24 TO 29.    
SATURDAY NIGHT AND SUNDAY
 
CLEAR. LOWS 24 TO 29. HIGHS 34 TO  
39.    
SUNDAY NIGHT THROUGH MONDAY NIGHT
 
MOSTLY CLEAR. LOWS 24 TO 30.  
HIGHS 35 TO 40.    
TUESDAY
 
MOSTLY SUNNY. HIGHS 36 TO 41.  
 

 
TEMPERATURE  
COUNCIL 27 42 26 46  
CAMBRIDGE 26 42 25 43  
 

 
=  
 
ORZ064-140500-  
OREGON LOWER TREASURE VALLEY-  
207 PM MST TUE JAN 13 2026 /107 PM PST TUE JAN 13 2026/  
 
...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST /5 AM  
MST/ MONDAY...  
...DENSE FOG ADVISORY IN EFFECT FROM 11 PM MST /10 PM PST/ THIS  
EVENING TO NOON MST /11 AM PST/ WEDNESDAY...  
   
TONIGHT
 
PARTLY CLOUDY. AREAS OF FOG. LOWS 24 TO 29. LIGHT  
WINDS.    
WEDNESDAY
 
MOSTLY SUNNY. WIDESPREAD FOG IN THE MORNING, THEN  
PATCHY FOG IN THE AFTERNOON. HIGHS 34 TO 39. LIGHT WINDS.    
WEDNESDAY NIGHT
 
MOSTLY CLEAR. WIDESPREAD FOG. LOWS 24 TO 30.  
LIGHT WINDS.    
THURSDAY
 
MOSTLY SUNNY. WIDESPREAD FOG IN THE MORNING, THEN  
PATCHY FOG IN THE AFTERNOON. HIGHS 36 TO 41. LIGHT WINDS.    
THURSDAY NIGHT
 
MOSTLY CLEAR. AREAS OF FOG IN THE EVENING, THEN  
WIDESPREAD FOG AFTER MIDNIGHT. LOWS 21 TO 27. LIGHT WINDS.    
FRIDAY
 
MOSTLY SUNNY. HIGHS 34 TO 39.    
FRIDAY NIGHT
 
MOSTLY CLEAR. LOWS 21 TO 28.    
SATURDAY
 
PATCHY FOG IN THE MORNING. SUNNY. HIGHS 36 TO 41.    
SATURDAY NIGHT THROUGH SUNDAY NIGHT
 
MOSTLY CLEAR. LOWS 22 TO  
28. HIGHS 37 TO 42.    
MARTIN LUTHER KING JR DAY
 
MOSTLY SUNNY. HIGHS 37 TO 42.    
MONDAY NIGHT
 
INCREASING CLOUDS. LOWS 23 TO 28.    
TUESDAY
 
MOSTLY SUNNY. HIGHS 38 TO 43.  
 

 
TEMPERATURE  
ONTARIO 24 36 24 37  
 

 
=  
 
IDZ012-140500-  
LOWER TREASURE VALLEY-  
207 PM MST TUE JAN 13 2026  
 
...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST /5 AM  
MST/ MONDAY...  
...DENSE FOG ADVISORY IN EFFECT FROM 11 PM MST /10 PM PST/ THIS  
EVENING TO NOON MST /11 AM PST/ WEDNESDAY...  
   
TONIGHT
 
PARTLY CLOUDY. WIDESPREAD FOG. LOWS 23 TO 28. LIGHT  
WINDS.    
WEDNESDAY
 
SUNNY. WIDESPREAD FOG IN THE MORNING. AREAS OF FOG  
IN THE AFTERNOON. HIGHS 36 TO 41. LIGHT WINDS.    
WEDNESDAY NIGHT
 
MOSTLY CLEAR. WIDESPREAD FOG. LOWS 24 TO 29.  
LIGHT WINDS.    
THURSDAY
 
MOSTLY SUNNY. WIDESPREAD FOG IN THE MORNING. AREAS OF  
FOG IN THE AFTERNOON. HIGHS 36 TO 41. LIGHT WINDS.    
THURSDAY NIGHT
 
MOSTLY CLEAR. WIDESPREAD FOG. LOWS 22 TO 27.  
LIGHT WINDS.    
FRIDAY
 
AREAS OF FOG IN THE MORNING. MOSTLY SUNNY. HIGHS 35 TO  
40.    
FRIDAY NIGHT AND SATURDAY
 
MOSTLY CLEAR. PATCHY FOG IN THE  
EVENING. AREAS OF FOG THROUGH THE DAY. LOWS 22 TO 27. HIGHS 36 TO  
41.    
SATURDAY NIGHT
 
MOSTLY CLEAR. PATCHY FOG AFTER MIDNIGHT. LOWS  
22 TO 28.    
SUNDAY
 
AREAS OF FOG IN THE MORNING. SUNNY. HIGHS 37 TO 42.    
SUNDAY NIGHT AND MARTIN LUTHER KING JR DAY
 
MOSTLY CLEAR.  
PATCHY FOG THROUGH THE DAY. LOWS 22 TO 28. HIGHS 37 TO 42.    
MONDAY NIGHT
 
INCREASING CLOUDS. LOWS 24 TO 29.    
TUESDAY
 
MOSTLY SUNNY. HIGHS 38 TO 43.  
 

 
TEMPERATURE  
CALDWELL 24 38 24 38  
 

 
=  
 
IDZ014-140500-  
UPPER TREASURE VALLEY-  
207 PM MST TUE JAN 13 2026  
 
...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST /5 AM  
MST/ MONDAY...  
   
TONIGHT
 
PARTLY CLOUDY. WIDESPREAD FOG. LOWS 22 TO 28. LIGHT  
WINDS.    
WEDNESDAY
 
SUNNY. WIDESPREAD FOG IN THE MORNING. PATCHY FOG IN  
THE AFTERNOON. HIGHS 41 TO 46. LIGHT WINDS.    
WEDNESDAY NIGHT
 
MOSTLY CLEAR. WIDESPREAD DENSE FOG. LOWS 21 TO  
26. LIGHT WINDS.    
THURSDAY
 
SUNNY. WIDESPREAD FOG IN THE MORNING. PATCHY FOG IN  
THE AFTERNOON. HIGHS 40 TO 45. LIGHT WINDS.    
THURSDAY NIGHT
 
MOSTLY CLEAR. WIDESPREAD FOG. LOWS 20 TO 26.  
LIGHT WINDS.    
FRIDAY
 
AREAS OF FOG IN THE MORNING. SUNNY. HIGHS 40 TO 46.    
FRIDAY NIGHT
 
MOSTLY CLEAR. LOWS 21 TO 26.    
SATURDAY
 
PATCHY FOG IN THE MORNING. SUNNY. HIGHS 41 TO 46.    
SATURDAY NIGHT
 
CLEAR. LOWS 21 TO 26.    
SUNDAY THROUGH MONDAY NIGHT
 
MOSTLY CLEAR. HIGHS 41 TO 47. LOWS  
22 TO 28.    
TUESDAY
 
MOSTLY SUNNY. HIGHS 41 TO 48.  
 

 
TEMPERATURE  
BOISE 27 43 25 42  
MOUNTAIN HOME 24 44 21 43  
 

 
=  
 
IDZ016-140500-  
WESTERN MAGIC VALLEY-  
207 PM MST TUE JAN 13 2026  
 
...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST /5 AM  
MST/ MONDAY...  
   
TONIGHT
 
DECREASING CLOUDS. WIDESPREAD FOG. LOWS 23 TO 28.  
LIGHT WINDS.    
WEDNESDAY
 
WIDESPREAD FOG IN THE MORNING. SUNNY. HIGHS 42 TO  
47. LIGHT WINDS.    
WEDNESDAY NIGHT
 
MOSTLY CLEAR. WIDESPREAD FOG. LOWS 22 TO 27.  
LIGHT WINDS.    
THURSDAY
 
WIDESPREAD FOG IN THE MORNING. SUNNY. HIGHS 40 TO 45.  
LIGHT WINDS.    
THURSDAY NIGHT
 
MOSTLY CLEAR. AREAS OF FOG IN THE EVENING.  
WIDESPREAD FOG AFTER MIDNIGHT. LOWS 21 TO 26. LIGHT WINDS.    
FRIDAY
 
PATCHY FOG IN THE MORNING. SUNNY. HIGHS 41 TO 46.    
FRIDAY NIGHT AND SATURDAY
 
MOSTLY CLEAR. LOWS 21 TO 26. HIGHS  
42 TO 47.    
SATURDAY NIGHT
 
CLEAR. LOWS 22 TO 27.    
SUNDAY THROUGH TUESDAY
 
MOSTLY CLEAR. HIGHS 42 TO 50. LOWS  
22 TO 29.  
 

 
TEMPERATURE  
JEROME 26 43 25 42  
TWIN FALLS 24 44 24 44  
 

 
=  
 
IDZ029-140500-  
OWYHEE MOUNTAINS-  
207 PM MST TUE JAN 13 2026  
   
TONIGHT
 
PARTLY CLOUDY. PATCHY FOG. LOWS 29 TO 34.    
WEDNESDAY
 
SUNNY. AREAS OF FOG IN THE MORNING. PATCHY FOG IN  
THE AFTERNOON. HIGHS 39 TO 49.    
WEDNESDAY NIGHT
 
MOSTLY CLEAR. AREAS OF FOG IN THE EVENING.  
PATCHY FOG AFTER MIDNIGHT. LOWS 28 TO 33.    
THURSDAY
 
SUNNY. AREAS OF FOG. HIGHS 40 TO 50.    
THURSDAY NIGHT
 
MOSTLY CLEAR. PATCHY FOG. LOWS 25 TO 30.    
FRIDAY THROUGH MONDAY NIGHT
 
MOSTLY CLEAR. HIGHS 40 TO 50. LOWS  
25 TO 31.    
TUESDAY
 
MOSTLY SUNNY. HIGHS 41 TO 51.  
 

 
=  
 
IDZ015-140500-  
SOUTHWEST HIGHLANDS-  
207 PM MST TUE JAN 13 2026  
   
TONIGHT
 
PARTLY CLOUDY. WIDESPREAD FOG. LOWS 25 TO 32.    
WEDNESDAY
 
WIDESPREAD FOG IN THE MORNING. SUNNY. HIGHS 45 TO  
50.    
WEDNESDAY NIGHT
 
MOSTLY CLEAR. WIDESPREAD FOG. LOWS 22 TO 30.    
THURSDAY
 
WIDESPREAD FOG IN THE MORNING. SUNNY. HIGHS 43 TO 49.   
THURSDAY NIGHT
 
MOSTLY CLEAR. WIDESPREAD FOG. LOWS 20 TO 26.    
FRIDAY THROUGH TUESDAY
 
MOSTLY CLEAR. HIGHS 44 TO 54. LOWS  
22 TO 30.  
 

 
=  
 
IDZ030-140500-  
SOUTHERN TWIN FALLS COUNTY-  
207 PM MST TUE JAN 13 2026  
   
TONIGHT
 
MOSTLY CLEAR. WIDESPREAD FOG THIS EVENING. AREAS OF  
FOG AFTER MIDNIGHT. LOWS 25 TO 31.    
WEDNESDAY
 
AREAS OF FOG IN THE MORNING. SUNNY. HIGHS 45 TO 50.    
WEDNESDAY NIGHT
 
MOSTLY CLEAR. WIDESPREAD FOG. LOWS 24 TO 30.    
THURSDAY
 
AREAS OF FOG IN THE MORNING. SUNNY. HIGHS 43 TO 48.    
THURSDAY NIGHT
 
MOSTLY CLEAR. AREAS OF FOG IN THE EVENING.  
PATCHY FOG AFTER MIDNIGHT. LOWS 21 TO 26.    
FRIDAY THROUGH TUESDAY
 
MOSTLY CLEAR. HIGHS 43 TO 52. LOWS  
22 TO 31.  
 

 
=  
 
ORZ062-140500-  
BAKER COUNTY-  
107 PM PST TUE JAN 13 2026  
 
...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST /5 AM  
MST/ MONDAY...  
   
TONIGHT
 
PARTLY CLOUDY. AREAS OF FOG THIS EVENING. WIDESPREAD  
FOG AFTER MIDNIGHT. LOWS 24 TO 32. LIGHT WINDS.    
WEDNESDAY
 
SUNNY. WIDESPREAD FOG IN THE MORNING. PATCHY FOG IN  
THE AFTERNOON. HIGHS 41 TO 46. LIGHT WINDS.    
WEDNESDAY NIGHT
 
MOSTLY CLEAR. WIDESPREAD FOG. LOWS 20 TO 30.  
LIGHT WINDS.    
THURSDAY
 
WIDESPREAD FOG IN THE MORNING. SUNNY. HIGHS 42 TO 47.  
LIGHT WINDS.    
THURSDAY NIGHT
 
MOSTLY CLEAR. AREAS OF FOG. LOWS 20 TO 29.  
LIGHT WINDS.    
FRIDAY AND FRIDAY NIGHT
 
MOSTLY CLEAR. HIGHS 38 TO 44. LOWS  
20 TO 30.    
SATURDAY
 
SUNNY. HIGHS 40 TO 46.    
SATURDAY NIGHT
 
MOSTLY CLEAR. LOWS 20 TO 29.    
SUNDAY AND SUNDAY NIGHT
 
CLEAR. HIGHS 41 TO 46. LOWS 21 TO 30.    
MARTIN LUTHER KING JR DAY AND MONDAY NIGHT
 
MOSTLY CLEAR. HIGHS  
40 TO 45. LOWS 22 TO 31.    
TUESDAY
 
MOSTLY SUNNY. HIGHS 40 TO 45.  
 

 
TEMPERATURE  
BAKER CITY 24 45 20 46  
 

 
=  
 
ORZ061-140500-  
HARNEY COUNTY-  
107 PM PST TUE JAN 13 2026  
 
...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST /5 AM  
MST/ MONDAY...  
   
TONIGHT
 
PARTLY CLOUDY. AREAS OF FOG THIS EVENING. WIDESPREAD  
FOG AFTER MIDNIGHT. LOWS 21 TO 32. LIGHT WINDS.    
WEDNESDAY
 
WIDESPREAD FOG IN THE MORNING. SUNNY. HIGHS 46 TO  
51. LIGHT WINDS.    
WEDNESDAY NIGHT
 
MOSTLY CLEAR. WIDESPREAD FOG. LOWS 17 TO 30.  
LIGHT WINDS.    
THURSDAY
 
WIDESPREAD FOG IN THE MORNING. SUNNY. HIGHS 47 TO 52.  
LIGHT WINDS.    
THURSDAY NIGHT
 
MOSTLY CLEAR. AREAS OF FOG IN THE EVENING.  
WIDESPREAD FOG AFTER MIDNIGHT. LOWS 16 TO 27. LIGHT WINDS.    
FRIDAY THROUGH MONDAY NIGHT
 
MOSTLY CLEAR. HIGHS 45 TO 52. LOWS  
17 TO 30.    
TUESDAY
 
MOSTLY SUNNY. HIGHS 47 TO 53.  
 

 
TEMPERATURE  
BURNS 21 48 17 49  
 

 
=  
 
ORZ063-140500-  
MALHEUR COUNTY-  
207 PM MST TUE JAN 13 2026 /107 PM PST TUE JAN 13 2026/  
 
...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST /5 AM  
MST/ MONDAY...  
   
TONIGHT
 
PARTLY CLOUDY. AREAS OF FOG THIS EVENING. WIDESPREAD  
FOG AFTER MIDNIGHT. LOWS 22 TO 30. LIGHT WINDS.    
WEDNESDAY
 
SUNNY. WIDESPREAD FOG IN THE MORNING. PATCHY FOG IN  
THE AFTERNOON. HIGHS 37 TO 47. LIGHT WINDS.    
WEDNESDAY NIGHT
 
MOSTLY CLEAR. WIDESPREAD FOG. LOWS 19 TO 29.  
LIGHT WINDS.    
THURSDAY
 
SUNNY. WIDESPREAD FOG IN THE MORNING. PATCHY FOG IN  
THE AFTERNOON. HIGHS 39 TO 49. LIGHT WINDS.    
THURSDAY NIGHT
 
MOSTLY CLEAR. AREAS OF FOG IN THE EVENING.  
WIDESPREAD FOG AFTER MIDNIGHT. LOWS 17 TO 27. LIGHT WINDS.    
FRIDAY THROUGH MONDAY NIGHT
 
MOSTLY CLEAR. HIGHS 39 TO 49. LOWS  
17 TO 27.    
TUESDAY
 
MOSTLY SUNNY. HIGHS 41 TO 51.  
 

 
=  
 
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