018
NZUS99 KBOI 110424
TXTSFD
IDAHO STATE FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
924 PM MST SAT JAN 10 2026
HIGH PRESSURE WILL DOMINATE ACROSS MUCH OF IDAHO FOR THE UPCOMING WEEK,
PROMOTING STABLE CONDITIONS WITH VALLEY INVERSIONS. THE PRIMARY IMPACT FOR
SOUTHERN IDAHO WILL BE STAGNANT AIR IN THE VALLEYS, LEADING TO FOG/STRATUS AND
REDUCED AIR QUALITY OVER TIME. HOWEVER, A WEAK WEATHER SYSTEM WILL BE PASSING
THROUGH THE NORTH SUNDAY THROUGH TUESDAY, BRINGING A MIX OF VALLEY RAIN AND
MOUNTAIN SNOW TO THIS AREA. THIS SYSTEM POSES A RISK OF FREEZING RAIN AND
SLICK TRAVEL CONDITIONS IN THE NORTHERN VALLEYS, PARTICULARLY ON MONDAY
MORNING. GUSTY WINDS MAY ALSO ACCOMPANY THIS SYSTEM OVER THE HIGHER TERRAIN IN
THE NORTH AND CENTRAL AREAS. FOLLOWING THE DISTURBANCE, HIGH PRESSURE WILL
STRENGTHEN, RETURNING DRY AND MILD CONDITIONS TO THE ENTIRE STATE FOR THE
REMAINDER OF THE WEEK. TEMPERATURES ARE EXPECTED TO REMAIN GENERALLY ABOVE
NORMAL, THOUGH PERSISTENT INVERSIONS WILL KEEP VALLEY LOCATIONS COOLER.
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